FIRE RATED PRODUCTS - Nailor Industries

FIRE RATED PRODUCTS

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FIRE RATED PRODUCTS

Contents

Product Overview Page No.

Fire Rated Pattern Diffusers F4

6500FRD - Fixed Pattern - Square Neck F8
F8
6550FRD - Adjustable Pattern - Square Neck F8
F10
6500IVFRD - Fixed Pattern - Square Neck - Induction Vanes F10
F10
6505FRD - Fixed Pattern - Round Neck
F12
6555FRD - Adjustable Pattern - Round Neck F12
F14
6505IVFRD - Fixed Pattern - Round Neck - Induction Vanes F15
F15
Fire Rated Stamped Square Diffusers • Round Neck F17
F17
4010, 4020 - Fixed Pattern - Full Face
F19
4030, 4040 - Fixed Pattern - Panel Type F19
F21
F 4010-SM - Fixed Pattern - Full Face F23
4010-1, 4020-1
- Adjustable Pattern - Full Face F25
F25
4030-1, 4040-1 - Adjustable Pattern - Panel Type F27

4410, 4420 - Fixed Pattern - Full Face F25
F25
4430, 4440 - Fixed Pattern - Panel Type
F28
FIRE RATED PRODUCTS Fire Rated Architectural Square Diffusers • Round Neck F28

4410-UNI, 4420-UNI - Flat Panel - Full Face F30
F30
4430-UNI, 4440-UNI - Flat Panel - Panel Type

UNI-PDFR - Downblast - Perforated

UNI-ADFR - Downblast - Adjustable

Fire Rated Perforated Diffusers • Round Neck

Supply • 1, 2, 3 or 4-Way Adjustable Discharge Pattern

4070, 4080 - Flush Face

4075, 4085 - Drop Face

4070-SM - Flush Face

Return Models • Ducted

4070R, 4080R - Flush Face

4075R, 4085R - Drop Face

Supply • Curved Blade • 1, 2, 3 or 4-Way Adjustable Pattern

4070CB, 4080CB - Flush Face
4075CB, 4085CB - Drop Face

Fire Rated Modular Core Diffusers

7500FRD - Square Neck

7505FRD - Round Neck

F2 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PRODUCTS

Contents

Fire Rated Ductless Return Grilles Page No.

4111, 4112, 4113 - Perforated Face F32
4114, 4115, 4116 - Eggcrate Core F32
4117, 4118, 4119 - Open Face (grille by others) F32

Fire Rated Ductless Return Filter Grilles F34
F34
4121, 4122, 4123 - Filter Grille - Louvered Face
F36
4124, 4125, 4126 - Filter Grille - Eggcrate Face
F38
Fire Rated Ductless Return Ceiling Damper F38

4127, 4128, 4129 - Raised Type - Optional Grilles F40
F42
Open Face Fire Rated Plenum Diffusers F44
F46
5200L - Turned In Leg F

5200S - Hemmed Leg

Fire Rated Plenum Slot Diffusers

5500WB - Slot Diffuser - 'Wiper Blade' Pattern Controller
- 'Ice Tong' Pattern Controller
5500T - Slot Diffuser - 'Flip-Flop' Pattern Controller

5500 - Slot Diffuser FIRE RATED PRODUCTS

5500R - Return Model

Previous View Home Contents Dimensions Specification Performance F3

FIRE RATED PRODUCTS

GENERAL PRODUCT OVERVIEW

Fire Rated Products

Nailor offers a wide variety of fire rated products that are designed to provide the unobtrusive appearance required for
architectural excellence and the high engineering performance required for use in heating and cooling applications.
Ceiling diffusers, plenum slot diffusers and even ductless return air grilles are some of the many styles that are
available.
Nailor’s selection of fire rated products are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or
roof/ceiling assemblies which incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating.
For details of fire rated assemblies, see the current UL Fire Resistance Directory or ULC List of Equipment and
Materials Volume III Fire Resistance Ratings.

F

FIRE RATED PRODUCTS Model 6500FRD Models 4010, 4010-1, 4420

Fire Rated Pattern Diffusers Fire Rated Stamped Square Diffusers

Nailor pattern ceiling diffusers are a high capacity The 4000 and 4400 series models are a fire rated version

louvered face directional diffuser that can supply large of the popular RNS series. They have been specially

volumes of air at relatively low sound levels and pressure designed to provide an extremely cost effective, value

drops. Available in a variety of core styles and neck sizes; engineered product. They offer both the unobtrusive

a combination can be selected to suit a specified air appearance required for architectural excellence and the

pattern and deliver the desired volume of air to suit 360° diffusion pattern at minimum NC levels required for

particular requirements. high engineering performance.

Square Neck – Fixed Air Pattern –

Fixed Pattern Model 6500FRD See page F8 Full Face Models 4010, 4020 See page F12

Adjustable Pattern Model 6550FRD See page F8 Panel Type Models 4030, 4040 See page F12

Induction Vanes Model 6500IVFRD See page F8 Surface Mount Model 4010-SM (ULC only) See page F14

Round Neck – Adjustable Pattern –

Fixed Pattern Model 6505FRD See page F10 Full Face Models 4010-1, 4020-1 See page F15

Adjustable Pattern Model 6555FRD See page F10 Panel Type Models 4030-1, 4040-1 See page F15

Induction Vanes Model 6505IVFRD See page F10 Fixed Pattern 2-Cone –

Full Face Models 4410, 4420 See page F17

Panel Type Models 4430, 4440 See page F17

F4 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PRODUCTS

Fire Rated Architectural Square Diffusers

These models are a fire rated version of the popular UNI

series. Designed with the architect in mind, the diffusers

in this series are fashioned to blend in with most ceiling

types to create the ultimate aesthetic look. Nailor has

made available two performance styles; the standard UNI

with a fixed 360° air diffusion pattern and the downblast

diffuser for high ceiling applications.

Flat Panel –

Full Face Models 4410-UNI, 4420-UNI See page F19

Panel Models 4430-UNI, 4440-UNI See page F19

Downblast –

Perforated Model UNI-PDFR See page F21

Radial Vane Model UNI-ADFR See page F23

Models 4410-UNI, UNI-PDFR, UNI-ADFR

F

Models 4080, 4080CB Model 7500FRD FIRE RATED PRODUCTS

Fire Rated Perforated Diffusers Fire Rated Modular Core Diffusers

The fire rated diffusers in this series are the most popular This diffuser features four individual spring-loaded

choices of Nailor’s 4300 series perforated diffusers. 'modular' pattern controllers mounted in the neck. They

Models included are the adjustable pattern controller can be adjusted before or after installation, to provide a 1,

design for ultimate performance flexibility. Available in 2, 3 or 4-way discharge pattern. The diffuser maintains a

both supply and return air styles with a choice of a flush horizontal ceiling pattern from maximum to minimum flow.

or drop face. Square Neck –

Supply Air Adjustable Pattern Deflectors – Model 7500FRD See page F30

Flush Face Models 4070, 4080 See page F25 Round Neck –

Drop Face Models 4075, 4085 See page F25 Model 7505FRD See page F30

Surface Mount Model 4070-SM (ULC only) See page F27

Supply Air Curved Blade Pattern Controllers –

Flush Face Models 4070CB, 4080CB See page F28

Drop Face Models 4075CB, 4085CB See page F28

Return Air –

Flush Face Models 4070R, 4080R See page F25

Drop Face Models 4075R, 4085R See page F25

Previous View Home Contents Dimensions Specification Performance F5

FIRE RATED PRODUCTS

Model 4116 Model 4123

Fire Rated Ductless Return Grilles Fire Rated Ductless Return Filter Grilles
F The return air grille models in this series have been The return air filter grille models in this series have been
designed to compliment the Nailor range of fire rated designed to compliment the Nailor range of fire rated

supply diffusers. The grilles have been tested and supply diffusers. These grilles are manufactured to

classified for use without the requirement of duct work or accomodate a throw away filter by others. The grilles

supplementary support, they simply lay in place. The have been tested and classified for use without the

FIRE RATED PRODUCTS grilles are available in three styles, a perforated face, an requirement of duct work or supplementary support, they

eggcrate face or an open face model that can simply lay in place. The filter grilles are available in two

accommodate a grille by others. styles, a louvered face or an eggcrate face.

Perforated Face – Louvered Face –

Models 4111, 4112, 4113 See page F32 Models 4121, 4122, 4123 See page F34

Eggcrate Face – Eggcrate Face –

Models 4114, 4115, 4116 See page F32 Models 4124, 4125, 4126 See page F34

Open Face (grille by others) –

Models 4117, 4118, 4119 See page F32

Fire Rated Ductless Return Ceiling Dampers

for Optional Grille

This unique product features a raised ceiling radiation

damper mounted on an extended support frame above

the ceiling line. It will accomodate any type of return air

grille, filter grille or register manufactured from steel or

aluminum. This allows the design engineer greater

flexibility.

Models 4127, 4128, 4129 See page F36

Model 4129

F6 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PRODUCTS

Model 5200L Models 5575, 5575R

Open Face Fire Rated Plenum Diffusers Fire Rated Plenum Slot Diffusers F

This fire rated plenum is designed for lay-in T-Bar. It can These plenum slot diffusers are designed for lay-in T-Bar.

accommodate steel or aluminum grilles, registers or They are available for supply and return air. The supply air

linear type slot diffusers and bar grilles. A turned in leg models feature pattern controllers that are available in three

design is available to suit lay-in type cores and a hemmed performance styles, four slot widths, and up to four parallel

leg design is available to accommodate concealed slots. The return models are designed to match the look of

mounting angles. the supply air models. FIRE RATED PRODUCTS

Turned in Leg – 'Wiper Blade' Pattern Controller –

Model 5200L See page F38 Models 5550WB, 5575WB, 5510WB,

Hemmed Leg – 5515WB See page F40
'Ice Tong' Pattern Controller –
Model 5200S See page F38
Models 5550T, 5575T, 5510T See page F42
'Flip Flop' Pattern Controller –

Model 5575 See page F44

Return Air –

Models 5550R, 5575R, 5510R, 5515R See page F46

Previous View Home Contents Dimensions Specification Performance F7

FIRE RATED PATTERN DIFFUSERS

FIRE RATED PATTERN CATEGORY
CEILING DIFFUSERS CABS

• SQUARE NECK
• 3 HOUR RATING
• LOUVERED FACE
• HIGH CAPACITY
• LAY-IN

Models: CATEGORY
6500FRD Fixed Pattern 40U18.2 &
40U18.2W

6550FRD Adjustable Pattern

6500IVFRD Induction Vanes

F Model 6500FRD

FIRE RATED PRODUCTS The Nailor Models 6500FRD, 6550FRD and 6500IVFRD are UL/ULC Classified fire rated ceiling diffuser component
assemblies. The ceiling damper and thermal blanket accessory are listed in Underwriters Laboratories Fire Resistance
Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This design meets UL time-vs-
temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

Nailor Pattern Ceiling Diffusers provide a high capacity louvered face directional diffuser that can supply large volumes
of air at relatively low sound levels and pressure drops. Available in a variety of core styles and neck sizes, a combination
can be selected to suit a specified air pattern and deliver the desired volume of air to suit any particular requirements.

All models provide a tight horizontal discharge pattern from maximum to minimum airflow, making this product ideally suited
to VAV applications.

The Model 6550FRD Adjustable Pattern Ceiling Diffuser features four hinged, independently adjustable control vanes,
providing continuous adjustment of the air discharge pattern from horizontal to vertical on each side of the diffuser.

The Model 6500IVFRD Induction Vane Pattern Ceiling Diffuser features induction vanes mounted behind the louvers
that create counter-flowing jets of primary air that promote rapid mixing of the cool primary air with room air.

FEATURES: is standard. The adjustable model for instructions for UL/ULC Classification.
balancing is optional.
• Spring-loaded core. Removable Material: Corrosion-resistant steel.
without the use of tools. • Removing the inner core assembly
gives access to AV balancing option. Finish: AW Appliance White baked
• Engineered air diffusion patterns for enamel finish is standard. Other
1, 2, 3 or 4-way blow in a variety of • 212°F (100°C) fusible link is finishes are available.
square neck sizes. standard (165°F (74°C) is optional).
Performance Data: See non-fire
• Clean lines with no unsightly visible • All models must be installed in rated Model 6500 on page D18 or
screws. accordance with the installation Model 6500IV on page D39.

• The fixed ceiling radiation damper

Core Selection:

Note:

Model 6550FRD

is available in 4A, 4-way 3A, 3-way 2S, 2-way 2G, 2-way 1S, 1-way
opposite corner
core style 4A only.

F8 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PATTERN DIFFUSERS

Dimensional Data

Models 6500FRD, 6550FRD and 6500IVFRD • Square Neck

Type L Lay-in T-Bar Frame NOMINAL DUCT SIZE
NOMINAL DUCT SIZE - 1/4" (6)

CEILING RADIATION DAMPER (MODEL 0716) STEEL DUCT DROP
(BY OTHERS)
C = OPENED HEIGHT AV ADJ. VOLUME CONTROL (OPTIONAL) UL LISTED FUSIBLE LINK

ADJUSTABLE 4 5/8" (117) STANDARD
(5 3/8" (137) WITH AV OPTION)
VANES

THERMAL (MODEL

BLANKET STEEL 6550FRD

ACCESSORY DIFFUSER ONLY)
(MODEL 0726)

INDUCTION VANES (MODEL 6500IVFRD ONLY) F

CM - 1/4" (6) F9
CM = CEILING MODULE

Available Sizes and Dimensional Data Model 6550FRD Pattern Adjustment FIRE RATED PRODUCTS

Ceiling Nominal Opened ADJUSTABLE
VANE
Module Duct Size Height C
Horizontal Pattern
CM (square) Standard With AV Option Adjustable Vane Open Position

12 x 12 6 x 6 (152 x 152) 5 3/4 (146) 6 1/2 (165) ADJUSTABLE
VANE
(305 x 305) 9 x 9 (229 x 229) 7 1/4 (184) 8 (203)

6 x 6 (152 x 152) 5 3/4 (146) 6 1/2 (165)

9 x 9 (229 x 229) 7 1/4 (184) 8 (203)

24 x 24 12 x 12 (305 x 305) 9 (229) 9 3/4 (248)

(610 x 610) 15 x 15 (381 x 381) 10 1/4 (260) 11 (279)

18 x 18 (457 x 457) 11 3/4 (298) N/A

21 x 21 (533 x 533) 13 1/4 (337) N/A

Dimensions are in inches (mm).

Note: Vertical Pattern
If the square ceiling module is more than 3" (76) Adjustable Vane Closed Position
larger than the duct size, a module sized extended
panel is utilized.

AV Fusible Link Adjustable 3/16" (5) HEX KEY OPERATOR
Volume Control Option.
This UL Listed ceiling radiation
damper (Model 0716A) option
allows the ceiling radiation damper
to be used as a balancing damper
for volume control.
The ceiling damper blades are
adjusted with a hex key and perform
like a butterfly damper.

Note: Maximum square duct size
for this option is 15" x 15" (381 x
381).

Previous View Home Contents Dimensions Specification Performance

FIRE RATED PATTERN DIFFUSERS

FIRE RATED PATTERN CATEGORY
CEILING DIFFUSERS CABS

• ROUND NECK
• 3 HOUR RATING
• LOUVERED FACE
• HIGH CAPACITY
• LAY-IN

Models: Model 6505FRD

6505FRD Fixed Pattern
6555FRD Adjustable Pattern
6505IVFRD Induction Vanes

F

FIRE RATED PRODUCTS The Nailor Models 6505FRD, 6555FRD and 6505IVFRD are UL Classified fire rated ceiling diffuser component
assemblies. The ceiling damper and thermal blanket accessory are listed in Underwriters Laboratories Fire Resistance
Directory. This design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate
an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies, see the
current UL Fire Resistance Directory.

Nailor Pattern Ceiling Diffusers provide a high capacity louvered face directional diffuser that can supply large volumes
of air at relatively low sound levels and pressure drops. Available in a variety of core styles and neck sizes, a combination
can be selected to suit a specified air pattern and deliver the desired volume of air to suit any particular requirements.

All models provide a tight horizontal discharge pattern from maximum to minimum airflow, making this product ideally suited
to VAV applications.

The Model 6555FRD Adjustable Pattern Ceiling Diffuser features four hinged, independently adjustable control vanes,
providing continuous adjustment of the air discharge pattern from horizontal to vertical on each side of the diffuser.

The Model 6505IVFRD Induction Vane Pattern Ceiling Diffuser features induction vanes mounted behind the louvers
that create counter-flowing jets of primary air that promote rapid mixing of the cool primary air with room air.

FEATURES: is standard. The adjustable model for Material: Corrosion-resistant steel.
balancing is optional.
• Spring-loaded core. Removable Finish: AW Appliance White baked
without the use of tools. • Removing the inner core assembly enamel finish is standard. Other
gives access to AV balancing option. finishes are available.
• Engineered air diffusion patterns for
1, 2, 3 or 4-way blow. • 212°F (100°C) fusible link is Performance Data: See non-fire
standard. (165°F (74°C) is optional). rated Model 6500 on page D18 or
• Clean lines with no unsightly visible Model 6500IV on page D39.
screws. • All models must be installed in
accordance with the installation
• Round neck permits use of flexible instructions for UL Classification.
duct.

• The fixed ceiling radiation damper

Core Selection:

Note:

Model 6555FRD

is available in 4A, 4-way 3A, 3-way 2S, 2-way 2G, 2-way 1S, 1-way
opposite corner
core style 4A only.

F10 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PATTERN DIFFUSERS

Dimensional Data

Models 6505FRD, 6555FRD and 6505IVFRD • Round Neck

Type L Lay-in T-Bar Frame D = NOMINAL ROUND DUCT DIA.
D - 1/8" (3)
FLEXIBLE AIR DUCT (UL/ULC
CEILING RADIATION DAMPER (MODEL 0722) CLASS 0 OR 1) CONNECTOR
AV ADJ. VOLUME CONTROL (OPTIONAL) OR STEEL DUCT

C = OPENED HEIGHT UL LISTED FUSIBLE LINK

ADJUSTABLE

THERMAL VANES

BLANKET (MODEL

ACCESSORY STEEL 6555FRD

(MODEL 0725) DIFFUSER ONLY) 5 1/4"
(133)

INDUCTION VANES (MODEL 6505IVFRD ONLY) F

W x H = CORE/BACK PAN F11
CM - 1/4" (6)

CM = CEILING MODULE

Available Sizes and Dimensional Data Model 6555FRD Pattern Adjustment FIRE RATED PRODUCTS

Ceiling Core/ Round Opened ADJUSTABLE
Module Back Pan Neck Height VANE

CM WxH D C Horizontal Pattern
12 x 12 9x9 6 (152) 6 1/2 (165) Adjustable Vane Open Position
(305 x 305) (229 x 229) 8 (203) 7 1/2 (191)
9x9 6 (152) 6 1/2 (165) ADJUSTABLE
24 x 24 (229 x 229) 8 (203) 7 1/2 (191) VANE
(610 x 610) 12 x 12 8 (203) 7 1/2 (191)
(305 x 305) 10 (254) 8 1/2 (216) Vertical Pattern
10 (254) 8 1/2 (216) Adjustable Vane Closed Position
15 x 15 12 (305) 9 1/2 (241)
(381 x 381) 14 (356) 10 1/2 (267)
12 (305) 9 1/2 (241)
18 x 18 14 (356) 10 1/2 (267)
(457 x 457)

Dimensions are in inches (mm).

Note:
If the square ceiling module is more than 3" (76)
larger than the duct size, a module sized extended
panel is utilized.

AV Fusible Link Adjustable
Volume Control Option.
This UL Listed ceiling radiation
damper (Model 0722A) option
allows the ceiling radiation damper
to be used as a balancing damper
for volume control.
The damper blades are adjusted
with a hex key and perform like a
butterfly damper.

Previous View Home 3/16" (5) HEX KEY OPERATOR

Contents Dimensions Specification Performance

FIRE RATED STAMPED SQUARE DIFFUSERS

FIRE RATED STAMPED CATEGORY
SQUARE CEILING BZZU
DIFFUSERS
CATEGORY
• FIXED AIR PATTERN 40U18.1-1/2A
• HIGH PERFORMANCE
• ROUND NECK Model 4020
• 3 HOUR RATING
• LAY-IN

Full Face Models:
4010, 4020
Panel Type Models:

F 4030, 4040

FIRE RATED PRODUCTS The Nailor Model Series 4000 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters
Laboratories Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This
design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

These models are a fire rated version of the popular RNS Series. They have been specially designed to provide an
extremely cost effective, value engineered product. They offer both the unobtrusive appearance required for architectural
excellence and the 360° diffusion pattern at minimum NC levels required for high engineering performance. For these
reasons the RNS Series diffuser is the most popular choice for general applications.

The stamped one-piece cones eliminate mitered corners and the die-formed curves provide consistent quality and performance.
The stepped down core design increases capacity and minimizes streaking and smudging of the ceiling.

The diffusers provide stable diffusion and mixing patterns under constant and changing load conditions, and are particularly
suitable for variable air volume systems.

FEATURES: • Steel stamped cones for uniformity. • 212°F (100°C) fusible link is
standard (165°F (74°C) is optional).
• Factory assembled, 'packaged' • All 12 x 12 (300 x 300) and 24 x 24
product ensures compliance with fire (600 x 600) modules feature four • All models must be installed in
code, simplifies specification and cones in all neck sizes, providing a accordance with the installation
minimizes field labor. uniform appearance where different instructions for UL/ULC Classification.
sizes are installed in the same area.
• Tested in accordance with UL Material: Heavy gauge corrosion-
Standard 263, "Fire Tests of Building • The fixed ceiling radiation damper resistant steel.
Construction and Materials." is standard. The adjustable version for
balancing is optional. Finish: AW Appliance White baked
• Approved for use with flexible duct. enamel finish is standard. Other
Eliminates steel branch duct and • Quick, easy access to the AV finishes are available
drop. No costly independent hangers balancing option is achieved from the
and supports are required. face of the diffuser by removing the Performance Data: See non-fire rated
center plug. It is not necessary to Model RNS on page D82.
• Spring-loaded core is securely held remove the inner cone assembly.
in position and is removable without
the use of tools.

• Engineered air diffusion pattern.

F12 Previous View Home Contents Dimensions Specification Performance

FIRE RATED STAMPED SQUARE DIFFUSERS

Dimensional Data

Models 4010 and 4020 • Full Face

Model 4010 12 x 12 (300 x 300) module Type L Lay-in T-Bar Frame

Model 4020 24 x 24 (600 x 600) module

Imperial Modules Metric Modules D = NOMINAL ROUND DUCT DIA. FLEXIBLE AIR DUCT (UL/ULC
D - 1/8" (3) CLASS 0 OR 1) CONNECTOR
(inches) (mm) OR STEEL DUCT
CM - 1/4" (6) UL LISTED FUSIBLE LINK
Listed CM = 12 x 12 CM = 300 x 300 CEILING RADIATION DAMPER/ CM = CEILING MODULE
Neck FIRE STOP FLAP 3 1/4"
Size C = OPENED HEIGHT (83)
DA C D AC AV ADJ. VOLUME CONTROL (OPT.)
6 A
8 6 1 5 1/2 152 25 140 THERMAL STEEL
8 6 1/2 203 165 BLANKET DIFFUSER 1 1/8" (28)
Listed
Neck CM = 24 x 24 CM = 600 x 600
Size
DA C D AC
6
8 6 6 13/16 152 173 F
10
12 8 7 13/16 203 198
14
10 2 5/16 8 13/16 254 59 224

12 9 13/16 305 249

14 10 13/16 356 275

Models 4030 and 4040 • Panel Type FIRE RATED PRODUCTS

Model 4030 24 x 12 (600 x 300) module Type PL Panel Lay-in T-Bar Frame
Model 4040 24 x 24 (600 x 600) module
D = NOMINAL ROUND DUCT DIA.
Imperial Modules Metric Modules D - 1/8" (3) FLEXIBLE AIR DUCT (UL/ULC
(inches) (mm) CLASS 0 OR 1) CONNECTOR
C = OPENED HEIGHT CEILING RADIATION DAMPER/ OR STEEL DUCT
CM = 24 x 12 CM = 600 x 300 FIRE STOP FLAP UL LISTED FUSIBLE LINK

Listed DC DC AV ADJ. VOLUME CONTROL (OPT.) 3 1/4"
Neck (83)
Size 6 5 1/2 152 140 STEEL THERMAL
8 6 1/2 203 165 DIFFUSER BLANKET 1 1/8" (28)
6 CM = 600 x 600 1"
8 CM = 24 x 24 FACE SIZE = 12" x 12" (305 x 305) (25)
DC CM - 1/4" (6)
Listed DC
Neck 152 140 CM = CEILING MODULE
Size 6 5 1/2 203 165
8 6 1/2
6
8

AV Fusible Link Adjustable 3/16" (5) HEX KEY OPERATOR F13
Volume Control Option.
This UL Listed ceiling radiation Contents Dimensions Specification Performance
damper option allows the ceiling
radiation damper to be used as a
balancing damper for volume
control.
The ceiling damper blades are
adjusted with a hex key and perform
like a butterfly damper.

Previous View Home

FIRE RATED STAMPED SQUARE DIFFUSERS

FIRE RATED STAMPED D = NOMINAL 1
SQUARE CEILING ROUND DUCT DIA. 2
DIFFUSERS
D - 1/8" (3) 8
• FIXED AIR PATTERN
• ROUND NECK CATEGORY 63 7 3 1/4"
• 3 HOUR RATING 40U18.1-1/2A 4 9 (83)
• SURFACE MOUNT
FIRE RATED PRODUCTS 1" (25)
Model: 1 1/8" (29)
C = OPENED HEIGHT
4010-SM 10 AV ADJ. VOLUME CONTROL (OPTIONAL)
5 11 1/4" x 11 1/4" (286 x 286) CEILING OPENING
12 x 12 (300 x 300) Module 13" x 13" (330 x 330) = NOM. FACE SIZE
Type S Surface Mount Frame

F

ITEMS: 4. Thermal blanket. 9. Ceiling membrane.
1. Flexible air duct (UL/ULC Class 0 5. Corrosion-resistant steel diffuser. 10. Mounting screws.
6. Louvered deflector cones.
or 1) connector or steel duct. 7. Mounting support frame.
2. UL Listed fusible link. 212°F 8. Hanger wires (by others).

(100°C) standard.
3. Ceiling radiation damper/fire stop

flap.

A unique Nailor Product. The only fire rated diffuser assembly of its kind for surface mount applications. Popular applications
are fire rated ceiling designs which incorporate wooden joists on less than 24" (610) centers and 'Type X' gypsum wallboard
ceiling membrane protection.
This model is a fire rated version of the popular RNS Louvered Face Series.
Classified by Underwriters’ Laboratories of Canada (ULC) for use in ULC restrained or unrestrained floor/ceiling and or
roof/ceiling assemblies which incorporate air ducts and a hard (gypsum board) ceiling membrane with up to a 3 hour rating.
For details of fire rated assemblies, see the current ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.
The use of this product in fire rated ceilings with ceiling membrane protection and/or UL Classified assemblies in
the U.S.A. requires local approval by the authority having jurisdiction.

OPTIONS: Finish: AW Appliance White baked
• AV Fusible link adjustable volume enamel finish is standard. Other
control. Permits adjustment to damper finishes are available.
blades for balancing.
• Non-standard temperature UL Performance Data: See non-fire
Listed fusible link (165°F (74°C). rated Model RNS on page D82.

Available Sizes and Dimensional Data

Imperial Modules Metric Modules

Imperial Units SI Units SI Units
(inches) (mm) (mm)

Listed CM = 12 x 12 CM = 305 x 305 CM = 300 x 300
Neck Size DC DC DC
6 5 1/2 152 140 152 140
6 8 6 1/2 203 165 203 165
8

F14 Previous View Home Contents Dimensions Specification Performance

FIRE RATED STAMPED SQUARE DIFFUSERS

FIRE RATED ADJUSTABLE CATEGORY
STAMPED SQUARE BZZU
CEILING DIFFUSERS
CATEGORY
• HORIZONTAL TO VERTICAL 40U18.1-1/2A
ADJUSTABLE DISCHARGE
PATTERN Model 4020-1 F

• HIGH PERFORMANCE
• ROUND NECK
• 3 HOUR RATING
• LAY-IN

Full Face Models:
4010-1, 4020-1
Panel Type Models:
4030-1, 4040-1

The Nailor Model Series 4000 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters FIRE RATED PRODUCTS
Laboratories Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This
design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

These models are a fire rated version of the popular RNSA Series. They have been specially designed to provide an
extremely cost effective, value engineered product. They offer both the unobtrusive appearance required for architectural
excellence and the 360° diffusion pattern at minimum NC levels required for high engineering performance. They provide
the flexibility of a standard horizontal discharge or near vertical discharge pattern, useful in high ceiling applications where
better air penetration or spot heating may be desired.

The stamped one-piece cones eliminate mitered corners and the die-formed curves provide consistent quality and performance.

The diffusers provide stable diffusion and mixing patterns under constant and changing load conditions, and are particularly
suitable for variable air volume systems.

FEATURES: • Spring-loaded core is securely held • 212°F (100°C) fusible link is
in position and is removable without standard (165°F (74°C) is optional).
• Factory assembled, 'packaged' the use of tools.
product ensures compliance with fire • All models must be installed in
code, simplifies specification and • Engineered air diffusion pattern. accordance with the installation
minimizes field labor. instructions for UL/ULC Classification.
• Steel stamped cones for uniformity.
• Tested in accordance with UL Material: Heavy gauge corrosion-
Standard 263, "Fire Tests of Building • All 12 x 12 (300 x 300) and 24 x 24 resistant steel.
Construction and Materials." (600 x 600) modules feature four
cones in all neck sizes, providing a Finish: AW Appliance White baked
• Approved for use with flexible duct. uniform appearance where different enamel finish is standard. Other
Eliminates steel branch duct and sizes are installed in the same area. finishes are available.
drop. No costly independent hangers
and supports are required. • The fixed ceiling radiation damper Performance Data: See non-fire rated
is standard. The adjustable version for Model RNSA on page D87.
Adjustment: Unique screw-type balancing is optional.
arrangement is quick and simple from
the face of the diffuser. Permits • Quick, easy access to the AV
gradual adjustment of the air balancing option is achieved from the
discharge pattern from horizontal to face of the diffuser by removing the
vertical by rotating the center cone center plug. It is not necessary to
and so moving the inner cone remove the inner cone assembly.
assembly up or down.

Previous View Home Contents Dimensions Specification Performance F15

FIRE RATED STAMPED SQUARE DIFFUSERS

Dimensional Data

Models 4010-1 and 4020-1 • Full Face

Type L Lay-in T-Bar Frame D = NOMINAL ROUND DUCT DIA. FLEXIBLE AIR DUCT (UL/ULC
D - 1/8" (3) CLASS 0 OR 1) CONNECTOR
OR STEEL DUCT
CEILING RADIATION DAMPER/
FIRE STOP FLAP UL LISTED FUSIBLE LINK

STEEL THERMAL *3 1/4"

C = OPENED HEIGHT* DIFFUSER BLANKET (83)

F CM - 1/4" (6) A
B
CM = CEILING MODULE
FLEXIBLE AIR DUCT (UL/ULC
Models 4030-1 and 4040-1 • Panel Type CLASS 0 OR 1) CONNECTOR
OR STEEL DUCT
FIRE RATED PRODUCTSType PL Panel Lay-in T-Bar Frame D = NOMINAL ROUND DUCT DIA. UL LISTED FUSIBLE LINK
D - 1/8" (3)
C = OPENED HEIGHT *3 1/4"
CEILING RADIATION DAMPER/
(83)
FIRE STOP FLAP

* THERMAL STEEL

BLANKET DIFFUSER

2 1/4" (57)

0 TO 1/2" (13) MAX.

FACE SIZE = 12" x 12" (305 x 305)
CM - 1/4" (6)

CM = CEILING MODULE

Available Sizes and Dimensional Data Model 4030-1 24 x 12 (600 x 300) module
Model 4010-1 12 x 12 (300 x 300) module Model 4040-1 24 x 24 (600 x 600) module
Model 4020-1 24 x 24 (600 x 600) module

Imperial Modules Metric Modules Imperial Modules Metric Modules
(inches) (mm) (inches) (mm)

Listed CM = 12 x 12 CM = 300 x 300 Listed CM = 24 x 12 CM = 600 x 300
Neck Size
* *Neck Size D A B C D A B C D C* D C*
6 6 0 to 6 3/4 152 0 to 171 6
8 8 2 1/4 1/2 7 3/4 203 57 13 197 8 6 6 3/4 152 171
8 7 3/4 203 197
Listed CM = 24 x 24 CM = 600 x 600 Listed CM = 24 x 24 CM = 600 x 600
Neck Size
* *Neck Size D A B C D A B C D C* D C*
66 8 1/4 152 210 6
8 6 6 3/4 152 171
88 0 9 1/4 203 0 235 8 7 3/4 203 197

10 10 3 3/4 to 10 1/4 254 95 to 260 * Plus 1 1/2" (38) with AV option.

12 12 3/8 11 1/4 305 10 286

14 14 12 1/4 356 311

* Plus 1 1/2" (38) with AV option.

F16 Previous View Home Contents Dimensions Specification Performance

FIRE RATED STAMPED SQUARE DIFFUSERS

FIRE RATED STAMPED CATEGORY
SQUARE CEILING BZZU
DIFFUSERS
CATEGORY
• FIXED AIR PATTERN 40U18.1-1/2A
• HIGH PERFORMANCE
• ROUND NECK Model 4420 F
• 3 HOUR RATING
• LAY-IN

Full Face Models:
4410, 4420
Panel Type Models:
4430, 4440

The Nailor Model Series 4400 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters FIRE RATED PRODUCTS
Laboratories Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This
design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

These models are a fire rated version of the economical RNS2 Series. They have been specially designed to provide an
extremely cost effective, value engineered product. They offer both the unobtrusive appearance required for architectural
excellence and the 360° diffusion pattern at minimum NC levels required for high engineering performance.

The stamped one-piece cones eliminate mitered corners and the die-formed curves provide consistent quality and performance.
The stepped down core design increases capacity and the diffusers provide stable diffusion and mixing patterns under
constant and changing load conditions. They can accommodate a turn down of 80% without losing the ceiling coanda effect
and dumping, making them particularly suitable for variable air volume systems.

FEATURES: • All 12 x 12 (300 x 300) and 24 x 24 • All models must be installed in
(600 x 600) modules feature two accordance with the installation
• Factory assembled, 'packaged' cones in all neck sizes, providing a instructions for UL/ULC Classification.
product ensures compliance with fire uniform appearance where different
code, simplifies specification and sizes are installed in the same area. Material: Heavy gauge corrosion-
minimizes field labor. resistant steel.
• The fixed ceiling radiation damper
• Tested in accordance with UL is standard. The adjustable version for Finish: AW Appliance White baked
Standard 263, "Fire Tests of Building balancing is optional. enamel finish is standard. Other
Construction and Materials." finishes are available.
• Quick, easy access to the AV
• Approved for use with flexible duct. balancing option is achieved from the Performance Data: See non-fire rated
Eliminates steel branch duct and face of the diffuser by removing the Model RNS2 on page D96.
drop. No costly independent hangers center plug.
and supports are required.
• 212°F (100°C) fusible link is
• The inner cone assembly is fixed and standard (165°F (74°C) is optional).
non-removable, providing additional
security and safety.

• Engineered air diffusion pattern.

• Steel stamped cones for uniformity.

Previous View Home Contents Dimensions Specification Performance F17

FIRE RATED STAMPED SQUARE DIFFUSERS

Dimensional Data

Models 4410 and 4420 • Full Face

Model 4410 12 x 12 (300 x 300) module Type L Lay-in T-Bar Frame
Model 4420 24 x 24 (600 x 600) module

Imperial Modules Metric Modules D = NOMINAL ROUND DUCT DIA.

(inches) (mm) D - 1/8" (3) FLEXIBLE AIR DUCT (UL/ULC
CLASS 0 OR 1) CONNECTOR
Listed CM = 12 x 12 CM = 300 x 300 CEILING RADIATION DAMPER/ OR STEEL DUCT
FIRE STOP FLAP UL LISTED FUSIBLE LINK
Neck D A C E DACE C = OPENED HEIGHT
Size AV ADJ. VOLUME 3 1/4"
CONTROL (OPTIONAL) (83)
66 1 5 1/2 1 1/4 152 25 140 32
6 1/2 203 165 STEEL A
88 DIFFUSER
THERMAL E
Listed CM = 24 x 24 CM = 600 x 600 BLANKET

Neck D A C E DACE
Size

F 66 6 13/16 152 173
88 7 13/16 203 198

10 10 2 5/16 8 13/16 7/8 254 59 224 22 CM - 1/4" (6)

12 12 9 13/16 305 249 CM = CEILING MODULE

14 14 10 13/16 356 275

FIRE RATED PRODUCTS Models 4430 and 4440 • Panel Type

Model 4430 24 x 12 (600 x 300) module Type PL Panel Lay-in T-Bar Frame

Model 4440 24 x 24 (600 x 600) module D = NOMINAL ROUND DUCT DIA.
D - 1/8" (3)
Imperial Modules Metric Modules C = OPENED HEIGHT CEILING RADIATION DAMPER/ FLEXIBLE AIR DUCT (UL/ULC
(inches) (mm) FIRE STOP FLAP FACE SIZE = 12" x 12" (305 x 305) CLASS 0 OR 1) CONNECTOR
CM - 1/4" (6) OR STEEL DUCT
Listed CM = 24 x 12 CM = 600 x 300 AV ADJ. VOLUME CONTROL (OPTIONAL) UL LISTED FUSIBLE LINK
Neck CM = CEILING MODULE
Size DC DC STEEL 3 1/4"
DIFFUSER (83)
6 6 5 1/2 152 140
8 8 6 1/2 203 165 THERMAL 1" (25)
CM = 24 x 24 CM = 600 x 600 BLANKET 1 1/4" (32)
Listed
Neck DC DC
Size
6 5 1/2 152 140
6 8 6 1/2 203 165
8

AV Fusible Link Adjustable
Volume Control Option.
This UL Listed ceiling radiation
damper option allows the ceiling
radiation damper to be used as a
balancing damper for volume
control.
The ceiling damper blades are
adjusted with a hex key and perform
like a butterfly damper.

F18 Previous View Home 3/16" (5) HEX KEY OPERATOR

Contents Dimensions Specification Performance

FIRE RATED ARCHITECTURAL SQUARE DIFFUSERS

FIRE RATED CATEGORY
ARCHITECTURAL SQUARE BZZU
CEILING DIFFUSERS

• HIGH PERFORMANCE
• ROUND NECK
• 3 HOUR RATING
• LAY-IN

Full Face Models: CATEGORY
4410-UNI, 4420-UNI 40U18.1-1/2A
Panel Type Models:
4430-UNI, 4440-UNI F

Model 4420-UNI

The Nailor Model Series 4400 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters FIRE RATED PRODUCTS
Laboratories Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This
design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

These models are a fire rated version of the popular UNI Series. They have been specially designed to provide the unobtrusive
appearance required for architectural excellence and the 360° diffusion pattern at minimum NC levels required for high
engineering performance. The stamped one-piece outer cone eliminates mitered corners and the die-formed curves
provide consistent quality and performance.

The UNI diffuser compliments any decor, blending beautifully with virtually any architectural style or requirement. The UNI
diffuser provides a stable, tight to the ceiling, horizontal air diffusion and mixing pattern under constant and changing load
conditions throughout the cataloged range of air volumes, and is particularly suitable for variable air volume applications.

FEATURES: • Face panel is virtually flush with the • Access to the AV balancing option
ceiling line and is double skinned for is achieved by removing the inner
• Factory assembled, 'packaged' rigidity and strength. Features a cone assembly.
product ensures compliance with fire hemmed edge for a professional
code, simplifies specification and finish. • 212°F (100°C) fusible link is
minimizes field labor. standard (165°F (74°C) is optional).
• With two cones in all sizes, the
• Tested in accordance with UL diffusers provide a uniform appearance • All models must be installed in
Standard 263, "Fire Tests of Building where different neck sizes are accordance with the installation
Construction and Materials." installed in the same area. instructions for UL/ULC Classification.

• Approved for use with flexible duct. • RC Retaining Channels are Material: Heavy gauge corrosion-
Eliminates steel branch duct and available for ceiling tile installation on resistant steel.
drop. No costly independent hangers the face of the inner cone assembly.
and supports are required. Finish: AW Appliance White baked
• Unique, concealed neck bracketry enamel finish is standard. Other
• Spring-loaded core is securely held is virtually invisible from most angles. finishes are available
in position and is removable without
the use of tools. • The fixed ceiling radiation damper Performance Data: See non-fire rated
is standard. The adjustable version for Model UNI on page D105.
• Engineered air diffusion pattern. balancing is optional.

• Steel stamped cones for uniformity.

Previous View Home Contents Dimensions Specification Performance F19

FIRE RATED ARCHITECTURAL SQUARE DIFFUSERS

Dimensional Data

Models 4410-UNI and 4420-UNI • Full Face

Model 4410-UNI 12 x 12 (300 x 300) module Type L Lay-in T-Bar Frame
Model 4420-UNI 24 x 24 (600 x 600) module

Imperial Modules Metric Modules D = NOMINAL ROUND DUCT DIA.
D - 1/8" (3)
(inches) (mm) FLEXIBLE AIR DUCT (UL/ULC
CLASS 0 OR 1) CONNECTOR
Listed CM = 12 x 12 CM = 300 x 300 CEILING RADIATION DAMPER/ OR STEEL DUCT
FIRE STOP FLAP UL LISTED FUSIBLE LINK
Neck D A C E DACE C = OPENED HEIGHT
Size AV ADJ. VOLUME 3 1/4"
CONTROL (OPTIONAL) (83)
66 1 5 1/2 5/8 152 25 140 16 EA
6 1/2 203 165 STEEL
88 DIFFUSER FLEXIBLE AIR DUCT (UL/ULC
THERMAL CLASS 0 OR 1) CONNECTOR
Listed CM = 24 x 24 CM = 600 x 600 BLANKET OR STEEL DUCT
UL LISTED FUSIBLE LINK
Neck D A C E DACE
Size 3 1/4"
(83)
F 66 6 13/16 152 173
88 7 13/16 203 198 1" (25)
5/8" (16)
10 10 2 5/16 8 13/16 3/8 254 59 224 10 CM - 1/4" (6)
CM = CEILING MODULE
12 12 9 13/16 305 249

14 14 10 13/16 356 275

FIRE RATED PRODUCTS Models 4430-UNI and 4440-UNI • Panel Type

Model 4430-UNI 24 x 12 (600 x 300) module Type PL Panel Lay-in T-Bar Frame

Model 4440-UNI 24 x 24 (600 x 600) module D = NOMINAL ROUND DUCT DIA.
D - 1/8" (3)
Imperial Modules Metric Modules C = OPENED HEIGHT CEILING RADIATION DAMPER/
(inches) (mm) FIRE STOP FLAP 9 3/8" x 9 3/8" (238 x 238)
FACE SIZE = 12" x 12" (305 x 305)
CM = 600 x 300 AV ADJ. VOLUME CONTROL (OPTIONAL)
CM - 1/4" (6)
Listed CM = 24 x 12 DC STEEL CM = CEILING MODULE
Neck DIFFUSER
Size DC 152 140
203 165 THERMAL
6 6 5 1/2 CM = 600 x 600 BLANKET
8 8 6 1/2
CM = 24 x 24 DC
Listed
Neck DC 152 140
Size 203 165
6 5 1/2
6 8 6 1/2
8

Architectural Option
Model 4420-UNI
The Model 4420-UNI diffuser with optional
RC Retaining Channel compliments any
decor blending beautifully with virtually any
architectural style or requirement for a
unique 'custom' appearance.
The retaining channel is shipped separately
for field installation of a ceiling tile that has
been cut to size and installs directly on the
face of the inner cone assembly.
The result is a high performance, fire rated
diffuser that blends harmoniously with the
specified architectural ceiling design.

F20 Previous View Home Contents Dimensions Specification Performance

FIRE RATED ARCHITECTURAL SQUARE DIFFUSERS

FIRE RATED FIXED CATEGORY
PERFORATED BZZU
DOWNBLAST DIFFUSER

• HIGH PERFORMANCE
• ROUND NECK
• 3 HOUR RATING
• LAY-IN

Model: CATEGORY
UNI-PDFR 40U18.1-1/2A

Model UNI-PDFR F

The Nailor Model UNI-PDFR is a UL/ULC Classified fire rated ceiling diffuser assembly listed in Underwriters Laboratories FIRE RATED PRODUCTS
Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This design meets
UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

The Model UNI-PDFR has been specially designed to provide both the unobtrusive appearance for architectural excellence
and high airflow at minimum NC levels needed in theatre, auditorium and other high ceiling applications. A circular
perforated aperture in the diffuser face provides both a horizontal and vertical apportion of the airflow. The horizontal portion
provides a tight 360° ceiling diffusion pattern and the vertical portion provides a true and long downward projection.

The Model UNI-PDFR heavy duty ceiling diffusers are designed for effective heating and spot cooling applications where
conditions and floor to ceiling heights are variable.

FEATURES: • 360° horizontal discharge pattern • All models must be installed in
plus vertical projection. accordance with the installation
• Factory assembled, 'packaged' instructions for UL/ULC Classification.
product ensures compliance with fire • Heavy gauge face plate features a
code, simplifies specification and hemmed edge for a professional, Material: Heavy gauge, corrosion-
minimizes field labor. clean finish. Perforated face has 3/8" resistant steel.
(10) diameter holes on 5/8" (16)
• Tested in accordance with UL staggered centers. Finish: BK Flat Black or AW
Standard 263, "Fire Tests of Building Appliance White baked enamel. Other
Construction and Materials." • The fixed ceiling radiation damper is finishes are available.
standard. The adjustable version for
• Approved for use with flexible duct. balancing is not available on this Performance Data: See non-fire rated
Eliminates steel branch duct and model. Balancing should be performed Model UNI-PD on page D111.
drop. No costly independent hangers by installing a remote damper at the
and supports are required. branch duct take-off.

• Engineered air diffusion pattern. • 212°F (100°C) fusible link is
standard (165°F (74°C) is optional).
• Steel stamped shapes for uniformity.

• Suitable for theatres, auditoriums,
factories, warehouses, convention
halls, coliseums, shopping malls and
other high ceiling applications.

Previous View Home Contents Dimensions Specification Performance F21

FIRE RATED ARCHITECTURAL SQUARE DIFFUSERS

Dimensional Data

Model UNI-PDFR

Type L Lay-in -Bar Frame D = NOMINAL ROUND DUCT DIA.
D - 1/8" (3)
FLEXIBLE AIR DUCT (UL/ULC
FIRE RATED PRODUCTS CEILING RADIATION DAMPER/ CLASS 0 OR 1) CONNECTOR
FIRE STOP FLAP OR STEEL DUCT
F = OPENED HEIGHT
UL LISTED FUSIBLE LINK

STEEL
DIFFUSER

THERMAL 3 1/4"
BLANKET (83)

C 2 5/16"
(59)

FE
17 1/2" x 17 1/2" (445 x 445)
CM - 1/4" (6)
CM = CEILING MODULE

Available Sizes and Dimensional Data

Imperial Modules Metric Modules

Imperial Units SI Units SI Units
(inches) (mm) (mm)

Listed CM = 24 x 24 CM = 610 x 610 CM = 600 x 600
Neck Size D DE F C
E F CDE F C 305 249
12 12 30 356 286 275 30
9 13/16 305 249
14 14 11 1/4 10 13/16 1 3/16 356 286 275

F22 Previous View Home Contents Dimensions Specification Performance

FIRE RATED ARCHITECTURAL SQUARE DIFFUSERS

FIRE RATED ADJUSTABLE CATEGORY
DOWNBLAST DIFFUSER BZZU

• HIGH PERFORMANCE
• ROUND NECK
• 3 HOUR RATING
• LAY-IN

Model: CATEGORY
UNI-ADFR 40U18.1-1/2A

Model UNI-ADFR F

The Nailor Model UNI-ADFR is a UL/ULC Classified fire rated ceiling diffuser assembly listed in Underwriters Laboratories FIRE RATED PRODUCTS
Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This design meets
UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

The Model UNI-ADFR has been specially designed to provide both the unobtrusive appearance for architectural excellence
and high airflow at minimum NC levels needed in theatre, auditorium and other high ceiling applications. Radial vanes in
the adjustable face damper permit air pattern adjustment from full horizontal to approximately 50/50 horizontal/vertical. Full
adjustment requires only a half turn and is easily accomplished from the floor using the ring operator and a pole (by others).

The Model UNI-ADFR heavy duty ceiling diffusers are designed for effective heating and spot cooling applications where
conditions and floor to ceiling heights are variable. At the full vertical setting, they provide a true and long downward
projection. At full horizontal setting, they produce the tight ceiling pattern that is required for excellent VAV performance.

FEATURES: • 0 – 50% airflow vertical projection Material: Heavy gauge, corrosion-
capability. resistant steel.
• Factory assembled, 'packaged'
product ensures compliance with fire • Ring operator can be adjusted using Finish: BK Flat Black or AW
code, simplifies specification and a pole. Appliance White baked enamel. Other
minimizes field labor. finishes are available.
• Heavy gauge face plate features a
• Tested in accordance with UL hemmed edge for a professional, Performance Data: See non-fire rated
Standard 263, "Fire Tests of Building clean finish. Model UNI-AD on page D114.
Construction and Materials."
• The fixed ceiling radiation damper is
• Approved for use with flexible duct. standard. The adjustable version for
Eliminates steel branch duct and balancing is not available on this
drop. No costly independent hangers model. Balancing should be performed
and supports are required. by installing a remote damper at the
branch duct take-off.
• Engineered air diffusion pattern.
• 212°F (100°C) fusible link is
• Steel stamped shapes for uniformity. standard (165°F (74°C) is optional).

• Suitable for theatres, auditoriums, • All models must be installed in
factories, warehouses, convention accordance with the installation
halls, coliseums, shopping malls and instructions for UL/ULC Classification.
other high ceiling applications.

• 360° horizontal discharge pattern.

Previous View Home Contents Dimensions Specification Performance F23

FIRE RATED ARCHITECTURAL SQUARE DIFFUSERS

Dimensional Data

Model UNI-ADFR

Type L Lay-in T-Bar Frame D = NOMINAL ROUND DUCT DIA.
D - 1/8" (3)
FLEXIBLE AIR DUCT (UL/ULC
FIRE RATED PRODUCTS CEILING RADIATION DAMPER/ CLASS 0 OR 1) CONNECTOR
FIRE STOP FLAP OR STEEL DUCT
F = OPENED HEIGHT
UL LISTED FUSIBLE LINK

STEEL
DIFFUSER

THERMAL 3 1/4"
BLANKET (83)

ADJUSTABLE C 2 5/16"
DOWNBLAST (59)

DAMPER

1 1/4" (32)

F RING OPERATOR
E - 1/8" (3)
17 1/2" x 17 1/2" (445 x 445)
CM - 1/4" (6)

CM = CEILING MODULE

Available Sizes and Dimensional Data

Imperial Modules Metric Modules

Imperial Units SI Units SI Units
(inches) (mm) (mm)

Listed CM = 24 x 24 CM = 610 x 610 CM = 600 x 600
Neck Size D
E F CDE F C DE F C
12 12 30
8 9 13/16 1 3/16 305 203 249 305 203 249 30
14 14 10 10 13/16 356 254 275 356 254 275

F24 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PERFORATED DIFFUSERS

FIRE RATED PERFORATED CATEGORY
CEILING DIFFUSERS BZZU

• 1, 2, 3 OR 4-WAY ADJUSTABLE
DISCHARGE PATTERN

• ROUND NECK
• 3 HOUR RATING
• LAY-IN

Supply Models: CATEGORY
40U18.1-1/2A

4070, 4080 Flush Face
4075, 4085 Drop Face

Return Models:

4070R, 4080R Flush Face Model 4080 F
4075R, 4085R Drop Face

The Nailor Series 4070 and 4080 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters FIRE RATED PRODUCTS
Laboratories Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This
design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

The Nailor Fire Rated Perforated Ceiling Diffuser has been designed to provide the unobtrusive appearance required
for architectural excellence and the high engineering performance required for use in heating and cooling applications. They
have excellent performance in variable air volume systems and provide a tight horizontal discharge pattern without marking
the ceiling.

FEATURES: • 212°F (100°C) fusible link is Material: Corrosion-resistant steel.
standard (165°F (74°C) is optional).
• Hinged removable face plate with Finish: AW Appliance White baked
quick-release spring latches. • Perforated face with 3/16" (5) enamel finish is standard. Other
diameter holes on staggered 1/4" (6) finishes are available.
• Discharge pattern can adjust to centers (51% free area).
vertical or 1, 2, 3 or 4-way horizontal, Performance Data: See non-fire rated
before or after installation. • Return models have the same face Model 4320 (flush face) on page
and frame construction as the supply D148, Model 4325 (drop face) on
• Discharge pattern is adjusted by models to match appearance. The page D151 and Models 4360 (flush
dropping the perforated face and deflectors are omitted for return face) and 4365 (drop face) on page
rotating the pattern controllers. applications. D205.

• Round necks permit use of flexible • All models must be installed in
duct. accordance with the installation
instructions for UL/ULC Classification.
• The fixed ceiling radiation damper is
standard. The adjustable ceiling radiation • Ductless returns are also available.
damper for balancing is optional.

• Dropping the perforated face gives
access to this balancing feature.

Available Air Patterns: 4-way 3-way 2-way corner 2-way opposite 1-way

All diffusers are shipped with the
standard 4-way pattern, but the air
pattern can be simply field adjusted
by lowering the hinged face and
rotating the spring loaded pattern
controllers.

Previous View Home Contents Dimensions Specification Performance F25

FIRE RATED PERFORATED DIFFUSERS

Dimensional Data

Models 4070, 4075, 4080 and 4085

D = NOMINAL ROUND DUCT DIA. FLEXIBLE AIR DUCT (UL/ULC
D - 1/8" (3) CLASS 0 OR 1) CONNECTOR
OR STEEL DUCT
CEILING RADIATION DAMPER/FIRE STOP FLAP

AV ADJ. VOLUME CONTROL (OPTIONAL)

C = OPENED HEIGHT ADJUSTABLE UL LISTED FUSIBLE LINK

THERMAL PATTERN OPTIONAL 3/8" (10)
DROP FACE FOR
BLANKET CONTROLLERS
USE WITH TEGULAR
STEEL CEILING PANELS.

DIFFUSER 3 1/4"
(83)

A

F CM - 1/4" (6)
CM = CEILING MODULE

Available Sizes and Dimensional Data Model Number Designation
Supply Models:
FIRE RATED PRODUCTS Imperial Modules Metric Modules 4070, Flush Face
4075, Drop Face
Imperial Units SI Units SI Units 12 x 12 (300 x 300) module
(inches) (mm) (mm) Type L Lay-in Frame
4080, Flush Face
Listed CM = 12 x 12 CM = 305 x 305 CM = 300 x 300 4085, Drop Face
Neck Size 24 x 24 (600 x 600) module
DA C DAC DAC Type L Lay-in Frame
6 Return Models:
8 6 1 7/8 6 3/8 152 48 162 152 48 162 Add suffix 'R' to above model
8 7 3/8 203 187 203 187 number.
Listed
Neck Size CM = 24 x 24 CM = 610 x 610 CM = 600 x 600

6 DA C DAC D AC
8
10 6 6 7/8 152 175 152 175
12
14 8 7 7/8 203 200 203 200

10 2 3/8 8 7/8 254 60 225 254 60 225

12 9 7/8 305 251 305 251

14 10 7/8 356 276 356 276

AV Fusible Link Adjustable
Volume Control Option.
This UL Listed ceiling radiation
damper option allows the ceiling
radiation damper to be used as a
balancing damper for volume
control.
The ceiling damper blades are
adjusted with a hex key and perform
like a butterfly damper.

3/16" (5) HEX KEY OPERATOR

F26 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PERFORATED DIFFUSERS

FIRE RATED PERFORATED D = NOMINAL 1
CEILING DIFFUSERS ROUND DUCT DIA. 2

• 1, 2, 3 OR 4-WAY ADJUSTABLE D - 1/8" (3) 8
DISCHARGE PATTERN
CATEGORY C = OPENED HEIGHT 63 7 3 1/4"
• ROUND NECK 40U18.1-1/2A 4 (83)
• 3 HOUR RATING
• SURFACE MOUNT 9
1 3/8"
Supply Model: 10 AV ADJ. VOLUME CONTROL (OPTIONAL) (38)
5 11 1/4" x 11 1/4" (286 x 286) CEILING OPENING
4070-SM 13" x 13" (330 x 330) = NOM. FACE SIZE F

12 x 12 (300 x 300) Module
Type S Surface Mount Frame

ITEMS: 4. Thermal blanket. 9. Ceiling membrane. FIRE RATED PRODUCTS
1. Flexible air duct (UL/ULC Class 0 5. Corrosion-resistant steel diffuser. 10. Mounting screws.
6. Adjustable pattern controllers.
or 1) connector or steel duct. 7. Mounting support frame.
2. UL Listed fusible link. 212°F 8. Hanger wires (by others).

(100°C) standard.
3. Ceiling radiation damper/fire stop

flap.

Classified by Underwriters’ Laboratories of Canada (ULC) for use in ULC restrained or unrestrained floor/ceiling and or
roof/ceiling assemblies which incorporate air ducts and a hard (gypsum board) ceiling membrane with up to a 3 hour rating.
For details of fire rated assemblies, see the current ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.
The use of this product in fire rated ceilings with ceiling membrane protection and/or UL Classified assemblies in
the U.S.A. requires local approval by the authority having jurisdiction.
The discharge pattern is 1, 2, 3, or 4-way horizontal and is adjusted by dropping the perforated face and rotating the pattern
deflectors. Removable face has spring clips for easy access to the damper.

OPTIONS: Finish: AW Appliance White baked
• AV Fusible link adjustable volume enamel finish is standard. Other
control. Permits adjustment to damper finishes are available.
blades for balancing.
• Non-standard temperature UL Performance Data: See non-fire
Listed fusible link (165°F (74°C)). rated Model 4320 on page D148.

Available Sizes and Dimensional Data

Imperial Modules Metric Modules

Imperial Units SI Units SI Units
(inches) (mm) (mm)

Listed CM = 12 x 12 CM = 305 x 305 CM = 300 x 300
Neck Size DC DC DC
6 5 7/8 152 149 152 149
6 8 6 7/8 203 175 203 175
8

Previous View Home Contents Dimensions Specification Performance F27

FIRE RATED PERFORATED DIFFUSERS

FIRE RATED PERFORATED CATEGORY
CURVED BLADE DIFFUSERS BZZU

• 4-WAY ADJUSTABLE DISCHARGE
PATTERN (STANDARD)

• ROUND NECK
• 3 HOUR RATING
• LAY-IN

Supply Models: CATEGORY
40U18.1-1/2A
4070CB, 4080CB
4075CB, 4085CB Flush Face
Drop Face

F Model 4080CB

FIRE RATED PRODUCTS The Nailor Series 4070CB and 4080CB are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters
Laboratories Fire Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This
design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

The Nailor Curved Blade Perforated Diffusers provide the unobtrusive, smooth appearance preferred by many
architects with superior features and performance characteristics. Designed to maximize throw, this model features
individually adjustable, friction pivoted curved blade deflectors mounted directly under the neck. They project a tight,
uniform horizontal blanket of air over a wide range of air volumes and provide excellent performance in variable air volume
systems.

These models feature a 4-way adjustable discharge pattern as standard. The deflector blades can be adjusted to control
both the angle of discharge and hence throw from full horizontal to vertical in each direction and also damper the air volume.
By closing off the deflectors in one or more directions, directional control can also be achieved. They are optionally
available with a factory supplied 1, 2 or 3-way adjustable discharge pattern controller (see page D156).

The 4075CB and 4085CB feature a dropped (extended) face panel that is available to compliment tegular tile ceiling
systems, so that the panel remains flush with the ceiling line.

FEATURES: • Dropping the perforated face gives Material: Corrosion-resistant steel.
access to this balancing feature.
• Hinged removable face plate with Finish: AW Appliance White baked
quick-release spring latches. • 212°F (100°C) fusible link is enamel finish is standard. Other
standard (165°F (74°C) is optional). finishes are available.
• Discharge pattern can be adjusted
from horizontal to vertical, before or • Perforated face with 3/16" (5) Performance Data: See non-fire
after installation. diameter holes on staggered 1/4" (6) rated Model 4320CB on page D159.
centers (51% free area).
• Discharge pattern is adjusted by
dropping the perforated face and • All models must be installed in
moving the curved blade deflectors. accordance with the installation
instructions for UL/ULC Classification.
• Round necks permit use of flexible
duct. • Ductless returns are also available.

• The fixed ceiling radiation damper is
standard. The adjustable ceiling
radiation damper for balancing is
optional.

F28 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PERFORATED DIFFUSERS

Dimensional Data

Models 4070CB, 4075CB, 4080CB and 4085CB

D = NOMINAL ROUND DUCT DIA. FLEXIBLE AIR DUCT (UL/ULC
D - 1/8" (3) CLASS 0 OR 1) CONNECTOR
OR STEEL DUCT
CEILING RADIATION DAMPER/FIRE STOP FLAP

AV ADJ. VOLUME CONTROL (OPTIONAL)

C = OPENED HEIGHT CURVED UL LISTED FUSIBLE LINK
BLADE
THERMAL DEFLECTORS OPTIONAL 3/8" (10)
BLANKET DROP FACE FOR

STEEL 3 1/4" USE WITH TEGULAR
DIFFUSER (83) CEILING PANELS.

A

CM - 1/4" (6) F
CM = CEILING MODULE

Available Sizes and Dimensional Data Model Number Designation
Supply Models:
Imperial Modules Metric Modules 4070CB, Flush Face FIRE RATED PRODUCTS
4075CB, Drop Face
Imperial Units SI Units SI Units 12 x 12 (300 x 300) module
(inches) (mm) (mm) Adjustable Curved Blades
Type L Lay-in Frame
Listed CM = 12 x 12 CM = 305 x 305 CM = 300 x 300 4080CB, Flush Face
Neck Size 4085CB, Drop Face
DA C DAC DAC 24 x 24 (600 x 600) module
6 Adjustable Curved Blades
8 6 1 7/8 6 3/8 152 48 162 152 48 162 Type L Lay-in Frame
8 7 3/8 203 187 203 187
Listed
Neck Size CM = 24 x 24 CM = 610 x 610 CM = 600 x 600

6 DA C DAC D AC
8
10 6 6 7/8 152 175 152 175
12
14 8 7 7/8 203 200 203 200

10 2 3/8 8 7/8 254 60 225 254 60 225

12 9 7/8 305 251 305 251

14 10 7/8 356 276 356 276

AV Fusible Link Adjustable
Volume Control Option.
This UL Listed ceiling radiation
damper option allows the ceiling
radiation damper to be used as a
balancing damper for volume
control.
The ceiling damper blades are
adjusted with a hex key and perform
like a butterfly damper.

3/16" (5) HEX KEY OPERATOR

Previous View Home Contents Dimensions Specification Performance F29

FIRE RATED MODULAR CORE DIFFUSERS

FIRE RATED SQUARE CATEGORY
MODULAR CORE CEILING CABS
DIFFUSERS

• 1, 2, 3 OR 4-WAY ADJUSTABLE
DISCHARGE PATTERN

• 3 HOUR RATING
• LAY-IN

Square Neck Model: CATEGORY
7500FRD 40U18.2 &
Round Neck Model: 40U18.2W

F 7505FRD Model 7500FRD

FIRE RATED PRODUCTS The Nailor Model 7500FRD is a UL/ULC Classified fire rated ceiling diffuser component assembly. The ceiling damper and
thermal blanket accessory are listed in Underwriters Laboratories Fire Resistance Directory and Underwriters' Laboratories
of Canada List of Equipment and Materials. This design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

This model is classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.
The Model 7505FRD is qualified for UL installation only.

Nailor Modular Core Diffusers provide a versatile 'modular core' design that is available in a comprehensive range of
sizes and air capacities, providing optimum simplicity and flexibility for field adjustment of the discharge air pattern. They
maintain a horizontal ceiling pattern from maximum to minimum flow and make an excellent choice for use in variable air
volume systems.

These models feature four individual spring-loaded 'modular' pattern controllers mounted in the neck. They can be adjusted
before or after installation, to provide a 1, 2, 3 or 4-way discharge pattern by simply rotating one or more of the pattern
controllers which takes only a few seconds.

FEATURES:

• Each diffuser has four separate • The fixed ceiling radiation damper is • Must be installed in accordance
individually adjustable spring-loaded standard. The AV adjustable option is with the installation instructions for
modular cores. not available on this model as the core UL/ULC Classification.
assembly restricts access. Balancing
• Simple adjustment for a 1, 2, 3 or should be performed by installing a Material: Corrosion-resistant steel.
4-way horizontal discharge pattern remote damper in the duct take-off.
without the use of tools. Finish: AW Appliance White baked
• Round neck Model 7505FRD enamel finish is standard. Other
• Square neck Model 7500FRD has permits use of flexible duct. finishes are available.
ample collar depth and allows a solid
duct connection. • 212°F (100°C) fusible link is Performance Data: See non-fire
standard (165°F (74°C) is optional). rated Model 7500 on page D224.

Modular Core Adjustments

4-way 3-way 3-way 2-way corner 2-way opposite 1-way

All diffusers are shipped with the standard 4-way pattern, but the air pattern can be simply field adjusted by lowering
the hinged face and rotating the spring-loaded pattern controllers.

F30 Previous View Home Contents Dimensions Specification Performance

FIRE RATED MODULAR CORE DIFFUSERS

Dimensional Data NOMINAL DUCT SIZE
NOMINAL DUCT SIZE - 1/4" (6)
Model 7500FRD • Square Neck

Type L Lay-in T-Bar Frame

CEILING RADIATION DAMPER STEEL DUCT DROP
(MODEL 0716) (BY OTHERS)
UL LISTED FUSIBLE LINK
C = OPENED HEIGHT STEEL
DIFFUSER 4 5/8"
(117)
THERMAL
BLANKET
ACCESSORY
(MODEL 0726)

CM - 1/4" (6) F
CM = CEILING MODULE
Model 7505FRD • Round Neck FLEXIBLE AIR DUCT (UL/ULC FIRE RATED PRODUCTS
D = NOMINAL ROUND DUCT DIA. CLASS 0 OR 1) CONNECTOR
Type L Lay-in T-Bar Frame D - 1/8" (3) OR STEEL DUCT
UL LISTED FUSIBLE LINK
C = OPENED HEIGHT CEILING RADIATION DAMPER (MODEL 0722)
5 1/4"
STEEL (133)
DIFFUSER

THERMAL
BLANKET
ACCESSORY
(MODEL 0725)

W x H = CORE/BACK PAN
CM - 1/4" (6)

CM = CEILING MODULE

Available Sizes and Dimensional Data Model 7505FRD
Model 7500FRD

Ceiling Nominal Opened Ceiling Core/ Round Opened
Height Module Back Pan Neck Height
Module Duct Size
C CM WxH D C
CM (square) 5 3/4 (146) 12 x 12 9x9 6 (152) 6 1/2 (165)
6 3/4 (171) (305 x 305) (229 x 229) 8 (203) 7 1/2 (191)
12 x 12 6 x 6 (152 x 152) 7 1/4 (184) 9x9 6 (152) 6 1/2 (165)
8 x 8 (203 x 203) 5 3/4 (146) 24 x 24 (229 x 229) 8 (203) 7 1/2 (191)
(305 x 305) 9 x 9 (229 x 229) 6 3/4 (171) (610 x 610) 10 x 10 6 (152) 6 1/2 (165)
7 1/4 (184) (254 x 254) 8 (203) 7 1/2 (191)
6 x 6 (152 x 152) 7 3/4 (197) 12 x 12 8 (203) 7 1/2 (191)
9 (229) (305 x 305) 10 (254) 8 1/2 (216)
8 x 8 (203 x 203) 9 3/4 (248) 10 (254) 8 1/2 (216)
10 1/4 (260) 15 x 15 12 (305) 9 1/2 (241)
9 x 9 (229 x 229) 10 3/4 (273) (381 x 381) 14 (356) 10 1/2 (267)
11 3/4 (298) 12 (305) 9 1/2 (241)
10 x 10 (254 x 254) 12 3/4 (324) 18 x 18 14 (356) 10 1/2 (267)
(457 x 457)
24 x 24 12 x 12 (305 x 305)

(610 x 610) 14 x 14 (356 x 56)

15 x 15 (381 x 381)

16 x 16 (406 x 406)

18 x 18 (457 x 457)

20 x 20 (508 x 508)

Note: If the square ceiling module is more than 3" (76) larger than the Dimensions are in inches (mm).
square neck (core/backpan), a module sized extended panel is utilized.

Previous View Home Contents Dimensions Specification Performance F31

FIRE RATED DUCTLESS RETURN GRILLES

FIRE RATED DUCTLESS CATEGORY
RETURN GRILLES BZZU & CABS

• VOLUME CONTROL OPTION
• 3 HOUR RATING
• LAY-IN

Models:

Perforated Face: CATEGORY
4111, 4112, 4113 40U18.2W

Eggcrate Face: Model 4116
4114, 4115, 4116

F Open Face ( grille by others) :

4117, 4118, 4119

FIRE RATED PRODUCTS The Nailor Series 4100 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters Laboratories Fire
Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This design meets UL
time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

These models have been designed to compliment the Nailor range of fire rated supply diffusers. Successfully tested and
classified for use without the requirement of duct work or supplementary support, they simply lay in place. They enable the
ceiling plenum to be utilized as a ductless return air system and so provide an extremely economical means of fire protection
in return air applications.

FEATURES: • 212°F (100°C) fusible link is Material: Galvanized steel frame and
standard (165°F (74°C) is optional). blades. Non-asbestos UL Classified
• Available in both popular perforated insulation.
and eggcrate face styles. • All models must be installed
in accordance with installation Finish: AW Appliance White face is
• Perforated face models are corrosion- instructions for UL/ULC Classification. standard to match supply models.
resistant steel with 3/16" (5) diameter Other finishes are available.
holes on staggered 1/4" (6) centers Option: AV Fusible Link Adjustable
(51% free area). Volume Control. Permits field balancing Performance Data: See non-fire
of return air grille. rated models. Perforated Model
• Eggcrate models feature an 1/2 x 4302 on page D211. Eggcrate Model
1/2 x 1/2 (13 x 13 x 13) aluminum grid 51EC on page G95.
core.

Available Sizes and Dimensional Data

Model Face Ceiling Module Opened Height A
No. Type
Perforated Imperial Metric Standard With
4111 (inches) (mm) AV Option
4112 Eggcrate
4113 12 x 12 300 x 300 6 1/4 (159) 7 1/4 (184)
4114 Open
4115 24 x 12 600 x 300 6 1/4 (159) 7 1/4 (184)
4116
4117 24 x 24 600 x 600 12 1/4 (311) 13 1/4 (337)
4118
4119 12 x 12 300 x 300 6 1/4 (159) 7 1/4 (184)

24 x 12 600 x 300 6 1/4 (159) 7 1/4 (184)

24 x 24 600 x 600 12 1/4 (311) 13 1/4 (337)

12 x 12 300 x 300 6 1/4 (159) 7 1/4 (184)

24 x 12 600 x 300 6 1/4 (159) 7 1/4 (184)

24 x 24 600 x 600 12 1/4 (311) 13 1/4 (337) Dimensions are in inches (mm).

F32 Previous View Home Contents Dimensions Specification Performance

FIRE RATED DUCTLESS RETURN GRILLES

Dimensional Data

Models 4111 to 4119 • Perforated, Eggcrate or Open Face

Perforated Grille Models:
4111, 4112, 4113
Eggcrate Grille Models:
4114, 4115, 4116
Open Face Models
(grille by others):
4117, 4118, 4119

UL LISTED FUSIBLE LINK

DAMPER BLADES: BLADE INSULATION F
GALVANIZED STEEL
PERFORATED (STEEL) OR A
DAMPER FRAME: EGGCRATE (ALUMINUM) GRILLE FIRE RATED PRODUCTS
GALVANIZED STEEL

CEILING 2 1/8"
(54)

CM - 1/4" (6)
CM = CEILING MODULE

Models 4111 to 4119 • Perforated, Eggcrate or Open Face • With AV Option

Perforated Grille Models with DAMPER BLADES: BLADE INSULATION
Adjustable Volume Control: GALVANIZED STEEL
PERFORATED (STEEL) OR
4111 AV, 4112 AV, 4113 AV DAMPER FRAME: EGGCRATE (ALUMINUM) GRILLE
GALVANIZED STEEL
Eggcrate Grille Models with
Adjustable Volume Control: A

4114 AV, 4115 AV, 4116 AV AV ADJUSTABLE 3 1/8"
FUSIBLE LINK (79)
Open Face Models with ASSEMBLY
Adjustable Volume Control: UL LISTED FUSIBLE LINK

4117 AV, 4118 AV, 4119 AV CM - 1/4" (6)
CM = CEILING MODULE
AV Fusible Link Adjustable
Volume Control Option. CEILING

This UL Listed option allows
the damper to be used as a
balancing damper for volume
control.

The blades are adjusted with a
3/16" (5) hex key (by others) and
perform like a butterfly damper.

Previous View Home Contents Dimensions Specification Performance F33

FIRE RATED DUCTLESS RETURN FILTER GRILLES

FIRE RATED DUCTLESS CATEGORY
RETURN FILTER GRILLES BZZU & CABS

• VOLUME CONTROL OPTION
• 3 HOUR RATING
• LAY-IN

Models: CATEGORY
40U18.2W
Louvered Face:
4121, 4122, 4123

Eggcrate Face:
4124, 4125, 4126

F

Model 4123

FIRE RATED PRODUCTS The Nailor Series 4100 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters Laboratories Fire
Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This design meets UL
time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

These models have been designed to compliment the Nailor range of fire rated supply diffusers. Successfully tested and
classified for use without the requirement of duct work or supplementary support, they simply lay in place. They enable the
ceiling plenum to be utilized as a ductless return air system and so provide an extremely economical means of fire protection
in return air applications.

FEATURES: • 212°F (100°C) fusible link is Finish: AW Appliance White face is
standard (165°F (74°C) is optional). standard to match supply models.
• Available in both popular louvered Other finishes are available.
face and eggcrate face styles. • All models must be installed in
accordance with installation instructions Performance Data: See non-fire rated
• Filter grille frames are constructed for UL/ULC Classification. models. Louvered Face Model
of corrosion-resistant steel and 61FB45 on page G41. Eggcrate
feature a hinged core secured by 1/4 Option: AV Fusible Link Adjustable Model 61FE on page G95.
turn fasteners. Volume Control. Permits field balancing
of return air grille.
• Louvered face models feature fixed
45° deflection blades on 3/4" (19) Material: Galvanized steel frame and
centers. blades. Non-asbestos UL Classified
insulation.
• Eggcrate models feature a 1/2 x 1/2
x 1/2 (13 x 13 x 13) aluminum grid core.

Available Sizes and Dimensional Data

Model Filter Ceiling Module Opened
No. Grille
Imperial Metric Height
4121 Louvered (inches) (mm) A
4122 Face
4123 12 x 12 300 x 300 10 (254)
4124 Eggcrate 10 (254)
4125 Face 24 x 12 600 x 300 16 (406)
4126 10 (254)
24 x 24 600 x 600 10 (254)
16 (406)
12 x 12 300 x 300

24 x 12 600 x 300 Dimensions are in inches (mm).

24 x 24 600 x 600

F34 Previous View Home Contents Dimensions Specification Performance

FIRE RATED DUCTLESS RETURN FILTER GRILLES

Dimensional Data

Models 4121 to 4126 • Louvered or Eggcrate Face

Louvered Grille Models:
4121, 4122, 4123
Eggcrate Grille Models:
4124, 4125, 4126

UL LISTED FUSIBLE LINK STEEL FILTER GRILLE WITH HINGED CORE. F
FIXED 45 BLADES OR EGGCRATE CORE.
DAMPER BLADES:
GALVANIZED STEEL BLADE INSULATION
DAMPER FRAME:
GALVANIZED STEEL THERMAL
SHROUD

EXTENSION FRAME: LISTED SIZE - 5/8" (16) 2 1/8" A FIRE RATED PRODUCTS
GALVANIZED STEEL (54)

CEILING GRID 4 1/4"
ATTACHMENT (108)

CLIPS (4)

SUPPLEMENTARY
(OR EXISTING)
CEILING GRID
MEMBER

CM - 1/4" (6) CEILING
CM = CEILING MODULE

STEEL FILTER GRILLE WITH HINGED CORE.
FIXED 45 BLADES OR EGGCRATE CORE.

Models 4121 to 4126 • Louvered or Eggcrate Face • With AV Option

Louvered Grille Models with

Adjustable Volume Control: DAMPER BLADES: BLADE INSULATION

4121 AV, 4122 AV, 4123 AV GALVANIZED STEEL THERMAL
SHROUD
Eggcrate Grille Models with DAMPER FRAME:
Adjustable Volume Control: GALVANIZED STEEL

4124 AV, 4125 AV, 4126 AV EXTENSION FRAME: UL LISTED FUSIBLE LINK AV ADJUSTABLE 2 1/8" A
GALVANIZED STEEL FUSIBLE LINK ASSEMBLY (54)
AV Fusible Link
Adjustable Volume CEILING GRID LISTED SIZE - 5/8" (16) 4 1/4"
Control Option. ATTACHMENT (108)

This UL Listed option CLIPS (4)
allows the damper to be
SUPPLEMENTARY
(OR EXISTING)
CEILING GRID
MEMBER

used as a balancing

damper for volume control. CM - 1/4" (6) CEILING
CM = CEILING MODULE
The blades are adjusted with a STEEL FILTER GRILLE WITH HINGED CORE.
3/16" (5) hex key (by others) and

perform like a butterfly damper. FIXED 45 BLADES OR EGGCRATE CORE.

Previous View Home Contents Dimensions Specification Performance F35

FIRE RATED DUCTLESS RETURN CEILING DAMPER

FIRE RATED DUCTLESS CATEGORY
RETURN CEILING DAMPER BZZU & CABS
FOR OPTIONAL GRILLE

• RAISED TYPE
• 3 HOUR RATING
• LAY-IN

Models: CATEGORY
4127, 4128, 4129 40U18.2W

F

Model 4129

FIRE RATED PRODUCTS The Nailor Series 4100 are UL/ULC Classified fire rated ceiling diffuser assemblies listed in Underwriters Laboratories Fire
Resistance Directory and Underwriters' Laboratories of Canada List of Equipment and Materials. This design meets UL
time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which
incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies,
see the current UL Fire Resistance Directory or ULC List of Equipment and Materials Vol. III Fire Resistant Ratings.

This unique Nailor product features a raised ceiling radiation damper mounted on an extended support frame above the
ceiling line. The integrity of the ceiling membrane protection is maintained by the addition of a peripheral, thermally
retardant, shroud. The fire rated protected cavity allows the design engineer great flexibility. As the fire protection and
integrity are supplied solely by the damper assembly, any type of return air grille, filter grille or register of steel or aluminum
construction may be selected and installed in the fire rated ceiling. One such example is when a return air register with
opposed blade damper is required.

FEATURES: Option: AV Fusible Link Adjustable Material: Galvanized steel frame and
Volume Control. Permits field balancing. blades. Non-asbestos UL Classified
• 212°F (100°C) fusible link is The ceiling damper blades are insulation.
standard (165°F (74°C) is optional). adjusted with a hex key and perform
like a butterfly damper. This option Performance Data: Refer to relevant
• Permits selection of any Nailor would be specified when the selected performance tables in catalog for
6100 Series steel or 5100 Series return grille has no damper and grille or register selected.
aluminum return grille, which is volume control is still desired.
manufactured to suit.

• All models must be installed in
accordance with installation instructions
for the UL/ULC Classification.

Available Sizes and Dimensional Data

Model Ceiling Module Opened
No.
Imperial Metric Height
4127 (inches) (mm) A
4128
4129 12 x 12 300 x 300 10 (254)
10 (254)
24 x 12 600 x 300 16 (406)

24 x 24 600 x 600

F36 Previous View Home Dimensions are in inches (mm).
Contents Dimensions Specification Performance

FIRE RATED DUCTLESS RETURN CEILING DAMPER

Dimensional Data

Models 4127, 4128 and 4129

Some Commonly Selected
Grille and Register Options:

• 61EC (-O) Type L
Steel Return Air Eggcrate Grille
(Register).

• 6145H (-O)

Steel Return Air Grille

(Register). Fixed 45° Deflection

blades on 3/4" (19) centers. UL LISTED FUSIBLE LINK STEEL OR ALUMINUM RETURN F
GRILLE/REGISTER AS REQUIRED.
• 5145H (-O) DAMPER BLADES: BLADE INSULATION
Aluminum Return Air Grille GALVANIZED STEEL
(Register). Fixed 45° Deflection DAMPER FRAME: THERMAL
blades on 3/4" (19) centers. GALVANIZED STEEL SHROUD

• 7145H (-O)
Premium Airfoil Blade

Aluminum Return Air Grille EXTENSION FRAME: LISTED SIZE - 5/8" (16) 2 1/8" A FIRE RATED PRODUCTS
(Register). GALVANIZED STEEL (54)
• 61FP
Steel Perforated Face Filter CEILING GRID 4 1/4"
Grille. ATTACHMENT (108)

Note: Maximum grille depth CLIPS (4)

SUPPLEMENTARY
(OR EXISTING)
CEILING GRID
MEMBER

capacity for this model is 4"

(102). CM - 1/4" (6)
CM = CEILING MODULE
CEILING

STEEL OR ALUMINUM RETURN
GRILLE/REGISTER AS REQUIRED.

Models 4127, 4128 and 4129 • With AV Option

Some Commonly Selected DAMPER BLADES: BLADE INSULATION
Grille Options: GALVANIZED STEEL
THERMAL
• 6145H DAMPER FRAME: SHROUD
Steel Return Air Grille. Fixed GALVANIZED STEEL
45° Deflection blades on 3/4"
(19) centers. EXTENSION FRAME: UL LISTED FUSIBLE LINK AV ADJUSTABLE 2 1/8" A
GALVANIZED STEEL FUSIBLE LINK ASSEMBLY (54)
• 5145H
Aluminum Return Air Grille. CEILING GRID LISTED SIZE - 5/8" (16) 4 1/4"
Fixed 45° Deflection blades on ATTACHMENT (108)
3/4" (19) centers.
CLIPS (4)
• 61FP
Steel Perforated Face Filter SUPPLEMENTARY
Grille. (OR EXISTING)
CEILING GRID
MEMBER

Note: Maximum grille depth CM - 1/4" (6) CEILING
capacity for this model is 2 1/4" CM = CEILING MODULE
(57).
STEEL OR ALUMINUM RETURN
GRILLE AS REQUIRED.

Previous View Home Contents Dimensions Specification Performance F37

FIRE RATED OPEN FACE PLENUM DIFFUSERS

FIRE RATED OPEN FACE CATEGORY
PLENUM DIFFUSER BZGU

• FOR USE WITH LINEAR TYPE
DIFFUSERS

• 3 HOUR RATING
• LAY-IN

Turned In Leg Model: Model 5200L
5200L
Hemmed Leg Model:
5200S

F

FIRE RATED PRODUCTS The Nailor Model Series 5200 is a UL Classified fire rated air terminal unit listed in Underwriters Laboratories Fire
Resistance Directory. This design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate
an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies, see the
current UL Fire Resistance Directory.

A maximum of 20 lineal ft. (6096) of 2" (51) wide throat opening, 10 lineal ft. (3048) of 4" (102) wide throat opening, or
5 lineal ft. (1524) of 6" (152) and 8" (203) width throat opening is allowed for each 113 sq. inch (72,903 mm2) duct outlet
area permitted in specific design.

The 5200 Series provides flexibility, in that a variety of steel or aluminum grilles, registers or linear type slot diffusers and
bar grilles may be used.

FEATURES: • Model 5200L features a flat lip for • All models must be installed
lay-in type cores. in accordance with installation
• Available in 20", 24", 30", 36", 48" instructions for UL Classification.
and 60" (500, 600, 750, 900, 1200 • Model 5200S features a hemmed
and 1500) nominal lengths to suit both leg for surface mounting a grille or Material: Corrosion-resistant steel
imperial and metric ceiling systems. diffuser with Type C concealed plenum and damper blades. Non-
mounting straps. asbestos UL Classified insulation.
• 6", 8", 10" or 12" (152, 203, 254
or 305) inlet sizes are available. • 212°F (100°C) fusible link is Finish: Exposed surfaces are
standard (165°F (74°C) is optional). finished in BK Black.
• Plenum casing width (throat)
dimension is variable and fabricated
to suit required grille or diffuser.

Minimum = 1 11/16" (43).

Maximum = 8" (203).

F38 Previous View Home Contents Dimensions Specification Performance

FIRE RATED OPEN FACE PLENUM DIFFUSERS

Dimensional Data Model Series 5200 – Type S
Hemmed Leg • Surface Mount Diffuser
Model Series 5200 – Type L
Turned In Leg • Lay-in Core Style

HANGER WIRE 1/2" HANGER WIRE 1/2"
W + 1" (25) (13) W + 1" (25) (13)

INSULATED UL 9" INSULATED UL 9" F
DAMPER LISTED (229) DAMPER LISTED (229)
BLADE FUSIBLE BLADE FUSIBLE
12 1/2" 12 1/2"
CEILING LINK (318) CEILING LINK (318)
GRID GRID
CLIP W 3" CLIP W 3" FIRE RATED PRODUCTS
(76) (76)
(4 SIDES) 15/32" (12) (4 SIDES) 1/4" (6)
W – 15/16" (24) W – 1/2" (13)
THERMAL UL LISTED W + 1/4" (6)
SHROUD W + 1/4" (6) CEILING

GRID
(BY OTHERS)

• 'W' Dimension (throat) is variable Model Series 5000, Frame Type M. Slot Diffuser – Model Series 5000,
and manufactured to suit Frame Types C and D.
required grille or diffuser. Unit is installed by diagonally
inserting it into plenum opening • Available inlet sizes:
Minimum 'W' = 1 11/16" (43). and allowing it to sit back on
plenum flanges. Round sizes are: 5", 6", 7" and
Maximum 'W' = 8" (203). 8" (127, 152, 178 and 203).
• Type S design is for flanged
• Type L design is for flangeless diffusers with concealed Flat oval sizes are: 9", 10" and
lay-in core styles. e.g. Eggcrate mounting straps which locate in 12" (229, 254 and 305).
Core Model 51EC Type C Core hemmed plenum leg. e.g. Linear
Only or Linear Slot Diffuser –

Available Lengths CM - 3/8" (10)

Nominal Length (CM)
20" (508)
24" (610)
30" (762)
36" (914)
48" (1219)
60" (1524)

Previous View Home CM = CEILING MODULE F39

Contents Dimensions Specification Performance

FIRE RATED PLENUM SLOT DIFFUSERS

FIRE RATED PLENUM SLOT CATEGORY
SUPPLY DIFFUSER BZGU

• ADJUSTABLE 'WIPER BLADE'
PATTERN CONTROLLER

• 3 HOUR RATING
• LAY-IN

Models:

5550WB 1/2" (13) Slot Width

5575WB 3/4" (19) Slot Width

5510WB 1" (25) Slot Width Model 5575WB

F 5515WB 1 1/2" (38) Slot Width

The Nailor Series 5500WB is a UL Classified fire rated air terminal unit listed in Underwriters Laboratories Fire Resistance
Directory. This design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

FIRE RATED PRODUCTS All diffusers are classified for use in UL restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate
an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies, see the
current UL Fire Resistance Directory.

The 5500WB Series features a friction pivoted adjustable extruded aluminum pattern controller in each slot. A key feature
is the gasketed 'wiper blade' design. The direction of airflow is adjustable through a full 180° from the face of the diffuser.
In the horizontal discharge setting, either left or right, the gasket seal at the top of the blade seals tightly against the inside
of the diffuser plenum casing or factory supplied center T-Bar, assuring positive directional control. The pattern controller
may also be set for vertical discharge.

In the horizontal discharge setting, the coanda effect is maximized and a tight blanket of air is projected across the ceiling.
The horizontal pattern is maintained throughout a wide range of cataloged air volumes from maximum to minimum flow and
the 5500WB Series therefore provides excellent performance in variable air volume applications.

FEATURES: • Pattern controller is split mid-way Options:
on units 36" (900) and longer, permitting
• Full 180° pattern controller a 2-way opposite blow pattern from a • T1 Supplementary ceiling grid (T-Bar)
adjustment means there are no 'lefts single slot. member on inlet side (UL Listed).
or rights'.
• Return models are available. See • EX External foil back insulation.
• Available in 20", 24", 36", 48" and page F46.
60" (500, 600, 900, 1200 and 1500) • ID Inlet damper.
nominal lengths to suit both imperial • Units must be installed in accordance
and metric ceiling systems. with the installation instructions for UL Material: Corrosion-resistant steel
Classification. plenum, extruded aluminum pattern
• Choice of four slot widths. controllers and factory supplied center
• 212°F (100°C) fusible link is tees.
• Choice of 1, 2, 3 or 4 parallel slots. standard (165°F (74°C) is optional).
Finish: Black on pattern controllers
• Factory installed center tees on and exposed surfaces. AW Appliance
multi-slot models are standard. They White on factory supplied T-Bars.
are dropped slightly below the diffuser
face to align flush with the ceiling grid. Performance Data: See non-fire rated
Model Series 5700 on page C12.

Air Patterns Multi-Slot
Single Slot

Horizontal Horizontal Vertical One-way Two-way Vertical and
Left Right Horizontal Opposite Horizontal
Home
F40 Previous View Contents Dimensions Specification Performance

FIRE RATED PLENUM SLOT DIFFUSERS

Dimensional Data UNDERWRITER'S LABORATORIES, INC.®
CLASSIFIED AIR TERMINAL UNITS
Model Series 5500WB LISTED FOR UP TO 3 HOURS
CATEGORY BZGU
CM - 3/8" (10)
B 1 W + 1" (25) 11
3 4 2
10 3 1 1/2"
12 1/2" SLOT (13)
A (318)
9"
CM = CEILING MODULE 4 (229)
5
Items: 10
9 F
1. Fusible link damper support chain. 8
2. Diffuser casing.
3. Insulated, hinged damper blade. 3"
4. Clip for ceiling grid member – 4 sides. (76)
5. Existing grid member.
6. Supplementary ceiling grid member by S 7
W 6
others. UL Listed.
7. #8 screws for grid member attachment. W + 1/4" (6)
8. Thermal shroud.
9. Adjustable pattern controller. 2 SLOT 12 FIRE RATED PRODUCTS
10. UL Listed fusible link (replaceable). W
11. Hanger wire at casing mid-point.
12. Intermediate grid bars (shown solid) S 12
W + 1/4" (6)
supplied and installed by factory.
3 SLOT
W

S (Slot Width) S 12
1/2" (13) 3/4" (19) 1" (25) 1 1/2" (38) W + 1/4" (6)
1 slot 1 1/2" (38) 1 3/4" (44) 2" (51) 2 1/2" (64)
W 2 slot 3" (76) 3 1/2" (89) 4" (102) 5" (127) 4 SLOT
(Width) 3 slot 4 1/2" (114) 5 1/4" (133) 6" (152) 7 1/2" (191) W
4 slot 6" (152) 7" (178) 8" (203) N/A

Nominal Inlet Size

6 (152) 8 (203) 10 (254) 12 (305)

Round Round Oval Oval S
W + 1/4" (6)
A 5 7/8 (149) 7 7/8 (200) 11 (279) 14 1/8 (378)

B– – 7 7/8 (200) 7 7/8 (200)

Previous View Home Contents Dimensions Specification Performance F41

FIRE RATED PLENUM SLOT DIFFUSERS

FIRE RATED PLENUM SLOT CATEGORY
DIFFUSER BZGU

• ADJUSTABLE 'ICE TONG'
PATTERN CONTROLLER

• 3 HOUR RATING
• LAY-IN

Models: Model 5575T
5550T 1/2" (13) Slot Width
5575T 3/4" (19) Slot Width
5510T 1" (25) Slot Width

F

FIRE RATED PRODUCTS The Nailor Series 5500T is a UL Classified fire rated air terminal unit listed in Underwriters Laboratories Fire Resistance
Directory. This design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate
an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies, see the
current UL Fire Resistance Directory.

The 5500T Series features the same 'ice tong' pattern controller as used in the 5000 Series Linear Slot Diffuser, providing
total flexibility in all applications. The direction of airflow is adjustable through a full 180° from the face of the diffuser and
pattern controllers may also be adjusted for volume control.

In the horizontal discharge setting, the coanda effect is maximized and a tight blanket of air is projected across the ceiling.
The horizontal pattern is maintained throughout a wide range of cataloged air volumes from maximum to minimum flow and
the 5500T Series therefore provides excellent performance in variable air volume applications.

FEATURES: face to align flush with the ceiling grid. Options:

• Full 180° pattern controller • Pattern controller is split mid-way • T1 Supplementary ceiling grid (T-
adjustment means there are no 'lefts on units 48" (1200) and longer, bar) member on inlet side (UL Listed).
or rights'. Pattern controllers also permitting a 2-way opposite blow
permit volume control. pattern from a single slot. • EX External foil back insulation.

• Available in 20", 24", 36", 48" and • Return models are available. See • ID Inlet damper.
60" (500, 600, 900, 1200 and 1500) page F46.
nominal lengths to suit both imperial Material: Corrosion-resistant steel
and metric ceiling systems. • Units must be installed in accordance plenum and pattern controllers.
with the installation instructions for UL Aluminum center tees.
• Choice of three slot widths. Classification.
Finish: Black on pattern controllers
• Choice of 1, 2, 3 or 4 parallel slots. • 212°F (100°C) fusible link is standard and exposed surfaces. AW Appliance
(165°F (74°C) is optional). White on center tees.
• Factory installed center tees on
multi-slot models are standard. They Performance Data: See non-fire rated
are dropped slightly below the diffuser Model Series 5800 on page C22.

Air Patterns

Single Slot Multi-Slot

Horizontal Horizontal Vertical Left Two-way Vertical and
Left Right Dampered Opposite Horizontal

F42 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PLENUM SLOT DIFFUSERS

Dimensional Data UNDERWRITER'S LABORATORIES, INC.®
CLASSIFIED AIR TERMINAL UNITS
Model Series 5500T LISTED FOR UP TO 3 HOURS
CATEGORY BZGU

CM - 3/8" (10) B 1 W + 1" (25) 11
4 2
3 3 1 1/2"
10 12 1/2" SLOT (13)
(318)
A 9"
4 (229)
5
10
9 F
8

3"
(76)

CM = CEILING MODULE S 7
W 6
Items:
W + 1/4" (6)
1. Fusible link damper support chain.
2. Diffuser casing. 2 SLOT 12 FIRE RATED PRODUCTS
3. Insulated, hinged damper blade. W
4. Clip for ceiling grid member – 4 sides.
5. Existing grid member. S 12
6. Supplementary ceiling grid member by W + 1/4" (6)

others. UL Listed. 3 SLOT
7. #8 screws for grid member attachment. W
8. Thermal shroud.
9. Adjustable pattern controller.
10. UL Listed fusible link (replaceable).
11. Hanger wire at casing mid-point.
12. Intermediate grid bars (shown solid)

supplied and installed by factory.

S (Slot Width) S
W + 1/4" (6)
1/2" (13) 3/4" (19) 1" (25)
2" (51) 4 SLOT
1 slot 1 1/2" (38) 1 3/4" (44) 4" (102) W
W 2 slot 6" (152)
(Width) 3 slot 3" (76) 3 1/2" (89) 8" (203)

4 slot 4 1/2" (114) 5 1/4" (133) 12

6" (152) 7" (178)

Nominal Inlet Size

6 (152) 8 (203) 10 (254) 12 (305)

Round Round Oval Oval S
W + 1/4" (6)
A 5 7/8 (149) 7 7/8 (200) 11 (279) 14 1/8 (378)

B– – 7 7/8 (200) 7 7/8 (200)

Previous View Home Contents Dimensions Specification Performance F43

FIRE RATED PLENUM SLOT DIFFUSERS

FIRE RATED PLENUM SLOT CATEGORY
SUPPLY DIFFUSER BZGU

• CURVED BLADE 'FLIP-FLOP'
PATTERN CONTROLLER

• 3 HOUR RATING
• LAY-IN

Model:
5575 3/4" (19) Slot Width

F
Model 5575

FIRE RATED PRODUCTS The Nailor Series 5500 is a UL Classified fire rated air terminal unit listed in Underwriters Laboratories Fire Resistance
Directory. This design meets UL time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate
an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies, see the
current UL Fire Resistance Directory.

These models feature a roll-formed curved blade pattern controller in each slot. Aerodynamically designed to produce a
fixed horizontal discharge pattern, the controller is pivoted at either end and may be simply rotated with fingers from the
diffuser face for either a left or right discharge direction.

In the horizontal discharge setting, the coanda effect is maximized and a tight blanket of air is projected across the ceiling.
The horizontal pattern is maintained throughout a wide range of cataloged air volumes from maximum to minimum flow and
the 5500 Series therefore provides excellent performance in variable air volume applications.

FEATURES: • Factory installed center tees on Options:
multi-slot models are standard.
• Simple 'Flip-Flop' pattern controller • T1 Supplementary ceiling grid (T-Bar)
adjustment, from face of diffuser for • Blades are shipped locked. They member on inlet side (UL Listed).
left or right blow pattern. may be set for left or right airflow
pattern after installation. • EX External foil back insulation.
• Available in 20", 24", 36", 48" and
60" (500, 600, 900, 1200 and 1500) • Units must be installed in accordance • ID Inlet damper.
nominal lengths to suit both imperial with the installation instructions for UL
and metric ceiling systems. Classification. Material: Corrosion-resistant steel.

• Choice of 1, 2, 3 or 4 parallel slots. • 212°F (100°C) fusible link is Finish: Black on pattern controllers
standard (165°F (74°C) is optional). and exposed surfaces. AW Appliance
• Return models are same design, White on center tees.
but omit pattern controllers. See page
F46. Performance Data: See non-fire rated
Model 5675 on page C35.

Air Patterns

Single Slot Multi-Slot

Horizontal Horizontal One-way Two-way
Left Right Horizontal Opposite

F44 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PLENUM SLOT DIFFUSERS

Dimensional Data UNDERWRITER'S LABORATORIES, INC.®
CLASSIFIED AIR TERMINAL UNITS
Model Series 5500 LISTED FOR UP TO 3 HOURS
CATEGORY BZGU

CM - 3/8" (10) B 1 W + 1" (25) 11
4 2
3 3 1 1/2"
10 12 1/2" SLOT (13)
(318)
A 9"
4 (229)
5 F
10
9
8

3"
(76)

CM = CEILING MODULE S 7
W 6

W + 1/4" (6)

Items: 2 SLOT 12 FIRE RATED PRODUCTS
W
1. Fusible link damper support chain.
2. Diffuser casing. S 12
3. Insulated, hinged damper blade. W + 1/4" (6)
4. Clip for ceiling grid member – 4 sides.
5. Existing grid member. 3 SLOT
6. Supplementary ceiling grid member by W

others. UL Listed. Factory installed ceiling S
grid members are available. AW White only. W + 1/4" (6)
7. #8 screws for grid member attachment.
8. Thermal shroud. 4 SLOT
9. Adjustable pattern controller. The position W
can be as shown or rotated 180° to
opposite position.
10. UL Listed fusible link (replaceable).
11. Hanger wire at casing mid-point.
12. Intermediate grid bars supplied and installed
by factory.

W 1 slot S = 3/4" (19) 12
Width 2 slot 1 11/16" (43)
3 slot 3 3/8" (86)
4 slot 5 1/16" (129)
6 3/4" (171)

Nominal Inlet Size

6 (152) 8 (203) 10 (254) 12 (305)

Round Round Oval Oval S
W + 1/4" (6)
A 5 7/8 (149) 7 7/8 (200) 11 (279) 14 1/8 (378)

B– – 7 7/8 (200) 7 7/8 (200)

Previous View Home Contents Dimensions Specification Performance F45

FIRE RATED PLENUM SLOT DIFFUSERS

FIRE RATED PLENUM SLOT
RETURN DIFFUSER

• 3 HOUR RATING CATEGORY
• LAY-IN BZGU

Models: Model 5575R
5550R 1/2" (13) Slot Width
5575R 3/4" (19) Slot Width
5510R 1" (25) Slot Width
5515R 1 1/2" (38) Slot Width

F

FIRE RATED PRODUCTS The Nailor Series 5500R Return Diffusers are a UL Classified fire rated air terminal unit listed in Underwriters
Laboratories Fire Resistance Directory which compliments the Model Series 5500 supply models. This design meets UL
time-vs-temperature test criteria and NFPA 90A requirements.

All diffusers are classified for use in UL restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate
an exposed grid suspended ceiling (lay-in T-Bar) with up to a 3 hour rating. For details of fire rated assemblies, see the
current UL Fire Resistance Directory.

Available in the same module sizes as supply models. Pattern controllers are omitted.

Supplied with a rectangular opening as standard for ductless return applications.

Round/oval connections are an available option.

FEATURES: Options: Material: Corrosion-resistant steel
• T1 Supplementary ceiling grid (T-Bar) plenum. Aluminum center tees.
• Available in 20", 24", 36", 48" and member on inlet side (UL Listed).
60" (500, 600, 900, 1200 and 1500) • EX External foil back insulation. Finish: Black on pattern controllers
nominal lengths to suit both imperial • ID Inlet damper. and exposed surfaces. AW Appliance
and metric ceiling systems. White on center tees.

• Choice of four slot widths. Performance Data: See non-fire rated
Model Series 5700R on page C42.
• Choice of 1, 2, 3 or 4 parallel slots.

• Factory installed center tees on
multi-slot models are standard. They
are dropped slightly below the diffuser
face to align flush with the ceiling grid.

• Units must be installed in accordance
with the installation instructions for UL
Classification.

• 212°F (100°C) fusible link is
standard (165°F (74°C) is optional).

F46 Previous View Home Contents Dimensions Specification Performance

FIRE RATED PLENUM SLOT DIFFUSERS

Dimensional Data UNDERWRITER'S LABORATORIES, INC.®
CLASSIFIED AIR TERMINAL UNITS
Model Series 5500R • Fire Rated Plenum Slot Return LISTED FOR UP TO 3 HOURS
CATEGORY BZGU

CM - 3/8" (10) W + 1" (25) 10
18" (457) FOR 24" (610) MODULE. 1
36" (914) FOR 48" (1219) MODULE. 1/2"
(13)

3" 2
(76) 3

9 3 9"
A
B (229)
12 1/2" 9
(318)

41 8

4 SLOT

5 3" F
(76)

CM = CEILING MODULE S 7
W 6

W + 1/4" (6)

Items: 2 SLOT 11 FIRE RATED PRODUCTS
W
1. Fusible link damper support chain.
2. Diffuser casing. S 11
3. Insulated, hinged damper blade. W + 1/4" (6)
4. Clip for ceiling grid member – 4 sides.
5. Existing grid member. 3 SLOT
6. Supplementary ceiling grid member by W

others. UL Listed.
7. #8 screws for grid member attachment.
8. Thermal shroud.
9. UL Listed fusible link (replaceable).
10. Hanger wire at casing mid-point.
11. Intermediate grid bars (shown solid)

supplied and installed by factory.

S (Slot Width) S
W + 1/4" (6)
1/2" (13) 3/4" (19) 1" (25) 1 1/2" (38) 11
1 slot 1 1/2" (38) 1 3/4" (44) 2" (51) 2 1/2" (64) 4 SLOT
W 2 slot 3" (76) 3 1/2" (89) 4" (102) 5" (127) W
(Width) 3 slot 4 1/2" (114) 5 1/4" (133) 6" (152) 7 1/2" (191)
4 slot 6" (152) 7" (178) 8" (203)
N/A

Optional Round/Oval Connection.

Nominal Inlet Size

6 (152) 8 (203) 10 (254) 12 (305)

Round Round Oval Oval S
W + 1/4" (6)
A 5 7/8 (149) 7 7/8 (200) 11 (279) 14 1/8 (378)

B– – 7 7/8 (200) 7 7/8 (200)

Previous View Home Contents Dimensions Specification Performance F47

FIRE RATED PRODUCTS
Notes:

F

FIRE RATED PRODUCTS

www.nailor.com

F48 Previous View Home Contents Dimensions Specification Performance