M-4305/0511 Silicone Rubber Drum Heaters - omega.com

SHDH, SSDH series SEPDH series

M-4305/0511 SEPDH, SHDH, SSDH SERIES

PN: 11663-01 Rev A Silicone Rubber Drum Heaters

TABLE OF CONTENTS CONNECTING HEATER TO AC POWER

Introduction................................................................. 2 SEPDH series
Safety Alert Symbol.................................................... 2 2. Connect the hazardous location approved plug to power source only after all
Important Safety Instructions….................................. 3 steps listed above are complete.
Prior to Installation...................................................... 4
Installation of Heater................................................... 4 SHDH and SSDH without controller series
Mounting of Temperature Sensor................................ 5 2. Refer to external temperature controller instructions for power installation
Adjustment of Temperature Set-Point......................... 5 instructions.
Connecting Heater to AC Power................................. 6
Troubleshooting Guide………………...…................... 7 TROUBLESHOOTING GUIDE
Warranty...................................................................... BACK
Please read this guide prior to contacting OMEGA. This guide is designed to
INTRODUCTION answer the most commonly asked questions. If you are unable to identify the
problem or need additional assistance, please contact us at 1-800-USA-HEAT.
Thank you for purchasing a OMEGALUX® Silicone Rubber Drum Heater. Your
heater is designed to provide a long and efficient service life with function, reli- PROBLEM SOLUTION(S)
ability, and safety in mind. For successful operation of these heaters, read and
understand these instructions prior to use. Does not heat Verify heater is connected to proper voltage. The
identification label located on the power cord displays
SAFETY ALERT SYMBOL the heater’s voltage requirement.

Check to see if there is a resistance reading (not an
open circuit) in heater using an ohm meter.

Circuit breaker is tripping Validate that the circuit breaker is capable of handling
the amp requirement of heater. The identification
Immediate hazards which WILL result in severe label located on the power cord displays the heater’s
personal injury or death amperage requirement.

Examine heater and cord for any damage.

The symbol above is used to call your attention Does not fit Confirm that the heater provided was designed to fit
to instructions concerning your personal safety. around your specified drum.
It points out important safety precautions. It
means “ATTENTION! Become Alert! Your If the heater was designed for the specified drum,
Personal Safety is involved!” Read the please call 1-800-USA-HEAT for further assistance.
message that follows and be alert to the
possibility of personal injury or death. Hazards or unsafe practices which COULD result in Something has lightly spilled on exterior Apply any general household cleaner, that does not
severe personal injury or death

or interior contain any silicone rubber dissolving type

ingredients, with a clean cloth fabric.

Hazards or unsafe practices which COULD result in © Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied, 7
minor personal injury or property damage. reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC
SAVE THESE INSTRUCTIONS!

Additional copies of this manual are available upon request.

2 © Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC

ADJUSTMENT OF TEMPERATURE SET-POINT IMPORTANT SAFETY INSTRUCTIONS

SEPDH series Agency Approvals
1. Remove the two screws securing the metal plate opposite the temperature
sensor. SHDH and SSDH series

2. Remove the metal plate to expose the low and high limit set-point controls. A person who has not read and 73/23/EC (Low Voltage Directive)
understood all installation instructions
3. Adjust the high and low temperature set-points to an appropriate level for the is not qualified to install this product. SEPDH series
environment. The low temperature set-point is the process control. The high limit
set point is connected to the high temperature limit indicator light. FM Hazardous Locations
Class I, Division 2, Groups A*, B,
NOTE: These heaters have a built-in, high limit thermostat that will prevent it from APPROVED C, & D
overheating. Class II, Division 2, Groups F & G
T-3 rated heaters: 292°F [145°C] high limit thermostat  Do not immerse heater in liquid.
T-4A rated heaters: 158°F [70°C] high limit thermostat  Keep volatile or combustible material away from * without included controller only

Do not adjust the low set-point higher than the high limit heater when in use. Approvals valid only when installed in
thermostat.  Use heater only in approved locations. accordance with all applicable
 Keep sharp metal objects away from heater. instructions, codes, and regulations.
Do not adjust the low set-point higher than the high temperature  All SEPDH heaters have T ratings described
set-point connected to the indicator light.  Never handle the heater while it is
in Article 501 of the NEC code. The heaters in operation; always disconnect the
4. Replace the metal plate and secure with two screws. should not be used in an area with a lower T heater from the power source and
rating than the heater. The T rating is stated in allow to cool prior to handling.
CONNECTING HEATER TO AC POWER marking on the heater.
 Inspect heater before use.
1. The drum heater is designed to work at a specific voltage. Refer to the lead Failure to observe these warnings may result in  Never operate heater without a
wire label or stamp located on the heater for rated voltage and wattage. electric shock, risk of fire, and personal injury.
temperature control device.
Failure to operate the drum heater at its rated voltage could End User Must Comply to the Following:  Do not wrap the heater over itself
cause damage to the heater, surface being heated, or contents  If spillage of foreign matter onto
of drum.  Only qualified personnel are allowed to connect
electrical wiring. heater occurs, disconnect from
All electrical connections must be made by qualified personnel power source and clean after
and in accordance with all local codes and regulations.  Disconnect all supply power at the source before heater is allowed to cool.
making any power connections.  Never operate a heater without an
Properly sized circuit breakers must be used. appropriate heat sink (device being
 All electrical wiring must follow local electrical heated is considered a heat sink).
The end-user is responsible for providing suitable electrical codes and highly recommend following NEC  Do not operate heater above rated
protection device. It is highly recommended that a ground fault Article 427. temperature value.
circuit breaker be used.  Fasten heater to device using
 Final installation / wiring is to be inspected by the approved methods only.
SHDH-C and SSDH-C series authority who has jurisdication in the area that  Do not repair damaged or faulty
2. For 120VAC model, plug standard 3-prong plug to appropriate electrical power the heater is installed. heaters.
supply. For 240VAC model, terminate power cord to appropriate electrical power  Do not crush or apply severe
supply. The power cable consists of three color-coded conductors, black, white,  The end-user is responsible for providing a physical stress on heater or cord
and green. The black wire should be connected to Line 1. The white wire should suitable disconnecting device. assembly.
be connected to Line 2. The green wire should be connected to earth ground.  Disconnect heater when not in use.
The power connections must be adequately rated to electrially support the  The end-user is responsible for providing  Use specified sized heater with
voltage and amperage of the heater. The identification label located on the power suitable electrical protection device. It is highly samed sized drum. Do not use for
cord displays voltage and amperage requirements. Follow all local electrical recommended that a ground fault circuit breaker other applications.
codes for proper electrical connections. is used.  SEPDH series: Never allow the full
weight of the thermal bulb controller
6 © Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied,  SEPDH series: A NRTL (National Recognized to hang from the heater.
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the Testing Laboratory) listed temperature controller  SEPDH series: the metal enclosure
prior written consent of OMEGA ENGINEERING, INC must be used to control the surface temperature must not support more than 10lbs
of the blankets. The controller must be approved (4.5kg).
for the area where it is located.
Failure to observe these warnings may
 SEPDH series: Heaters provide surface heating, result in personal injury or damage to the
consult proper authorities for information for heater.
safe heating of materials/ contents of any vessel
heated by SEPDH heaters.

Failure to observe these warnings may result in
personal injury or damage to the heater.

© Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied, 3
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC

PRIOR TO INSTALLATION INSTALLATION OF HEATER

Read and understand this entire manual before operating this electric heater. FIGURE 1

1. Check for suspected damage to the heater like rips, punctures, etc. MOUNTING OF TEMPERATURE SENSOR (SEPDH series)

2. Verify surface to be heated is free from all sharp edges, weld splatter, rust, oil, 1. Mount the temperature sensor as close as possible to the heater, on the
etc. outside of the drum. It is best to mount the sensor vertically. Avoid bending or
coiling the capillary tube tighter than a 1/2” (13mm) radius.
3. Check that the desired placement of the heater will not cause damage to the NOTE: The sensing point is the entire length of the sheath (10.5” / 267mm). It is
heater through impact shock, vibration, ambient temperature, or by neighboring important that as much of the bulb’s surface is in contact with the drum.
moving parts.
Do not immerse the sensing bulb into the contents of the drum.
4. Confirm voltage / wattage rating of heater is appropriate for power supply 2. Once an appropriate location has been determined, secure the sensor to the
device or temperature controller. The heater is designed to work at a specific drum using aluminum or fiberglass adhesive tape.
voltage to heat properly.
ADJUSTMENT OF TEMPERATURE SET-POINT
5. Confirm heater maximum exposure temperature rating is suitable for
environment. The temperature of the internal heating element may run up to Do not operate the heater without a temperature controlling
25% higher than the external surface of the heater. Use extreme caution for device (if not installed). Failure to use such a device may result
applications that require a process temperature near the maximum exposure in in-process damage or heater failure.
temperature ratings of the drum heater.
If the operating temperature is within 50ºF (10ºC) of the
- SHDH and SSDH exposure temperature range: -60ºF to 450ºF maximum exposure temperature of the heater or if the
(-51ºC to 232ºC) temperature sensor/ controller or thermostat is controlling a
process remote to the heater, an intergral high-limit temperature
- SEPDH exposure temperature range: -60ºF to 400ºF (-51ºC to 204ºC) cut-out sensor/controller or thermostat is required to protect the
T3: 292ºF (145ºC) high limit thermostat heater.
T4A: 158ºF (70ºC) high limit thermostat
SHDH-C and SSDH-C series
5. Do NOT connect to AC power until all installation steps are completed. Adjust dial to desired setting. Drum heaters can be adjusted 50-425ºF
(10-218ºC).
INSTALLATION OF HEATER
© Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied, 5
1. Verify drum surface is clean, free of weld splatter, and not damaged in anyway. reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
2. Select a suitable location on the drum, below the lowest expected content prior written consent of OMEGA ENGINEERING, INC
level. For almost all applications, the heater should be mounted on the bottom
1/3 of the drum.
3. Wrap the heater around the drum. Extend the spring attached to the metal tab;
latch the spring loop onto the hook on the opposite side as shown in Figure 1.
4. Verify there are no air gaps between the heater and the drum.

Do not use metal tab as a handhold when extending the spring.
The heater MUST make continuous contact with the drum.
Do not overlap the drum heater onto itself or another heater.

4 © Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC