Nindan Putri Desfi Anggraeni

FINAL TASK REPORT OF SCHOOL

YEAR 2022/2023

AIR CONDITIONER (AC) WORKING SYSTEM AT THE AJI
JAYA AC WORKSHOP KEDAWUNG,KROYA

Arranged by :

Name : Nindan Putri Desfi Anggraeni

Competence Program : Electronik Engineering

Class : XII TO 1

NIS : 5368

PROVINCE GOVERNMENT OF CENTRAL JAVA
DEPARTMEN OF EDUCATION AND CULTURE

SMK NEGERI NUSAWUNGU

SCHOOL YEAR 2022/2023

APPROVAL SHEET

Tittle : Field Work Practice Report
Location : Aji Jaya AC WORKSHOP
Time : 6 months (31 January – 15 July 2022)
This Field Work Practice report has been approved by the school supervisor
and ratified by the Head of SMK N NUSAWUNGU on :

Day :..........................
Date :..........................

Nusawungu, September 8 2022
Approved on

Head of skills competence Autotronic School Supervisor
Engineering

Kukuh Adhi Rumekso, S,Pd. Agung Prayogi, S,Pd.
NIP. 19910409 202221 006 NIP.

Acknowledge by :
Head of SMK NEGERI NUSAWUNGU

Mrs. Sri Windiarto,S.Pd. M.Pd.
NIP. 19690509 19992032008

PREFACE

Praise and gratitude the authors pray to Allah SWT for the grace of Allah and
his grace so that they can carry out Field Work Practiced and compllite the
preparation of report on the result of Field Work practices that run according
to the program that has been planned. The preparation of this report is
carried out in accordance with the work that has been planned at the
industrial site.
On this occasion, the authors would like to thank all parties who have
assistedin the implementation of Field Work Practices and assistedin the
preparation of this report to :

1. Mrs. Sri Windiarto,S.Pd.,M.Pd, as the Principal of SMK NEGERI
NUSAWUNGU

2. Mr. Kukuh Adi Rumekso,S.Pd., as the head of competence program
3. Mr. Agung Prayogi,S.Pd., as examiners
4. My parents,friends, classmates and all who help on both of

competence exam or final task report.
The authors realize that this report is far from perfect, therefore
contruction criticism and suggestions for the improvementand perfection
of this report are highly expected. Finally, this report can be useful for
readers in boarding their horizons.

Nusawungu, 8 September 2022

Nindan Putri Desfi Anggraeni

SUMMARY

AC is a system on a car that’s useful for air conditioning. the parts of AC
are : compressor, condenser, receifer dryer, expansion valve, evaporator,
blower, pilly and belt, refrigerant pipe, electronic temperatur controller,
pressure switch, applicator and switch AC.

The low-pressure gas refrigerant is sucked in by the compressor through
the suction line-cold. The gas refrigerant enters the cylinder and is then
compressed by the compressor piston. The high pressure gas refrigerant is
channeled to the condenser through the discharge line-hot. Condenser as a
result, the refrigerant turns into a liquid. The refrigerant car flows from the
condenser to the liquid receiver, where the liquid refrigerant undergoes
filtering and drying. Next, the liquid refrigerant flows into the compressor
suction pipe. A blower installed in the evaporator Will distribute cold air
throughout the interior.

The way to charge the reviger is to use a charger and before that the air
conditioner must be vacuumed. How to maintain AC by always checking the
condition of the AC. Keep the cabin or car floor clean. Car cabin cleanliness
helps clean AC air. The air filter is always clean and not easily dirty.

When washing the car, spray hard water on the AC compressor so that
the dirty stuck to the compressor can be removed because if left untreated
it can cause corrosion or poros so that the compressor part leaks faster.
Choose a Shady parking spot if you think it’s too long because if you leave in
the car, it Will get hot. If for election.

TABLE OF CONTENT

TITLE PAGE........................................................................... I

APPROVAL SHEET................................................................. II

PREFACE ............................................................................. III

SUMMARY........................................................................... IV

TABLE OF CONTENT............................................................. V

I. INTRODUCTION

A. Background............................................................. 1
B. Objectives............................................................... 1
II. PRODUCTION PROCESS
A. Times and Place...................................................... 2
B. Material and Equipment......................................... 4
C. Scheme of Work...................................................... 7
D. Motion of Job.......................................................... 16
E. Result..................................................................... 20
III. FINDING
A. Implementation ..................................................... 21
B. Benefits.................................................................. 24
C. Improvement.......................................................... 26
IV. CLOSING
A. Conclusion.............................................................. 28
B. Recommendation................................................... 28

REFERENCES....................................................................... 29

APPENDIX........................................................................... 29

REFERENCES

Bakry, Noor Ms. 2009 Car Air Conditioner Yogyakarta: Balai
Pustaka
http://www.otoqita.com/2014/03/functioncondensor-
acmobildanpromblems.html
(Accesed September 1,2018 at 14.00)
http://www.oto.co.id/infootomotif/Tips
detail.asp?ContentID=OTO230705001123
438437. (Accesed September 16,2018 Time : 10.45 WIB)