How to

10 Steps to Install a Compressor

Share Resource:

Resource Highlights

In this article you will find out about the 10 steps to follow when installing a compressor.

Air Conditioning & Thermal Compressors Maintenance Solutions How to 1 min read

1.

Preperation

Clean A/C System

Ensure the A/C system is clean – closed loop refrigerant flushing is recommended. If chemical flushing is used, all chemical flushing agents must be removed from the system.

Do not put any additives (sealants or system treatments) into the A/C system. Leak detection dyes, in proper amounts, are acceptable.
Use only mineral oil to lubricate seals in all systems (R12 and R134a).

2.	Lubricate Oil Balance System Oil balance system – use the correct type and amount of refrigerant lubricant.

3.	Service Suction Screen Service suction screen installation – prevents system debris from damaging new compressor.

4.	Check Evacuation & Charging Accurate evacuation and charging – new systems have charge weights of +/- one ounce.

5.	Check Leak Check Leak check entire air conditioning system – replacing compressor may not correct the system leak that caused previous compressor failure.

6.	Check Cycle Switch Check cycle switch performance – improper operating switch, not shut off as specified, will cause repeat failure.

7.

Fit

Fitting Compressor

Confirm OEM manufacturer air conditioning system performance – the compressor is not the only contributor to air conditioning performance.

Install a new or OEM equivalent receiver drier or accumulator dehydrator on the vehicle.
On orifice tube systems, install a new orifice tube. On expansion valve systems, clean the expansion valve inlet screen or replace the expansion valve.

8.	Install Installation Turn the compressor shaft at least 4 times, prior to installation on the vehicle – if unable to rotate by hand, a turning tool or spanner wrench must be used. Do not use a socket directly on the shaft nut or bolt.

9.	Replace Replace Components Replace non-flushable components – parallel flow condensers and hose assemblies with mufflers after a catastrophic compressor failure.

10.

Check

Check Voltage

Check voltage to coil – especially if previous compressor experienced clutch failure.

SIGN UP TO FIND MORE

Fill yp your details to hear more from our experts and get the latest updates from Delphi.

First Name*

Surname*

I have read and accept the Terms of Use and Privacy Policy

I agree to receive personalised marketing emails.

I would like to be kept up to date with promotions/marketing/features/events.

You can change your mind at any time by clicking the unsubscribe link in the footer of any newsletter email you receive from us, or by contacting us at [email protected]