Installing a gpd Scroll PistoN
Replacement Compressor
Before replacing a compressor always find out why the old compressor failed.
There are two main reasons why the A/C system typically fails:
1. A refrigerant leak and/or low air flow usually due to a malfunctioning cooling fan.
2. System is not charged correctly by manufacturer’s specifications. If the A/C system is low on refrigerant, find the leak and replace leaking parts. Check the cooling fans. Make sure they are working correctly and that there is adequate airflow across the condenser.
Before replacing the compressor, make sure you have all the tools and products to “Do the Job Right the First Time”:
**READ INSERT INCLUDED IN COMPRESSOR BOX BEFORE INSTALLATION**
The following statements will vary by compressor. Please refer to the insert included with compressor for specific oil levels and other instructions.
For general instructions and recommendations on replacing a compressor, please refer to gpd Tech Tip #10 “Compressor Installation Insert”. Learn more about gpd’s Piston Replacement Compressors in gpd Tech Tip #36 “Piston Replacement Compressors”
There are two main reasons why the A/C system typically fails:
1. A refrigerant leak and/or low air flow usually due to a malfunctioning cooling fan.
2. System is not charged correctly by manufacturer’s specifications. If the A/C system is low on refrigerant, find the leak and replace leaking parts. Check the cooling fans. Make sure they are working correctly and that there is adequate airflow across the condenser.
Before replacing the compressor, make sure you have all the tools and products to “Do the Job Right the First Time”:
- Compressor
- Condenser (It is necessary to replace parallel flow condensers because they cannot be flushed. Failure to replace the condenser at time of replacing compressor will lead to repeat compressor failure due.
- Expansion Valve
- Rapid Seal O-Ring Kit
**READ INSERT INCLUDED IN COMPRESSOR BOX BEFORE INSTALLATION**
The following statements will vary by compressor. Please refer to the insert included with compressor for specific oil levels and other instructions.
- gpd piston replacement compressors are pre-filled with Pag 46 compressor refrigerant oil. Amount of oil required will vary from the OE Scroll design
- Do not flush the AC system.
- Replace the condenser and expansion valve. 90% of contaminants will be removed from the system by replacing the condenser. (Remember, parallel flow condensers CANNOT be flushed). Remove the drier bag in the old condenser to note the amount of contaminants that were affecting the system.
- Always refer to OE specifications for refrigerant charge.
- After installing a gpd Piston Replacement Compressor, place enclosed sticker under the hood so future technicians are aware compressor has been changed and the system modified.
For general instructions and recommendations on replacing a compressor, please refer to gpd Tech Tip #10 “Compressor Installation Insert”. Learn more about gpd’s Piston Replacement Compressors in gpd Tech Tip #36 “Piston Replacement Compressors”
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