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When using a system dependent recovery process on operating compressors technicians should?

When using a system-dependent recovery process with an operating compressor, run the compressor and recover from the high side of the system. Normally, one access fitting on the high side will be enough to reach the required recovery rate as the compressor should be able to push the refrigerant to the high side.

When using a system dependent recovery system on an appliance that has a non operating compressor The technician should?

Type 1

Question Answer
Applying heat,with a heat gun,to the compressor; Can help vaporize any trapped liquid refrigerant during recovery.
When using a system -dependent recovery system on an appliance that has a non operating compressor,the technician should; Place access fitting in both the low and high side of the system

How much refrigerant can a 50 lb recovery tank hold?

It is recommended to fill to 2 lbs less than the 80%. For example, a 30 lb cylinder can hold 22 lbs of refrigerant and a 50 lb cylinder can hold 38 lbs of refrigerant.

Can I use a vacuum pump to recover refrigerant?

There’s absolutely no need to use a vacuum pump to remove the refrigerant. It’s really easy to remove the refrigerant by condensing it out. If you’re a shade tree mechanic, this is what has worked for me to recover and store R134a: Get a refrigerant recovery tank with 1/4″ fittings.

How much refrigerant does a recovery tank need?

Typically, the tanks are rated for 50 & 30 pounds, so they can (legally) hold 40 & 24 pounds respectively.

Can you pull a vacuum with a recovery machine?

Just wondering if any manufacturer of recovery units can double as a vacuum pump? He11 yes, they all can. You can use the rec machine to get the air out of the system and filter-driers to take care of moisture.

What happens if you put too much oil in the AC system?

Warmer-than-normal box temperatures with capacity losses: Because of the reduced heat transfer in both the condenser and evaporator (caused by excess oil coating the inner tubing), capacity will be decreased. The compressor will run longer trying to maintain a desired box temperature.