| Author |
Message |
james dean boggs (Jd_boggs)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, June 26, 2005 - 3:17 am: | |
I have an 1981 Grumman/Flex.
How can determine if it uses R12 or R22? I have looked at the compressor but there are no stickers that indicate which refrigerant it uses.
Thanks. |
James Maxwell (Jmaxwell)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, June 26, 2005 - 7:21 am: | |
Hard to say. They were originally manufactured using either, depending on who bought it and what they ordered. Most, but not all, were designed for 22. Do you know which compressor u have? If u have the original twin A6's, 22. If u have a single Thermal King retrofit, also 22. If u have a 40' model, probby 22. Look up top in the condenser section and service valve area. Most built for warm summer temp areas came with 22. The expansion valve going into the evaporator will be a good indicator and the receiver up top should also have a tag or plaque indicating which refrigerant and the charge. |
Sammy B
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, June 26, 2005 - 8:28 pm: | |
James, I checked my Grumman 870 maintenance manual and it says if you have the two A6 compressors it requires R-22. This info is in section 9 of the maintenance manual. Best of luck with your repair. |
Ed/Jefferson bus
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 27, 2005 - 11:28 am: | |
Check your expansion valve for the lable color,
Yellow is R12
Blue is R134a
Green is R22
Orange is R-500 |