Keeping cool - Truckers' Trucking Forum

rookietrucker · **^ Top** #1 07.16.2009

Keeping Cool

Quote:

How to maintain your a/c system to avoid poor cooling

Cab air conditioners use r134a, a refrigerant that’s always under pressure. Even at 32 degrees f, the refrigerant is already under more than 30 psi, making leakage a constant threat. If refrigerant leaks out, the liquid refrigerant level in the evaporator will drop, and the cooling capacity of the system will drop drastically. Low refrigerant does more than reduce performance — it soon leads to damage.

The refrigerant isn’t the only important fluid inside the system. There also is a synthetic oil that lubricates the compressor’s moving parts even at low temperatures. Both fluids absorb water from the humidity in the air outside unless the system is tight.

More here>> keeping cool

black_dog106 · **^ Top** #2 07.16.2009

good read rookietrucker

05chopper · **^ Top** #3 07.16.2009

AH! Maybe rookie can tell me if one can add freeze 12 freon to my unit that has r-12 in it?

5mouths2feed · **^ Top** #4 07.16.2009

do a search in this thread [LINK POSTED BY MEMBER] Only Members Can View This Truck Forum Link.

for freeze 12 or look for posts by barcode He put some very good AC info in that thread.

05chopper · **^ Top** #5 07.18.2009

Quote:

Originally Posted by 5mouths2feed

do a search in this thread [LINK POSTED BY MEMBER] Only Members Can View This Truck Forum Link.

for freeze 12 or look for posts by barcode He put some very good AC info in that thread.

I did the search for this freeze 12 question if your going to post about the facts of a/c then just answer the question would suit me just fine!

FunkRider · **^ Top** #6 07.25.2009

Insulating the cold side of the AC lines keeps them...well...cold. Run the engine and the AC for a bit then open the hood and find the cold line (which will be cold like a beer out of the fridge and usually will also have condensation on it like that can of beer) and wrap it in that $.87 foam from home depot for your hot water pipes. Then get a roll of that aluminum reflective tape and wrap the insulation with that. Be creative and do your best to shield the aluminum line from heat.

The colder the system stays before it reaches the Evaporator the less it has to cycle which saves fuel and wear and tear on the AC system.

A word of caution though if you are one of those people who likes to sit in a frosty truck with AC cranked full blast for hours on end this modification can actually ice up the Evaporator in the dash.

danc694u · **^ Top** #7 07.25.2009

Quote:

Originally Posted by FunkRider

...snipped....
A word of caution though if you are one of those people who likes to sit in a frosty truck with AC cranked full blast for hours on end this modification can actually ice up the Evaporator in the dash.

My A/C has only 2 settings. Low and Ice Cream

bullhaulerswife · **^ Top** #8 07.28.2009

Quote:

Originally Posted by danc694u

My A/C has only 2 settings. Low and Ice Cream

So does ours. LOL

5mouths2feed · **^ Top** #9 07.28.2009

Quote:

Originally Posted by 05chopper

I did the search for this freeze 12 question if your going to post about the facts of a/c then just answer the question would suit me just fine!

WOW! Relax! I gave you a point of reference in which if you took the time to read would have found your answer. I did not post any statements about the freeze 12 specifically since I am not thouroghly familiar with it.

Kansas · **^ Top** #10 07.30.2009

Quote:

Originally Posted by 5mouths2feed

WOW! Relax! I gave you a point of reference in which if you took the time to read would have found your answer. I did not post any statements about the freeze 12 specifically since I am not thouroghly familiar with it.

Would you strap, tarp, and you might as well just DRIVE it there for me too buddy. Ill just wait for my check to come in the mail lol

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