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I think some "receiver" capacity is in the design of the condenser. Or the condenser can hold the entire refrigerant charge. If memory serves I've serviced a few freezers with TXV's and no receiver...

I did appliance repair a long, long time ago and if memory serves you could be looking at an oil cooler. Seems the compressor oil cooling was a small circuit routed through the static condenser, but...

You may encounter high head pressure issues as R-134A needs a little more condenser surface area than R-12. If it ran with low condensing pressures with R-12 it may work OK.

I think I will start marketing a heat pump sleeve window unit with a big Amish built wood frame. At least I could advertise the energy savings and sleep a night!

You stated that your super heat was low or non existent, that being the case you better get that up or you'll slug and destroy the compressor. I had similar problems on a case like yours so I...

Yes, I had success fixing it. I used a small air-acetylene tip and #15 braze. I was just nervous because once I got a copper bend too hot with my oxy-acetylene and it melted the pipe. I was amazed...

Got a 13KBTU bohn refrigeration coil with a leak on a copper loop near the TXV. Coil looks to be in reasonably good condition. I am thinking about trying to repair it, but am a little nervous with...

All good points--thanks.

Can I substitute a liquid line filter drier for a suction line drier or is there some critical difference. I have a bunch of leftover large liquid line driers and i thought I could use them up as...

I've actually taken the air cooled condenser and remoted it to a more desireable space which worked well. If you chose to do this you'd have to put a fan on the compressor to keep it cool.

I think that's actually a flexible refrigerant pipe. Kinda remember seeing one like that out in the field quite a few years ago. You'd never even be able to get a positive pressure on a real piece of...

Well you'll certainly need a new cap tube. Why on earth would they change it from the original 134A to 404A. Better double-check with tech support people.

Hugh?

Works fine. You'll like the extra starting torque.

I may be wrong, but I'm guessing the CO2 would be made from the CO2 already in existence in our air and not CO2 as a result of chemical reaction like the combustion process of an automobile so there...

I always use dial-A-Charge for those critically charged units. Seems to work really well for accuracy.
I hear reference to subcooling for charge on small units, but what kind of subcooling numbers...

One of the big problems is the thin copper they are using in modern coils. I have seen old evaporators in terrible environments 20 and 30 years old with no leaks. They have really thick copper and if...

I regret that this is not really democracy or representative democracy anymore (whatever you like to call it) what we have is a system of legalized bribery. Corporations can now give unlimited funds...

Heat reclaim is used to give people comfort so run it off a normal thermostat and kick it in when the space needs heat.
Water valve? I assume you mean to control condenser head pressure? You can set...

I just reread your post and realized you were wondering why contractors don't use 401B, well that's probably due to price and as others have stated and there aren't that many R-12 low temperature...

R401B has much better capacity at those lower evaporator temperatures and allows for healthier compressor operation. Low temperaure compressors really hate high superheat (which can occur from a...

I've seen some cases where rotary compressors are factory equipped with a potential relay and start capacitor. They have more umph on start up, but I don't know if they could be installed with a...

I have converted air cooled refrigeration equipment to water cooled with no problems, but I am wondering if I could run a water cooled condenser off the compressor in series with an air cooled...

The evaporator on that unit is designed to run at around zero degrees F., since you are running it continually at a higher temperature the compressor is working very hard and will likely fail.
...

Hi all.

(I posted this in refrigeration and ice making as well)

I got a call from a friend who wanted some phone technical support from me to troubleshoot his GE PDS22MISABB refrigerator.

I...