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The air movement troughs the hole wod be negligable. Now if you cut two holes, one high and one low, you could have a fair amount of movement. The low hole would have air moving from cold to hot...

no, that is one of the most common misunderstandings. If there is no refrigerant flow, the low side will not pick up any heat. if no heat is picked up, the high side will not get hot (as you...

I'm wondering if someone broke the contactor and then put a jumper across the broken contacts to get it running. That could explain why one set of points is missing. If you were just trying to...

The compression ratio is higher, however it is usually still within the approved operating envelope for most A/C compressors.

I've never seen a micemaker, but I worked on a scotsman roachmaker today. Complaint was water flowing, but not cold.

Found electrical compartment packed with roaches and they were jamming the...

It's a bad question. Neither an equalizer line or balance port affects whether the system equalizes. An equalizer line allows the txv to function better when used with a high pressure drop...

You do not need to change any fiber or metal gaskets. Only rubber ones

The big name stuff isn't any better. Carrier had their leaking evap coils, and before that, their faulty compressors. Trane had their defective txvs. Everything is the same garbage these days

The new coils are aluminum and do not have the corrosion issues.

I installed hundreds of the old coils and only had two leakers. one was 7 years old and one was 1. I also do not do any new...

I was not aware you could "just switch" to any of those refrigerants

That is really cool looking. The only problem I see with it is that so many condensers have one piece tops, so theres nothing to set it on since you have to remove the entire top. do you also have...

When changing a comp on a residential unit that is to tall to easily lift it out, simply remove the condenser coil.


To get compressors on a roof without spending money on a crane, call a sign...

Are they concerned about the pump or the fact that it discharges to the roof. Could you just run the pump hose to your existing mop sink or floor drain? Or do they require a gravity drain?

Performance wise they work fine, but the construction is cheap. The metal is so thin that after a year of kitchen use they look 10 years old with all the dents. Also many of the edges are VERY...

Yes, it's called a capillary tube and their all the rage now among OEMs of self contained equipment because they're dirt cheap.

I will admit I've never seen a fixed metering device on a split...

kitchen employees will find a way to break this stuff in ways you never thought was possible. I once got 3 calls in the same week from one restaraunt. The complaint: Doors on the floor. ...

I had a Carrier air handler that would eat belts like it was its job. it had to B32 belts and the pulleys were almost touching so the belts had no cooling off time between the pulleys and were...

I agree, ditch the GFCI.

When the porn makes you feel like inserting an eel..... That's a moray.

I don't know what its plugged with, but its a black tar like substance, not the tan colored stuff I usually see in True cap tubes.


This is a samsung resi fridge that was not cooling. It belongs...

Will replacing the POE oil in a system with a partially clogged cap tube result in the new oil cleaning the sludge out of the cap tube?

The refrigerator uses an evaporator temperature below freezing so a small amount of moisture will cause problems (cap tube restriction) so the filter has water absorbing material inside. ( I don't...

Liquid line solinoid installed right before the metering device and connected to Y and C

I've installed a lot of these systems and have never has a txv failure of any sort.

These coils have factory installed txvs. I wonder if installers are overheating the bulb when brazing the...

They must have left their oil tank unattended in the 'hood

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