Increased life on compressor....?

[bubbahotemp]

Been in the biz for 10+ years, I am installing a new R410A for my own house would putting a liquid solenoid on and letting it go into pumpdown mode when the thermostat satisfies would allow the compressor an easier time on startup thus allowing for less wear and tear on the compressor? Or would installing a crankcase regulator on the suction line be a better way?

It's a Copeland Scroll compressor, I forgot if did or didn't matter if the scroll is under equalized pressures it would startup the same. That scroll would startup the same whether equalized or not.


Thanks for your input!

[Poodle Head Mikey]

Because it sure seems to me that both would do the opposite of your claimed intention.


PHM
-------------

Been in the biz for 10+ years, I am installing a new R410A for my own house would putting a liquid solenoid on and letting it go into pumpdown mode when the thermostat satisfies would allow the compressor an easier time on startup thus allowing for less wear and tear on the compressor? Or would installing a crankcase regulator on the suction line be a better way?

It's a Copeland Scroll compressor, I forgot if did or didn't matter if the scroll is under equalized pressures it would startup the same. That scroll would startup the same whether equalized or not.


Thanks for your input!

[CNC]

I don't feel either application will prolong the life of your compressor. The suction regulator is designed to regulate in a multiple evaporator application. Making the system pump down is to keep liquid from migrating back to the compressor causing slugging. I dont feel in a residential application that would apply. A crankcase heater will protect from this migration in your application.

[beenthere]

You don't need to add any of that stuff.

Just like a comprssor in a refrigeration system. Long run cycles prolong the life of the compressor of an A/C system.
So don't oversize your A/C.

[Poodle Head Mikey]

Do not use a cooling thermostat and set the hot gas bypass valve for the space temperature you want. You will have to fidle with it at first but just set it lower to reduce the house temp or higher to increase the space temp. When you get it balanced - just leave it there forever.

[beenthere]

Just install it as per the install instructions.

[catmanacman]

if it does not have a crank case heater you can add one but the easy way to prolong the compressor is a proper install proper charge and service it annully

[Airmechanical]

Do not use a cooling thermostat and set the hot gas bypass valve for the space temperature you want. You will have to fidle with it at first but just set it lower to reduce the house temp or higher to increase the space temp. When you get it balanced - just leave it there forever.

.

[webbheat]

Why not install a AMANA 14 SEER with life time compressor warranty and not do anything but relax!

[iraqveteran]

Why not install a AMANA 14 SEER with life time compressor warranty and not do anything but relax!

Cause he don't want a glorified Goodman

[bubbahotemp]

Thanks for replies, anyway thanks for the info on crankcase heater, I know most techs hate Goodman except home builders, but I got a good deal on it, I know shame on me, but it is a 14 seer. Other brands were 2X the price. I was told that a compressor has a easier time starting on a suction pressure that is lower than the equalized pressure on startup I sometimes like to Over-Engineer it, but probably I'm wasting my time.

I'll probably just throw on a Heater and be done with it.

Thanks everyone,

[Coolmaniac]

Actually compressors start easier with balanced pressure. And It seems to me that a scroll would allow the pressures to equalize since they don't have valves, making the solenoid useless anyway.

[beenthere]

Actually compressors start easier with balanced pressure. And It seems to me that a scroll would allow the pressures to equalize since they don't have valves, making the solenoid useless anyway.

The old ones did. Thats why they would spin backwards after shutting off.
Since they have a check valve now, they don't equalize if you have a SV, or balance post TXV.