Multi-compressor heat pump.

Sccoupe · 06-23-17, 09:13 AM

Doing lots of reading on single stage vs. 2 stage vs. inverter heat pumps. There are a few youtube videos on adding a VFD to a split system compressor.

The thought is, for a diy setup, why not a multi-compressor system. So, if we need 4 tons of heat/cooling, why not use 4, one ton compressors that are cheaply and easily found and stage compressor use based on need?

I guess the inverter and 2 stage units are using a wide range TVX to keep the evaporator from freezing when the compressor is running at lower speeds (or with only 1 of the 4 compressors running in our hypothetical scenario)?

Thoughts on possible pitfalls?

EDIT: In the search, the terms tandem compressor and EXV have come up. I like the sound of electronic expansion valve.

06-23-17, 09:13 AM	#1
Sccoupe Helper EcoRenovator Join Date: May 2017 Location: PA Posts: 43 Thanks: 4 Thanked 16 Times in 8 Posts	Multi-compressor heat pump. Doing lots of reading on single stage vs. 2 stage vs. inverter heat pumps. There are a few youtube videos on adding a VFD to a split system compressor. The thought is, for a diy setup, why not a multi-compressor system. So, if we need 4 tons of heat/cooling, why not use 4, one ton compressors that are cheaply and easily found and stage compressor use based on need? I guess the inverter and 2 stage units are using a wide range TVX to keep the evaporator from freezing when the compressor is running at lower speeds (or with only 1 of the 4 compressors running in our hypothetical scenario)? Thoughts on possible pitfalls? EDIT: In the search, the terms tandem compressor and EXV have come up. I like the sound of electronic expansion valve.