Vilter tuning/unload and load setpoints

[RANGER1]

squidward ,
When you say hot gas bypass do you mean high pressure gas from liquid reciever into compressor suction line ?

If so you could also use a regulating valve ( crankcase pressure regulator ) .
On low loads it will modulate high pressure gas into suction line to keep pressures more smooth and constant .

The solonoid can be used as a back up with pressure switch in case modulating valve leaks etc .
If liquid level in evap not high enough or reciever level low ( blowing hp gas into evap ) suction pressures will also fluctuate wildly . Normally liq reciever level should be high enough to allow for varying loads , condensor fan cycling etc .

Looks like your on the right track anyway .