post #41 of 41

The suction side can have a little ice on it.
One of the main things is the temperature of the refrigerant leaving the condenser should be very close to room temperature. Under load the discharge on a reciprocating shouldn't clear 70C while most rotarys can handle 110C-130C depending on there normal refrigerant type.

Remember some of these things are designed to be in the sun on 100F+ days!

Either way, lower the better.

I made alot of 1/5hp minys for people for a while, that even the discharges weren't much higher then room temp. It depends on tuning and how hard you want to push the system.