I would like to maintain a constant Td in Evaporator. Will using a Variable Frequency Drive Help to maintain the same. The Room Temperature has to remain constant. The refrigeration compressors are semi hermetic reciprocating operating with R 22. In addition to this I also propose to use Electronic Expansion Valve and a Evaporator Pressure Regulator.

Are their any documents available with any obe on Variable Frequency Drive system on Refrigeration application.