The basic components and function of a thermostatic expansion valve (TXV) continues to play a role in HVAC service. “Long, long ago in a faraway place, TXVs had very little impact on service ...
PHOENIX - Refrigeration School Inc. (RSI) has long been dedicated to providing troubleshooting training for students. For instance, in the 1970s, the Phoenix-based school developed the Service Trainer ...
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