Description
The Rheem-Ruud 42-101504-02 2-Stage Comfort Alert Module is a quite specific part that increases the efficiency of HVAC equipment. In this capacity as a Comfort Alert Module, it is supposed to check for any issues with the air conditioning or heat pump equipment into which it is wired it uses single phase electrical power with voltage of between 18 to 30 VAC and frequency of between 48 to 62 Hz. This module works in the following way: It constantly monitors the efficiency of the HVAC system and if it feels that there is something wrong with the system which can be a low refrigerant charge, an electrical problem or a bad compressor, it gives out a loud beep.
