Description
soot buildup on the sensor arm
avoiding the need for a full system drain-down
The RA-911 serves as a remote visual annunciator
Using an automatic reset limit switch prevents permanent lockouts during temporary airflow restrictions
Carrier HH22UC063 Override Switch Els PW 17895 soot buildup on the sensorThe Carrier HH22UC063 Override Switch is a critical field installed component designed specifically for Carrier heat pump systems utilizing outdoor thermostats. This high reliability low voltage bypass switch allows service technicians or property owners to manually override the set points of an outdoor thermostat (OT), ensuring the system can engage supplemental heat or maintain compressor operation regardless of ambient temperature readings. Built