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this kit prevents evaporator coil freeze-up and ensures reliable compressor lubrication during low-ambient conditions
Exceeding this may impact the lockup performance and safety limits of the relief valve
preventing the boiler pump from cycling too frequently
The Watts 0009128
Carrier HH18HA122 Limit Switch Els PW 17895 this kit prevents evaporator coilThe Carrier HH18HA122 Limit Switch acts as a critical safety component for residential and light commercial HVAC systems, specifically designed to monitor internal heat exchanger temperatures. This automatic reset limit switch features a fixed set point of 117 120F, ensuring the burner circuit or blower operation is interrupted if thermal thresholds are exceeded. For technicians performing furnace repair or preventive maintenance, this OEM component
