Description
The Carrier 5F20-3742 Casing Heater is an essential part of air conditioners or refrigeration systems. The small heating element keeps your unit’s crankcase at optimal operating temperature and prevents condensation. During operation, the Heater produces warmth around the compressor crankcase inside a standard voltage range of 120V-240V. The warmth that comes from it helps protect the metal from howling cold which can allow condensation to form. Rust and potential corrosion can form when your Carrier compressor condenses, which will shorten its life. The casing heater is there to protect your system and to help it run efficiently and reliably by keeping the casing at a slightly elevated temperature.
