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The "BX" simply indicates the part is packaged in a box for individual sale rather than bulk assembly
This crankcase heater keeps the compressor oil warmer than the rest of the system to prevent refrigerant from mixing with the oil
"hunting" ignition cycles
a capacitor with a higher voltage rating (like 440V) can replace a lower-rated 370V unit
Friedrich Air Conditioning 61108801 Relay 320788-703 The "BX" simply indicates theThe Friedrich 61108801 Relay (A4850 10) is a critical OEM replacement part engineered for high cycle reliability in demanding environmental conditions. Designed specifically for the Friedrich KUHL series and Hazardgard PTAC units, this SPST power relay manages electrical switching for compressor and fan motor circuits. In the field, technicians rely on the A4850 10 relay to resolve common HVAC electrical issues such as intermittent cycling or total