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this relay is specifically calibrated for High Starting Torque (HST) motors
Enhanced Ignition Reliability: Correct orifice sizing minimizes nuisance lockouts and ensures the thermocouple or flame sensor receives adequate heat
it maintains consistent drive belt tension and reduces slippage energy loss
Durable Solenoid Design: The red 24vac coil is built to withstand high-ambient temperatures found in outdoor condenser units without winding degradation
ensuring any underlying issues—such as a stuck primary thermostat or heating element scale buildup—are addressed before the heater is returned to service
Honeywell 220738A Adapter Bracket this relay is specifically calibratedThe Honeywell 220738A Adapter Bracket is a critical mounting accessory designed to maintain operational parity when upgrading to modern Modutrol IV motors. This bracket functions specifically to raise the actuator shaft height by 0. 75 inches (19 mm), effectively matching the footprint and mechanical alignment of legacy Modutrol models such as the M934, M944, M945, and M975. For HVACR technicians performing field replacements, this component
