Lennox 74H01 Potential Relay 320720-756 This general service valve is

This general service valve is a preferred choice for HVACR professionals requiring a durable

When you're out in the field and find a blank thermostat or a dead control board

this adapter is the professional standard for technicians retrofitting Copeland Scroll compressors

When should an 8" MG1 be used instead of a single-acting control

If the 24V coil is energized but the contacts do not close

Lennox 74H01 Potential Relay 320720-756 This general service valve isThe Lennox 74H01 Potential Relay is a mission critical OEM replacement part designed for high torque motor starting applications in residential heating and commercial air conditioning systems. Engineered to manage compressor start up cycles, this potential type motor starting relay features a normally closed (SP N. C.) contact configuration that effectively removes the start capacitor from the circuit once the motor reaches sufficient back