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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
ensuring stable downstream pressure even under no-flow conditions
A steady-on LED typically signals an internal hardware or software fault
It will automatically close the circuit once the sensed temperature falls approximately 30°F below the trip point
but check for cracked pressure switch tubing
The integrated 15-second off-delay prevents nuisance burner short cycling during momentary water fluctuations
Nordyne 669471R Coil THPU32HP7Y ensuring stable downstream pressure evenThe Nordyne 669471R is a high performance 24v reversing valve coil designed for precision operation in air conditioning and heat pump systems. This genuine OEM component is the direct replacement for part number EF19ZZ134, ensuring seamless integration into existing service workflows. Built to withstand the rigorous demands of HVAC 4 way valves, this coil handles the electrical shifting of the reversing valve to toggle between heating and cooling