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the Nordyne 903106 is the specified direct replacement for M2 and M3 series furnaces
or the furnace cycling through several ignition attempts before entering a "lockout" mode
8-Row Surface Area: Enhanced dimensions capture evaporator coil runoff across a broad footprint to eliminate bypass moisture
The inclusion of a precision-machined piston assembly
This module is programmed with a 20-second ignitor heat-up time and a 7-second trial for ignition
Lennox 78L20 Valve THPU32HP7Y the Nordyne 903106 is theThe Lennox 78L20 Valve is a professional grade thermostatic expansion valve (TXV) designed for precision refrigerant metering in 3 ton residential and light commercial AC units. Engineered specifically for R22 and R407C refrigerants, this OEM component regulates flow into the evaporator coil to maintain optimal superheat, preventing liquid slugging and protecting the compressor from premature failure. Featuring a 3 8" x 1 2" ODF (Outside Diameter
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