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The Williams 1403822 Direct Vent Furnace is a high-efficiency natural gas wall heater designed for compact residential and commercial heating applications
Is the handwheel active during powered operation
the integrity of the primary control board is what dictates the communication between the thermostat
non-reversing frame featuring straight-through wiring and box lug terminals for secure
leak-resistant permanent installation in fan coil units
York S1-025-47960-000 Valve Harness 319825-402 The Williams 1403822 Direct VentThe York S1 025 47960 000 Valve Harness is a critical OEM replacement part designed for precision signal transmission between the system control board and the gas valve or reversing valve. In high demand HVAC unit repairs, maintaining electrical integrity is paramount to prevent intermittent communication failures or "no heat" calls. This furnace wiring harness features factory terminated connectors that ensure a secure, vibration resistant fit,
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