the TZ1004 features a rugged polymer resistive sensor and a clear digital humidity display for real-time localized monitoring

meaning it requires a minimum pressure differential of 5 PSI across the inlet and outlet to actuate the diaphragm effectively

the EF18LJ241 is the official replacement part for the discontinued EF18LJ242 and P901-1003 numbers

This universal furnace fan limit switch features an 11

it is designed to indicate motor on/off status

Carrier HH18HA281 Temp Switch 326058-758 the TZ1004 features a ruggedThe Carrier HH18HA281 is a precision engineered Defrost Temp Switch designed for high performance residential and commercial HVAC units. As a critical fixed temperature thermostat, it monitors coil temperature to initiate and terminate defrost cycles, preventing ice buildup on the outdoor coil. This OEM Carrier replacement part features a snap acting bimetal disc that ensures rapid response and reliable contact closure under extreme thermal