It is primarily used as an indoor air or coil sensor to monitor discharge temperatures in commercial air handlers and heat pump systems

The manual reset requirement ensures that a qualified HVAC technician evaluates the system to prevent repeated overheating which could lead to equipment failure

If the noise originates from a cracked or loose housing rather than the motor bearings

this fixed orifice assembly is designed for the management of both liquid and gas flow

preventing the common communication errors associated with generic alternatives

Aprilaire 5558 Humidistat 326070-701 It is primarily used asThe Aprilaire 5558 is a high performance Automatic Digital Modulating Control package engineered specifically for use with the Model 866 modulating steam humidifier. This modulating steam humidistat provides superior precision by utilizing a microcomputer based design and a proportional algorithm. Unlike standard on off controls, the 5558 delivers a 0 10VDC or 2 10VDC modulating output signal, allowing the humidifier to adjust its output based on the