no special tools are required to access or service the internal modular check cartridges

A reading outside the manufacturer's specified range typically indicates a failing HSI component

This part number is for the replacement diaphragm only

When diagnosing a failed motor

a manufacturer-approved conversion kit must be installed per the unit's rating plate specifications

Johnson Controls T46SAA-1 Thermostat Els PW 17895 no special tools are requiredThe Johnson Controls T46SAA 1 is a robust line voltage fan coil thermostat engineered for precise heating and cooling applications in commercial and residential HVAC systems. Designed with heavy duty construction, this manual changeover thermostat features a Heat Off Cool system switch and an integrated Lo Med High fan switch for direct control of multi speed fan motors. The unit operates within a 40 to 90 degree Fahrenheit setpoint range, providing