the 1F56N-444 is designed to work with 3-wire zone valve installations and includes a terminal wallplate to facilitate these connections

Direct Compatibility: Seamlessly replaces 47K2001 and R39370B001 without the need for mounting modifications

The heavy-duty condenser style fan blade construction is built to withstand the high-RPM stress of 1725 Max RPM motors without blade deflection or pitch loss

Its 4-way flexing action is specifically tuned to absorb shock loads and dampen damaging vibrations

so verify if your specific subbase includes the S1

Johnson Controls A19AAD-26 Utility Thermostat 30067439-890 the 1F56N-444 is designed toThe Johnson Controls A19AAD 26 Utility Thermostat is a heavy duty, single stage temperature control designed for reliable performance in demanding HVACR environments. This remote bulb thermostat features a 30? F to 90? F temperature range, making it ideal for refrigeration control, space heating, and general purpose industrial applications. Built with a 6 foot copper capillary and a 3 8" x 1 1 2" sensing bulb, the A19AAD 26 provides accurate thermal