Johnson Controls A19AAB-4 Temperature Control 30067439-890 Consult your specific wiring diagram

Consult your specific wiring diagram to confirm the heater is de-energized while the compressor is running to maximize efficiency

Flare and 1/2" Male Pipe Thread (MPT) connections for a secure

this control relay manages the HVAC blower motor control and integrated logic sequences required for efficient system operation

the VS3223 utilizes a two-position steam valve body architecture

03” from sharp edge to sharp edge

Johnson Controls A19AAB-4 Temperature Control 30067439-890 Consult your specific wiring diagramThe Johnson Controls A19AAB 4 is a professional grade mechanical temperature control designed for heavy duty HVACR applications requiring high precision single stage temperature control. This robust remote bulb thermostat features a single pole, single throw (SPST) switch configuration that is factory set to open on high temperature. Engineered with a liquid filled sensing element, the A19AAB 4 provides consistent repeat accuracy that remains