Johnson Controls A19ADC-37 Utility Thermostat 30067439-890 With a 1/8-inch orifice

With a 1/8-inch orifice

this NTC thermistor provides the critical resistance data needed by the HVAC control board to manage staging and prevent equipment short-cycling

Smith 100165919 Ignitor

Why use an HH core instead of a standard core

this 1/4" NPT or clip-on style probe offers the necessary response time to prevent system hunting and maintain commercial HVAC efficiency under varying load conditions

Johnson Controls A19ADC-37 Utility Thermostat 30067439-890 With a 1/8-inch orificeJohnson Controls A19ADC 37 Utility Thermostat, 120 208 240 Vac, 90 325 Degree Temperature Range, 10 Degree Differential, 10' Capillary Length, SPDT Open Hi, Remote Bulb, Manual Reset, Knob Setpoint Adjustment A19ADC 37 is identical to A19ADC 37C