Johnson Controls A19ADC-37 Utility Thermostat 30067439-890 Why use an HH core

Why use an HH core instead of a standard core

simplifying inventory and replacement

a standard 10k ohm sensor should read approximately 10

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

Position #1 is typically used for reciprocating units

Johnson Controls A19ADC-37 Utility Thermostat 30067439-890 Why use an HH coreJohnson 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