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Circuit Protection: A 3-pole configuration allows for integrated control of multiple heating circuits and the indoor blower motor
the degree F scale plate
ensuring the static pressure is correctly maintained for the pressure switch to close during the pre-purge cycle
The integrated needle valve allows for controlled flow (less than 0
as well as up to 50% ethylene glycol mixtures
Johnson Controls A19ABC-12 Temperature Control Els PW 17895 Circuit Protection: A 3-pole configurationThe Johnson Controls A19ABC 12 is a professional grade mechanical temperature control designed for demanding hot water immersion applications. This single stage thermostat features a SPDT switch (Single Pole, Double Throw) that provides versatile control for both heating and cooling circuits. Operating on a 24 to 277Vac range, the unit employs a liquid filled sensing element that ensures rapid response to temperature fluctuations and high