Johnson Controls A19AAC-59 Utility Thermostat Freon this sensor initiates the defrost

this sensor initiates the defrost cycle by closing at 34°F and terminates the cycle by opening at 60°F

this unit effectively absorbs kinetic energy by compressing a pre-charged air pocket

High-Temperature Protection: Triggers a shut-down at 240°F to prevent heat exchanger overheating

Built to monitor negative pressure produced by the induced draft blower

Common Questions Is the Reznor 89661 compatible with all unit heaters

Johnson Controls A19AAC-59 Utility Thermostat Freon this sensor initiates the defrostJohnson Controls A19AAC 59 Utility Thermostat, 120 208 240 Vac, 65 300 Degree Temperature Range, 6' Capillary, Open on Rise, Bulb Style 1, Screw Driver Range Adjuster A19AAC 59 is the direct replacement for A19AAC 61 (SLIGHTLY SHORTER BULB)