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this amplifier integrates easily into existing setups
It helps in managing fan control with multiple safety operations
It is UL181A and UL181B listed
Liquid Line Size: 1/2 inches
Durable design withstands environmental extremes
Johnson Controls A421ABC-03C Electronic Temperature Control 1 Switch 9.75 Ft. Replacement A319ABC-24-01 voomi_id_59287 this amplifier integrates easily intoProduct Description The Johnson Controls A421ABC 03C Electronic Temperature Control is a versatile device designed for precise temperature management. This single stage control features a single pole, double throw (SPDT) output relay. Easy to read, bright LCD screen Adjustable temperature set points for heating or cooling Simple installation and programming Product Highlights The A421ABC 03C offers precise management of heating and cooling
