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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Operating at 480 Volts and producing 70 Watts
featuring a fixed 165 psi opening point and a 130 psi closing point
5 Cv flow coefficient
Can this thermostat be used for cooling applications
maintaining the factory finish of your existing pneumatic control system
Johnson Controls A28AA-20 Temperature Control Refrigerant Operating at 480 Volts andThe Johnson Controls A28AA 20 is a heavy duty two stage temperature control designed for multi stage heating or cooling applications in commercial refrigeration and HVAC systems. Featuring dual SPDT switches, this controller allows for independent sequencing of equipment loads, making it ideal for managing staged compressor banks or ventilation systems. The unit operates across a wide voltage range, including 120 208 240 277 Vac, ensuring
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