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excessive corrosion
it ensures the sequence of operation is maintained by verifying proper vacuum pressure before allowing the ignition process to proceed
05" round shafts or 3/8" to 3/4" square shafts using the standard U-clamp provided
a 4-inch diameter hole is required for either roof or sidewall penetrations
Interchangeable Specifications: Fully identical to PM25049-3-AC
Bard CMH-20 Control 322838-754 excessive corrosionThe Bard CMH 20 Low Ambient Control is a field installable kit engineered for Bard wall mount heat pumps to enable reliable cooling operations in low temperature environments. This pressure actuated fan cycle control maintains optimal head pressure by cycling the outdoor fan motor when ambient temperatures drop below 60F. Designed specifically for compatibility with Bard WH series units, the CMH 20 head pressure control prevents evaporator coil freeze
