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a 4-inch diameter hole is required for either roof or sidewall penetrations
Designed with a straight-through body pattern and flange
If the trap fails
the 238610-158-D is specifically designed for 240VAC 60Hz power sources
excessive corrosion
Bard CMH-20 Control 322838-754 a 4-inch diameter hole isThe 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
