Rotary Switch 3-Position For Water Heat Exchangers The 3-Position Rotary Switch (Assy. FR057) allows manual fan speed control for compatible liquid heat exchangers. Designed for simple and effective operation with Off, Low, and High settings. Switch Positions Position 1 Off Position 2 Low Speed Position 3 High Speed Compatible With FR014 Liquid Heat Exchanger FR039 Liquid Heat Exchanger FR049 Liquid Heat Exchanger FR050 Liquid Heat Exchanger Specifications Part Number: FR057 Type: Rotary dial 3 positions Application: Fan speed control for Siroco & Autoterm water heat exchangers
