JOHNSTONE SUPPLY

Description:

• For boilers of any size with separate water columns
• Designed for high pressure, high temperature service
• Float-actuated electrical switch controls boiler feed pump directly from the boiler water level
• Keeps boiler water level within the limits recommended for maximum steaming efficiency and fuel economy
• Includes a second switch, operating at a lower level, which provides a circuit for stopping the automatic burner and sounds an alarm
• Snap switch
• Can also be used as a cut-off and alarm on many high pressure hot water space heating boilers
• 1" NPT connections
• Maximum pressure: 150 PSI boiler
• Electrical ratings for pump and cut-off circuits: 120VAC — maximum F/L amps 7.4; maximum L/R amps 44.4; 240VAC — maximum F/L amps 3.7; maximum L/R amps 22.2; 120VDC — maximum F/L amps 2.4; maximum L/R amps 24.0; 240VDC — maximum F/L amps 1.2; maximum L/R amps 12.0
• Amp rating for alarm circuit: 120VAC — 1A; 240VAC — 1/2A; 120VDC — 1/2A; 240VDC — 1/4A circuit
• Pilot duty service: 120/240VAC, 345VA

Mfg. #: 171702; Model #: 150S;