McDonnell Miller Combination Low Water Cut Off Pump Controllers Series 94

•  For commercial and industrial low or high pressure steam boilers
•  Maintains consistent water level regardless of pressure
•  For boilers of any steaming capacity
•  No. 5 Switch included
•  Magnetic repulsion eliminates need for bellows
•  Optional features – Manual reset
•  7B switch (135ohm proportional control signal) to maintain constant boiler water level – BSPT threads
•  11 ⁄4" NPT connections
•  Maximum pressure 250 psi (17.6 kg/cm2 )
•  Ten bolt flange

Electrical Ratings

345 VA at 120 or 240 VAC

Dimension (in MM)

Model                     A                  B                 C                        D

94                        6 (152)        7 (178)      10 ⁹ ⁄16 (268)      18 ¹³ ⁄16 (478) 

94-A                     6 (152)        7 (178)     10 ⁹ ⁄16 (268)       18 ¹³ ⁄16 (478) 

Features and Benefits

• For commercial and industrial low or high pressure steam boilers
• Maintains consistent water level regardless of pressure
• Water column with integral tappings for gauge glass and tri-cock installations
• For boilers of any steaming capacity
• No. 5 Switch included
• Magnetic repulsion eliminates need for bellows

McDonnell Miller Combination Low Water Cut Off Pump Controllers Series 94

Manual reset
7B switch (135ohm proportional control signal) to maintain constant boiler water level
1″ NPT connections
Maximum pressure 250 psi (17.6 kg/cm2) – Series 94