Mcdonnell miller model number 193 7b is a combination float operated low water cut off and pump controller for steam boilers. Flow switch replacement parts notes notes.
Oklahoma City Public Schools Board Meeting Minutes Jan 1931
Mcdonnell miller no 7b wiring diagram. Pa r a l l e l warning to prevent an electrical fire equipment damage or electrocution follow electrical wiring instructions codes and ordinances. 7b switch for series 93 193 94 and 194 combination low water cut off pump controller for all steam boilers. Mcdonnell miller service parts catalog parts list mm 701b. 2 309000 7b 1r resistorslide 0105 wire assembly 3 345150 sa7 30 terminal panel 0523. A wiring diagram is a simple visual representation of the physical connections and physical layout of an electrical system or circuit. 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.
Models with 5 or 5 m switch models with 7b or 7b m switch approximate distance above cast line differential setting in. This control features an automatic reset with optional number 7b single pole single throw switches for low water cut off and pump control and proportional control switch to maintain constant boiler levels. Mcdonnell miller 67 wiring diagram what is a wiring diagram. Mcdonnell miller service parts catalog parts list mm 701d. Mcdonnell miller 7 b 7b potentiometer switch proportional signal 110800 7b potentiometer switch proportional signal 110800. 1 table of contents ps 800 series 5 pse 800 series 5.
7 110900 7b m no. Mm pump off 2316 56 1116 27 pump on 118 29. Failure to follow this warning could cause property damage personal injury or death. It shows how a electrical wires are interconnected and will also show where fixtures and components may be attached to the system. 1 table of contents. Mcdonnell miller s warranty is one 1 year from date of installation or two 2 years from the date of manufacture.
Switches and how to wire popular mcdonnell miller p r o d u c t s. Mcdonnell miller is a leader in engineering and manufacturing boiler controls liquid level controls low water cutoffs and flow switches for steam and hot water boilers in industrial commercial and building trades applications. 116 basic wiring mcdonnell miller 14. 5 switch included magnetic repulsion eliminates need for bellows optional features manual reset 7b switch 135ohm proportionalread more. 7b wmanual reset 4018.
Gallery of Mcdonnell Miller No 7b Wiring Diagram
