Specifications
Multiplex Company, Inc.
Component Parts Workbook
17
00218011 Revision B (KAK) 31 July, 2000
Circulating Pump and Motor
Function of the circulating pump and motor
Circulates coils carbonated water from the refrigeration unit up to the dispensing valves and
back to be re-chilled. This keeps the syrups, water and carbonated water continually chilled.
Failure of the circulating pump and motor
A weak or defective circulating pump or motor will cause warm drinks at the dispensing valves.
Notes:
w Draw about one gallon of carbonated water if temperature drops, replace pump
w Verify motor is turning (check power to the motor)
w Verify coupling key is operational
w Verify pump turns freely
w Check carbonated water strainer (if equiped with machine)
w 100 gallon pump = fast flow system
50 gallon pump = standard flow system
w When a pump goes out it can cause black specks to contaminate the carbonated water
circuit (carbon veins in the pump breaking up) you must flush circuit
How to flush a
contaminatedsystem
1. Take the fittings off the circu-
lating pump.
2. Plug one line.
3. Turn on water.
4. Turn off the water on the
CO
2.
5. Plug other line.
6. Repeat.
Coupling Key
Carbonated
Water Strainer