Bunn FMD-5 사용자 설명서

48

P4102

FIG. 46 HOT WATER DISPENSE 

SOLENOID VALVE

Location:

The hot water solenoid valve is located on the  left side 

of the tank.

Test Procedures:

1.  Disconnect the dispenser from the power source.

2.  With a voltmeter check the voltage across the white 

and blue wires at the solenoid valve. Connect the 

dispenser to the power source. The indication must 

be:

 

a) 120 volts ac for two wire 120 volt models

 

b) 120 volts for three wire 120/208 or 120/240 volt 

models 

 

c) 240 volts ac for two wire 240 volt models.

 

d) 230 volts ac for two wire 230 volt models.

3.  Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #4.

If voltage is not present as described, refer to the wiring 

diagram and check dispenser wiring harness.

4.  Disconnect the white and blue wires from the so-

lenoid valve.

5.  Check for continuity across the solenoid valve coil 

terminals.

If continuity is present as described, reconnect the 

white and blue wires to the solenoid.

If continuity is not present as described, replace the 

solenoid valve.

6.  Check the solenoid valve for coil action. Connect 

the dispenser to the power source. Listen carefully 

in the vicinity of the solenoid valve for a “clicking” 

sound as the coil magnet attracts.

7.  Disconnect the dispenser from the power source.

If the sound is heard as described and water will not 

pass through the solenoid valve, there may be a block-

age in the water line before the solenoid valve or the 

solenoid valve may require inspection for wear, and 

removal of waterborne particles.

If the sound is not heard as described, replace the 

solenoid valve.

Removal and Replacement:

1.  Remove the white and blue wires from the solenoid 

valve.

2.  Turn off the water supply to the dispenser.

3.   Drain enough water from the tank (approximately 

2.0 gallons) so the water level is below the dispense 

valve mounting hole.

4.  Disconnect the water line from the solenoid 

valve.

5.  Loosen the #10-32 screw securing the solenoid 

valve to side of the tank. Twist the solenoid valve 

clockwise and remove solenoid valve.

6.  Using the #10-32 screw install new solenoid valve 

on side of the tank.

7.  Push the water line onto the tube on bottom of 

solenoid valve.

8.  Refer to schematic wiring diagrams when recon-

necting the wires.

P1995.50

FIG. 47 HOT WATER DISPENSE 

SOLENOID VALVE WIRING

42672 122209