SERVICE (cont.)
CONTROL THERMOSTAT - |
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J1 | P2635 |
J2 | |
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FIG. 9 CONTROL THERMOSTAT |
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Location |
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The control thermostat is located at the upper left rear of the dispenser housing.
Test Procedure
1.Disconnect the dispenser from the power source.
2.Disconnect the black wire of the control thermo- stat from the black lead from the limit thermostat.
3.Remove bulb from the tank.
4.Check the voltage across black wire on the control thermostat and the white or red wire on the tank heater with the tank heater switch in the “ON” lower position with a voltmeter. Connect the dis- penser to the power source. The indication must be:
a)120 volts ac for two wire 120 volt models.
b)208 volts ac for three wire 120/208 volt models.
c)240 volts ac for three wire 120/240 volt models.
5.Disconnect the dispenser from the power source.
If voltage is present as described the control thermo- stat is operating properly. Reinstall bulb into the tank. If voltage is not present as described, replace the thermostat.
Removal and Replacement.
1.Remove the thermostat capillary bulb by firmly
2.Loosen the two
3.Disconnect the wires from the thermostat.
4.Remove thermostat and remove the screws and spacers from the thermostat.
5.Discard thermostat.
6.Install two spacers and two
7.Position the thermostat on the botttom side of the front tank mounting bracket and tighten the two
8.Slide the grommet to the line 4.5" above the bulb on the new capillary tube.
9.Insert the capillary bulb through the hole in the tank lid and press the grommet firmly and evenly so that the groove in the grommet fits into the tank lid.
10.Carefully bend the capillary tube so that the tube and bulb inside the tank are in the vertical position and away from any electrical connections.
11.Refer to Fig. 10 and reconnect the wires.
NOTE - The capillary tube must be clear of any electri- cal termination and not kinked.
BLK from Limit
Thermostat
BLK from Tank
Heater Switch
P1668
FIG. 10 THERMOSTAT TERMINALS
19 | 35135 012103 |
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