Bunn C Manuale Di Servizio

Page 22

Location:

The tank heater switch is located on the rear

of the brewer on the upper left side of the trunk.

Test Procedure:
1.

Disconnect the brewer from the power source.

2.

Disconnect the black wire from the limit thermo-
stat.

3.

With the tank heater switch in the "ON" position
check the voltage between the black wire re-
moved from the limit thermostat and the white
wire or red wire on the tank heater with a voltme-
ter. Connect the brewer to the power source. The
indication must be:
a) 120V volts ac on two wire 120 volt models.
b) 240 volts ac on three wire 120/240 volt mod-
els.
c) 200 to 230 volts ac on 200 volt or 230 volt
models.

4.

Disconnect the brewer from the power source.

If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to the
Wiring Diagrams  and check the brewer wiring har-
ness.

P1153

10841 020503

P1168

WHI to Terminal Block
(White Insert on 120V
Two Wire Models)
RED to Terminal Block
(Red Insert on 120/240V
Threee wire Models or
200V and 230V Two
Wire Models)

BLK to Control
Thermostat (Brewers
W/Out Faucet) Thermal
Cut-Off to BLK from
Control Thermostat
(Brewers W/Faucet

15. Reconnect the wires to the limit thermostat, tank

heater and control thermostat. See limit thermo-
stat and control thermostat sections in this manual
when reconnecting wires.

16. Install fill basin, secure with tank inlet fitting and

gasket. Insert water supply line through grom-
met in fill basin.

17. Refer to the illustration below when reconnecting

the tank heater wires.