Bunn DUAL TM (Serial # DUAL010000 - Up) 27040.0000F Manual De Usuario

Page 31

If voltage is present as described, reconnect the black
wire to the limit thermostat from the terminal block,
the limit thermostat is operating properly.
If voltage is not present as described, refer to the
Wiring Diagrams and check brewer wiring harness.

Removal and Replacement:
1. Remove all wires from the limit thermostat termi-

nals.

2. Carefully  remove the two #8-32 nuts securing the

limit thermostat to tank lid and remove limit ther-
mostat.

3. Carefully secure new limit thermostat to  tank lid.
4. Refer to Fig. 19 when reconnecting the wires.

P791

Location:

The limit thermostat  is located inside the hood on

the tank lid just to the left of the right tank heater.

Test Procedure:
1. Disconnect the brewer from the power supply.
2. Disconnect the black wire from the limit thermo-

stat to the terminal block.

3. With a voltmeter, check the voltage across the

black wire removed from the limit thermostat and
the black wires to the tank heater terminals.

4. Connect the brewer to the power supply.
5. The indication must be:

a.) 208 or 240 volts ac on electronic three wire
models.
b.) 120 volts ac on eletro/mechanical brewers.
c.) 200 or 240 volts ac on electro/mechanical or
electronic control two wire  "A" or "B" models.

6. Disconnect the brewer from the power supply.

.

MINU

TES

BUNN

-O

-M

ATIC

P/N

 2620-   120

 VAC

STA

RT

ON

 / WA

RM

ER

SE

LE

CT

OR

READ

Y

RE

AD

Y

ON

 / WA

RM

ER

STA

RT

1 

1⁄2

 ga

l

1 g

al

1⁄2

 gal

SEL

EC

TO

R

1 

1⁄2

 ga

l

1 g

al

1⁄2

 ga

l