Bunn OL 사용자 가이드

Page 14

FIG. 4 WARMERS

FIG. 5 WARMERS

FIG. 6 WARMER WIRING

OL: 

Brew Station & Upper

RL: 

Left Rear, Left Front, Brew Station, & Right Front

Location:

OL: One of the warmers is beneath the brew funnel

and the other is on the top lid, FIG. 4.

RL: These warmers include the one beneath the

brew funnel, the ones on the right and left of the brew
station, and the one above and to the left of the brew
station as viewed from the front, FIG. 5.

Test Procedure:
1.

Once the switch has been tested and switch fail-
ure has been eliminated, proceed as follows.

2.

Disconnect the brewer from the power source
and remove the #4-40 screws attaching the
warmer being tested.

3.

Lift the warmer assembly from the brewer and
invert the warmer making the wire terminals ac-
cessible for testing.

4.

Check for continuity from the switch to the black
wire at the warmer element.

If continuity is present as described, proceed to #5.

5.

Check for continuity from the wire terminal of
the white or red wire to the splice or indicator
lamp using the chart below.

If continuity is present as described, proceed to #6.
If continuity is not present as described, refer to the
Wiring Diagrams and check the brewer wiring har-
ness.

6.

Check for continuity across the two terminals on
the warmer.

If continuity is present as described, the warmer is
operating properly.
If continuity is not present as described, replace the
warmer.

Removal and Replacement:
1.

Remove the #4-40 slotted-head screws holding
the warmer to the brewer

2.

Lift the warmer assembly from the brewer.

3.

Disconnect both wires from the warmer.

4.

Refer to FIG. 6 when reconnecting the wires.

5.

Place the new warmer into the brewer and se-
curely attach it using the #4-40 screws.

MODEL
OL Upper

WHI OR RED

to Indicator Lamp

OL Brew Station

WHI OR RED

to Indicator Lamp
to Terminal Block

RL Left Rear

WHI OR RED

to Terminal Block
to Brew Station Warmer

RL Left Front

WHI OR RED

to Indicator Lamp

RL Brew Station

WHI OR RED

to Relay P2
to Left Rear Warmer

RL Right Front

WHI OR RED

to Right Rear Warmer Switch

P1712

P1713

P1692

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