DUAL ®& DUAL ® SH SINGLE ®& SINGLE ® SH - Expert-CM
DUAL ®& DUAL ® SH SINGLE ®& SINGLE ® SH - Expert-CM
DUAL ®& DUAL ® SH SINGLE ®& SINGLE ® SH - Expert-CM
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SERVICE (cont.)<br />
SOLENOID VALVE (Inlet)<br />
.<br />
MINUTES<br />
BUNN-O-MATIC<br />
P/N 2620- 120 VAC<br />
.<br />
MINUTES<br />
BUNN-O-MATIC<br />
P/N 2620- 120 VAC<br />
1⁄2 gal<br />
1 1⁄2 gal<br />
1 gal<br />
READY SELECTOR<br />
ON / WARMER START<br />
CAUTION : WARMERS AN D SURFAC ES ARE HOT<br />
! CAUTION HOT WATER<br />
FIG. 36 SOLENOID VALVE<br />
1 1⁄2 gal<br />
1 gal<br />
START ON / WARMER SELECTOR READY<br />
Location:<br />
The solenoid valve is located inside the lower right<br />
front of Dual brewers and inside the hood on the upper<br />
component bracket on Single brewers.<br />
1 2 3 4 5 6<br />
TL5<br />
TL4<br />
TL3<br />
TL2<br />
TL1<br />
SET<br />
LOCK<br />
SET LOCK<br />
J2<br />
J1<br />
3<br />
2<br />
4<br />
1<br />
5<br />
.5<br />
MINUTES<br />
BUNN-O-MATIC<br />
P/N 2620- 120 VAC<br />
Test Procedure:<br />
1. Disconnect the brewer from the power source.<br />
2. Remove both wires from the solenoid valve coil<br />
terminals.<br />
3. With a voltmeter, check the voltage across the<br />
removed wires:<br />
a.) Violet and white on120, 120/208 and 120/240<br />
volt three wire electro/mechanical models.<br />
b.) Violet and red on 200, 230 and 240 volt electro/<br />
mechanical models.<br />
c.) White/blue and white on 120/208 volt and<br />
120/240 volt electronic models.<br />
1⁄2 gal<br />
P796<br />
P2230<br />
Page 33<br />
d.) White/blue and red on 200 volt and 240 volt<br />
electronic models.<br />
Connect the brewer to the power source. The<br />
indication must be:<br />
a.) 120 volts ac for two wire 120 volt models, three<br />
wire 120/208 volt models and three wire 120/240<br />
volt models.<br />
b.) 200 to 240 volts ac for 200V or 240V two wire<br />
models.<br />
4. Disconnect the brewer from the power source.<br />
If voltage is present as described, proceed to #5.<br />
If voltage is not present as described, refer to the Wiring<br />
Diagrams and check brewer wiring harness.<br />
5. Check for continuity across the solenoid valve coil<br />
terminals.<br />
If continuity is present as described, reconnect the<br />
wires and proceed to #6.<br />
If continuity is not present as described, replace the<br />
solenoid valve.<br />
6. Check the solenoid valve for coil action. Connect<br />
the brewer to the power source. Listen carefully<br />
in the vicinity of the solenoid valve for a "clicking"<br />
sound after approximately 1 second, as the coil<br />
magnet attracts.<br />
7. Disconnect the brewer from the power source.<br />
If the sound is heard as described and water will not<br />
pass through the solenoid valve, there may be a blockage<br />
in the water line before or after the solenoid valve,<br />
or the solenoid valve may require inspection for wear,<br />
and removal of waterborne particles.<br />
If the sound is not heard as described, replace the<br />
solenoid valve.<br />
Removal and Replacement:<br />
1. Remove all wires from the solenoid valve coil.<br />
2. Turn off the water supply to the brewer.<br />
3. Disconnect the water lines to and from the solenoid<br />
valve.<br />
4. <strong>SINGLE</strong> BREWERS: Remove the two #10-32 slotted<br />
head screws and lockwashers holding the solenoid<br />
valve to the upper component bracket.<br />
<strong>DUAL</strong> BREWERS: Remove the two #8-32 slotted<br />
head screws holding the solenoid valve and mounting<br />
bracket to the brewer trunk. Remove the two<br />
41976 031709