Bunn FMD-1 Guía Del Usuario

Descargar
Página de 43
19
J1
Location
FMD-1
The front door lamp ballast is located behind the front 
access panel on the left front side of the component 
bracket.
FMD-2
The front door lamp ballast is located behind the front 
access panel on the left rear side of the component 
bracket.
Test Procedure
1.  Disconnect  the  dispenser  from  the  power 
source.
2.  Disconnect the two black lead on the ballast from 
the main harness.
3.  Check for continuity between the two black leads 
on the ballast.
If  continuity  is  present  as  described  the  ballast  is 
operating properly.
If continuity is not present as described, replace the 
ballast.
 
Removal and Replacement
FMD-1
1.  Disconnect the wires from the ballast.
2.  Remove the  two #8-32 screws securing the ballast 
to the component bracket.
3.  Remove and discard ballast.
4.  Using two #8-32 screws install new ballast  on the 
component bracket. 
5.  Refer to the Fig. 9 when reconnecting the wires.
FMD-2
1.  Loosen the two #8-32 screws securing the com-
ponent bracket to the dispenser housing base.
2.  Pull component bracket out the front of the dis- 
penser far enough so the leads on the ballast can 
be disconnected from the main wiring harness and 
the door interconnect harness.
3.  Remove the two #8-32 screws securing the ballast 
the rear of the component bracket. 
4.  Remove and discard ballast.
5.   Install new ballast on the rear of the component 
bracket and secure with two #8-32 screws.
6.  Refer to Fig. 9 and reconnect the wires.
BLK to BLK
from Main
Wiring Harness
BLK to BLU from
Main Harness
P1447
FIG. 9 BALLAST TERMINALS
SERVICE (cont.)
CONTROL THERMOSTAT - FMD-1 & FMD-2
FIG. 10 CONTROL THERMOSTAT
P1665
Location
The  control  thermostat  is  located  under  the  front 
tank mounting bracket on the upper right side of the 
dispenser housing.  
Test Procedure
1.  Disconnect  the  dispenser  from  the  power 
source.
2.  Disconnect the black wire of the control thermostat 
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 dispenser 
to the power source. The indication must be:
 
a) 120 volts ac for two wire 120 volt models.
BALLAST - FMD-1 & FMD-2 (cont.)
7.  Place  the  component  bracket  into  position  and 
tighten the two #8-32 screws securing the com-
ponent bracket to the dispenser housing base.
29112 101598