VPR-VPS
SERIES
SERVICE & REPAIR MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
41667.0000A 10/08 ©2008 Bunn-O-Matic Corporation
BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY
Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:
1) All equipment other than as specified below: 2 years parts and 1 year labor.
2) Electronic circuit and/or control boards: parts and labor for 3 years.
3) Compressors on refrigeration equipment: 5 years parts and 1 year labor.
4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis:
parts and labor for 3 years or 30,000 pounds of coffee, whichever comes first.
These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by
it will be commercially free of defects in material and workmanship existing at the time of manufacture and
appearing within the applicable warranty period. This warranty does not apply to any equipment, component or
part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect,
alteration, improper installation or operation, improper maintenance or repair, damage or casualty. This warranty is
conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this warranty by telephone
at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois 62708-3227; 2) if requested by
BUNN, shipping the defective equipment prepaid to an authorized BUNN service location; and 3) receiving prior
authorization from BUNN that the defective equipment is under warranty.
THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR
ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN
are not authorized to make modifications to this warranty or to make additional warranties that are binding on
BUNN. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and
should not be relied upon.
If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its
exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts
and/or labor (during the applicable parts and labor warranty periods specified above) to repair the defective
components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall replace
the equipment or refund the purchase price for the equipment.
THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF
THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S
SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND.
In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales,
loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute
equipment, facilities or services, or any other special, incidental or consequential damages.
BrewWISE, BrewLOGIC, BrewWIZARD, BUNN Gourmet Ice, BUNN Pour-O-Matic, BUNN, Bunn-OMatic, Bunn-OMatic, BUNNlink, BUNNserve, BUNN Espress, DBC, Dr. Brew, Dual, EasyClear, EasyGard, Easy Pour, FlavorGard,
Gourmet Ice, Gourmet Juice, High Intensity, IMIX, Infusion Series, Quality Beverage Equipment Worldwide,
The Mark of Quality in Beverage Equipment Worldwide, My Café, PowerLogic, Safety-Fresh, Scale-Pro, Single,
Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, System III, ThermoFresh, 392, AutoPOD,
AXIOM, Beverage Profit Calculator, Beverage Bar Creator, BrewMETER, BUNNSERVE, BUNNsource, Coffee At Its
Best, Cool Froth, Digital Brewer Control, Intellisteam, Nothing Brews Like a BUNN, Pouring Profits, Pulse Wave,
Signature Series, Silver Series, Smart Heat, Tea At Its Best, The Horizontal Red Line, Titan, Ultra, are either
trademarks or registered trademarks of Bunn-O-Matic Corporation.
Page 2
41667 100908
INTRODUCTION
This equipment will brew a half-gallon batch of coffee into an awaiting dispenser. It can be
easily configured for 120V 15 amp, 120/208V 20 amp or 120/240V 20 amp. The brewer may have
a hot water faucet for allied beverage use. It is only for indoor use on a sturdy counter or shelf.
CONTENTS
Warranty ......................................................................................................... 2
Contents .......................................................................................................... 3
Troubleshooting .............................................................................................. 4
Component Access ......................................................................................... 7
Control Thermostat ......................................................................................... 8
Limit Thermostat (VPR - VPS) ...................................................................... 10
ON/OFF Switch (Warmers) ............................................................................ 11
Tank Heater .................................................................................................. 12
Thermal Cut-Off (VPRA - VPSA) ................................................................... 13
Warmer Elements.......................................................................................... 14
Wiring Diagrams ........................................................................................... 15
Page 3
41667 102708
TROUBLESHOOTING
A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems
encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic
Technical Service Department.
• Inspection,testing,andrepairofelectricalequipmentshouldbeperformedonlybyqualiedserviceperson-
nel.
• Thisbrewerisheatedatalltimes.Keepawayfromcombustibles.
WARNING – • Exerciseextremecautionwhenservicingelectricalequipment.
• Unplugthebrewerwhenservicing,exceptwhenelectricaltestsarespecied.
• Followrecommendedserviceprocedures
• Replaceallprotectiveshieldsorsafetynotices
PROBLEM
Water is not hot
Spitting or excessive steaming
PROBABLE CAUSE
1. Limit Thermostat or Thermal
Cut-Off
CAUTION - Do not eliminate or
bypass limit thermostat/thermal
cut-off. Use only BOM replacement part.
2. Control Thermostat
3. Tank Heater
1. Lime Build-up
CAUTION - Tank and tank components should be delimed
regularly depending on local
water conditions. Excessive mineral build-up on stainless steel
surfaces can initiate corrosive
reactions resulting in serious
leaks.
REMEDY
Refer to Service - Limit Thermostat or Thermal Cut-Off for
testing procedures. See page 10
or 13
Refer to Service - Control Thermostat for testing procedures.
See page 9
Refer to Service - Tank Heater for
testing procedures. See page 12
Inspect the tank assembly for
excessive lime deposits. Delime
as required.
2. Control Thermostat
Page 4
Refer to Service - Control Thermostat for testing procedures.
Inspect the tank assembly for
excessive lime deposits. Delime
as required.
41667 102708
TROUBLESHOOTING (cont.)
PROBLEM
Dripping from sprayhead
Beverage overflows dispenser
Weak beverage
PROBABLE CAUSE
1. Lime Build-up
CAUTION - Tank and tank components should be delimed
regularly depending on local
water conditions. Excessive mineral build-up on stainless steel
surfaces can initiate corrosive
reactions resulting in serious
leaks.
1. Dispenser
1. Filter Type
2. Coffee Grind
REMEDY
Excessive lime deposits. Delime
as required.
The dispenser must be completely empty before starting a
brew cycle.
BUNN® paper filters must be used
for proper extraction.
A fine or drip grind must be used
for proper extraction.
3. Sprayhead
4. Funnel Loading
5. Water Temperature
A six-hole stainless steel sprayhead must be used for proper
extraction.
The BUNN® paper filter must be
centered in the funnel and the
bed of grounds leveled by gentle
shaking.
Place an empty funnel on an empty
dispenser beneath the sprayhead.
Pour-in a pitcher of tap water and
check the water temperature immediately below the sprayhead
with a thermometer. The reading
should not be less than 195°F.
Adjust the control thermostat to
increase the water temperature.
Replace if necessary.
Page 5
41667 102708
TROUBLESHOOTING (cont.)
PROBLEM
Dry coffee grounds remain in
the funnel
Brewer is making unusal noises
Cool beverage serving temperature
PROBABLE CAUSE
1. Funnel Loading
2. Sprayhead plugged
1. Tank Heater
1. ON/OFF Warmer Switch
2. Warmer Element(s)
REMEDY
The BUNN® paper filter must be
centered in the funnel and the
bed of grounds leveled by gently
shaking.
Clean/verify that sprayhead holes
are not plugged.
Clean lime off the tank heater.
Refer to Service - ON/OFF
Warmer Switch for testing procedures.
Refer to Service - Warmer
Element(s) for testing procedures.
Page 6
41667 102708
SERVICE
This section provides procedures for testing
and replacing various major components used in
this brewer should service become necessary. Refer
to Troubleshooting for assistance in determining the
cause of any problem.
WARNING - Inspection, testing, and repair of electri-
cal equipment should be performed only by qualified
service personnel. The brewer should be disconnected
from the power source when servicing, except when
electrical tests are required and the test procedure
specifically states to plug-in the brewer.
COMPONENT ACCESS
WARNING - Disconnect the brewer from the power
source before the removal of any panel or the replace-
ment of any component.
The tank inlet fitting secures the fill basin to the
tank lid. Basin wrench 01060.0000 shown.
All components are accessible by the removal of
the top cover, fill basin and warmer assemblies.
The top cover is attached with two #4-40
screws.
FIG. 7-2 COMPONENT ACCESS
FIG. 7-1 FILL BASIN REMOVAL
P3447.70
Page 7
41667 102708
SERVICE (cont.)
CONTROL THERMOSTAT
FIG. 8-1 CONTROL THERMOSTAT
Location:
The control thermostat is located inside the
hood.
Test Procedures:
1. Disconnect the brewer from the power source.
2. Locate the black wire on the control thermo-
stat.
3. Check the voltage across the black wire on the
control thermostat and the white wire on the
tank heater or the red wire on the tank heater
with a voltmeter. Plug-in the brewer to the power
source. The indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 220 volts ac for two wire 220 volt models.
4. Disconnect the brewer from the power source.
voltmeter when the control thermostat is turned
"ON" (fully clockwise). Plug-in the brewer to the
power source. The indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 220 volts ac for two wire 220 volt models.
Voltage must not be present across these terminals
when the thermostat is turned "OFF" (fully counterclockwise).
8. Disconnect the brewer from the power source.
If voltage is present as described, reinstall the capillary
tube into the tank to the line 4.5" above the bulb, the
control thermostat is operating properly.
If voltage is not present as described, replace the
thermostat.
Alternate Test Procedure:
1. Disconnect the brewer from the power source.
2. Remove leads from control thermostat termi-
nals.
3. Gently remove the capillary bulb and grommet
from the tank.
4. Check for continuity across the control thermostat
terminals. The indication must be:
a) Continuity "ON" (fully clockwise).
b) No continuity "OFF" (fully counterclockwise).
If continuity is not as described, replace the thermostat.
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 harness.
5. Locate the blue/black wire on the control thermostat.
6. Gently remove the capillary bulb and grommet
from the tank.
7. Check the voltage across the blue/black wire of
the control thermostat and the white wire on the
tank heater or red wire on the tank heater with a
Page 8
FIG. 8-2 CONTROL THERMOSTAT TERMINALS
41667 102708
SERVICE (cont.)
CONTROL THERMOSTAT (cont.)
Removal and Replacement:
1. Remove leads from control thermostat terminals.
2. Remove the thermostat capillary bulb by firmly
pulling-up on the capillary at the tank lid. This
will disengage the grommet from the tank lid.
3. Remove the two #6-32 screws securing the control
thermostat to the mounting bracket inside the
hood. EARLY MODELS: Remove the two #8-32
screws securing the control thermostat/bracket
assembly to the tank lid bracket.
4. Slide the grommet to the line 4.5" above the bulb
on the new capillary tube.
5. Insert the capillary bulb through the hole in the
tank lid and press the grommet firmly and evenly
so that the groove in the grommet fits into the
tank lid.
6. Carefully bend the capillary tube so that the tube
and bulb inside the tank are in the vertical position.
NOTE - The capillary tube must be clear of any electri-
cal termination and not kinked.
7. Secure the control thermostat to the mounting
bracket.
8. Adjust the control thermostat as required
FIG. 9-1 CONTROL THERMOSTAT EARLY MODELS
Page 9
41667 102708
LIMIT THERMOSTAT - VPR, VPS
FIG. 10-1 LIMIT THERMOSTAT
Location:
The limit thermostat is located inside the hood on
the right side of the tank lid.
Test Procedures:
1. Disconnect the brewer from the power source.
2. Disconnect the blue/black and black wires from
the limit thermostat.
3. Check for continuity across the limit thermostat
terminals with an ohmmeter.
FIG. 10-2 LIMIT THERMOSTAT TERMINALS
If continuity is present as described, the limit thermostat
is operating properly.
If continuity is not present as described, replace the
limit thermostat.
Removal and Replacement:
1. Remove all wires from limit thermostat terminals.
2. Carefully slide the limit thermostat out from under
the retaining clip and remove limit thermostat.
3. Carefully slide the new limit thermostat into the
retaining clip.
4. Refer to wiring diagram when reconnecting the
wires.
Page 10
41667 102708
SERVICE (cont.)
ON/OFF WARMER SWITCH
a) 120 volts ac for two wire 120 volt models.
b) 220 volts ac for two wire 220 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 harness.
5. Remove both wires from the switch and check for
continuity across the terminals with the switch in
the "ON" position. Continuity must not be present
when the switch is in the "OFF" position.
If continuity is present as described, reconnect the
wires to the terminals.
If continuity is not present as described, replace the
switch.
VPS
VPR
FIG. 11-1 ON/OFF WARMER SWITCHES
Location:
The ON/OFF warmer switches are located on the
front of the hood.
Test Procedure:
1. Disconnect the brewer from the power
source.
2. Viewing the switch from the back locate the black
wire from the switch terminal.
3. With the switch in the "ON" position check the
voltage across the black wire of the switch and
the white wire on the lamp or red wire on the
lamp with a voltmeter. Plug-in the brewer to the
power source. The indication must be:
Page 11
Removal and Replacement:
1. Remove the wires from the switch terminals.
2. Compress the clips inside the hood and gently
push the switch through the opening.
3. Push the new switch into the opening and spread
the clips to hold switch in the hood.
4. Refer to Fig. 11-2 when reconnecting the wires
WHI/RED to Brew Station Warmer
VIO to Upper Warmer
BRN/BLKtoLowerRightWarmer
BLKtoCordset
WHI to Cordset
VPS Models & VPR Models with Lighted switches
BLKtoCordset
WHI/RED to Brew Station Warmer & Lamp
VIO to Upper Warmer & Lamp
BRN/BLKtoLowerRightWarmer&Lamp
VPS Models & VPR Models without Lighted switches
BLKtoCordset
WHI/RED to Brew Station Warmer & Lamp
VIO to Upper Warmer & Lamp
BRN/BLKtoLowerRightWarmer&Lamp
VPRA & VPSA Models
#1
#2
#3
P1131
P1253
FIG. 11-2 ON/OFF WARMER SWITCH TERMINALS
41667 102708
SERVICE (cont.)
TANK HEATER
FIG. 12-1 TANK HEATER
Location:
The tank heater is located inside the tank
and secured to the tank lid.
Test Procedures:
1. Disconnect the brewer from the power supply.
2. Check the voltage across the black and white
wires on 120 volt models or the black and red
wires for 220 volt models with a voltmeter. Plug
the brewer into the power source. The indication
must be:
a) *120 volts ac for 120 volt models.
b) *220 volts ac for 220 volt models.
(* Control thermostat must be turned on)
3. Disconnect the brewer from the power source.
If voltage is present as described, proceed to #4
If voltage is not present as described, refer to the Wir-
ing Diagrams and check wiring harness.
4. Disconnect the wires from the heater terminals.
5. Check for resistance across the tank heater terminals.
a) 11 ohms (±10%) for 120 volt models.
b) 26 ohms (±10%) for 220 volt models.
c) Infinite resistance between either terminal to
the housing for all models. Any resistance reading
to housing indicates heater is cracked allowing
water to short the circuit and must be replaced.
If resistance is present as described, reconnect the
wires, the tank heater is operating properly.
If resistance is not present as described, replace the
tank heater.
Removal and Replacement:
1. Remove the tank inlet fitting securing the fill
basin to the tank lid, remove fill basin and tank
inlet gasket. Set all three parts aside for reassembly.
2. Disconnect the black wire on the terminal block
from the tank heater and disconnect the blue/
black wire from the limit thermostat or thermal
cut-off to the control thermostat.
3. Disconnect the black wire and the white or red
wire from the tank heater terminals.
4. Remove sprayhead and the hex nut securing
the sprayhead tube to the hood. Set aside for
reassembly.
5. Remove the eight #8-32 nuts securing the tank
lid to the tank.
6. Remove the tank lid with limit thermostat or thermal cut-off, sprayhead tube and tank heater.
7 Remove the two hex nuts securing the tank heater
to the tank lid. Remove tank heater with gaskets
and discard.
8. Install new tank heater with gaskets on the tank
lid and secure with two hex nuts.
9. Install tank lid with limit thermostat or thermal
cut-off, sprayhead tube and tank heater using
eight #8-32 hex nuts.
10. Secure sprayhead tube to hood using a hex
nut.
11. Install sprayhead.
12. Reconnect the wires to the limit thermostat or
thermal cut-off, tank heater and control thermostat. See limit thermostat, thermal cut-off and
control thermostat sections in this manual when
reconnecting wires.
13. Install fill basin, secure with tank inlet fitting and
gasket.
14. Refer to wiring diagram when reconnecting the
tank heater wires.
Page 12
41667 102708
SERVICE (cont.)
THERMAL CUT-OFF - VPRA, VPSA
thermal cut-off.
Removal and Replacement:
1. Disconnect the thermal cut-off from the tank
heater and the red wire from the power connector or the blue/black wire from the control
thermostat.
2. Install new thermal cut-off.
3. Refer to Fig. 13-2 when reconnecting wires.
FIG. 13-1 THERMAL CUT-OFF
P3448
Location:
The thermal cut-outs are located inside the hood
connected to the tank heater terminals.
Test Procedures:
1. Disconnect the brewer from the power source.
2. Disconnect the thermal cut-off from the tank
heater and the red wire from the power connector.
3. Check for continuity across the thermal cut-off
terminals with an ohmmeter.
If continuity is present as described, the thermal cutoff is operating properly.
If continuity is not present as described, replace the
thermal cut-off.
4. Disconnect the thermal cut-off from the tank
heater and blue/black from the control thermostat.
5. Check for continuity across the thermal cut-off
terminals with an ohmmeter.
FIG. 13-2 THERMAL CUT-OFF TERMINALS
P1269
If continuity is present as decribed, the thermal cut-off
is operating properly.
If continuity is not present as described, replace the
Page 13
41667 102708
To reduce the risk of electric shock,
do not remove or open cover.
No user-serviceable parts inside.
Authorized service personnel only.
Disconnect power before servicing.
SERVICE (cont.)
WHI to WHI Lead on Power Cord
(120V Brewers)
RED to Power Connector
(220V Brewers)
WHI/RED,VIOorBRN/BLK
to ON/OFF Switch
WARMER ELEMENTS
FIG. 14-1 WARMER ELEMENT
P3447
5. Remove both wires from the warmer element and
check the continuity across the two terminals on the
warmer element.
If continuity is present as described, reconnect the
wires on the warmer element.
If continuity is not present as described, replace the
warmer element.
Removal and Replacement:
1. Remove the three #4-40 screws securing the
warmer assembly to the brewer.
2. Lift the warmer assembly from the brewer.
3. Disconnect the two wires from the warmer element
terminals.
4. Remove the two #8-32 nuts securing the warmer
element to the warmer plate.
5. Securely install new warmer element.
6. Reconnect the two wires to warmer element terminals.
7. Securely install warmer assembly on the brewer.
8. Refer to Fig. 14-2 when reconnecting the wires.
Location:
The warmer elements are located under the warmer
plates.
Test Procedures:
1. Disconnect the brewer from the power source.
2. Use the white to the power cord or red wire to
the power connector and the white/red, violet or
brown/black wire on the "ON/OFF" switch.
3. Check voltage across the white or red and white/
red, violet or brown/black with a voltmeter with
the "ON/OFF" switch in the "ON" position. Plug-in
the brewer to the power source. The indication
must be:
a) 120 volts ac for two wire 120 volt models.
b) 220 volts ac for two wire 220 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 wiring
diagrams and check brewer wiring harness.
P1255
FIG. 14-2 WARMER ELEMENT TERMINALS
Page 14
41667 102708
L1
BLK
TANK HEATER
WHI
LOWER WARMER
"KEEP WARM" HEATER
WHI
1320W
BLK
SCHEMATIC WIRING DIAGRAM VPR
GREEN
N
WHI
WHI
WHI
BLK
10050.0000D 1/97 © 1988 BUNN-O-MATIC CORPORATION
UPPER WARMER
WHI
WHI
BLK
120 VOLTS A C
2 WIRE
SINGLE PHASE
60 HZ
WHI/RED
WHI/RED
VIO
VIO
100W
100W
50W
LIMIT
THERMOSTAT
BLU/BLK
SW. & THERMOSTAT
ON/OFF
SWITCH
ON/OFF
SWITCH
IND
IND
L1
BLK
TANK HEATER
WHI
LOWER WARMER
"KEEP WARM" HEATER
WHI
BLK
SCHEMATIC WIRING DIAGRAM
VPR, VPR TC & VPR APS
GREEN
N
WHI
WHI
BLK
33769.0000D 03/07 © 2001 BUNN-O-MATIC CORPORATION
UPPER WARMER
WHI
BLK
120 VOLTS A C
2 WIRE + GND
SINGLE PHASE
60 HZ
WHI/RED
VIO
LIMIT
THERMOSTAT
BLU/BLK
SW. & THERMOSTAT
ON/OFF
SWITCH
ON/OFF
SWITCH
WHI
WHI
MODEL VPR ONLY
(Models without Lighted switches)
(Models with Lighted switches)
Page 15
41667 102708
LIMIT
THERMOSTAT
L1
BLK WHI
WHI
BLK
SCHEMATIC WIRING DIAGRAM VPS
GREEN
BLU/BLK
SW. & THERMOSTAT
N
WHI
120 VOLTS A C
2 WIRE
SINGLE PHASE
60 HZ
10049.0000C 1/97 © 1988 BUNN-O-MATIC CORPORATION
TANK HEATER
LOWER RIGHT WARMER
BRN/BLK
BRN/BLK
LOWER LEFT WARMER
WHI
WHI
BLK
UPPER WARMER
WHI
WHI
BLK
WHI/RED
WHI/RED
VIO
VIO
100W
50W
1320W
100W
ON/OFF
SWITCH
ON/OFF
SWITCH
IND
IND
WHI
WHI
BLK
100W
ON/OFF
SWITCH
IND
"KEEP WARM" HEATER
LIMIT
THERMOSTAT
L1
BLK WHI
LOWER LEFT WARMER
"KEEP WARM" HEATER
WHI
BLK
SC
HEMATIC WIRING DIAGRAM VPS
GREEN
BLU/BLK
SW. & THERMOSTAT
N
WHI
WHI
WHI BLK
120 VOLTS A C
2 WIRE
SINGLE PHASE
60 HZ
10049.0001A 08/04 © 2004 BUNN-O-MATIC CORPORATION
WHI
WHI
UPPER WARMER
TANK HEATER
WHI
WHI
BLK
LOWER RIGHT WARMER
WHI/RED
VIO
BRN/BLK
ON/OFF
SWITCH
ON/OFF
SWITCH
ON/OFF
SWITCH
BLK
(Models without Lighted switches)
(Models with Lighted switches)
Page 16
41667 102708
SW. & THERMOSTAT
L1
LOWER WARMER
"KEEP WARM" HEATER
WHI
1850W
100W
BLK
SCHEMATIC WIRING DIAGRAM
VPRA
GRN/YEL
BLU/BLK
L2
WHI
BLK
10096.0000E 1/97 ©1988 BUNN-O-MATIC CORPORATION
RED
UPPER WARMER
100W
BLK
IND
IND
IND
BLK
220 VOLTS A C
2 WIRE
SINGLE PHASE
TANK HEATER
50W
RED
RED
RED
RED
RED
THERMAL
CUT-OFF
THERMAL
CUT-OFF
ON/OFF
SWITCH
ON/OFF
SWITCH
WHI/RED
WHI/RED
VIO
VIO
SW. & THERMOSTAT
L1
LOWER LEFT WARMER
"KEEP WARM" HEATER
WHI
1850W
100W
BLK
SCHEMATIC WIRING DIAGRAM
VPSA
GRN/YEL
BLU/BLK
L2
WHI
BLK
10095.0000E 1/97 ©1988 BUNN-O-MATIC CORPORATION
RED
UPPER WARMER
100W
BLK
IND
IND
IND
LOWER RIGHT WARMER
100W
BLK
IND
BLK
220 VOLTS A C
2 WIRE
SINGLE PHASE
TANK HEATER
50W
RED
RED
RED
RED
RED
RED
RED
THERMAL
CUT-OFF
THERMAL
CUT-OFF
ON/OFF
SWITCH
ON/OFF
SWITCH
ON/OFF
SWITCH
WHI/RED
WHI/RED
VIO
VIO
BRN/BLK
BRN/BLK
Page 17
41667 102708
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