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®
VP17
BUNN
VP17B
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
www.bunnomatic.com
10860.0000 12/01 ©1996 Bunn-O-Matic Corporation
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INTRODUCTION This equipment will brew a half-gallon batch of coffee into an awaiting dispenser. It is only for indoor use on a sturdy counter or shelf. WARRANTY Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition: 1.) Bunn warrants electronic circuit and/or control boards to be commercially free from defe
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USER NOTICES (cont.) # 00831.0000 # 00658.0000 CAUTION WARMERS AND SURFACES ARE HOT #02763.0000 POUR IN WATER ONLY 10860 090800 Page 3
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ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up. The brewer has an attached cordset and requires 2-wire grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz. "B" models require 2-wire, WHITE grounded service rated 100 volts NEUTRAL 100V.A.C. ac, 20 amp, single phase, 50 Hz. Proceed as follows: L1 BLACK P2185 Electrical Hook-Up (Model "B" Only) CAUTION – Improper electrical installation will damage electronic c
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COFFEE BREWING ® 1. Insert a BUNN filter into the funnel. 2. Pour the fresh coffee into the filter and level the bed of grounds by gently shaking. 3. Slide the funnel into the funnel rails. 4. Place an empty dispenser beneath the funnel. 5. Pour one pitcher of tap water into the screened area on top of the brewer. 6. When brewing is completed, simply discard the grounds and filter. CLEANING 1. The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning
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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, and repair of electrical equipment should be performed only by qualified service personnel. • All electronic components have 120 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the appl
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water is not hot (cont.) 4. Tank Heater Refer to Service - Tank Heater for testing procedures. See page 13 Inconsistent beverage level in dis- 1. Syphon System The brewer must be level or slightly penser lower in front to syphon properly. 2. Lime Build-up Inspect the tank assembly for ex- CAUTION - Tank and tank compo- cessive lime deposits. Delime as nents should be delimed regularly required. depending on local water condi- tions. Excessive
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Beverage overflows dispenser 1. Dispenser The dispenser must be completely empty before starting a brew cycle. ® Weak beverage 1. Filter Type BUNN paper filters must be used for proper extraction. 2. Coffee Grind A fine or drip grind must be used for proper extraction. 3. Sprayhead A six-hole stainless steel spray- head must be used for proper extraction. ® 4. Funnel Loading The BUNN paper filter must be centered in the funnel and the bed of
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SERVICE Contents This section provides procedures for testing and Control Thermostat............................................ 10 replacing various major components used in this Limit Thermostat ............................................... 11 brewer should service become necessary. Refer to ON/OFF Switch................................................... 12 Troubleshooting for assistance in determining the Tank Heater ....................................................... 13 cause of any
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SERVICE (cont.) 6. Voltage must not be present when the thermostat CONTROL THERMOSTAT is turned to the "OFF" position. 7. 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. Removal and Replacement: 1. Remove wires from control thermostat leads. 2. Remove the thermostat capillary bulb
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SERVICE (cont.) Removal and Replacement: LIMIT THERMOSTAT 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 Fig. 5 when reconnecting the wires. BLU to BLU Lead from P1161.40 Control Thermostat FIG. 4 LIMIT THERMOSTAT Location: The limit thermostat is located inside the rear of the hood on the tank lid. BLK to Te
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SERVICE (cont.) If voltage is not present as described, refer to the ON/OFF WARMER SWITCH Wiring Diagrams and check the brewer wiring har- ness. 5. With the black wire removed, remove the wire from the lower terminal. 6. Check for continuity across the center and lower terminal with the switch in the "ON" (upper) posi- tion. Continuity must not be present when the switch is in the "OFF" (lower) position. ONE LOWER WARMER If continuity is present as described, reconnect the black wire to the cent
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SERVICE (cont.) 2. Disconnect the black wire on the limit thermostat from the tank heater switch and disconnect the TANK HEATER blue wire from the limit thermostat to the control thermostat. 3. Disconnect the black wire and the white wire from the tank heater terminals. 4. Remove sprayhead and the hex nut securing the sprayhead tube to the hood. Set aside for reas- sembly. 5. Remove the eight #8-32 nuts securing the tank lid to the tank. 6. Remove the tank lid with limit thermostat, spray- he
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SERVICE (cont.) If voltage is present as described, proceed to #5. TANK HEATER SWITCH (VP17B and early model If voltage is not present as described, refer to the VP17) Wiring Diagrams and check the brewer wiring har- ness. 5. Check for continuity between the black wire re- moved from the limit thermostat and the black insert on the terminal block, with the tank heater switch in the "ON" (upper) position. Continuity should not be present in the "OFF" (lower) position. If continuity is present as
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SERVICE (cont.) TANK HEATER SWITCH (cont.) 13. Set tank assembly inside the hood on mounting brackets and secure with two #8-32 screws. 14. Reconnect the wires to the limit thermostat, tank heater and the control thermostat. Refer to Limit Thermostat, Tank Heater and Control Thermostat sections in this manual when reconnecting wires. 15. Secure the sprayhead tube to the hood using hex BLK to Limit nut. Thermostat 16. Install sprayhead. BLK to Terminal 17. Install fill basin, inlet gasket and se
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SERVICE (cont.) WARMER ELEMENT(S) 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 ele- ment 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 termi- nals. 7. Secu
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SCHEMATIC WIRING DIAGRAM VP17-1/-2/-3 L1 N GRN SW. & THERMOSTAT LIMIT THERMOSTAT TANK HEATER BLK BLU BLK WHI 1320W 50W WHI WHI ON/OFF SWITCH "KEEP WARM" HEATER WHI 100W BLK WHI/RED WHI LOWER WARMER VP17-2 TOP WARMER ASSY WHI P3 P1 100W BLK VIO VIO WHI WHI REAR WARMER ON/OFF SWITCH VP17-3 DUAL SIDE WARMER ASSY WHI P2 100W BLK BRN/BLK BRN/BLK P1 FRONT WARMER WHI WHI ON/OFF SWITCH WHI P3 100W BLK VIO VIO REAR WARMER ON/OFF SWITCH 120 VOLTS AC 2 WIRE SINGLE PHASE 10862.0003F 9/97 ©1997 BU
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SCHEMATIC WIRING DIAGRAM VP17-1/-2/-3 L1 N READY INDICATOR GRN BLU BLK HEATER SW. & THERMOSTAT LIMIT SWITCH THERMOSTAT TANK HEATER BLK BLK BLK BLU BLK WHI WHI WHI ON/OFF SWITCH "KEEP WARM" HEATER WHI BLK WHI/RED WHI LOWER WARMER 1 TOP WARMER WHI P3 P1 BLK VIO VIO WHI WHI REAR WARMER ON/OFF SWITCH 2 TOP or SIDE WARMERS WHI P2 BLK BRN/BLK BRN/BLK P1 FRONT WARMER WHI WHI ON/OFF SWITCH WHI P3 BLK VIO VIO REAR WARMER ON/OFF SWITCH AUXILIARY OUTLET (NOT AVAILABLE ON VP17-3) BLK WHI GRN 120 VOLTS
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SCHEMATIC WIRING DIAGRAM VP17B-1/-2/-3 L1 N READY INDICATOR GRN BLU BLK HEATER SW. & THERMOSTAT LIMIT SWITCH THERMOSTAT TANK HEATER BLK BLK BLK BLU BLK WHI WHI WHI ON/OFF SWITCH "KEEP WARM" HEATER WHI BLK WHI/RED WHI LOWER WARMER 1 TOP WARMER WHI P3 P1 BLK VIO VIO WHI WHI REAR WARMER ON/OFF SWITCH 2 TOP or SIDE WARMERS WHI P2 BLK BRN/BLK BRN/BLK P1 WHI WHI FRONT WARMER ON/OFF SWITCH WHI P3 BLK VIO VIO REAR WARMER ON/OFF SWITCH AUXILIARY OUTLET (NOT AVAILABLE ON VP17B-3) BLK WHI GRN 100 VOL
