BUNN ® LY OYN TERNL WAR O INATE UR W PO IN UR PO VPR VPS OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION OF CANADA LTD. 280 INDUSTRIAL PKWY. S. AURORA, ONTARIO L4G 3T9 PHONE: (905) 841-2866 FAX: (905) 841-2775 10053.7000J 11/01 ©1996 Bunn-O-Matic Corporation www.bunnomatic.
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.
USER NOTICES Carefully read and follow all notices in this manual and on the equipment. All labels on the equipment should be kept in good condition. Replace any unreadable or damaged labels. #00831.0002 #00658.7000 #12364.7000 #00833.
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. “A" models require 2-wire, grounded service rated 220 - 240 volts ac, single phase, 50 Hz. Proceed as follows: Electrical Hook-Up (Model "A" Only) CAUTION – Improper electrical installation will damage electronic components. 1.
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. This brewer is heated at all times. Keep away from combustibles.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dripping from sprayhead 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. Inspect the tank assembly for excessive lime deposits. Delime as required. Beverage overflows dispenser 1. Dispenser The dispenser must be completely empty before starting a brew cycle.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dry coffee grounds remain in the funnel 1. Funnel Loading The BUNN® paper filter must be centered in the funnel and the bed of grounds leveled by gently shaking. Brewer is making unusal noises 1. Tank Heater Remove and clean lime off the tank heater. See page 12 Cool beverage serving temperature 1. ON/OFF Warmer Switch Refer to Service - ON/OFF Warmer Switch for testing procedures. See page 11 2.
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. The tank inlet fitting secures the fill basin to the tank lid. WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.
SERVICE (cont.) "ON" (fully counterclockwise for thermostat with tee handle control or fully clockwise for thermostats with control knob). 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.
SERVICE (cont.) CONTROL THERMOSTAT (cont.) 2. 3. 4. 5. 6. 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. Remove the two #8-32 screws securing the control thermostat to the mounting bracket inside the hood. Slide the grommet to the line 4.5" above the bulb on the new capillary tube.
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SERVICE (cont.) If continuity is present as described, reconnect the wires, the tank heater is operating properly. If continuity is not present as described, replace the tank heater. TANK HEATER NOTE- If the tank heater remains unable to heat, remove and inspect heater for cracks in the sheath. P2414 FIG. 9 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.
SERVICE (cont.) TANK HEATER (Cont.) Location: The thermal cut-outs are located inside the hood connected to the tank heater terminals. BLK to Limit Thermostat (120V Models) Thermal Cut-off to Blu/BLK Lead From Control Thermostat (220V Two Wire Models) 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.
SERVICE (cont.) WARMER ELEMENTS WHI /RED, VIO or BRN/BLK to ON/OFF Switch WHI to WHI Lead on Power Cord (120V Brewers) RED to Power Connector (220V Brewers) FIG.
SCHEMATIC WIRING DIAGRAM VPR (Prior to Serial # VPR0270000) GREEN L1 SW. & THERMOSTAT BLK LIMIT THERMOSTAT BLU/BLK BLK 1150W N WHI TANK HEATER ON/OFF SWITCH IND WHI WHI/RED 100W WHI/RED BLK ON/OFF SWITCH BLK IND VIO WHI LOWER WARMER 100W VIO WHI WHI UPPER WARMER 120 VOLTS A C 2 WIRE SINGLE PHASE 60 HZ 10050.
SCHEMATIC WIRING DIAGRAM VPS GREEN L1 SW. & THERMOSTAT BLK LIMIT THERMOSTAT BLU/BLK BLK N 1150W WHI TANK HEATER IND ON/OFF SWITCH WHI/RED WHI 100W WHI/RED BLK IND ON/OFF SWITCH VIO LOWER LEFT WARMER WHI 100W VIO BLK IND ON/OFF SWITCH WHI WHI UPPER WARMER BRN/BLK WHI 100W BRN/BLK BLK WHI LOWER RIGHT WARMER 120 VOLTS A C 2 WIRE SINGLE PHASE 60 HZ 10049.0000C 1/97 © 1988 BUNN-O-MATIC CORPORATION SCHEMATIC WIRING DIAGRAM VPRA GRN/YEL L1 L2 IND BLK RED THERMAL CUT-OFF SW.
SCHEMATIC WIRING DIAGRAM VPSA GRN/YEL L1 L2 IND BLK RED THERMAL CUT-OFF SW.