BUNN ® VP17A OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 10860.
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 (cont.) # 00658.0000 #00831.0000 # 02763.0000 Page 3 10860.
ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up. The brewer requires 2-wire, grounded service rated 220 - 240 volts ac, 20 amp, single phase, 50 Hz. An all pole disconnect means must be incorporated in the fixed wiring according to local wiring regulations. Proceed as follows: ELECTRICAL HOOK-UP CAUTION – Improper electrical installation will damage electronic components. 1.
CLEANING 1. The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. 2. Check and clean the sprayhead. The sprayhead holes must always remain open. 3. With the sprayhead removed, insert the deliming spring (provided) all the way into the sprayhead tube. When inserted properly, no more than two inches of spring should be visible. Saw back and forth five or six times.
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 Spitting or excessive steaming 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 tank assembly for excessive lime deposits. Delime as required. 2. Control Thermostat Refer to Service - Control Thermostat for testing procedures. See page 10 1.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Weak beverage (cont.) 4. Funnel Loading The BUNN® paper filter must be centered in the funnel and the bed of grounds leveled by gentle shaking. 5. Water Temperature Place an empty funnel on an empty dispenser beneath the sprayhead. Initiate a brew cycle and check the water temperature immediately below the sprayhead with a thermometer. The reading should not be less than 195°F (91˚C).
Contents 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 electrical equipment should be performed only by qualified service personnel.
SERVICE (cont.) 7. Voltage must not be present when the thermostat is turned to the "OFF" position. CONTROL THERMOSTAT 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. FIG. 2 CONTROL THERMOSTAT P1262 Location: The control thermostat is located inside the trunk on the upper left side of the component bracket. Test Procedures: 1.
SERVICE (cont.) If voltage is present as described, reconnect the red wire and proceed to #5. If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring harness. ON/OFF WARMER SWITCH 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) position. Continuity must not be present when the switch is in the "OFF" (lower) position.
SERVICE (cont.) TANK HEATER FIG. 6 TANK HEATER P1262 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. With a voltmeter, check the voltage across the black and red wire. Connect the brew to the power source. The indication must be 220 to 240 volts ac. 3. Disconnect the brewer from the power source.
SERVICE (cont.) Removal and Replacement: 1. Disconnect the thermal cut-off from the terminal on the black lead from ready light harness and the black lead from the control thermostat or the tank heater terminal and the red lead from the main harness. 2. Remove the white lead from the tank "keep warm" heater from the thermal cut-off terminal. 3. Install new thermal cut-off. 4. Refer to Fig. 9 when reconnecting wires. THERMAL CUT-OFFS BLK Lead BLK Lead from Control Thermostat FIG.
SERVICE (cont.) WARMER ELEMENT(S) wire, and red/white, brown/black or violet 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. Securly install new warmer element. 6.
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