Bunn CWT-APS-DV Operating & Service Manual

Bunn CWT-APS-DV Operating & Service Manual

Bunn cwt-aps-dv: user guide

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CWT -DV, CWT APS-DV,
CWTF-DV, CWTF APS-DV
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
36102.0000A 09/03 ©2003 Bunn-O-Matic Corporation

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Summary of Contents for Bunn CWT-APS-DV

  • Page 1 CWT -DV, CWT APS-DV, CWTF-DV, CWTF APS-DV 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 36102.0000A 09/03 ©2003 Bunn-O-Matic Corporation...
  • Page 2 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.
  • Page 3 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. #12364.0000 #00658.0000 #00831.0000 #02765.0000 Optional Field Wiring Optional Field Wiring 120/208-240 V, 13.0-14.8 A, 2540-3300 W 120/208-240 V, 11.4-13.1 A, 2340-3100 W 1PH, 3-Wire, 60HZ...
  • Page 4 USER NOTICES (CONT.) Optional Field Wiring Optional Field Wiring 120/208-240 V, 12.25-13.9 A, 2440-3200 W 120/208-240 V, 13.9-15.6 A, 2640-3400 W 1PH, 3-Wire, 60HZ 1PH, 3-Wire, 60HZ #34955.0001 #34955.0003 ONE WARMER MODELS THREE WARMER BREWERS 120V 120/208-240V #00656.0000 #34056.0000 VOLTAGE SELECTOR SWITCH 36102 090203 Page 4...
  • Page 5 Models CWTF-DV & CWTF-APS DV ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up. Requirements for brewers without an attached cord set are as follows: 120V VERSION Requires 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz.
  • Page 6 " water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer to clean the countertop. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow.
  • Page 7 CAUTION - The brewer must be disconnected from the power source throughout the initial set-up, except when specified in the instructions. 1. Insert an empty funnel into the funnel rails. 2. Place an empty dispenser under the funnel. 3. Place the heater switch at the rear of the brewer in the "OFF" (lower) position and connect the brewer to the power source.
  • Page 8: Cleaning

    Momentarily pressing and releasing the switch starts a brew cycle when the "ON/OFF" switch is in the "ON" (upper) position. NOTE – The "ON/OFF" switch must be in the "ON" (upper) position to initiate and complete a brew cycle. 1. Insert a BUNN ® filter into the funnel.
  • Page 9 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.
  • Page 10 TROUBLESHOOTING (cont.) PROBLEM Brew cycle will not start (cont.) Water is not hot PROBABLE CAUSE 5. Timer 6. Solenoid Valve 7. Water strainer/flow control (.222 GPM) 1. Tank Heater Switch 2. Limit Thermostat CAUTION - Do not eliminate or bypass limit thermostat. Use only replacement part #29329.1000 3.
  • Page 11 TROUBLESHOOTING (cont.) PROBLEM Inconsistent beverage level in dispenser Consistently low beverage level in the dispenser Spitting or excessive steaming PROBABLE CAUSE 1. Strainer/flow control (.222 GPM) 2. Syphon System 3. Lime Build-up CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi- tions.
  • Page 12 TROUBLESHOOTING (cont.) PROBLEM Spitting or excessive steaming (cont.) Dripping from sprayhead Water flows into tank continuously (ON/OFF Switch "ON") Water flows into tank continuously (ON/OFF Switch "OFF") Beverage overflows dispenser PROBABLE CAUSE 2. Control Thermostat 1. Syphon System 2. Lime Build-up CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water condi-...
  • Page 13 A fine or drip grind must be used for proper extraction. A clean spray-head must be used for proper extraction. ® The BUNN paper filter must be centered in the funnel and the bed of ground leveled by gentle shak- ing.
  • Page 14 TROUBLESHOOTING (cont.) PROBLEM Brewer is making unusual noises (cont.) Low beverage serving tempera- ture (CWTF Only) PROBABLE CAUSE 4. Tank Heater(s) 1. Warmer Page 14 REMEDY Remove and clean lime off the tank heater(s). See page 20 Refer to Service - Warmer ele- ment for testing procedures.
  • Page 15: Table Of 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 electri- cal equipment should be performed only by qualified service personnel.
  • Page 16: Control Thermostat

    SERVICE (cont.) CONTROL THERMOSTAT FIG. 2 CONTROL THERMOSTAT Location: The control thermostat is located inside the trunk on the upper left side of the component bracket. Test Procedures: 1. Disconnect the brewer from the power source. 2. Locate the blue wire on the control thermostat. 3.
  • Page 17: Limit Thermostat

    SERVICE (cont.) LIMIT THERMOSTAT FIG. 4 LIMIT THERMOSTAT Location: The limit thermostat is located inside the rear of the hood on the center rear of the tank lid. Test Procedures: 1. Disconnect the brewer from the power source. 2. Disconnect the blue and black wires from the limit thermostat.
  • Page 18: On/Off Switch

    SERVICE (cont.) ON/OFF SWITCHES FIG. 6 ON/OFF SWITCHES Location: The ON/OFF 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 remove the white wire from the upper terminal and the black wire from the center terminal.
  • Page 19: Solenoid Valve (Inlet)

    SERVICE (cont.) SOLENOID VALVE FIG. 8 SOLENOID VALVE Location: The solenoid valve is located inside the trunk on the lower center part of the component bracket. Test Procedures: 1. Disconnect the brewer from the power source. 2. Disconnect both wires from the solenoid valve. Connect the brewer to the power source.
  • Page 20: Start Switch (Brew)

    SERVICE (cont.) START SWITCH FIG.10 START SWITCH Location: The start switch is located on the front of the hood in the center of switch panel. Test Procedure: 1. Disconnect the brewer from the power supply. 2. Disconnect the blue wire from the top switch terminal and the white/red wire from the bottom switch terminal.
  • Page 21: Tank Heater(S)

    SERVICE (cont.) TANK HEATERS FIG. 12 TANK HEATERS Location: The tank heaters are located inside the tank and secured to the tank lid. Test Procedures: With Voltage selector switch set to 120V: 1. Disconnect the brewer from the power supply. 2.
  • Page 22 SERVICE (cont.) TANK HEATERS (cont.) 15. Reconnect the wires to the limit thermostat and tank heaters and control thermostat. See Limit Thermostat and Control Thermostat sections in this manual when reconnecting wires. 16. Install fill basin, secure with tank inlet fitting and gasket.
  • Page 23: Tank Heater Switch

    SERVICE (cont.) TANK HEATER SWITCH FIG. 14 TANK HEATER SWITCH Location: The tank heater switch is located on the rear of the brewer on the upper left side of the trunk. Test Procedure: 1. Disconnect the brewer from the power source. 2.
  • Page 24 SERVICE (cont.) TANK HEATER SWITCH (cont.) 13. Remove the plastic facenut, hex facenut and the switch indicator/guard bracket that secures tank heater switch to the rear of the brewer. Remove switch and discard. 14. Insert new tank heater switch through the hole in the upper left rear of the trunk and secure with switch indicator/guard bracket, hex facenut and plastic facenut.
  • Page 25: Voltage Selector Switch

    SERVICE (cont.) VOLTAGE SELECTOR SWITCH - FIG. 16 VOLTAGE SELECTOR SWITCH Location: The voltage selector switch is located on the component mounting bracket behind the front access panel. Test Procedure: 1. Disconnect the brewer from the power source. 2. Disconnect the white and blue wires from the selector switch.
  • Page 26: Thermal Fuse

    SERVICE (cont.) THERMAL FUSES FIG. 18 THERMAL FUSES Location: The thermal fuse is located inside the rear of the hood connected to the right front tank heater terminal. Test Procedures: 1. Disconnect the brewer from the power source. 2. Disconnect the thermal fuse from the right tank heater terminal black wire lead.
  • Page 27: Digital Timer

    SERVICE (cont.) DIGITAL TIMER FIG. 20 DIGITAL TIMER Location: The timer is located inside the front of the trunk on the upper right side of the component bracket. Test Procedure. NOTE: Do not remove or install wires while timer board is installed.
  • Page 28 SERVICE (cont.) DIGITAL BREW TIMER (cont.) To increase a brew volume, place the ON/OFF switch in the “ON” position, press and hold the START switch until three clicks are heard. Release the switch and press it again one or more times. (Failure to re- lease the switch within two seconds after the third click causes the volume setting to be aborted and pre- vious volume setting will remain in memory.) Each...
  • Page 29: Warmer Element

    SERVICE (cont.) WARMER ELEMENT(S) FIG. 22 WARMER ELEMENTS Location: The warmer elements are located under the warmer plates. Test Procedures: 1. Disconnect the brewer from the power source. 2. With a voltmeter, check voltage across the white wire from the terminal block and the wire from the "ON/OFF"...
  • Page 30: Wiring Diagrams

    SWITCH THERMOSTAT ON/OFF SWITCH WHI/RED 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE 10836.0009A 02/03 ©2003 BUNN-O-MATIC CORPORATION READY INDICATOR (FAUCET OPTION ONLY) THERMAL SW. & THERMOSTAT SAFETY FUSE BLK-14 BLK-14 "KEEP WARM" HEATER...
  • Page 31 SWITCH THERMOSTAT ON/OFF SWITCH WHI/RED 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE 10836.0010A 10/02 ©2001 BUNN-O-MATIC CORPORATION READY INDICATOR THERMAL SAFETY FUSE SW. & THERMOSTAT (Faucet models only) BLK-14 BLK-14 "KEEP WARM" HEATER...

This manual is also suitable for:

Cwtf-dvCwt-dvCwt aps-dvCwtf aps-dv

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