1. Manuals
  2. Brands
  3. Bunn Manuals
  4. Coffee Maker
  5. CDBCF Airpot
  6. Operating & service manual

Bunn CDBCF Airpot Operating & Service Manual

Airpot, thermal carafe & thermal server brewers
Hide thumbs
Table of Contents

Advertisement

Quick Links

DISCONTINUED VERSION
The information in this manual
OPERATING & SERVICE MANUAL
29253.0000F 02/04 ©1999 Bunn-O-Matic Corporation
is no longer current.
N
N
U
B
G
I N
R N
E
R C
W A
O U
R
R S
L O
!
W E
N E
T !
P A
P O
E N
N Y
O N
M
R O
F A
M P
T F
L O
C O
E C
V A
N Y
N N
M O
F A
C O
R E
T O
D IS
R E
E N
F O
E M
B E
A C
P L
R E
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601
Thermal Carafe &
Thermal Server Brewers
FAX: (217) 529-6644
CEZ, CEZF,
CDBC, CDBCF
Airpot,
N
N
U
B
www.bunnomatic.com

Advertisement

Table of Contents
loading

Related Manuals for Bunn CDBCF Airpot

Summary of Contents for Bunn CDBCF Airpot

  • Page 1 The information in this manual is no longer current. D IS OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION PHONE: (217) 529-6601 29253.0000F 02/04 ©1999 Bunn-O-Matic Corporation Thermal Server Brewers POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 FAX: (217) 529-6644 CEZ, CEZF,...

  • Page 2: Table Of Contents

    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. # 00986.0000 # 00656.0000 # 00658.0000 # 10044.0000 USER NOTICES Page 3 29253 011900...

  • Page 4: Electrical & Plumbing Requirements

    " 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 5: Operating Controls

    Model CEZ-APS/TS/TSR BREW SWITCH 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. READY INDICATOR This indicator glows when the preselected brew water temperature has been achieved.

  • Page 6: Initial Set-Up, Coffee Brewing, & Cleaning

    When brewing is completed, simply discard the grounds and filter. 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. Check and clean the sprayhead. The sprayhead holes must always remain open.

  • Page 7: Cez-Aps/Ts/Tsr Adjustments & Optional Settings

    CEZ-APS/TS/TSR ADJUSTMENTS & OPTIONAL SETTINGS Page 7 IMPORTANT: The tank must be full and fill so- lenoid shut off prior to making these adjust- ments. Adjusting Brew Volumes The brewer is factory set to deliver 64 ounces ± 2 for each brew cycle. BREW VOLUME SET-UP: Use the following steps when the setting is unknown or a different circuit board is being installed.

  • Page 8: Cdbc-Aps/Tc/Ts/Tsr Adjustments & Optional Settings

    CDBC-APS/TC/TS/TSR ADJUSTMENTS & OPTIONAL SETTINGS Setting Brew Temperature The brewer is factory set to brew at 200°F(95°C). To change this setting, press and hold the "HIDDEN" switch beneath the "®". The word "TEMP" above the "ON/OFF" switch will glow to correspond with the temporary function change of this switch.

  • Page 9: Water Sensing Threshold Adjustment Procedure

    CDBC-APS/TC/TS/TSR ADJUSTMENTS & OPTIONAL SETTINGS (cont) Water Sensing Threshold Adjustment Procedure 1. Make sure the tank is full of water to be used for calibration. The water must be in contact with the refill probe. 2. Unplug the brewer from the power source, then press and hold the BREW button while power is reapplied. 3.

  • Page 10: 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.
  • Page 11 TROUBLESHOOTING (cont.) REFILL CIRCUIT PROBLEM Will not fill or refill Fill or refill does not shut "OFF" (ON/OFF Switch "ON") PROBABLE CAUSE 1. Power off to brewer (CDBC-APS/ TC/TS/TSR & CEZ-APS/TS/TSR) 2. Water shut off (CDBC-APS/TC/ TS/TSR & CEZ-APS/TS/TSR) 3. Display flashing (CDBC-APS/TC/ TS/TSR) or ready light flashing (CEZ-APS/TS/TSR) 4.
  • Page 12 TROUBLESHOOTING (cont.) REFILL CIRCUIT (cont.) PROBLEM Fill or refill does not shut "OFF" (ON/ OFF Switch "ON") (cont) Fill or refill does not shut "OFF" (ON/ OFF Switch "OFF") PROBABLE CAUSE 2a. Water Level Probe Sensing System (CDBC-APS/TS/TSR) 2b. Water Level Probe Sensing Sys- tem (CEZ-APS/TC/TS/TSR) 3.
  • Page 13 TROUBLESHOOTING (cont.) HEATING CIRCUIT PROBLEM Water does not heat to proper temperature IMPORTANT: Make sure no tem- perature tests are taken before the ready light is "ON". Tank tempera- ture must be stabilized before read- ings are taken. PROBABLE CAUSE 1.
  • Page 14 TROUBLESHOOTING (cont.) HEATING CIRCUIT (cont.) PROBLEM Water does not heat to proper temperature (cont.) IMPORTANT: Make sure no tem- perature tests are taken before the ready light is "ON". Tank tempera- ture must be stabilized before read- ings are taken. Spitting or excessive steaming PROBABLE CAUSE 4a.
  • Page 15 TROUBLESHOOTING (cont.) HEATING CIRCUIT (cont.) PROBLEM Spitting or excessive steaming (cont.) Brewer is making unusual noises PROBABLE CAUSE 2a. Temperature Probe (CDBC-APS/ TC/TS/TSR) 2b. Temperature Probe (CEZ-APS/ TS/TSR) 3. Control Board (CDBC & CEZ) 1. Plumbing lines 2. Water supply 3.
  • Page 16 TROUBLESHOOTING (cont.) BREWING CIRCUIT PROBLEM Brew cycle will not start PROBABLE CAUSE 1. Display flashing (CDBC-APS/TC/ TS/TSR) or ready light flashing (CEZ-APS/TS/TSR) 2. No water 3. No power or incorrect voltage to the brewer 4. ON/OFF switch not in the "ON" position 5.
  • Page 17 TROUBLESHOOTING (cont.) BREWING CIRCUIT (cont.) PROBLEM Brew cycle will not start (cont.) Consistently low beverage level in the dispenser or beverage overflows dispenser PROBABLE CAUSE 8. Control board or dispense valve (CDBC-APS/TC/TS/TSR & CEZ- APS/TS/TSR) 1. Brew volume (CDBC-APS/TC/TS/ TSR & CEZ-APS/TS/TSR) NOTE: All volumes to run with sprayhead attached.
  • Page 18 ® paper filters must be used for proper extraction. A fine drip or grind must be used for proper extraction. The BUNN ® paper filter must be centered in the funnel and the bed of grounds leveled by shaking gen- tly.
  • Page 19 There should be separate streams of water coming out of each hole in the sprayhead. The BUNN ® paper filter must be centered in the funnel and the bed of grounds leveled by shaking gen- tly.
  • Page 20 Intermittent flashing of the READY indicator (Model CEZ) or the bank of temperature indicators (Model CDBC) indicates that a fault exists. Count the number of flashes between pauses and use this chart as a guide to investigating the fault. FLASHES CAUSE Dry Plug - In Fault - Sheath of temperature probe dry for 10 minutes after power-up Low Tank Level Fault -...

  • Page 21: Service

    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 22: Control Board - Cdbc-Aps/Tc/Ts/Tsr

    SERVICE (cont.) CONTROL BOARD - Model CDBC-APS/TC/TS/TSR E FO E OR R ON Y BE S MA D UN R PA E OR FIG. 2 CONTROL BOARD Location: The Control Board is located inside the top cover behind the front end cap. Test Procedures: The test procedures for the control board will vary depending upon the problems experienced by the...

  • Page 23: Control Board - Cez-Aps/Ts/Tsr

    SERVICE (cont.) CONTROL BOARD - Model CEZ-APS/TS/TSR FIG. 3 CONTROL BOARD Location: The Control Board is located inside the trunk behind the front access panel. Test Procedures: The test procedures for the control board will vary depending upon the problems experienced by the brewer.

  • Page 24: Switch Panel - Cdbc-Aps/Tc/Ts/Tsr

    SERVICE (cont.) SWITCH PANEL - Model CDBC-APS/TC/TS/TSR U .S IS , IN O IL L IE L S /N R IN W IN W IR A .C FIG. 4 SWITCH PANEL Location: The Switch Panel is located in the front of the hood.

  • Page 25: On/Off Switch - Cez-Aps/Ts/Tsr

    SERVICE (cont.) ON/OFF SWITCH - Model CEZ-APS/TS/TSR .A . U .S IS , IN O IL L IE L S /N R IN IN G W IR A .C IN G D IS FIG. 5 ON/OFF SWITCH Location: The ON/OFF switch is located on the front of the hood.

  • Page 26: Brew Switch (Start) - Cez-Aps/Ts/Tsr

    SERVICE (cont.) BREW SWITCH (Start) - Model CEZ-APS/TS/TSR .A . U .S IS , IN O IL L IE L S /N R IN IN G W IR A .C IN G D IS FIG. 7 BREW SWITCH Location: The BREW switch is located in the center front of the hood.

  • Page 27: Dispense Valve

    SERVICE (cont.) DISPENSE VALVE S. A. IS , IL LI FI EL S/ N W AT M AN W IR E FO F TH M OD M OR E OR E OT M OR E OR FIG. 9 DISPENSE VALVE Location: The dispense valve is located inside the top cover behind the front end cap.

  • Page 28: Limit Thermostat

    SERVICE (cont.) LIMIT THERMOSTAT U. S. IS , IL LI D BY FI EL W AT S/ N RI NG M AN W IR IN G A. C. E FO F TH M OD M OR IN G E OR R ON D UN R PA...

  • Page 29: Tank Heater

    SERVICE (cont.) TANK HEATER FIG. 13 TANK HEATER Location: The tank heater is located inside the tank and secured to the tank bottom. Test Procedures: 1. Disconnect the brewer from the power supply. 2. With a voltmeter, check the voltage across the white or red wire from the terminal block and the black wire from the control board.
  • Page 30 SERVICE (cont.) TANK HEATER (Cont.) 17. Install tank assembly onto mounting brackets and secure in place with four #8-32 nuts. 18. Install tank lid and secure in place with eight #8-32 nuts. 19. Connect the two white wires of the tank warmer blanket.

  • Page 31: Refill Valve

    SERVICE (cont.) REFILL VALVE FIG. 15 REFILL VALVE Location: The refill 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 the white and white/blue wires from the refill valve.

  • Page 32: Wiring Diagrams

    BLK-14 "KEEP WARM" HEATER DISPENSE WHI/GRN 120/208V AC 3 WIRE 120/240V AC 3 WIRE LEVEL PROBE 29257.0000B 12/99 ©1998 BUNN-O-MATIC CORPORATION Page 32 WHI-14 (MODELS 15 & 20) TANK HEATER RED-14 (MODEL 35) REFILL WHI/BLU 120V AC 2 WIRE SINGLE PHASE...
  • Page 33 "KEEP WARM" HEATER ON/OFF SWITCH REFILL WHI/BLU WHI/RED BREW SWITCH WHI/ORA LEVEL PROBE 29341.0000B 6/99 ©1998 BUNN-O-MATIC CORPORATION t° Page 33 WHI-14 (MODELS 15 & 20) RED-14 (MODEL 35) DISPENSE WHI/GRN 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE...

  • Page 34: Schematic Wiring Diagram

    "KEEP WARM" HEATER DISPENSE WHI/GRN 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE LEVEL 29257.0001D 02/04 ©1999 BUNN-O-MATIC CORPORATION PROBE Page 34 WHI-14 (MODELS 15 & 20) TANK HEATER RED-14 (MODEL 35) REFILL WHI/BLU...

This manual is also suitable for:

CezCezfCdbcfCdbc

Table of Contents