Instruction/ maintenance manual of the product CWTF-DV Bunn
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CWT -DV , CWT APS-DV , CWTF-DV , CWTF APS-DV.
Page 2 INTRODUCTION This equipment will brew a half-gallon batch of coffee into an awaiting dispenser. It can be easily configured for 120V 15 amp, 120/208V 20 amp or 120/240V 20 amp. The brewer has a hot water faucet for allied beverage use. It is only for indoor use on a sturdy counter or shelf.
Page 3 #12364.0000.
Page 4 #00656.0000.
Page 5 36102 090203 ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up. Requires 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz. 120V VERSION 120/208-240V VERSION Requires 3-wire, grounded service rated 120/240 volts ac, 20 amp, single phase, 60 Hz.
Page 6 1. Flush the water line and securely attach it to the inlet flare. 2. Turn on the water supply. 3. On faucet models, place an empty vessel beneath the faucet and lift the handle until water is dispensed.
Page 7 36102 090203 INITIAL SET -UP 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.
Page 8 36102 090203 2. Setting batch sizes. To set a batch volume, first check that the SET/LOCK switch is in the "SET" position on the circuit board. Press and hold the ST ART or BREW switch until three distinct clicks are heard, and then release the switch.
Page 9 36102 090203 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.
Page 10 36102 090203 TROUBLESHOOTING (cont.) PROBLEM Brew cycle will not start (cont.) Water is not hot PROBABLE CAUSE REMEDY 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.
Page 11 36102 090203 TROUBLESHOOTING (cont.) PROBLEM Inconsistent beverage level in dispenser Consistently low beverage level in the dispenser Spitting or excessive steaming PROBABLE CAUSE 1.
Page 12 36102 090203 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.
Page 13 36102 090203 TROUBLESHOOTING (cont.) PROBLEM Weak beverage Dry coffee grounds remain in the funnel Brewer is making unusual noises PROBABLE CAUSE 1. Filter Type 2. Coffee Grind 3. Sprayhead 4. Funnel Loading 5. Water Temperature 1. Funnel Loading 1.
Page 14 36102 090203 TROUBLESHOOTING (cont.) PROBLEM Brewer is making unusual noises (cont.) Low beverage serving tempera- ture (CWTF Only) PROBABLE CAUSE 4. Tank Heater(s) 1. Warmer REMEDY Remove and clean lime off the tank heater(s). See page 20 Refer to Service - Warmer ele- ment for testing procedures.
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Page 16 SERVICE (cont.) 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.
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Page 19 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 SERVICE (cont.) START SWITCH.
Page 21 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. With a voltmeter, check the tank heater voltage across the white wire from the terminal block and black wire from the tank heater.
Page 22 SERVICE (cont.) 36102 090203 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 SERVICE (cont.) TANK HEATER SWITCH.
Page 24 SERVICE (cont.) P1135 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.
Page 25 36102 090203 FIG. 16 VOLTAGE SELECTOR SWITCH P2759.40 White/Violet to Tank Heater Blue to Tank Heater White to Terminal Block FIG. 17 VOLTAGE SELECTOR SWITCH TERMINALS SERVICE (cont.
Page 26 THERMAL FUSES.
Page 27 SERVICE (cont.) DIGITAL TIMER FIG. 20 DIGITAL TIMER.
Page 28 SERVICE (cont.) To increase a brew volume, place the ON/OFF switch in the “ON” position, press and hold the ST ART switch until three clicks are heard.
Page 29 SERVICE (cont.) WARMER ELEMENT(S) Location: The warmer elements are located under the warmer plates. Test Procedures: 1. Disconnect the brewer from the power source.
Page 30 36102 090203 T1 T5 T3 T4 T2 BLK-14 BLK-14 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE WHI-14 WHI WHI WHI WHI/RED WHI/RED WHI/RED WHI WHI WHI WHI WHI WHI WHI WHI WHI/GRN WHI/BLU WHI/VIO-14 BLU-14 RED-14 TANK HEATER 1320 W 1800 W TANK HEATER SELECTOR SWITCH 10836.
Page 31 36102 090203 T1 T5 T3 T4 T2 BLK-14 BLK-14 120V AC 2 WIRE 120/208V AC 3 WIRE 120/240V AC 3 WIRE SINGLE PHASE WHI-14 WHI WHI WHI/RED WHI/RED WHI WHI/GRN WHI/BLU WHI/VIO-14 BLU-14 RED-14 TANK HEATER TANK HEATER SELECTOR SWITCH 10836.
An important point after buying a device Bunn CWTF-DV (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bunn CWTF-DV yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bunn CWTF-DV - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn CWTF-DV you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn CWTF-DV will certainly help you make a decision on the purchase.
If you already are a holder of Bunn CWTF-DV, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bunn CWTF-DV.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn CWTF-DV. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn CWTF-DV along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
