Bunn CWT APS-DV Operating & Service Manual Download Page 5

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.

ELECTRICAL HOOK-UP
CAUTION

Improper electrical installation will damage electronic components.

1.

An electrician must provide electrical service.

2.

Determine the available on-site electrical service.

3.

Select the desired unit voltage based on the available on-site electrical service.

4.

Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.

5.

Remove the front access panel beneath the sprayhead to gain access to the terminal block.

6.

Feed the supply leads through the rear of the brewer.

7.

Using the above diagrams, connect the desired electrical service to the field wiring terminal block.

8.

Before proceeding, verify the voltage at the field wiring terminal block.

9.

Set toggle switch on component bracket to the appropriate position and replace the access panel.

10. If plumbing is to be hooked up later be sure the brewer is disconnected from the power source.  If plumbing

has been hooked up, the brewer is ready for 

Initial Set-Up.

Models CWTF-DV & CWTF-APS DV

Requirements for brewers without an attached cord set are as follows:

Summary of Contents for CWT APS-DV

Page 1: ...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 Bun...

Page 2: ...sted by BUNN shipping the defective equipment prepaid to an authorized BUNN service location and 3 receiving prior authorization from BUNN that the defective equipment is under warranty THE FOREGOING...

Page 3: ...ow 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 02765 0000 36102 090203 Optional Field Wiring 1...

Page 4: ...15 6 A 2640 3400 W 1PH 3 Wire 60HZ 34955 0001 ONE WARMER MODELS 34955 0003 THREE WARMER BREWERS Optional Field Wiring 120 208 240 V 12 25 13 9 A 2440 3200 W 1PH 3 Wire 60HZ USER NOTICES CONT 120V 120...

Page 5: ...rical service 4 Using a voltmeter check the voltage and color coding of each conductor at the electrical source 5 Remove the front access panel beneath the sprayhead to gain access to the terminal blo...

Page 6: ...i 345 kPa The water inlet fitting is 1 4 flare NOTE Bunn O Matic recommends 1 4 copper tubing for installations of less than 25 feet and 3 8 for more than 25 feet from the 1 2 water supply line A tigh...

Page 7: ...d flowing from the funnel It should be 64 ounces 9 If not adjust the brew timer as required SeeAdjustingBrewVolumes Start and measure another brew cycle 10 Repeat step 9 until 64 oz water volume is ac...

Page 8: ...ntil the tank syphons down to its proper level Placing the switch in the ON upper position supplies power to enable the brew circuit on all brewers and the brew station warmer on CWT CWTF DV Models ST...

Page 9: ...thout a supply of water Theuseoftwowrenchesisrecommendedwheneverplumbingfittingsaretightenedorloosened Thiswillhelp to avoid twists and kinks in the tubing Make certain that all plumbing connections a...

Page 10: ...ice Timerfortesting procedures See page 26 and 27 Refer to Service Solenoid Valve for testing procedures See page 19 A Direction of flow arrow must be pointing towards brewer B Remove the strainer flo...

Page 11: ...rly depending on local water condi tions Excessive mineral build up on stainless steel surfaces can initiatecorrosivereactionsresult ing in serious leaks REMEDY A Direction of flow arrow must be point...

Page 12: ...alve 1 Dispenser 2 Timer 3 Solenoid Valve REMEDY Refer to Service Control Ther mostatfortestingprocedures See page 16 Thebrewermustbelevelorslightly lower in front to syphon properly Inspect the tank...

Page 13: ...entle shak ing Placeanemptyfunnelonanempty dispenser beneath the sprayhead Initiate a brew cycle and check the water temperature immediately below the sprayhead with a ther mometer The reading should...

Page 14: ...rewer 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...

Page 15: ...specified COMPONENT ACCESS WARNING Disconnect the brewer from the power source before the removal of any panel or the replace ment of any component All components are accessible by the removal of the...

Page 16: ...ts ac for two wire 120 volt models b 120 volts ac for three wire 120 208 volt models or 120 240 volt models 8 Disconnect the brewer from the power source Ifvoltageispresentasdescribed reinstallthecapi...

Page 17: ...cribed the limit thermo stat is operating properly If continuity is not present as described replace the limit thermostat FIG 4 LIMIT THERMOSTAT P2759 40 SERVICE cont P1800 BLU to Control Thermostat B...

Page 18: ...water supply 8 Refer to Fig 7 when reconnecting the wires Location TheON OFFswitchesarelocatedonthefrontofthe hood Test Procedure 1 Disconnect the brewer from the power source 2 Viewingtheswitchfromt...

Page 19: ...witch in the ON upper position press start switch and listen carefully in the vicinity of the solenoid valve for a clicking sound as the coil magnet attracts 7 Disconnect the brewer from the power sou...

Page 20: ...reconnect the blue wire to the top terminal and the white red wire to thebottomterminal Theswitchisoperatingproperly If continuity is not present as described replace the switch FIG 11 START SWITCH T...

Page 21: ...f continuity is not present as described replace the open tank heater NOTE If the tank heater s remain unable to heat remove and inspect heater s for cracks in the sheath Removal and Replacement 1 Dis...

Page 22: ...ual when reconnecting wires 16 Install fill basin secure with tank inlet fitting and gasket Insert water supply line through grommet in fill basin 17 Refer to Fig 13 when reconnecting the tank heater...

Page 23: ...or reassembly 6 Disconnect the wires on the limit thermostat and the tank heater and the control thermostat early models 7 Gently pull the thermostat sensor and grommet from the tank lid 8 Insert a tu...

Page 24: ...s 17 Reconnect the wires to the limit thermostat tank heater and the control thermostat Refer to limit thermostat tank heater and control thermostat sections in this manual when reconnecting wires 18...

Page 25: ...reconnect the white wire and continue to Step 3 If continuity is not present as described replace the voltage selector switch 3 With the selector switch in the 120 208 240V position disconnect the wh...

Page 26: ...yacrossthe thermal fuse terminals If continuity is present as described the thermal fuse is operating properly If continuity is not present as described replace the thermal fuse Removal and Replacemen...

Page 27: ...t as described disconnect the brewer from the power source and replace the timer 7 With a voltmeter check the voltage across termi nals TL1 and TL4 when the ON OFF switch is in the ON position Connect...

Page 28: ...me first check that the SET LOCK switch is in the SET position on the circuit board Place the ON OFF switch in the ON position press and hold the START switch until three distinct clicks are heard and...

Page 29: ...terminals on the warmer element If continuity is present as described reconnect the wires on the warmer element If continuity is not present as described replace the warmer element Removal and Replace...

Page 30: ...ON BLK BLK BLK BRN BLK BRN BLK BLK BLK BLK BLK BLU BLU WHI RED WHI HEATER SWITCH ON OFF SWITCH L1 BLU LIMIT THERMOSTAT READY INDICATOR GRN SW THERMOSTAT VIO VIO VIO VIO REAR WARMER FRONT WARMER LOWER...

Page 31: ...I VIO 14 BLU 14 RED 14 TANK HEATER TANK HEATER SELECTOR SWITCH 10836 0010A 10 02 2001 BUNN O MATIC CORPORATION BLK BLK BLK BLK BLU BLU WHI RED WHI HEATER SWITCH ON OFF SWITCH L1 BLU LIMIT THERMOSTAT R...

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