Bunn CWT 15-APS Instruction Manual

C, CT, CWTF Series

Including DV, APS/TC/TS,

Single CW & Twins

Supercedes Operating Manuals:

10690.####; 10737.####; 10841.0000;

28182.0000; 36102.0000

INSTALLATION & OPERATING GUIDE

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: [phone] FAX: [phone]

To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts
Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at
www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and

manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.

41721.0000A 11/08 ©2008 Bunn-O-Matic Corporation

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY

Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:

1) All equipment other than as specified below: 2 years parts and 1 year labor.

2) Electronic circuit and/or control boards: parts and labor for 3 years.

3) Compressors on refrigeration equipment: 5 years parts and 1 year labor.

4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis:
parts and labor for 3 years or 30,000 pounds of coffee, whichever comes first.
These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by
it will be commercially free of defects in material and workmanship existing at the time of manufacture and
appearing within the applicable warranty period. This warranty does not apply to any equipment, component or
part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect,
alteration, improper installation or operation, improper maintenance or repair, damage or casualty. This warranty is
conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this warranty by telephone
at [phone] or by writing to Post Office Box 3227, Springfield, Illinois 62708-3227; 2) if requested 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 WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR
ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN

are not authorized to make modifications to this warranty or to make additional warranties that are binding on
BUNN. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and
should not be relied upon.
If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its
exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts
and/or labor (during the applicable parts and labor warranty periods specified above) to repair the defective
components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall replace
the equipment or refund the purchase price for the equipment.

THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF
THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S
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.

BrewWISE, BrewLOGIC, BrewWIZARD, BUNN Gourmet Ice, BUNN Pour-O-Matic, BUNN, Bunn-OMatic, Bunn-O­Matic, BUNNlink, BUNNserve, BUNN Espress, DBC, Dr. Brew, Dual, EasyClear, EasyGard, Easy Pour, FlavorGard,
Gourmet Ice, Gourmet Juice, High Intensity, IMIX, Infusion Series, Quality Beverage Equipment Worldwide,
The Mark of Quality in Beverage Equipment Worldwide, My Café, PowerLogic, Safety-Fresh, Scale-Pro, Single,
Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, System III, ThermoFresh, 392, AutoPOD,
AXIOM, Beverage Profit Calculator, Beverage Bar Creator, BrewMETER, BUNNSERVE, BUNNsource, Coffee At Its
Best, Cool Froth, Digital Brewer Control, Intellisteam, Nothing Brews Like a BUNN, Pouring Profits, Pulse Wave,
Signature Series, Silver Series, Smart Heat, Tea At Its Best, The Horizontal Red Line, Titan, Ultra, are either
trademarks or registered trademarks of Bunn-O-Matic Corporation.

Page 2

41721 100908

INTRODUCTION

This equipment will brew one or two half-gallon batches of coffee simultaneously into awaiting dispensers
(with just the press of a button). One side may include a hot water faucet for allied beverage use. It is only for
indoor use on a sturdy counter.

USER NOTICES ........................................................................................................................................... 4

ELECTRICAL REQUIREMENTS

PLUMBING REQUIREMENTS (CURRENT SINGLES)

PLUMBING REQUIREMENTS (CURRENT TWINS)

PLUMBING REQUIREMENTS (EARLY SINGLES)

PLUMBING REQUIREMENTS (EARLY TWINS)

......................................................................................................................5

.....................................................................................6

........................................................................................7

..........................................................................................8

..............................................................................................9

INITIAL SET-UP...........................................................................................................................................10

ADJUSTING BREW VOLUMES

OPERATING CONTROLS

BREWING

CLEANING

TROUBLESHOOTING

.................................................................................................................................................. 14

................................................................................................................................................. 15

................................................................................................................................ 12

.................................................................................................................. 11

........................................................................................................................... 12

Explanation of codes:
15 - All components in machine are rated for 120 Volts ac, (15 Amps)
20 - All components in machine are rated for 120 Volts ac, (20 Amps)
35 (120/240V) - Tank heater rated for 240 volts ac, all other components rated for 120 volts ac (20 Amps)
DV - Dual Voltage. 2 tank heaters with toggle switch
MV - Multi Voltage. 2 tank heaters with terminal block. (Replaced by DV)
A - All components in machine are rated for 240 volts ac.
B - All components are rated for either 100 volts ac, or 200 volts ac.
C - Canadian models only
CE - European models only.
TWIN - 2 brewers in 1 chassis.
APS - Airpot Server (No warmers)
TC - Thermal Carafe (No warmers)
TS - Thermal Server (No warmers)

Page 3

41721 111308

USER NOTICES

WARNING !

Fill water tank before turning - on -
thermostat or connecting appliance
to power source.
Use only on a properly protected
circuit capable of the rated load.
Electrically ground the chassis.
Follow national/local electrical codes.
Do not use near combustibles.

FAILURE TO COMPLY RISKS EQUIPMENT

DAMAGE, FIRE, OR SHOCK HAZARD

READ THE ENTIRE OPERATING MANUAL

BEFORE BUYING OR USING THIS PRODUCT

THIS APPLIANCE IS HEATED WHENEVER

CONNECTED TO A POWER SOURCE

00831 0000F 3/98 ©1998 BUNN O MATIC CORPORATION

This equipment must be installed to comply
with the International Plumbing Code o the
International Code Council and the Food
Code Manual o the Food and Drug Adminis­tration (FDA). For models installed outside
the U.S.A., comply with the applicable
Plumbing /Sanitation Code.

To reduce the risk o electric shock,
do not remove or open cover.
No user-serviceable parts inside.
Authorized service personnel only.
Disconnect power be ore servicing.

WARMERS AND SURFACES ARE HOT

CAUTION

120V

120/208-240V

Optional Field Wiring

120/208-240 V, 11.4-13.1 A, 2340-3100 W

1PH, 3-Wire + GND, 60HZ

Optional Field Wiring

120/208-240 V, 13.9-15.6 A, 2640-3400 W

1PH, 3-Wire + GND, 60HZ

Optional Field Wiring

120/208-240 V, 13.0-14.8 A, 2540-3300 W

1PH, 3-Wire + GND, 60HZ

Optional Field Wiring

120/208-240 V, 12.25-13.9 A, 2440-3200 W

1PH, 3-Wire + GND, 60HZ

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.

#00656.0000

#00658.0000

#03408.0002

#03409.0002

#34955.0000

APS MODELS

#37881.0000

#00831.0000

#02765.0000

#34955.0001

ONE WARMER MODELS

TWO WARMER BREWERS

#34955.0002

#12364.0000

#34955.0003

THREE WARMER BREWERS

#34056.0000

VOLTAGE SELECTOR SWITCH

Page 4

41721 111308

ELECTRICAL REQUIREMENTS

CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.

Model 15 has an attached cordset and requires 2-wire grounded service rated 120 volts ac, 15 amp, single

phase, 60 Hz.

BLK

L1

WHI

N

Earth Ground Chassis Ground

120V. A.C.

P3516

Model 20

R e q uir e s 2 - w ire ,
grounded service rated
120 volts ac, 20 amp,
single phase, 60 Hz.
Proceed as follows:

RED

L2

WHI

N

BLK

L1

Earth Ground Chassis Ground

120V. A.C.

208 or 240V. A.C.

120V. A.C.

P1841

Model 35

Note: This electrical service

consists of 3 current carrying

conductors (Neutral, L1 and

L2) and a separate conductor

for earth ground.

BLU

L3

RED

L2

BLK

L1

Earth Ground Chassis Ground

230V. A.C.

230V. A.C.

230V. A.C.

P1843

230V ac

3 phase models

Note: This electrical service
consists of 3 current carry­ing conductors (L1, L2 and
L3) and a separate conduc-

tor for earth ground.

BLK

L1

RED

L2

Earth Ground Chassis Ground

200 or 230V. A.C.

P1842

200 or 230V ac

single phase models

P1842

Note: This electrical service
consists of 2 current carry­ing conductors (L1 and L2)

and a separate conductor

for earth ground.

NOTE: Some Twins require two individual power cords.

CE REQUIREMENTS:

• This appliance must be installed in locations where it can be overseen by trained personnel.

• For proper operation, this appliance must be installed where the temperature is between 10°C to 30°C.

• Appliance shall not be tilted more than 10° for safe operation.

• An electrician must provide electrical service as specied in conformance with all local and national codes.

• This appliance must not be cleaned by water jet.

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental

capabilities, or lack of experience and knowledge, unless they have been given instructions concerning use of
this appliance by a person responsible for its safety.

ELECTRICAL HOOK-UP
CAUTION – Improper electrical installation will damage electronic components.

1. An electrician must provide electrical service as specified.

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

3. Place the heater switche(s) at the rear of the brewer in the "OFF"

lower position.

4. Remove the front panel beneath the sprayheads. (On Dual Volt

models, place the voltage select toggle switch to the correspond­ing voltage position being used. FIG 5-1).

5. Feed the cord through the strain relief(s) and connect it to the

terminal block(s).

6. Connect the brewer to the power source and verify the voltage at

the terminal block before proceeding. Replace the front panel.

7. If plumbing is to be hooked up later be sure the brewer is discon-

nected from the power source. If plumbing has been hooked up,
the brewer is ready for Initial Set-Up.

FIG. 5-1 Dual Volt Switch Position

Page 5

41721 111308

PLUMBING REQUIREMENTS-CURRENT SINGLES

This equipment must be installed to comply with the International Plumbing Code of the International
Code Council and the Food Code Manual of the Food and Drug Administration (FDA). For models installed
outside the U.S.A., comply with the applicable Plumbing /Sanitation Code.

MODEL C:

This model is completely portable and requires no attached plumbing.

MODELS CT, CTF, CWT, CWTA, CWTB, CWTF, CWTFA & CWTFB, SINGLE CW & SINGLE CWF

These brewers must be connected to a cold water system with operating pressure between 20 and 90 psi

1

(138 to 620kPa) from a
Install a regulator in the line when pressure is greater than 90 psi (620kPa)to reduce it to 50 psi (345kPa). The
water inlet fitting is

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 tight coil of 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.

⁄2" or larger supply line. A shut-off valve should be installed in the line before the brewer.

1

⁄4" flare.

FIG 6-1 FIG 6-2

Page 6

Models CT & CWTModels CTF & CWTF

41721 111308