Bunn-O-Matic BUNN Operation Manual

®

BUNN

START

HOT WATER

CAUTION

!

S/N



MANUFACTURED BY BUNN-O-MATIC CORPORATION

BUNN

SPRINGFIELD, ILLINOIS, U.S.A.


MODEL

VOLTS A.C. AMP WATTS
PHASE WIRE HERTZ

COVERED UNDER ONE OR MOREOF THE FOLLOWING PATENTS :

ONE OR MORE OTHER PATENTS MAY BE PENDING

CAUTION

DISCARD DECANTER

!

IF:





. CRACKED



. SCRATCHED
. BOILED DRY 
. HEATED WHEN EMPTY
. USED ON HIGH FLAME
. OR EXPOSED ELECTRIC
ELEMENTS

FUNNEL CONTENTS

1985 BUNN-O-MATIC CORPORATION

ARE HOT

FAILURE TO COMPLY RISKS INJURY

PN: 658

N

O

I

!

T

C

A

U

T

H

O

D

I

L

I

U

Q

SINGLE

SINGLE

gal

1⁄2

1

1 gal

gal

1⁄2

READY

SELECTOR

ON / WARMER

™

OPERATING & SERVICE MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: [phone] FAX: [phone]

10698.0000B 11/93 ©1993 Bunn-O-Matic Corporation

HOT WATER

CAUTION

!

CAUTION: WARMERS AND SURFACES ARE HOT

INTRODUCTION

This equipment will brew a half-gallon, gallon, or gallon and a half batch of coffee into an awaiting server at
the push of a button and includes a hot water faucet for allied beverage use. The brewer is specifically designed
for use with a BUNN® 1.5GPR server. It is only for indoor use on a sturdy counter or shelf.

WARRANTY

Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects
in material and workmanship existing at the time of manufacture and appearing within one year from the date of
installation. This warranty does not apply to any equipment, component or part that was not manufactured by Bunn
or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation,
improper maintenance or repair, damage or casualty.

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.

The Buyer shall give Bunn prompt notice of any claim to be made under this warranty by telephone at (217)
529-6601 or by writing to Post Office Box 3227, Springfield, Illinois, 62708-3227. If requested by Bunn, the Buyer
shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole
discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge
for parts during the one year warranty period and no charge for labor for the first 90 days of the warranty period.
If Bunn determines that repair is not feasible, Bunn shall, at its sole option, 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, AS
SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, REPLACEMENT OR REFUND. Bunn shall not 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.

USER NOTICES

The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels.

00658.0000

12364.0000

Page 2

USER NOTICES (cont.)

00831.0000

00656.0000

CAUTION

20201.5600

!

ELECTRICAL REQUIREMENTS

CAUTION - The brewer must be disconnected from the power source until specified in

WHITE

NEUTRAL
L1 BLACK

120V.A.C.

Requires 2-wire, grounded ser­vice rated 120 volts ac, 20 amp,
single phase, 60 Hz.

L2 RED

WHITE

NEUTRAL

L1 BLACK

120V.A.C.

208 or 240V.A.C.

120V.A.C.

Requires 3-wire, grounded ser­vice rated 120/208 volts or 120/240
volts ac, 20 amp, single phase, 60
Hz.

grounded service rated 200 volts ac,
20 amp, single phase, 50 Hz.

L2 RED

L1 BLACK

“A" & "B” models require 2-wire,

HOT WATER

Initial Set-Up.

200 OR 240V.A.C.

Page 3

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. Remove the front panel beneath the sprayhead.
Models with electronic control assemblies:
Place the tank heater switch at the top of the control assembly in the “OFF” position.
Models with electromechanical thermostats:
Rotate the control thermostat knob fully counterclockwise to the “OFF” position.

4. Feed the cord through the strain relief and connect it to the terminal block.

5. Connect the brewer to the power source and verify the voltage at the terminal block before proceeding. Replace
the front panel.

6. 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.

PLUMBING REQUIREMENTS

This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi from

1

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

a
the line when pressure is greater than 90 psi to reduce it to 50 psi. 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 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.

This equipment must be installed to comply with the Basic Plumbing Code of the

Building Officials and Code Administrators International, Inc. (BOCA)

and the Food Service Sanitation Manual of the Food and Drug Administration (FDA).

Plumbing Hook-Up

1. Attach the flare fitting from the short piece of tubing on the flow control (supplied) to the water
inlet fitting on the bottom of the brewer.

2. Flush the water line and securely attach it to the flare fitting on the strainer.

3. Turn on the water supply.

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. Remove the front panel beneath the sprayhead.

Models with electronic control assemblies:

Place the tank heater switch at the top of the control assembly in the “OFF” position.

Models with electromechanical thermostats:

Rotate the control thermostat knob fully counterclockwise to the “OFF” position.

2. Connect the brewer to the power source. Water will begin flowing into the tank.

3. When water stops flowing into the tank., remove the front panel and proceed as directed:

Models with electronic control assemblies:

Place the tank heater switch at the top of the control assembly in the “ON” position and replace the front panel.

Models with electromechanical thermostats:

Rotate the control thermostat knob fully clockwise to the “ON” position and replace the front panel.

Page 4

INITIAL SET-UP (cont.)

4. Wait approximately twenty minutes for the water in the tank to heat to the proper temperature.

5. Place an empty server beneath the brew station. Place the Selector switch in the one-gallon position, the On/

Warmer switch in the upper position and initiate a brew cycle.

6. Place the On/Warmer switch in the lower “OFF” position after water has stopped flowing from the funnel, and

check the water volume in the server. It should be 128 ounces.

7. If not, disconnect the brewer from the power source, remove the front panel, and adjust the brew timer dial

up-or-down as required. Replace the front panel, connect the brewer to the power source, allow the water to
reheat, start, and measure another brew cycle.

8. Repeat step 7 until the proper water volume is achieved.

9. The brewer is now ready for use in accordance with the coffee brewing instructions.

OPERATING CONTROLS

Selector Switch

Placing the switch in the 1⁄2 Gal, 1 Gal, or 11⁄2 Gal position selects the amount of coffee to be brewed in
subsequent brew cycles. Repositioning this switch after a brew cycle has been initiated does not change the brew
batch in progress.

On/Warmer Switch

Placing the switch in the unlighted lower position cuts power to the brew station warmer and stops brewing.
Stopping a brew cycle after it has been started will not stop the flow of water from the funnel. Placing the switch
in the lighted upper position supplies power to the brew station warmer and enables the brew circuit.

Start

Momentarily pressing and releasing this switch starts a brew cycle when the On/Warmer switch is in the lighted
upper position.

NOTE – The On/Warmer switch must be in the lighted upper position to initiate and complete a brew cycle.

COFFEE BREWING

1. Select the desired batch size.

2. Insert a BUNN® filter into the funnel.

3. Pour the proper amount of fresh coffee into the filter and level the bed of grounds by gently shaking.

4. Slide the funnel into the funnel rails.

5. Place an empty server under the funnel.
6 Place the On/Warmer switch in the lighted upper position. Momentarily press and release the start switch.

7. When brewing is completed, simply discard the grounds and filter.

CLEANING

1. 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.

2. Check and clean the sprayhead. The sprayhead holes must always remain open.

NOTE – In hard water areas, this may need to be done daily. It will help prevent liming problems in the brewer and
takes less than a minute.

Page 5

SCHEMATIC WIRING DIAGRAM SINGLE BREWER

L1

TANK HEATER
1800W @120V
3700W @208V

BLK-12

K1

N.O.

LIMIT THERMOSTAT

VIO

RED RED

BLK

OPTIONAL 3-SET SELECTOR SWITCH SHOWN

WITH GRINDER INTERFACE OPTION

TAN

GRY

FRACTIONAL

BATCHES

(CONNECT

AS REQUIRED)

FULL BATCH

(NO CONNECTION)

PNK

S
E
L
E
C
T
O
R

S

W

120 VOLTS AC 2 WIRE
120/208 VOLTS AC OR

120/240 VOLTS AC

3 WIRE

WHI/VIO

GRY
PNK
TAN

4
3
2

1

4000W @240V

READY INDICATOR

SAFETY SW

GRINDER
INTERFACE
CONNECTOR

1/4 BATCH
1/3 BATCH
1/2 BATCH
2/3 BATCH

3/4 BATCH
BATCH COMMON

SW. & THERMOSTAT

BLKBLK

BREW
TIMER

OPTIONAL WATER

BYPASS SOL.

SOL

1
2

3
4
5

WHI/VIO

WHI/VIO

WHI/ORA
WHI/GRN
WHI/YEL

WHI/GRN

10697.0000D 10/93 © 1993 BUNN-O-MATIC CORPORATION

RED-12BLK-12

BLU

K1

N.O.

K1

LIQUID
LEVEL

BOARD

WHI/VIO

WHI/RED

AUXILIARY OUTLET

200 WATT MAXIMUM

GRN

RED-12 (208 OR 240V)

WHI-12 (120V)

BLU

1

BLK

2
3

PIN-20

4

100W WARMER

SOL

GREEN

SOL

PROBE

SCHEMATIC WIRING DIAGRAM SINGLE BREWER ECA

L1

N

L2

BLK-12 BLK-12

WHI

WHI

WHI

WHI
WHI

WHI

WHI

BLK

BLK
BLK

OPTIONAL 3-SET SELECTOR SWITCH SHOWN

S
E
L
E
C
T
O
R

S
W

GRN

LIMIT

THERMOSTAT

READY

L.E.D.

SAFETY SW

RED RED

WITH GRINDER INTERFACE OPTION

TAN

GRY

FRACTIONAL

BATCHES

(CONNECT

AS REQUIRED)

FULL BATCH

(NO CONNECTION)

PNK

WHI/VIO

4

GRY

3

PNK

2

TAN

1

TANK HEATER

1800W @120V
3700W @208V
4000W @240V

PNK

GRY

1/4 BATCH
1/3 BATCH
1/2 BATCH
2/3 BATCH

3/4 BATCH
BATCH COMMON

GRINDER

INTERFACE

CONNECTOR

INTERLOCK

ASSY

W

W

H

t°

H

I

I

PNK
GRY
GRY
GRY

WHI/YEL

ORA

BREW
TIMER

4
5

OPTIONAL WATER

BYPASS SOL.

SOL

WHI/VIO

1
2
3

TANK HEATER

ELECTRONIC

CONTROL

WHI/VIO

ORA

WHI/GRN

YEL

WHI/GRN

ASSY

SW

BLU-12

7
6

5
4
3
2
1

TAN
BLU

WHI/BRN

PIN 20

WHI-12 (208 OR 240V)
WHI -12(120V)

(PROBE)

GRN

WHI/BLU

WHI/VIO

SOL

WHI/RED

AUXILIARY OUTLET

RED (208 OR

240V)

WHI (120V)

100W WARMER

GREEN

NL2

WHI

SOL

WHI
WHI

WHI

WHI

200 WATT MAXIMUM

120 VOLTS AC 2 WIRE
120/208 VOLTS AC OR

120/240 VOLTS AC

3 WIRE

10706.0000B 10/93 © 1993 BUNN-O-MATIC CORPORATION

SCHEMATIC WIRING DIAGRAM SINGLE-A & -B BREWER

L1

TANK HEATER
3700W @200V

BLK-12

K1

N.O.

VIO

SAFETY SW

RED RED

LIMIT THERMOSTAT

BLK

OPTIONAL 3-SET SELECTOR SWITCH SHOWN

WITH GRINDER INTERFACE OPTION

TAN

GRY

FRACTIONAL

BATCHES

(CONNECT

AS REQUIRED)

FULL BATCH

PNK

(NO CONNECTION)

S
E
L
E
C
T
O
R

S

W

200 OR 240 VOLTS AC

2 WIRE

WHI/VIO

4

GRINDER

GRY

3

INTERFACE

PNK

2

CONNECTOR

TAN

1

10702.0000B 10/93 © 1993 BUNN-O-MATIC CORPORATION

1/4 BATCH
1/3 BATCH
1/2 BATCH
2/3 BATCH

3/4 BATCH
BATCH COMMON

3300W @240V

BLKBLK

OPTIONAL WATER

BYPASS SOL.

READY INDICATOR

SW. & THERMOSTAT

1

BREW

2

TIMER

3
4
5

SOL

WHI/VIO

WHI/VIO

WHI/ORA
WHI/GRN
WHI/YEL

WHI/GRN

RED-12BLK-12

K1

N.O.

BLU

K1

LIQUID
LEVEL

BOARD

WHI/VIO

WHI/RED

SCHEMATIC WIRING DIAGRAM SINGLE-A & -B BREWER ECA

L1

GRN/YEL

L2

RED-12

RED

BLU

1

BLK

2
3

PIN-20

4

SOL

SOL

PROBE

100W WARMER

RED

RED

RED

RED

RED

GRNYEL

LIMIT

THERMOSTAT

BLK-12 BLK-12

BLK

RED RED

BLK
BLK

OPTIONAL 3-SET SELECTOR SWITCH SHOWN

WITH GRINDER INTERFACE OPTION

TAN

GRY

FRACTIONAL

BATCHES

(CONNECT

AS REQUIRED)

FULL BATCH

(NO CONNECTION)

S
E
L
E
C
T
O
R

S
W

200 OR 240 VOLTS AC

2 WIRE

TANK HEATER
3700W @200V
3300W @240V

PNK

READY

L.E.D.

GRY

SAFETY SW

PNK

WHI/VIO

4

GRINDER

GRY

3

INTERFACE

PNK

2

CONNECTOR

TAN

1

10707.0000B 10/93 © 1993 BUNN-O-MATIC CORPORATION

INTERLOCK

1/4 BATCH
1/3 BATCH
1/2 BATCH
2/3 BATCH

3/4 BATCH
BATCH COMMON

W

H
I

ASSY

WHI/YEL

ORA

OPTIONAL WATER

BYPASS SOL.

BREW
TIMER

L2

TANK HEATER

ELECTRONIC

CONTROL

WHI/VIO

ORA

WHI/GRN

YEL

WHI/GRN

ASSY

BLU-12

TAN
BLU

7

WHI/BRN

6

SW

PIN 20

5
4
3

GRN

2

1

W
H

t°

I

PNK
GRY
GRY
GRY

1
2

3
4
5

SOL

(PROBE)

WHI/VIO

WHI/RED

WHI -12

RED

WHI/BLU

SOL

SOL

100W WARMER

RED

RED
RED

RED

WHI/VIO

Page 6

Page 7