Bunn Coffee Maker U3 Parts Diagram

BUNN

U3 U3A

ILLUSTRATED PARTS CATALOG

Designs, materials, weights, specifications, and dimensions for equipment or replacement parts

are subject to change without notice.

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: (217) 529-6601 FAX: (217) 529-6644

www.bunnomatic.com

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 (217) 529-6601 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.

28046 070102

TABLE OF CONTENTS

Electrical Controls & Indicator Lights....................................................................................................................................... 34

Electrical Controls & Indicator Lights (U3A, after SN U300004095) ........................................................................................38

Funnels, Sprayheads, Filter Baskets & Supports ........................................................................................................................ 8

Housing, Panels & Covers ......................................................................................................................................................... 4

Numerical Index .......................................................................................................................................................................42

Outlet Box and Terminal Block .................................................................................................................................................32

Pump/Motor & Mounting (Early Models) ................................................................................................................................. 18

Pump/Motor & Mounting (Late Models) .................................................................................................................................. 20

Reservoirs, Faucets & Sight Gauges (Single & Double Service Brewers) ................................................................................ 24

Reservoirs, Faucets & Sight Gauges (Scrambler) .................................................................................................................... 28

Strainer & Solenoid Valve Piping ............................................................................................................................................. 12

Strainer & Solenoid Valve Piping (U3A, after SN U300004095) ............................................................................................... 14

Swing Spout & Mounting ......................................................................................................................................................... 22

Thermostats & Tank Heaters.................................................................................................................................................... 16

28046 021401

BUNN

HOUSING, PANELS AND COVERS

1 2 3

4 5

BREWERS W & W/O BREW LOCKOUT

4 32 5

9 6 10

10 12 11 12

SINGLE SERVICE

LEG OPTION

ONLY

P1295.35

28046 080400

HOUSING, PANELS AND COVERS

ITEM PART NO. QTY. DESCRIPTION

ITEM PART NO. QUANTITY DESCRIPTION

* ** ***

1 07239.0000 1 - 1 Cover, Cupola - Rear

07240.0000 - 1 - Cover, Cupola - Rear

33726.0000 1 1 - Cover, Cupola - Rear (50 Hz Models)

01317.0000 2 2 2 Screw, Truss Head #8-32 x .5”

2 28064.1000 1 1 1 Housing, Cupola (120/208 and 120/240V Models)

28064.1001 1 1 1 Housing, Cupola (208 or 240V Models)

28064.1002 1 1 1 Housing, Cupola (380 or 440V four wire Models)

28064.1003 1 1 1 Housing, Cupola (380V three wire Models)

3 07238.0000 1 1 1 Bracket, Switch Mounting (I20/208V, 120/240V, 380V, 440V Brewers & 240V

27903.0000 1 1 - Bracket, Switch Mounting (240V Brewer #U300004095 and up)

01315.0000 2 2 2 Screw, Truss Head Phillips #8-32 x .38”

4 07236.0000 1 1 1 Cover, Cupola - Front (Brewers W/Out Brew Lockout)

07236.0001 1 1 1 Cover, Cupola - Front (Brewers W/Brew Lockout)

07236.0002 1 1 1 Cover, Cupola - Front (Brewers W/External Thermostat Control)

02322.0000 2 2 2 Screw, Truss Head. Blk Oxide #8-32 x .50”

00917.0000 2 2 2 Fastener, “J” Type #8-32

*Single Service (Front Faucets Only)

**Double Service (Front and Rear Faucets)

***Scrambler (Left and Right Side Faucets)

Each Includes item 28

Brewers Prior to #U300004095)

Also Order Item 32

5 07248.0000 1 1 1 Decal, Power/Half-Full/Start

6 00878.0000 1 1 1 Decal, Turn Off When Unattended

7 21667.0000 1 1 1 Decal, Control (Brewers W/External Thermostat Control)

8 00823.0000 1 1 1 Decal, BUNN-O-MATIC (Brewers W & W/Out Brew Lockout)(Prior to 10/1/99)

21667.0002 1 1 1 Decal, BUNN-O-MATIC (Brewers W & W/Out Brew Lockout)(Effective 10/1/99)

9 07226.0000 1 1 1 Panel Assy, 120/208V and 120/240V Brewers

07226.0002 1 1 1 Panel Assy, 208V, 230V, 240V, 380V and 440V Brewers

01315.0000 12 12 12 Screw, Truss Head Phillips #8-32 x .38”

10 07288.0000 4 4 4 Gasket, Reservoir Mounting

11 07289.0001 2 2 2 Gasket, Panel Mounting - 7.72” LG

12 07289.0002 2 2 2 Gasket, Panel Mounting - 13.25” LG

13 07001.1000 1 - - Housing W/Decals (Std. - W/4” Adjustable Legs)

07001.1002 1 - - Housing W/Decals (Opt. - W/8” Adjustable Legs)

07122.1000 - - 1 Housing W/Decals (W/4” Adjustable Legs)

07002.1000 - 1 - Housing W/Decals (W/4” Adjustable Legs)(Includes items 16,17,26 & 31)

14 00831.0000 1 1 1 Decal, Warning - Electrical

15 00656.0000 1 1 1 Decal, Comply to Plumbing Code

Includes items 14 -17,26 & 31

16 29299.0000 2 2 2 Decal, Caution Swing Spout

17 10044.0000 1 1 1 Decal, Warning Shut Off Power

(Continued)

28046 102202

BUNN

HOUSING, PANELS AND COVERS

(Continued)

1 2 3

4 5

10 12 11 12

BREWERS W & W/O BREW LOCKOUT

4 32 5

9 6 10

SINGLE SERVICE

LEG OPTION

ONLY

P1295.35

28046 080400

HOUSING, PANELS AND COVERS

ITEM PART NO. QTY. DESCRIPTION

ITEM PART NO. QUANTITY DESCRIPTION

* ** ***

18 07285.0000 1 1 - Cover, Drip Tray

19 07286.0000 1 1 - Drip Tray

20 01526.0000 4 4 4 Washer, Flat .438” I.D. x 1.88” O.D. (Brewers W/4” Adjustable Legs)

21 00502.0000 4 4 4 Leg, 4” Adjustable - Nickel

22 03996.0000 4 4 4 Pad, Anti-skid - 1.25” Dia

23 07222.0000 4 - - Leg, 8” Adjustable

24 03993.0000 4 - - Pad, Anti-skid .70” Dia

25 07039.1000 - 1 - Cover, Rear Utility (Includes items 14,15 & 26)

01311.0000 - 6 - Screw, Truss Head #8-32 x .25”

26 12593.0000 1 2 2 Decal, Warning - Very Hot Water

27 00875.0000 - 1 2 Decal, BUNN-O-MATIC

*Single Service (Front Faucets Only)

**Double Service (Front and Rear Faucets)

***Scrambler (Left and Right Side Faucets)

Optional. See item 30

See Item 29

Optional

28 10492.0000 1 1 1 Schematic, Electrical 120/208V & 120/240V - 3 Wire 1 Phase 60 Hz

10494.0000 1 1 1 Schematic, Electrical 208 or 240 - 3 Wire 3 Phase 50/60 Hz

10495.0000 1 1 1 Schematic, Electrical 380V or 440V - 4 Wire 3 Phase 50/60 Hz

10495.0001 1 1 1 Schematic, Electrical 380V - 3 Wire 3 Phase 50/60 Hz

29 13255.0002 - - - Kit, Leg 4” Adjustable Nickel (Includes items 21 & 22)

30 07284.0000 - - - Drip Tray Assembly (Includes items 18 & 19)

31 12555.0000 1 2 2 Decal, Caution - Hot Surfaces

32 32540.0001 1 1 1 Decal, Batch Set (Digital Timer - Late Models)

28046 080400

BUNN

FUNNELS, SPRAYHEADS, FILTER BASKETS AND SUPPORTS

BREWERS WITH SST FUNNEL

COVER

BREWERS WITH FILTER SUPPORT

SST FUNNEL

P1296.30

28046 031599

FUNNELS, SPRAYHEADS, FILTER BASKETS AND SUPPORTS

ITEM PART NO. QTY. DESCRIPTION

1 00725.0000 2 Knob, Plastic - Black

01315.0000 2 Screw, Truss Head Phillips #8-32 x .38”

2 01192.0000 2 Cover

3 07023.0003 2 Cover Assy, Plastic - Black (Includes items 4 & 5)

07023.0002 1 Cover Assy, Plastic - Orange (Includes items 4 & 5)

07177.0003 2 Cover Assy, Plastic - Black (Brewers W/Filter Support)(Includes items 4, 5 & 8)

07177.0002 1 Cover Assy, Plastic - Orange (Brewers W/Filter Support)(Includes items 4, 5 & 8)

20508.0001 2 Cover Assy, SST (Includes items 4, 5 & 7)

20508.0003 2 Cover Assy, SST (Brewers W/Filter Support)(Includes items 4, 5, 7 & 8)

4 -------------- 2 Cover, Plastic - Black (Not available. Order item 3)

-------------- 1 Cover, Plastic - Orange (Not available. Order item 3)

-------------- 2 Cover, Plastic - Black (BrewersW/ Filter Support)(Not available. Order item 3)

-------------- 1 Cover, Plastic - Orange (Brewers W/ Filter Support )(Not available. Order item 3)

-------------- 2 Cover, SST (Not available. Order item 3)

-------------- 2 Cover, SST (Brewers W/Filter Support)(Not Available. Order item 3)

5 07024.1002 2 Sprayhead, Plastic - Black (Includes hardware below, except for acorn nuts)

01339.0000 6 Screw, Pan Head #6-32 x .625”

01520.0000 6 Lockwasher, Split #6

00906.0000 6 Nut, Hex #6-32

02319.0000 6 Nut, Acorn #6-32 (Brewers W/SST Funnel Cover)

Brewers W/Plastic Funnel Covers

Refer to Item 19

6 07175.0000 2 Filter Housing Stand (Not used on brewers w/filter support or SST funnels)

7 20507.0001 2 Ring, Funnel Cover, Plastic - Black (Brewers W/SST Funnel Cover)

02328.0004 4 Screw, Pan Head #6-32 x .312”

02319.0000 4 Nut, Acron #6-32

8 07176.0000 2 Basket, Filter Support

9 07022.0012 2 Funnel W/Decals, Plastic - Black (Includes items 16 & 17)

07022.0013 1 Funnel W/Decals, Plastic - Orange (Includes items 16 & 17)

20510.0001 2 Funnel Assy, SST (Includes items 10, 11, 12, 16 & 17)

10 20505.0000 2 Basket, Filter

11 20502.0000 2 Funnel, SST

12 21472.0000 2 Handle, Plastic - Black

01327.0000 4 Screw, Pan Head #10-32 x .38”

13 07021.0002 2 Support, Funnel Plastic - Black (Refer to Item 18)

07021.0004 1 Support, Funnel Plastic - Orange (Refer to Item 18)

-------------- 2 Support, Funnel Plastic - Black (Refer to item 18)(Brewers W/By-Pass. See Swing Spout and Mounting)

-------------- 1 Support, Funnel Plastic - Orange (Refer to item 18)(Brewers W/BY-Pass. See Swing Spout and Mounting)

20504 .0000 2 Support, Funnel SST (Refer to Item 18)

-------------- 2 Support, Funnel SST (Refer to item 18)(Brewers W/By-Pass. See Swing Spout and Mounting)

14 -------------- - Reservoir (See Reservoirs and Faucets)

15 -------------- - Housing (See Housing, Panels and Covers)

(Continued)

28046 031599

BUNN

FUNNELS, SPRAYHEADS, FILTER BASKETS AND SUPPORTS

(Continued)

BREWERS WITH SST FUNNEL

COVER

BREWERS WITH FILTER SUPPORT

SST FUNNEL

P1296.30

28046 031599

FUNNELS, SPRAYHEADS, FILTER BASKETS AND SUPPORTS

ITEM PART NO. QTY. DESCRIPTION

16 03408.0000 2 Decal, Warning - Remove Funnel Slowly

17 03409.0000 2 Decal, Warning - Hot Liquid

18 07121.0002 - Funnel Kit, Plastic - Black (Includes items 3, 4, 5, 9 & 13)

07121.0003 - Funnel Kit, Plastic - Orange (Includes items 3, 4, 5, 9 & 13)

07121.0004 - Funnel Kit, SST (Includes items 3, 4, 5, 7, & 9 thru 13)

07121.0006 - Funnel Kit, Plastic - Black (Brewers W/Filter Support Basket)(Includes items 3, 4, 5, 8,9 & 13)

07121.0007 - Funnel Kit, Plastic - Orange (Brewers W/Filter Support Basket)(Includes items 3, 4, 5, 8, 9 & 13)

07121.0008 - Funnel Kit, SST (Brewers with W/Filter Support Basket)(Includes items 3, 4, 5 & 7 thru 13)

07121.0010 - Funnel Kit, Plastic - Black (Brewers W/By-Pass)(Includes items 3, 4, 5, 9 & 13)

07121.0011 - Funnel Kit, Plastic - Orange (Brewers W/By-Pass)(Includes items 3, 4, 5, 9 & 13)

07121.0012 - Funnel Kit, SST (Brewers W/By-Pass)(Includes items 3, 4, 5, 7 & 9 thru 13)

07121.0014 - Funnel Kit, Plastic - Black (Brewers W/Filter Support Basket & By-Pass )(Includes items 3, 4, 5, 8, 9 & 13)

07121.0015 - Funnel Kit, Plastic - Orange (Brewers W/Filter Support Basket & By-Pass)(Includes items 3, 4, 5, 8, 9 & 13)

07121.0016 - Funnel Kit, SST (Brewers W/Filter Support Basket & By-Pass)(Includes items 3, 4, 5, 7 thru 13)

19 02564.0000 - Funnel Cover Lid Kit (Includes item 1 & 2)

28046 031599

BUNN

STRAINER AND SOLENOID VALVE PIPING

32 31

SOLENOID REPAIR KIT

21 22 23 24 25 26

27 28 29

240V SOLENOID REPAIR KIT

14 15 16

13 12 17

11 10 9 8

P1297.39

28046 021401

STRAINER AND SOLENOID VALVE PIPING

ITEM PART NO. QTY. DESCRIPTION

1 07052.0000 1 Solenoid Valve Assy, 120V (Includes items 2 thru 6)

07052.0002 1 Solenoid Valve Assy, 240V (Includes items 2 thru 6)

2 07072.0000 2 Connector, Male Brass .38” Tube x .25” Male

3 -------------- 1 Solenoid Valve (Not Available. Order item 1)(Refer to

Items 27 &37)

4 01537.0000 1 Washer, Nylon .753” I.D. x 1.006” O.D.

5 07083.1000 1 Air Chamber, Solenoid Valve

6 07051.1000 1 Tube Assy, Inlet - Solenoid to Housing (Includes

Nut and Ferrules)

7 07075.0000 1 Grommet, Inlet Tube Assy

8 01258.0000 1 Valve, Fill/Drain

9 01536.0000 1 Gasket, Fill/Drain Valve

10 07111.0000 1 Fitting, .38” Flare to .75” Hose

11 07109.0000 1 Tube Assy, Manual Refill - Tee to Fill/Drain Valve

12 07117.0000 1 Tube Assy, Strainer to Tee

13 23720.1000 1 Strainer Assy, (Includes items 14, 15 & 16)

14 23723.0000 1 Cap, End

15 23721.0000 1 Screen

16 -------------- 1 Housing, Strainer (Not Available. Order item 13)

17 07112.0000 1 Tee, .38” Male Flare

18 07037.1000 1 Tube Assy, Tee to Solenoid (Includes nuts and ferrules) (120/208V, 120/240V, 380V,

440V Brewers and 240V Brewers prior to #U300004095)

19 00603.0000 1 Clamp, .438” I.D.

20 07261.0000 1 Repair Kit, Solenoid (Includes items 7, 21 thru 29)

21 -------------- 1 Spring, Plunger (Not Available. Order item 20)

22 -------------- 1 Plunger Assy (Not Available. Order item 20)

23 07264.0000 1 O-Ring, Bonnet

24 -------------- 1 Seat, Plunger (Not Available. Order item 20)

25 -------------- 1 O-Ring, Plunger Seat (Not Available. Order item 20)

26 -------------- 1 Screen (Not Available. Order item 20)

27 ------------- 1 Gasket, Orifice Plate (Not Available. Order item 20)

28 -------------- 1 Diaphragm, Flow 1.0 GPM (Not Available. Order item 20)

29 01537.0000 1 Washer, Nylon

30 07261.0001 1 Seal Kit, Solenoid (Includes items 7, 21, 23, 24, 25 & 27)

31 28020.0000 1 Coil

32 28021.0000 1 Core Assy Kit (Includes Core, Spring and O-ring)

33 29649.0000 1 Diaphragm and Spring Kit (Includes item 34)

34 29648.0000 1 Spring, Diaphragm

120/208V, 120/240V 380V, 440V Brewers & 240V Brewers Prior to #U300004095

28046 032702

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