Bunn SRU Instruction Manual

DISCONNECTFROMPOWERSOURCE
BEFOREREMOV
ALOF
ANYP
ANELOR
REPLACEMENTOF
ANYCOMPONENT!
WARNING
!
ATTENTION:TURNOFFWHENUNATTENDED ATTENTION:TURNOFFWHENUNATTENDED
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: [phone] FAX: [phone]
www.bunnomatic.com
28113.0000C 08/06 ©2000 Bunn-O-Matic Corporation
SRU
SRUA

228113 081406
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.
BUNN and SRU are either trademarks or registered trademarks of Bunn-O-Matic Corporation.

TABLE OF CONTENTS
Electrical and Operating Controls.............................................................................................................22
Funnels, Sprayheads, Filter Baskets and Supports.....................................................................................6
Housing, Panels and Covers ......................................................................................................................4
Numerical Index.......................................................................................................................................26
Pump, Motor and Mounting.....................................................................................................................14
Reservoirs, Faucets and Sight Gauges.....................................................................................................18
Strainer and Solenoid Valve Piping (Early Models) ....................................................................................8
Strainer and Solenoid Valve Piping (Late Models) ...................................................................................10
Swing Spout and Mounting......................................................................................................................16
Thermostats and Tank Heaters.................................................................................................................12
328113 081406

4
SRU
HOUSING, PANELS AND COVERS
ATTENTION:TURNOFFWHENUNATTENDED
DISCONNECTFROMPOWERSOURCE
BEFOREREMOVALOF
ANYP
ANELOR
REPLACEMENT OF
ANYCOMPONENT!
WARNING
!
230V MODELS
5 1 4 2 3 1
21
11
12
20
19
18
13
6
8
9
7
10
11
12
14
22
15
17
16
15
P2054.40
28113 080200

ITEM PART NO. QTY. DESCRIPTION
5
HOUSING, PANELS AND COVERS
1 06352.0000 2 Cover, End
01317.0000 4 Screw, Truss Head #8-32 x .50” (230V CE Models)
01319.0000 4 Screw, Thumb #8-32 x .75” (120/240V Models)
00917.0000 4 Fastener, “J” Type #8-32
2 06411.0000 1 Housing
3 29299.0000 1 Decal, Caution - Swing Spout
4 12555.0000 1 Decal, Caution - Hot Surfaces
5 10044.0000 1 Decal, Warning - Shut Off Power
6 06407.0000 1 Plate, Component Mounting
01311.0000 10 Screw, Truss Head #8-32 x .25”
01315.0000 2 Screw, Truss Head #8-32 x .38”
7 07288.0000 2 Gasket, Reservoir Mounting
8 07289.0003 2 Gasket, Panel Mounting - 5.6” LG
9 07289.0002 2 Gasket, Panel Mounting - 13.25” LG
10 06409.0000 1 Housing (Single Service brewers)(120/240V)
- - - - - - - - 1 Housing (Double Service brewers)(Not serviced)(120/240V)
- - - - - - - - 1 Housing (Single Service brewers)(Not serviced)(230V)
- - - - - - - - 1 Housing (Single Service brewers)(Not serviced)(230V Marine Applications)
11 00823.0000 1 Decal, BUNN (One additional used with Double Service brewers)
12 12593.0000 1 Decal, Warning - Very Hot Water (One additional used with Double Service brewers
13 00878.0000 1 Decal, Turn Off When Unattended
14 06434.0000 1 Cover, Front Access (120/240V)
04957.0000 1 Cover, Front Access (230V)
01318.0000 4 Screw, Round Head #8-32 x .50”
00917.0000 4 Fastener, “J”-Type #8-32
15 06427.0000 1 Decal, Full-Half (120/240V)
06427.0001 1 Decal, Full-Half (230V)
16 00731.0000 4 Foot
01390.0000 4 Screw, Round Head #8-32 x .62”
00978.0000 4 Fastener, Flat Type #8-32
17 06351.0000 1 Plate, Bottom
01311.0000 7 Screw, Truss Head #8-32 x .25”
00917.0000 7 Fastener, “J”-Type #8-32
18 06350.0000 1 Cover, Rear Access
01315.0000 4 Screw, Truss Head #8-32 x .38”
00917.0000 4 Fastener, “J”-Type #8-32
19 00831.0000 1 Decal, Warning - Electrical
20 00656.0000 1 Decal, Comply to Plumbing Code
21 06360.0000 1 Cover, Rear Utility
01311.0000 6 Screw, Truss Head #8-32 x .25”
22 32540.0001 1 Decal, Batch Set (Digital Timer - Late Models)
28113 080200

6
SRU
FUNNELS, SPRAYHEADS, FILTER BASKETS AND SUPPORTS
28113 020100
1
2
4
5
6
8
7
9
10
3
P2055

ITEM PART NO. QTY. DESCRIPTION
7
1 00725.0000 1 Knob, Plastic - Black
01315.0000 1 Screw, Truss Head #8-32 x .38”
2 01192.0000 1 Cover
3 07023.0003 1 Cover Assy, Plastic - Black (Includes items 4 & 5)
4 -------------- 1 Cover, Plastic - Black (Not available. Order item 3)
5 07024.1002 1 Sprayhead, Plastic - Black (Includes hardware below, except for acorn nuts)
01339.0000 3 Screw, Pan Head #6-32 x .625”
01520.0000 3 Lockwasher, Split #6
00906.0000 3 Nut, Hex #6-32
6 07175.0000 1 Filter Housing Stand
7 07022.0012 1 Funnel w/Decals, Plastic - Black (Includes irems 8 & 9)
8 03408.0000 1 Decal, Warning - Rermove Funnel Slowly
9 03409.0000 1 Decal, Warning - Hot Liquid
10 07021.0002 1 Support, Funnel Plastic - Black (Refer to Item 12)
11 02564.0000 - Funnel Cover Lid Kit (Includes items 1 & 2)
12 07121.0002 - Funnel Kit, Plastic - Black (Includes items 3,7 & 10)
FUNNELS, SPRAYHEADS, FILTER BASKETS AND SUPPORTS
Refer to Item 11
28113 020100

8
SRU
BUNN
®
FLOW
90psigmaxoperatingpressure
StrainerAssembly #23720.1000
(ReplacementScreen #23721.0000)
BUNN
®
FLOW
90psigmax operatingpressure
StrainerAssembly #23720.1000
(Replacement Screen #23721.0000)
STRAINER AND SOLENOID VALVE PIPING (Early Models)
240V MODELS
SOLENOID REPAIR KIT
28113 081406
240V SOLENOID REPAIR KIT
31
30
32
20
21
22
23
24
25
19
29
28 27 26
3
4
5
2
6
7
1
11
37
34
35
36
37
38
33
39
7
42 43 41 40
16 17 18
15 14 13 12
10 9 8
P2056

ITEM PART NO. QTY. DESCRIPTION
9
STRAINER AND SOLENOID VALVE PIPING (Early Models)
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 (Order item 1)(Refer to Items 27 & 37)
4 01537.0000 1 Washer, Nylon
5 07083.1000 1 Air Chamber
6 07051.1000 1 Tube Assy Inlet (Includes Nut and Ferrules)
7 07075.0000 1 Grommet, Inlet Tube Assy 120V
02536.0000 1 Grommet, Inlet Tube Assy 230V
8 01258.0000 1 Valve, Fill/Drain
9 01536.0000 1 Gasket, Fill/Drain Valve
10 00930.0000 1 Cap, Brass .75”
11 06365.0000 1 Tube Assy - Tee to Solenoid Valve (Includes nut and ferrules)
12 00976.0000 1 Cap .38” Flare
13 07112.0000 1 Tee .38” Male Flare
14 21807.0001 1 Tube Assy - Tee to Strainer
15 23720.1000 1 Strainer Assy (Includes items 16,17 & 18)
16 23723.0000 1 Cap, End
17 23721.0000 1 Screen
18 -------------- 1 Housing, Strainer (Order item 15)
19 07261.0000 1 Repair Kit, Solenoid (Includes items 7, 20 thru 28)
20 -------------- 1 Spring, Plunger (Order item 19)
21 -------------- 1 Plunger Assy (Order item 19)
22 07264.0000 1 O-Ring, Bonnet
23 -------------- 1 Seat, Plunger (Order item 19)
24 -------------- 1 O-Ring, Plunger Seat (Order item 19)
25 -------------- 1 Screen (Order item 19)
26 ------------- 1 Gasket, Orifice Plate (Order item 19)
27 -------------- 1 Diaphragm, Flow 1.0 GPM (Order item 19)
28 01537.0000 1 Washer, Nylon
29 07261.0001 1 Seal Kit, Solenoid (Includes items 7, 20, 22, 23, 24 & 26)
30 07025.0000 1 Coil, Solenoid (120V)(Includes item 31)
07025.0002 1 Coil, Solenoid (240V)(Includes item 31)
31 07050.0000 1 Clip, Spring
32 07272.0000 1 Bonnet, Plunger
33 28043.0000 1 Solenoid Valve Assy, 240V (Includes items 34 thru 38)
34 27907.0000 1 Elbow, .38” MPT x .38” Compression
35 28037.0000 1 Solenoid Valve
36 28040.0000 1 Connector, .38” MPT x .38” Compression
37 00929.0001 4 Nut/Sleeve, .38” Tube
38 28531.0000 1 Tube Assy, Inlet- Solenoid to Housing (Includes item 37)
39 28532.0000 1 Tube Assy, Tee to Solenoid (Includes item 37)
40 28020.0000 1 Coil
41 28021.0000 1 Core Assy Kit (Includes Core, Spring and O-ring)
42 29649.0000 1 Diaphragm and Spring Kit (Includes item 43)
43 29648.0000 1 Spring, Diaphragm
28113 081406

10
SRU
BUNN
®
FLOW
90psigmaxoperatingpressure
StrainerAssembly #23720.1000
(Replacement Screen#23721.0000)
BUNN
®
FLOW
90psigmaxoperatingpressure
StrainerAssembly#23720.1000
(ReplacementScreen#23721.0000)
STRAINER AND SOLENOID VALVE PIPING (Late Models)
28113 081406
22 23 24
21 20 19 18
17 16 15
P3708.40
SOLENOID REPAIR KIT
10
11
12
1
2
3
8
9
13
14
5
4
76

ITEM PART NO. QTY. DESCRIPTION
11
STRAINER AND SOLENOID VALVE PIPING (Late Models)
1 21695.0001 1 Elbow
2 36996.0000 1 Bracket
01327.0000 2 Screw, Pan Head #10-32 x .38”
3 01085.0000 1 Solenoid Valve 120V (Includes items 4 - 7)
01975.0000 1 Solenoid Valve 240V (Includes items 4 - 7)
01327.0000 2 Screw, Pan Head #10-32 x .38”
01501.0000 2 Lockwasher, Split #10
4 01101.0000 1 Solenoid Valve Coil 120V
01100.0000 1 Solenoid Valve Coil 240V
5 01111.0000 1 Solenoid Valve Repair Kit (Includes Plunger, Seal and Spring)
6 01079.0000 1 Solenoid Valve Base
7 01116.0000 1 Sleeve Assy, Solenoid Valve
8 00458.0001 1 Adapter
9 00406.0001 1 Fitting
10 37005.0000 1 Tube
11 27596.0001 1 Flow Control
12 21807.0003 1 Tube
13 07051.1000 1 Tube Assy Inlet (Includes Nut and Ferrules)
14 07075.0000 1 Grommet, Inlet Tube Assy 120V
02536.0000 1 Grommet, Inlet Tube Assy 230V
15 01258.0000 1 Valve, Fill/Drain
16 01536.0000 1 Gasket, Fill/Drain Valve
17 00930.0000 1 Cap, Brass .75”
18 00976.0000 1 Cap .38” Flare
19 07112.0000 1 Tee .38” Male Flare
20 21807.0001 1 Tube Assy - Tee to Strainer
21 23720.1000 1 Strainer Assy (Includes items 22,23 & 24)
22 23723.0000 1 Cap, End
23 23721.0000 1 Screen
24 -------------- 1 Housing, Strainer (Order item 21)
28113 081406

12
SRU
THERMOSTATS AND TANK HEATERS
28113 020100
5 6 3 2 1
4
7
P2057

ITEM PART NO. QTY. DESCRIPTION
13
THERMOSTATS AND TANK HEATERS
1 07185.1000 1 Tank Heater. 3950W @ 208V
07186.1000 1 Tank Heater, 3950W @ 240V
01315.0000 4 Screw, Truss Head #8-32 x .375”
2 12398.0000 1 Gasket, Tank Heater
3 07045.0000 1 Thermostat Kit (Includes items 4,5 & 6)
02328.0003 2 Screw, Pan Head #6-32 x .312”
20762.0000 2 Screw, Binding Head #8-32 x .25”
4 07073.0000 1 Grommet, Thermostat
5 00720.0000 1 Knob, Thermostat Adjustment
6 27923.0000 1 Bracket, Thermostat Mounting
01315.0000 1 Screw, Truss Head #8-32 x .375”
01502.0000 1 Lockwasher #8
7 29329.1000 1 Thermostat, Limit
Includes item 2
28113 020100

14
SRU
6
5
1
2
3
2
4
19
15
16
22
PUMP, MOTOR AND MOUNTING
28113 020100
10
11
18
13
14
7
8
9
20
12
17
21
P2058

ITEM PART NO. QTY. DESCRIPTION
15
PUMP, MOTOR AND MOUNTING
1 -------------- 1 Fitting, Swing Spout Base (See Swing Spout and Mounting)
2 00620.0000 2 Clamp, Cable - Nylon .687” I.D.
01315.0000 2 Screw, Truss Head #8-32 x .38”
00970.0000 2 Nut, Keps #8-32
3 07129.1000 1 Tube, Silicone .438” I.D. x 4.5” LG (See item 24)
4 -------------- 1 Pump Assy, 120V 60HZ (Includes items 5 thru 18) (Order item 23)
-------------- 1 Pump Assy, 230V 50HZ (Includes items 5 thru 18) (Order item 23)
-------------- 1 Pump Assy, 230V 60HZ (Includes items 5 thru 18) (Order item 23)
01315.0000 4 Screw, Truss Head #8-32 x .375”
00912.0000 4 Fastener “J” Type #8-32
5 07044.0000 1 Grommet, Pump
6 -------------- 1 Motor, 120V 60HZ (Order item 23)
-------------- 1 Motor, 230V 50HZ (Order item 23)
-------------- 1 Motor, 230V 60HZ (Order item 23)
7 07014.0000 2 Terminal Housing .25” Spade
8 -------------- 1 Seal (Not Available. Order item 20 or 23)
9 -------------- 1 Retainer, Seal (Order Item 20 or 23)
28623.0000 2 Screw, Pan Head #8-32 x .25”
10 28624.0000 1 Gasket, Seal Retainer
11 -------------- 1 Plate, Pump Mounting (Order item 23)
12 -------------- 1 Pedestal, Pump (Order item 21 or 23)
13 28614.0000 2 Washer, #10
14 28617.0000 2 Thumb Nut, #10-32
15 28628.0000 1 Spring, Impeller (See item 22)
16 -------------- 1 Impeller 60HZ (Order item 22 or 23)
-------------- 1 Impeller 50HZ (Order item 22 or 23)
07167.0000 1 Screw, Impeller
17 28626.0000 1 Base Plate
28626.0001 1 Base Plate (50 Hz)
28629.0000 3 Screw, Pan Head #8-18 x .375”
18 07086.0000 1 Adaptor, Pump
19 07047.0000 1 Gasket, Pump Mounting (Refer to item 23)
20 28632.0000 - Seal/Retainer Assy (Includes items 8 & 9)
21 28618.0000 - Kit, Pedestal/Base Plate/Screws 60HZ (Includes items 12 & 17)
28618.0001 - Kit, Pedestal/Base Plate/Screws 50HZ (Includes items 12 & 17)
22 28631.0000 - Impeller/Spring Assy 60HZ (Includes items 15 & 16)
28631.0001 - Impeller/Spring Assy 50HZ (Includes items 15 & 16)
23 07097.0000 - Pump & Motor Kit, 120V 60HZ (Includes items 2 thru 11 & Instructions)
07097.0008 - Pump & Motor Kit, 240V 50HZ (Includes items 2 thru 11 & Instructions)
07097.0004 - Pump & Motor Kit, 240V 60HZ (Includes items 2 thru 11 & Instructions)
28630.0000 - Kit, Pump Rebuild (60HZ) (Includes items 2,3,5,8,9,10,12 thru 19 & Instructions)
28630.0001 - Kit, Pump Rebuild (50HZ) (Includes items 2,3,5,8,9,10,12 thru 19 & Instructions)
24 07130.0000 1 Cable Tie, Tube Cleaning (Not Illustrated)
28113 021401

16
SRU
1
2
3
4
5
6
SWING SPOUT AND MOUNTING
7
28113 020100
P2059

ITEM PART NO. QTY. DESCRIPTION
17
- 06418.0000 1 Kit, Swing Spout (Includes 1 thru 7)
1 - - - - - - - - 1 Swing Spout (Not Serviced)
2 01201.0000 1 Gasket, Swing Spout
3 07026.1002 1 Shield, Swing Spout
4 01530.0000 2 Washer, Split
5 06420.0000 4 Pin, Swing Spout
6 07011.0000 1 O-Ring, Swivel Body
7 07149.0000 1 Fitting, Swing Spout Base
01359.0000 3 Screw, Flat Head #8-32 x .38”
00970.0000 3 Nut, Keps #8-32
SWING SPOUT AND MOUNTING
28113 020100

18
SRU
RESERVOIRS, FAUCETS AND SIGHT GAUGES
28113 020100
6
7
20
21
10
12
6
7
8
9
10
11
12
13 14 15 16
13 14 16 15
33
24
25
26
27
28
34
23
24
25
26
27
28
29 30 31
43
4
41
42
39
38
37
36
40
1
35
3
32
2 3 22
13 18
16 15
22
32
17
5
P2060
19

ITEM PART NO. QTY. DESCRIPTION
19
RESERVOIRS, FAUCETS AND SIGHT GAUGES
(Continued)
1 06362.0000 1 Reservoir Kit (Single Service brewers)(Includes items 2,3 & 43)
06424.0000 1 Reservoir Kit (Double Service brewers)(Includes items 2,3 & 43)
01311.0000 8 Screw, Truss Head #8-32 x .25”
00917.0000 3 Fastener, “J” Type #8-32
2 07064.0000 1 Gasket (One additional used with Double Service brewers)
3 07079.0000 2 Gasket, Faucet Shank (Two additional used with Double Service brewers)
4 07032.0000 1 Gauge, Water Temperature
5 07060.0000 2 Faucet Shank, W/7.0” Sight Gauge (Includes items 6 thru 16)
6 01293.0000 1 Cap, Sight Gauge
7 01291.0000 1 Washer, Sight Gauge Cap
8 01288.0000 1 Shield, Sight Gauge
9 01265.0000 1 Glass, Sight Gauge
10 01292.0000 1 Washer, Sight Gauge Base
11 01287.0000 1 Brace, Sight Gauge
12 01267.0000 1 Valve, Sight Gauge Shut-Off
13 07119.0000 1 Nut, Faucet Shank
14 -------------- 1 Shank, Faucet (Order item 5)
15 01221.0000 1 C-Ring, Faucet Shank
16 01268.0000 1 Union Nut, Faucet
17 07061.0000 2 Faucet Shank - 3.0” LG (Includes items 15, 16 & 19)
18 -------------- 1 Shank, Faucet (Order item 17)
19 07110.0000 1 Faucet Shank, W/4.0” Sight Gauge (Includes items 6, 7, 10, 12 thru 16, 20 & 21)
20 01218.0000 1 Shield, Sight Gauge - 4.0” LG
21 01298.0000 1 Glass, Sight Gauge
22 07059.0003 1 Faucet Assy, Black Handle (Includes items 23 thru 31)(One additional used with
Double Service brewers)
23 07096.0002 1 Handle, Faucet - Black
24 01219.0000 1 Pin, Faucet Handle
25 07127.0000 1 Bonnet, Faucet
26 00601.0000 1 Spring, Faucet
28113 020100

20
SRU
RESERVOIRS, FAUCETS AND SIGHT GAUGES
(Continued)
28113 020100
P2060
6
7
20
21
10
12
6
7
8
9
10
11
12
13 14 15 16
13 14 16 15
33
24
25
26
27
28
34
23
24
25
26
27
28
29 30 31
43
4
41
42
39
38
37
36
40
1
35
3
32
2 3 22
13 18
16 15
22
32
17
5
19