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1-1/4"

32mm

1-1/2"

40mm

1/4"

6mm

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Designer Series Automatic, Counter-Mounted Soap Dispenser 

INSTRUCTIONS FOR INSTALLATION, OPERATION & MAINTENANCE

BOBRICK MODELS B-850, B-852, B-855, B-856, B-858 LIQUID SOAP DISPENSER

Unit Diagram:

Item Description

Top Assembly with Spout, Door and Stem

LED Light Pipe

Liquid Nozzle Tip

Fiber Optic Insert with Sensor Lenses

Rubber Counter Gasket

Wave Washer

Mounting Nut

Stem Mounting Nut

Duckbill Housing

10 

Bottom Housing Assembly (includes Soap Bottle)

11 

(3) Fiber Optic Cables for Sensor and LED Light Pipe

12 

Fiber Optic Connector Tip Assembly

13 

Fiber Optic Nut

14 

Portion Control Knob

15 

Automatic System Flush Button

16 

Key Hole

17 BobKey
18 

A/C Adapter Kit with U.S. Plug, Order Part No.  

3974-57. Optional: International AC Adapter Plug Kit  

(UK, Europe Australia) 3974-55

© 2020 by Bobrick Washroom Equipment, Inc.

Form No. 858-191     r7/24/20    Printed in U.S.A.

Clearances and Mounting Requirements:

• 1-3/8" (35mm) diameter mounting hole required.

• Minimum 18" (457mm) vertical clearance needed below the counter.

• 5" (127mm) diameter clearance needed below the mounting hole to

accommodate bottle and bottom housing.

• Minimum 2-1/4" (57mm) diameter clearance needed for Mounting nut directly

below the counter to clear sink rim.

• Recommend drilling mounting hole 6" to 8" (152 to 203mm) from the wall,

and 2-1/2" to 3" (64 to 76mm) from sink rim.

Routine Cleaning and Maintenance:

Using a damp cloth, wipe the chrome-plated exterior of the dispenser daily. Periodically (about 3 to 6 months), it is 

recommended to flush the system with lukewarm water for cleaning and maintenance.

1.  When minimal amount of soap is left in the bottle, fill dispenser with lukewarm water from top  

to dilute soap.

2.  Press the Automatic System Flush Button to flush the system.

3.  Once unit is flushed, press the Automatic System Flush Button again to stop dispensing.

4.  Fill unit with fresh soap and dispense as usual.

For Retrofit:

1. Remove existing dispenser(s).

2. Clean area.

3. Ensure hole is 1-3/8" (35mm) diameter.

4. If necessary, enlarge opening using appropriate hole saw. For granite/marble counters, recommend using a diamond

hole saw (consult with stone and granite specialist). If needed, mounting hole should be offset to clear the sink rim. The Mounting

Nut requires 2-1/4" (57mm) diameter clearance directly below the counter.

To Operate:

Troubleshooting: 

1.  Soap dispenser does not dispense soap, but you can hear motor running. The green LED lights up when hands are 

under spout.

a.  Press the Automatic System Flush Button until soap comes out. 

b.  Press the Automatic System Flush Button again to turn it off.

2.  Soap dispenser does not dispense soap and you cannot hear motor running. The green LED does not light up when 

hands are under spout.

a.  Be sure power is supplied to unit.

b.  Make sure Fiber Optic Nut is tight on Fiber Optic Port.

Warranty:

SureFlo Automatic Liquid Soap Dispenser is warranted to be free from defects in workmanship and material under normal 

usage from the date of purchase for a period of 3 years.

For New Installation:

• Refer to mounting template for drilling locations (Form No. 824-307).

1. 

Prime Unit –

 After filling  

dispenser, plug in power 

to start prime. If unit is  

plugged in prior to filling  

dispenser, place hand 

under spout within sensor  

location to start prime.

2. 

Standard Dispense –

 

Place hand under spout  

within the sensor location  

for approximately 1/2  

second to dispense  

controlled amount of  

liquid hand soap.

3. 

Adjusting amount of soap

dispensed –

 Depending on 

viscosity of liquid soap used,   

unit may dispense between  

0.4 ml to 3 ml of soap. To  

reduce output of liquid soap,   

rotate Portion Control Knob  

counter-clockwise. To 

increase the output of liquid  

soap, turn the knob clockwise.

4. 

LED Light Indicators –

 

When in standby mode,  

LED will flash green. 

 

LED will turn off during  

dispense. If red light is  

flashing, remove hand to  

allow unit to reset. Hand  

must be removed for a  

second activation.

In the United States: BOBRICK WASHROOM EQUIPMENT, INC.

New York

: 200 Commerce Drive, Clifton Park, NY 12065-1350 • Tel: (518) 877-7444 • Fax: (518)-877-5029

Los Angeles

: 6901 Tujunga Ave, North Hollywood, CA  91605-6213 • Tel: (818) 982-9600 • Fax: (818)-503-9287 

or email [email protected]

In Canada: BOBRICK WASHROOM EQUIPMENT COMPANY

45 Rolark Drive, Scarborough, Ontario M1R 3B1 • 

Eastern Canada

: Tel: (877) 423-6555 • Fax: (877) 423-8555

• 

Western Canada

: Tel: (877) 423-6444 • Fax: (877) 423-8444 or email [email protected]

Scan For SureFlo Installation and

Maintenance Instructions.

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WWW.RESTROOMDIRECT.COM      704•937•2673     129 Oakpark Dr., Unit A, Mooresville, NC 28115

Summary of Contents for Bobrick SureFlo B-850

Page 1: ...ne and granite specialist If needed mounting hole should be offset to clear the sink rim The Mounting Nut requires 2 1 4 57mm diameter clearance directly below the counter To Operate Troubleshooting 1 Soap dispenser does not dispense soap but you can hear motor running The green LED lights up when hands are under spout a Press the Automatic System Flush Button until soap comes out b Press the Auto...

Page 2: ...uid Soap within a viscosity range of 100 to 19 000 cP 1 Insert tip of BobKey provided into opening of concealed locking mechanism to disengage door 2 Door will disengage and rotate clockwise for filling from the top 3 Fill dispenser with commercially marketed bulk liquid hand soap Do not use foam liquid 4 Close door counter clockwise to lock in place Replacement Parts List Part Name Part No A C Ad...

Page 3: ...uid Soap within a viscosity range of 100 to 19 000 cP 1 Insert tip of BobKey provided into opening of concealed locking mechanism to disengage door 2 Door will disengage and rotate clockwise for filling from the top 3 Fill dispenser with commercially marketed bulk liquid hand soap Do not use foam liquid 4 Close door counter clockwise to lock in place Replacement Parts List Part Name Part No A C Ad...

Page 4: ...ne and granite specialist If needed mounting hole should be offset to clear the sink rim The Mounting Nut requires 2 1 4 57mm diameter clearance directly below the counter To Operate Troubleshooting 1 Soap dispenser does not dispense soap but you can hear motor running The green LED lights up when hands are under spout a Press the Automatic System Flush Button until soap comes out b Press the Auto...

Page 5: ...of Mounting Hole 6 152mm 7 178mm Drill 1 3 8 35mm Diameter Hole 7 178mm 8 203mm Recommemded Mounting Distance to Finish Face of Wall Between 6 to 8 154 to 203mm 2 1 2 to 3 64 to 76mm from Sink Rim to center of Mounting Hole RIGHT SIDE MOUNTING TEMPLATE LEFT SIDE View from Top of Counter View from Top of Counter WWW RESTROOMDIRECT COM 704 937 2673 129 Oakpark Dr Unit A Mooresville NC 28115 ...

Page 6: ...on left or right side Ensure sink and plumbing fixtures DO NOT interfere with dispenser above or below the counter refer to clearances 2 Drill 1 3 8 35mm diameter hole X 1 1 2 38mm Maximum Y 1 25mm Maximum X 2 1 2 63mm Maximum Y 1 2 12mm Maximum Option A Option B Sinks with Rim Over the Counter Area Unit is not compatible with a sink rim greater than the maximum dimensions listed below In the Unit...

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