Stern Behind mirror Soap Dispenser B Product manual

InstallatIon and maIntenance guIde
 BEHIND MIRROR TOUCH FREE SOAP DISPENSER
 BEHIND MIRROR TOUCH FREE FOAM SOAP DISPENSER
SOAP DISPENSER FOAM SOAP DISPENSER


IndeX technIcal data
BTM FOAM E 
BEHIND MIRROR SOAP DISPENSER B 
BEHIND MIRROR SOAP DISPENSER E 
Capacity  Liter \ . oz.
Power Supply liquid soap dispenser  Battery box for 6xD batteries
 V transformer
Power Supply foam soap dispenser V transformer
Soap viscosity BTM Soap dispenser B/E  CPS
Soap viscosity BTM Foam E up to  cPs
Standard discharge BTM Soap dispenser B/E .CC customizable by optional remote
control)
Standard discharge BTM Foam E Varies according to viscosity and soap consis-
tency
Sensor range  mm +/  mm /..” (customiz-
able by optional remote control)
 TECHNICAL DATA
 PREINSTALLATION INFORMATION
 PACK CONTENTS
 INSTALLATION
 FILLING THE SOAP TANK
 REMOTE CONTROL FUNCTIONS  LIQUID SOAP DISPENSER
 BATTERIES REPLACEMENT
 REMOTE CONTROL FUNCTIONS  FOAM SOAP DISPENSER
 MAINTENANCE
 SPARE PARTS LIST
 TROUBLESHOOTING
 LIMITED WARRANTY

 
Check contents
Separate all parts from the packaging and check each part with the “Pack contents” section.
Make sure all parts are accounted for before discarding any packaging material.
If any parts are missing, do not attempt to install your touch free soap dispenser until you
obtain the missing parts.
Warnings
Do not install the system facing a mirror or any other electronic system operated by an
infrared sensor.
To prevent reflection problems, it is recommended to keep a minimum distance of
 mm between the soap dispenser and any other objects.
Stern soap dispensers, with proper care, will provide long term trouble free service. Quality
liquid soap of recommended viscosity and pH levels are the main factors for smooth operation
of your dispenser. If needed, use a viscometer to verify the viscosity of your soap to ensure
maximum benet. The recommended range for liquid soap viscosity is  cPs and for
foam - up to  cPs. Thicker liquid soap flows slower and inhibits the pump valve, causing
strain and damage.
Stern soap dispensers are suitable for use with any generic liquid soap of the correct viscosity
and pH. The pH level of all soap used in Stern soap dispensers should be between . to
.. Lower levels will cause corrosion to the metal dispenser and even the rubber and plastic
components. Higher pH levels will cause swelling to rubber parts and degradation of plastic
components over time.
Important: Pay attention that the dimensions of the mirror compartment t the
dimensions of the Behind Mirror Soap Dispenser mounting plate.
Familiarize yourself with the part names and ensure that all the parts are included in your
package.
Pack contentsPRe-InstallatIon InFo
BEHIND MIRROR FOAM SOAP DISPENSERBEHIND MIRROR SOAP DISPENSER
Product assembly containing: pump,
air compressor, bottle support, mounting
plate with spout and soap tank
Product assembly containing: pump, bottle
support, mounting plate with spout and
soap tank
 screws up to mm (not supplied) screws up to mm (not supplied)
e VeRsIonsb VeRsIons
V TransformerV Transformer
Battery Box for 6xD Alkaline
batteries
NOTE: Please ensure the cabinet base panel is not thicker than mm
Max mm

 
InstallatIon
steP 1 – PRePaRatIon FoR InstallatIon
If needed cut a hole in the bottom of
the mirror compartment for both soap
dispenser sensor and spout.
steP 2 – InstallIng the soaP dIsPenseR
Remove the protective sticker
covering the sensor.

Place the soap dispenser
assembly inside the mirror
compartment with the spout
sticking out of the hole.

Secure the plate to the wall
with  screws (not supplied).

steP 3 - connectIng the PoweR souRce
O-RING VISIBLE –
NOT CONNECTED PROPERLY
ONLY THE GROOVES ARE VISIBLE –
CONNECTED PROPERLY
Make sure that the
 contacts connector is connected
properly so that the white o-ring is
not visible.
Pay attention: If the  contacts
connectors are not connected
properly, the pump will work
continuously.

FROM THE SOAP
DISPENSER
TO THE
BATTERY BOX
OBSERVE
POLARITY
A. For battery versions:
Insert six (6) ‘D’-size alkaline
batteries into the battery box.
Be sure to observe polarity
conguration.
Install the battery box next to the
BTM unit.
Connect the battery connector.
Ensure adequate clearance to allow
removal of the top cover and the
battery carrier tray when a battery
replacement is necessary.

OBSERVE POLARITY
FROM THE
TRANSFORMER
TO THE SOAP
DISPENSER
B. For AC Adapter versions:
Connect the transformer
connector to the matching
connector from the sensor and
plug the transformer into the
electricity socket.
10
SECONDS
about
Wait about  seconds before
placing your hands within the
sensor range to avoid adjustment
mode.

InstallatIon
 mm  mm
25
Soap dispenser Foam Soap dispenser

 
FIllIng the soaP tank settIngs adJustment wIth
a Remote contRol lIquId soaP dIsPenseR
Unscrew the soap tank from the pump assembly and
pull it out from the bottle support.
Fill the bottle with liquid soap to the top line. Make
sure the bottle is clean before lling it with soap.
Insert the bottle back into the bottle support.
Screw the soap tank back into the pump assembly.
Make sure the tank is rmly secured into place.

Press and hold the rell button located at the back of
the pump assembly until soap is dispensed from the
soap dispenser spout.
Release the button once soap begins dispensing from
the spout.
Alternately, use the FILL function on the remote control
(if available). see page /.
Note: When the soap in the soap tank reaches the
bottom line, the tank needs to be relled.
To rell the soap tank please refer to steps .
If available, the soap dispenser remote control can adjust the dispenser’s settings. To
use the remote control hold it in front of the sensor at a distance of cm (”).
Attention: The remote control will not operate out of the recommended range (too
close or too far).
The remote control can be used to adjust the following functions:
1-soaP quantItY
The  drop keys allow the user to choose the desired soap quantity.
. to . cc * . to . cc . to . cc . to .cc
Indication: continuous blinking of the light in the sensor eye.

3

4
2-adJ
This function resets the sensor back to factory
settings.
Indication:  blinks of the light in the sensor eye.
3-temPoRaRY oFF FunctIon
This function temporary disables the
dispenser. Use this function to preform
maintenance in front of the sensor without
activating the system (for example: cleaning).
The soap dispenser will shut o for one minute
aer this button is pressed once.
To return to normal operation before the
minute is over, press the On/O button again.
Indication: OFF –  fast blinks, ON –  fast blinks
4-FIll the soaP tank
Once the soap tank has been lled \ relled,
press the FILL button. The pump will run for one
minute, priming the piping with soap. Once
soap begins dispensing from the spout, priming
is complete. press the FILL button again to stop
the priming before the minute is over.
Indication: continuous solid light in the sensor
eye.
If your model is an MF model, please refer to the Multifeed installation guide.

 
batteRY RePlacement
Liquid soap dispenser battery model only
To replace the battery in battery models:
. Carefully open the battery box, use a . mm Allen key
. Remove the old batteries
. Replace the used batteries with new D-size batteries
. Close the box.
NOTE: Do not mix used batteries with new ones.
Important: Spent batteries should not be disposed of with normal
household waste. Contact your local authority for information
regarding waste disposal and recycling.
settIngs adJustment wIth
a Remote contRol
Foam soaP dIsPenseR
If available, the foam dispenser remote control can adjust the dispenser’s settings. To
use the remote control hold it in front of the sensor at a distance of cm (”).
Attention: The remote control will not operate out of the recommended range (too close
or too far).
The remote control can be used to adjust the following functions:
1-soaP quantItY
Press the + sign on the SOAP button to increase the soap quantity by increasing the
dispensing time. Press the - button to decrease it.
Indication: continuous blinking blue light in the sensor eye.
2-aIR quantItY
To improve soap consistency (“foamability) change the amount air to be mixed. Press
the + sign on the AIR button to increase the air quantity and the - to
decrease it.
Indication:  blinks of the blue light in the sensor eye.
3-Res
This function resets the sensor back to its factory settings.
4-temPoRaRY oFF FunctIon

3
5

4
This function temporary disables the
dispenser. Use this function to preform
maintenance in front of the sensor without
activating the system (for example: cleaning).
The soap dispenser will shut o for one
minute aer this button is pressed once.
To return to normal operation before the
minute is over, press the On/O button again.
5-FIll the soaP tank
Once the soap tank has been lled \ relled,
press the FILL button. The pump will run for
one minute, priming the piping with soap.
Once soap begins dispensing from the spout,
priming is complete. press the FILL button
again to stop the priming before the minute
is over.
Indication: continuous solid blue light in the
sensor eye.

 
maIntenance
Care and cleaning of chrome and special nishes
DO NOT use steel wool or cleansing agents containing alcohol, acid, abrasives, or the like.
Use of any prohibited cleaning or maintenance products or substances could damage the
surface of the soap dispenser. For surface cleaning use ONLY soap and water, then wipe dry
with a clean cloth or towel. When cleaning bathroom tiles, the soap dispenser should be
protected from any splattering of harsh cleansers.
Disassemble of the soap pipe from the pump
The soap pipe can be disconnected from the soap pump by a simple slide & pull action. The
sliding ring of the quick connection xation nipple on the pump should be pulled down. It
releases the open end of the soap pipe which can then be easily pulled out.
Filter cleaning instructions (foam dispenser only)
This soap dispenser is provided with a foam lter. It is recommended to clean the lter
every six () months.
If the soap supply has decreased, this may be caused by the clogged lter. The lter can be
cleaned as follows:
. Unscrew the quick connection tting from the top of the foam compressor and pull out
the lter housing.
. Remove the lter from the housing and wash it under running water.
. Reassemble the parts.
Clean the soap tank
Clean out the tank prior to rell by flushing warm water through the hoses and pump until
clean water is released from the spout. TIP: Keeping a spare tank will enable this process to
be completed in a speedy and hygienic manner with minimal downtime.
sPaRe PaRts lIst
PACK SENSOR KIT  LIQUID 
PACK SENSOR KIT  FOAM 
SOAP DISPENSER PUMP LIQUID/FOAM 
FOAM DISPENSER PUMP+COMPRESSOR KIT 
SOAP DISPENSER SPOUT KIT LIQUID ONLY 
PACK L SOAP TANK 
PACK BOTTLE SUPPORT KIT 
PACK FOAM DISPENSER FILTER 
BATTERY BOX FOR XD BATTERIES LIQUID ONLY 
V TRANSFORMER EU 
V TRANSFORMER UK 
V TRANSFORMER US 
V TRANSFORMER AU 
REMOTE CONTROL FOR SOAP DISPENSER OPTIONAL 
REMOTE CONTROL FOR FOAM DISPENSER OPTIONAL 
SOAP & WATER REMOTE CONTROL OPTIONAL 

 
tRoubleshootIng tRoubleshootIng
IllustrationSolutionCauseInvestigationIndication
O-RING VISIBLE –
NOT CONNECTED PROPERLY
ONLY THE GROOVES ARE VISIBLE –
CONNECTED PROPERLY
The connector should be inserted fully
until the white o-ring is not visible.
Remove the o-ring if necessary
AUX connector not
fully inserted
Sensor is
blinking
when hand
is placed in
front
Pump is
not making
sound when
the sensor is
activated
Soap/Foam
not dispensing
Press
Replace the Pump. Rinse warm water
through the pipe and the body of the
soap dispenser all the way to the
nozzle.
Rell button on pump
does not activate the
pump.
Damaged pump
(discharge from
housing).
Run warm water through pipe, pump,
and body all the way to the nozzle.
Replace with soap of correct viscosity.
NOTE: Using the soap dispenser
with high viscosity soap may cause
permanent damage to the pump and
shorten the lifecycle.
Debris or dried soap in
the tank or tubing
Rell
button
Transformer: Check operation with
functioning transformer. Where
necessary replace with appropriate
transformer. For part numbers see
spare parts list.
Rell button on pump
does not activate the
pump.
Sensor is
not blinking
when hand
is placed in
front
Battery: Check operation with
functioning battery pack. Where
necessary, replace batteries or replace
the battery pack: Battery pack (without
batteries)
Min  mm
Bottom of the washbasin
Eliminate any cause of reflection and
use appropriate remote control to
shorten detection range.
Reflection issue from
basin or other object
Replace sensor
If the above two solutions have not
resolved this issue replace with
appropriate sensor. For part numbers
see spare parts list.
Damaged sensor
IllustrationSolutionCauseInvestigationIndication
O-RING VISIBLE –
NOT CONNECTED PROPERLY
ONLY THE GROOVES ARE VISIBLE –
CONNECTED PROPERLY
The connector should be inserted fully until
white o-ring is not visible. Remove the o-ring if
necessary
AUX connector not
fully inserted
Continuous
discharge from the
nozzle
False
activation:
Soap/Foam
dispensing
Min  mm
Bottom of the washbasin
Eliminate any cause of reflection and if
necessary use appropriate remote control to
shorten detection range.
Reflection issue
from basin or
other object
Random discharge
from the nozzle
Replace the Pump. Rinse warm water through
the pipe and the body of the soap dispenser all
the way to the nozzle.
Damaged pump
due to high
viscosity or debris
in pipes
Soap discharging
from pump housing.
Fill with soap with correct viscosity
(   cPs for liquid soap and up to  cPs
for foam) and prime pipes using the ll button
on remote control.
Soap tank is
empty
Pump and/or
compressor making
sounds when sensor
is activated
Soap/Foam
not dispensing
Press
FILL
Button
Prime the soap dispenser by pressing the ll
button on the remote or by pressing the rell
button located at the bottom of the pump, until
soap exits the nozzle.
Soap dispenser
has not been
primed
Replace the PumpDamaged pump
(discharge from
housing)
Run warm water through pipe, pump, and body
all the way to the nozzle. Replace with soap of
correct viscosity.
NOTE: Using the soap dispenser with high
viscosity soap may cause permanent damage to
the pump and shorten the lifecycle.
Debris or dried
soap in the pipe
or tank
Soap Viscosity
   cPs
for liquid soap
and up to  cPs
for foam)
High viscosity
soap
(>  cPs for
liquid soap or
>  cPs for foam)
Unbend or straighten pipes.Bent pipes

 
IllustrationSolutionCauseIndication
. Increase the air to soap
ratio.
Liquid rather than
foam is being
dispensed out of
the nozzle
Foam not dispensing
. Verify that the lter is
clean.
. Replace compressor
(supplied with pump). For
part numbers see spare
parts list.
Use remote to decrease soap
volume by pressing the "-
Soap" key.
Foam dosage is too
large
Foam is dispensing
Use remote to increase soap
volume by pressing the "+
Soap" key.
Foam dosage is too
small
Use remote to decrease the
amount of air in the foam by
pressing the "- Air" Key.
Foam is too dense
Use remote to increase the
amount of air in the foam by
pressing the " + Air" key.
Foam is too
liqueed
tRoubleshootIng lImIted waRRantY
Y. Stern Engineering Ltd. warrants that its electronic products will be free of defects in
material and workmanship during normal use for two years from the date the product is
purchased.
If a defect is found in normal use, Y. Stern Engineering Ltd. will, at its discretion, repair,
provide a replacement part or product, or make appropriate adjustments. Damage caused
by accident, misuse, or abuse is not covered by this warranty. Improper care and cleaning
will void the warranty. Proof of purchase (original sales receipt) must be provided to Stern
Engineering Ltd. with all warranty claims.
Stern Engineering Ltd is not responsible for labor charges, installation, or other incidental
or consequential costs other than those noted above. In no event shall the liability of
Stern Engineering Ltd. exceed the purchase price of the product.
If you believe that you have a warranty claim, contact your Stern Distributor, Dealer or
Plumbing Contractor. Please be sure to provide all pertinent information regarding your
claim, including a complete description of the problem, the product, model number,
the date the product was purchased, from whom the product was purchased and the
installation date. Also include your original invoice.
Y. STERN ENGINEERING AND/OR SELLER DISCLAIM ANY LIABILITY FOR SPECIAL, INCIDENTAL
OR CONSEQUENTIAL DAMAGES. This warranty excludes product damage due to installation
error, incorrect maintenance, wear and tear, battery, product abuse, or product misuse,
whether performed by a contractor, service company, or the consumer. This warranty does
not cover product damage caused by the following:
- Incorrect installation.
- inversions of supply pipes.
- Pressures or temperatures exceeding recommended limits.
- Improper manipulation, tampering, bad or lapsed maintenance.
- Foreign bodies, dirt or scale introduced by the water supply or soap tank.
- Use of the soap outside of viscosity specications.
- Alteration of the original soap/foam dispenser components (including pipes).

 

. D
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