Bosch GWH-635-ES User manual

Bosch Remote Control
for GWH-635-ES
6 720 606 990 JS

2
Contents
6 720 606 990
Contents
1Declaration of
Conformity FCC 2
2 Remote Control Data 3
3 arts supplied 3
4 Using the Remote
Control 3
5 Maintenance 9
Safety Instructions
BRead the following instructions very
carefully to ensure perfect
operation.
BFollow safety instructions.
1 Declaration of
Conformity FCC
This device eets the require ents of
FCC Directives and is co pliant with
the type-tested sa ple in the relative
FCC test certificate.
Caution: the
re ote control is
waterproof and can
also be used in the
shower . Ne-
vertheless, you
should ensure it is
not i ersed in
water, for instance
in the bathtub .
Caution: The re o-
te control can be
used only in the
following countries:
United States of
A erica and
Canada.
Caution:
Any changes or modifications not
expressly approved by the party
responsible for compliance could void
the user's authority to operate the
equipment.
This device complies with Part 15 of the FCC rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.

3
Remote Control Data
6 720 606 990
2 Remote Control Data
Re ote control for te perature
adjust ent of Bosch water heaters
GWH-635-ES.
Technical Data:
Further Indications:
3 arts supplied
Fig. 1 Parts
1Re ote control
2Re ote control transceiver PCB
3Support
4PCB’s connection cable
4 Using the Remote
Control
4.1 Description of the LCD
Fig. 2 Multifunctional LCD
1Displays te perature, error codes
and functions
2"Re ote control in operation"
indication (signal arriving at re ote
control)
3Device in operation (with burner
on)
4Te perature easure ent unit
(possible in °C and °F)
5Re ote control battery level
indication (weak signal co ing
fro the re ote control)
6Priority function (te perature
cannot be odified by other user
interface when water is running)
7"Security lock" sy bol
Battery power
supply
Alkaline LR 6
2 x 1,5V
Frequency 915 MHz
Type of
protection
IP X6
Remote
control
Up to 6 re ote controls
can be progra ed for
one single appliance..

4
Using the Remote Control
6 720 606 990
4.2 Remote control trans-
ceiver CB installation
re-installation preparation
BRe ove the plug fro the supply
socket.
BRe ove plastic decals on front
panel.
BUndo two Philips head screws
located behind decals.
BLift front cover panel upward and
re ove.
BRe ove the lower cover fro the
control box.
BRe ove the 2 sets of cables fro
the control box PCB.
BUndo connections fro both ignition
cables.
BRe ove holding bracket.
BRe ove control box.
Control box is now out of the appliance
casing.
Remote control transceiver CB
installation
BOpen control box top cover (Fig. 3,
pos. 1).
BRe ove the protective cover (Fig. 3,
pos. 2) fro one face of the support
and fix it to the ain PCB as shown
in Fig. 3.
Fig. 3
BRe ove the other protective cover
and fix the re ote control PCB as
shown in Fig. 4.
Assure that the face of the re ote
control PCB is against the control box.
Warning: For
safety reasons,
disconnect the
power supply to the
heater.

5
Using the Remote Control
6 720 606 990
Fig. 4 Support correct position
BUsing the supplied cable ake the
connection between the ain PCB
and the re ote control PCB as
shown in Fig. 5.
Fig. 5
BClose the control box cover.
BRe-asse ble:
• the control box in the appliance
• all connections between the PCB
and the appliance
• lower cover in the control box
• holding bracket
• front cover panel.
4.3 Remote Control Activa-
tion
BMove the ain switch on the
appliance to the 0 position.
BPress and hold key while at the
sa e ti e turn the ain switch to
“ON” position (I).
LCD shows one nu ber and one
rotating digit.
The nu ber represents the re ote
control which is to be registered, the
first re ote control will be registered
with nu ber “0”, the second with
nu ber “1” and so on.
iBefore the re ote
control will work it will
have to be activated,
using the procedure
described below, and
standing in front of the
appliance.

6
Using the Remote Control
6 720 606 990
The rotating digit shows that the
electronics is expecting a registration.
BHold re ote control in front of the
control panel on the heater and
press si ultaneously re ote control
buttons and until the
te perature indication is shown on
the re ote control LCD.
BSwitch ON/OFF switch to “OFF”
position (0) and then back on (I).
BPress buttons and in
order to reach requested
te perature.
New re ote control is progra ed.
4.4 Hot Water Temperature
Adjustment by Remote
Control
BPress the buttons or on
the re ote control (Fig. 6, pos. 2)
until the required te perature
appears on the re ote control
display (Fig. 6, pos. 1).
BWhen the required te perature is
defined, turn on the hot water tap.
BThe required te perature will flash
on the re ote control display.
BThe flashing will stop when the
required te perature is reached
(tolerance fro selected set point -5
+ 3 °K).
Fig. 6 Temperature a justment
4.5 " rogram" Button on the
Remote Control
Memorizing the water
temperature with the remote
control " rogram" button
BPress the buttons or on
the re ote control (Fig. 7, pos. 2), )
until the required te perature
appears on the re ote control
display (Fig. 7, pos. 1).
BYou will now be able to e orize
this te perature by keeping the
"Progra " button on the re ote

7
Using the Remote Control
6 720 606 990
control (Fig. 7, pos. 3) pressed for 3
seconds.
Fig. 7 Memorising water
temperature
BOnly one teperature can be
e orized using the "Progra "
button on the re ote control.
BAt this point the re ote control will
display the e orized te perature .
When the hot water tap is turned on,
the water heater will supply hot
water at the te perature e orized
on the re ote control.
If the te perature was e orized
using re ote control buttons (it is
possible to co bine up to six re ote
controls), it can only be odified whilst
hot water is flowing if the sa e re ote
control is used again (see chapter 4.6
"Priority Function").
Using the " rogram" button
(operation with memorized
temperature)
To operate the equip ent with a
previously e orized te perature:
BPress the "Progra " button on the
re ote control.
The re ote control display or control
panel will now show the previously
e orized te perature. When the hot
water tap is turned on, the water heater
will supply hot water after a few
seconds, at the e orized
te perature.
iApart fro the
te perature that can be
e orized using the
"Progra " button on the
control panel, a second
te perature can be
e orized on each
re ote control using the
"Progra " button, to
eet the needs of each
user.

8
Using the Remote Control
6 720 606 990
4.6 " riority" function
The equip ent does not have a default
te perature setting and therefore has
no default "Priority" function.The
"priority" will be attributed
auto atically by the first user who
selects or e orises (on the re ote
control or on the control panel) a
te perature for subsequent use (e.g. a
shower).
Then, when the hot water is used (e.g.
for a shower), the control panel display
and re ote control/s display will show
the sy bol " ".
The te perature ay only be odified
using the sa e buttons that
e orized it (depending on whether
the control panel or the re ote control
was used).
The "Priority" function ends:
•5 inutes after the last use of the
hot water (return to basic set up).
•2 inutes after selecting/
e orizing the te perature if no hot
water is used i ediately
afterwards.
Acquiring "priority”
Any user can acquire "priority" for
subsequent use of hot water, as
follows:
BMove ain switch to position I.
BKeep button or button
pressed.
BSelect the required te perature.
BPress the "Progra " button for 3
seconds to e orize the
te perature, if required.
BUse the hot water within two
inutes of acquiring "priority.
4.7 Error Messages
This device has an error essage
syste . Any ano alies will be
iTe perature cannot be
e orized or selected
using the control panel
buttons or even a
second re ote control
when hot water is in use
(e.g. during a shower)
since the "Priority"
function will
auto atically start up to
stop another user
odifying the
te perature when hot
water is in use.
i"Priority" cannot be
acquired whilst the hot
water tap is open.

9
Maintenance
6 720 606 990
indicated by an error code that will
appear on the display (Fig. 2, pos. 1)
and by a sy bol indicating a "safety
block" (Fig. 2, pos. 7). The device will
be operative once again following the
eli ination of the fault and after
pressing the reset button.
To identify the type of ano aly, consult
chapter 5 of the installation anual.
5 Maintenance
5.1 Replacing batteries
When batteries are flat, the sy bol
(Fig. 2, pos. 5) will appear on the
display.
BRe ove the two screws on the back
of the re ote control.
BOpen the battery housing and
re ove the flat batteries, then
replace with new batteries, ensuring
they are inserted correctly.
BClose the battery housing using the
two screws.
5.2 Cleaning
Use a da p cloth to clean parts of the
re ote control. No abrasive or solvent-
based detergents are needed.
iCertify that the rubber
seal is correctly fitted
between both plastic
housing parts.
Warning: flat bat-
teries ust be
replaced.
Consequently, the
anufacturer is not
liable for any faults or
da age caused by
flat batteries.
Do not create litter
with flat batteries:
ensure they are
disposed of in the
specific refuse con-
tainers.

10
Maintenance
6 720 606 990

11
Maintenance
6 720 606 990