clage German Pool DEX12 User manual

WH-DEX-12-M-18(6)
Please read these instructions and warranty information carefully
before use and keep them handyfor future reference.
USER MANUA L
歐 盟 A 級 能 源 效 益 認 證
EU ENERGY EFFICIENCY CLASS A
Printed in Germany
DEX12
Instantaneous Electric
Water Heater
OnlineWarranty Registration

Contents
P.3
1. Overview
2. Safety instructions
3. Technical specifications
4. Dimensions
5. Installation
Installation site
Mounting accessories
Installing the wall bracket
Installing connection pieces
Installing the appliance
6. Direct connection
7. Electrical connection
Wiring diagram
Structural prerequisites
Electrical connection from below
Electrical connection from above
8. Initial operation
Selection of power rating
Shower application
Reinstallation
Lock level
9. Service menu
10. Maintenance work
Cleaning and replacing the filter strainer
Cleaning and replacing the filter strainer if direct connected
11. Environment and recycling
12. How to use
13. Troubleshooting
Quick reference guide
04
05
08
09
09
09
10
11
12
12
13
14
14
14
15
16
17
17
18
18
18
19
21
21
22
22
23
26
27
Note: Carefully read the enclosed safety instructions through in full before using the appliance
and follow them during use.
請即進行保用登記﹗
有關保用條款細則，請看本說明書最後一頁。
Please register your warranty information now !
For Warranty Terms & Conditions,
please refer to the last page of this user manual.

2.Safety Instructions
P.5
1.Overview
P.4
When ordering spare parts, please always specify the appliance model and serial number.
Connecting pipe
PCB cover
Bottom part
PCB
Control panel support
Connecting terminal
Inlet pipe
Cold water connection
Water splash protection
sleeve
in Set
GrommetScrew-in nipples ½”
Fine filter
Flow limiter 5 l/min
Frame
DEX hood
Non-return valve
Flow sensor
Thermal sensor set
Safety thermal
cut-out
DEX control panel
Outlet pipe
Hot water
connection
Wall bracket
Heating element
including safety
pressure cut-out
Warning
Please read these instructions carefully before installing or using the appliance! Keep the instructions
handy with the appliance for future use!
Part1-11 is intended for the specialist who is responsible for the installation of the appliance. Part2,
12 and 13 are for the end user. The provided manuals correspond to the technical specifications of the
appliance.
The latest version of the instructions can be found online at German Pool website.
- Do not use the appliance until it has been correctly installed and unless it is in perfect
working order.
- The appliance is only suitable for domestic use and similar applications inside closed, frost-
free rooms, and must only be used to heat incoming water from mains supply.
- The appliance must never be exposed to frost.
- The appliance must be earthed at all times.
- The minimal specic water resistance must not fall below the value stated on the label.
- Do not remove the front cover under any circumstances before switching off the electrical
supply to the unit.
- Never make technical modications, either to the appliance itself or the electrical leads and
water pipes.
- Pay attention to the fact that water temperatures in excess of approx. 43 °C are perceived as
hot, especially by children, and may cause a feeling of burning. Please note that the ttings
and taps may be very hot when the appliance has been in use for some time.
- The values stated on the rating plate must be observed.
- In case of malfunction, disconnect the fuses immediately. In case of leaks, cut off the cold
water supply instantly. Repairs must only be carried out by the customer service department
or an authorised professional.
- This appliance can be used by children aged from 3 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if they
have been given supervision or instruction concerning use of the appliance in a safe way
and understand the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.

2.安全守則
P.7
2.Safety Instructions
P.6
• If the appliance is factory equipped with a power supply cable, it must be replaced with an
original spare cable from the manufacturer in case of damaged by an authorized technician
in order to avoid any hazards.
• In accordance with VDE 0700, a circuit breaker with a contact opening gap of at least 3 mm
for each pole must be provided on the mains side of the connecting box for appliances with
a xed connection.
• The wall bracket must be secured with the supplied screws and dowels. The appliance must
be secured to the wall bracket. The appliance may only be operated if it has been properly
mounted on the wall bracket.
• The prescribed nominal pressure stated on the rating plate may not be exceeded at any
time.
• The required water resistance may not fall below the value stated on the rating plate at any
time. To observe additionally for pressure less installation:
• The water outlet behind the devices must not be blocked, an d the water ow must not be
restricted.
• The water outlet facilities, such as shower head, jet control and other outlet unit, must be
decalcied regularly. Deposits must be removed in regular intervals.
• Only the ttings recommended by the manufacturer may be used.
• If the appliance is exclusively connected to a single shower, only the shower heads
recommended by the manufacturer may be used. No other ttings or appliances which
decrease the water ow to the shower may be installed.
注意
本熱水器必需由合格技師負責安裝、初始操作及保養，以確保符合有關安全標準及安裝條例。
本公司對未遵照此規定而引致之損失或問題概不負責。
安裝及使用本熱水器前請仔細閱讀本說明書。妥為保存說明書。
說明書1-11部分為負責安裝的專業人員必讀內容。第2、12和13部分為使用者必讀內容。本說
明書內容與產品的技術規格相一致。
本說明書最新版本請查閱德國寶官方網站。
- 熱水器尚未完全穩妥安裝或被確定一切操作正常之前，請勿使用熱水器。
- 本熱水器只適宜用於室內不結霜的環境作家居用途，並只適宜將自來水加熱。
- 切勿將本熱水器暴露於結霜的環境中。
- 本熱水器必須時刻接地。
- 來水電阻不可低於規格表上列明之數值。
- 任何情況下，在關掉電源前，不能打開面蓋。
- 切勿對本熱水器(包括熱水器機體、電線或水管)作出任何技術性改動。
- 請注意溫度高於43°C的水會被界定為熱水(對於小童尤甚)，並可引致燙傷。熱水器經
使用一段時間後，水喉配件可能會很熱。
- 必須注意銘牌上所標籤之數值。
- 如遇上故障，請即關掉電源。如有漏水，應即關掉冷水水源。並必須由總代理的合格技
師維修。
- 除有負責其安全的人士監督或收到如何使用本熱水器指示，否則任何活動能力有限或情
緒、神智有問題的人士不可使用本熱水器。必需監督兒童以確保兒童不會把玩熱水器。
- 如果熱水器配備的原廠電源線損壞，必須用原廠電源線並由授權之專業人員更換，以避
免發生危險。
- 固定連接的熱水器，接線箱必須要有符合VDE 0700標準的斷路器，斷路器每一極的接觸
開口至少要有3厘米。
- 掛接背板必須用螺絲和壁塞固定在牆上，然後將熱水器安裝在掛接背板上。熱水器必須
正確裝妥於掛接背板，才能正常運作。
- 任何時候，水壓力都不可超過銘牌上的數值。
- 任何時候，來水電阻都不可低於銘牌上的數值。
- 無壓安裝須注意以下事項︰
• 切勿堵塞熱水器後的出水管或限制水流。
• 必須定期清潔熱水器的水管、花灑頭和噴水調節器，清除堆積的污物和水垢，以免影
響熱水器功能。
• 必須使用生產商指定的配件。
• 如需安裝花灑，必須使用生產商指定的花灑頭。請勿使用任何會減少水流量的配件。

4.Dimensions
P.9
3.Technical Specications
P.8
231
231
170
363
466
56
100
97
The following regulations must be observed:
• VDE 0100
• EN 806
• Installation must comply with all statutory regulations, as well as those of the local electricity and
water supply companies.
• The rating plate and technical specification.
• Only intact and appropriate tools must be used.
Installation site
• Appliance must only be installed in frost-free rooms. Never expose appliance to frost.
• The appliance must be wall mounted and has to be installed with water connectors downward.
• The appliance complies with protect-ion type IP25 and may therefore be installed in protection zone 1
according to VDE 0100 part 701.
• In order to avoid thermal losses, the distance between the instantaneous water heater and the
tapping point should be as small as possible.
• The appliance must be accessible for maintenance work.
• Copper or steel connecting pipes may be used. Plastic pipes may only be used if they conform to
DIN 16893, Series2. The hot water pipes must be thermally insulated.
• The specific resistance of the water must be at least1,300Ω cm at 15 °C. The specific resistance can
be asked for with your water distribution company.
5.Installation
Dimensions in mm
DEX 12 ELECTRONIC MPS®Model
A#Energy efficiency class
8.8 12 Power setting
8.0 kW (36.6 A) 10.5 kW (47.7 A) Chosen capacity (Current) @220 V
8.8 kW (38 A) 11.5 kW (50 A) @ 230 V
9.6 kW (40 A) 12.5 kW (52.2 A) @ 240 V
1/N/PE 220 V .. 230 V .. 240 V Electrical connection
10.0 mm2Minimum required cable
size required cable size
4.5
3.3
5.9 1)
4.3
Hot water (l/min)
max. at ∆t = 28 K
max. at ∆t = 38 K
0.4 l Rated pressure
Pressure type 1, 0 MPa (10 bar)
Pressure resistant / Pressureless
Maximum static pressure
Connecting type
Bare wire heating system IES
®Heating system
≥ 1,300 Ωcm Required spec. water
resistance @ 15°C
≤ 77 mS/m Spec. electrical conductivity
Below 25°C Inlet temperature
2.5 – 5.0 l/min 2) Flow rate to switch on – max. flow rate
0.2 bar / at 2.5 l/min 1.3 bar/ at 9.0 l/
min 3) Pressure loss
20 °C – 55 °C Temperature choice
G ½” Water connection
3.70 kg Weight (when filled with water)
IVDE class of protection
Type of protection / safety
#) The declaration complies with the preliminary requirements of the EU regulation No 812/2013
1) Mixed water.
2) Flow rate limited to achieve optimum temperature rise.
3) Without flow regulator.
4) Specifications are subject to change without prior notice.
5) If there is any inconsistency or ambiguity between the Chinese version and the English version,
the English version shall prevail.
6) Refer to www.germanpool.com for the most up-to-date version of the User Manual.
Under normal working conditions, incoming pressure should not exceed 0.6 MPa. Otherwise, a separate pressure
control device is necessary. When incoming water pressure exceeds 0.6 MPa, German Pool will not provide any
repair service until a pressure control device is installed.

5.Installation 5.Installation
P.10 P.11
Mounting accessories
For installations under difficult conditions, these
mounting accessories are available:
Mounting kit RDX
(Art. no. 34100)
The instant water heater can be installed by means
of this mounting kit in the below situations. The
power supply cable is coming out of the wall at any
place from behind the unit, but the wall has unusual
surface conditions, making it difficult for installing
the water heater. The power supply cable is coming
from elsewhere and has to be connected to the back
of the unit.
Extension kit VDX
(Art. no. 34120) – RDX is necessary!
The instant water heater can be installed by means
of this extension kit if the water pipes are coming
displaced or exchanged out of the wall or if they are
coming edgewise on the wall to the unit. The power
supply could come out of the wall at any place under
the unit or the wiring could be installed surface-
mounted.
Extension kit UDX
(Art. no. 34110) – RDX is necessary!
The instant water heater can be installed by means
of this extension kit if the water-connections are
expiring above the unit. The power supply could
come out of the wall at any place under the unit or
the wiring could be installed surface-mounted.
RDX
VDX
UDX
Installing the wall bracket
Thoroughly rinse the water supply pipes before installation to
remove soiling from the pipes.
1. Using a 12 mm hexagon socket screw key, screw the screw-
in nipples into the wall connections. The seals must be fully
screwed into the thread. After tightening, the double nipples
must protrude by at least 12 mm.
2. Hold the included mounting template on the wall and align
it so that the holes in the template fit over the connections.
Mark the drill holes according to the template and drill them
using a 6mm drill. Insert the included dowels.
3. Screw in the wall bracket.Offset tiling or uneven surfaces
can be compensated by up to 30 mm with the aid of the
spacers supplied. The spacers are fitted between the wall
and the wall bracket.
Note
If you install this instantaneous water heater in exchange
for a conventional instantaneous water heater, there is
generally no need to drill holes for the wall bracket, in this
case step 2 would not be necessary.

6.Direct Connection
P.13
5.Installation
P.12
(a)
Closed
Open
Installing connection pieces
To open the appliance hood, take off the faceplate
and unscrew the main hood screw.
When replacing an appliance, the electrical power
supply cable may be connected in the upper part.
Only in such case, follow the instructions “Electrical
connection from above”.
Place the appliance on the heater bracket so that
the threaded rod of the wall bracket fits in the
provided hole of the appliance. If necessary, slight
corrections are possible by carefully bending the
threaded rod of the wall bracket. However, it must be
possible to screw on the water connection pipes of
the appliance without applying force.
Screw the two ⅜” union nuts of the appliance’s
water connection pipes, each with the ⅜” seal, onto
the fittings.
Screw the plastic knurled nut onto the threaded rod
of the wall bracket.
Open the water supply line to the unit and slowly
open (position “open”) the shut-off valve (a) in the
cold water connection piece. Check all connections
for leaks.
Next, open and close the hot water tapping valve
several times until no more air emerges from
the line and all air has been eliminated from the
instantaneous water heater.
As shown in the illustration, screw the cold water
connection piece with the union nut and the ½” seal
onto the cold water connection.
Screw the hot water connection piece with the union
nut and the ½” seal onto the hot water connection.
1.
2.
3.
4.
5.
6.
1.
2.
Note
Fasten the screw nuts with caution, to avoid
damage to the valves or the piping system.
Installing the appliance
For direct connection, the two ½” screw-in nipples and
the ½” seals must be screwed into the ½” union nuts
of the hot-water and cold-water connectors. The two
½” caps of the side outlets of the hot-water and cold-
water connectors must be removed and screwed onto
the open end of the screw-in nipples. The hot-water
and cold-water connectors must then be screwed into
the 3
/8” union nut of the appliance and delivery pipe,
together with the 3
/8” seals.
For direct connection, it is advisable to mount the
appliance at a distance as illustrated alongside, using
the spacer sleeves supplied. It should therefore be
noted that the two fixing holes near the lower pipe
connections are also used.
The flared end of the pipes must be screwed into
the ½” side outlets of the hot-water and cold-water
connectors with ½” union nuts and ½” seals. The
holes required for the pipes must then be broken out of
the housing with the aid of a blunt implement.
In case of direct connection please note:
Put the strainer into the cold water connection!
Note
Fasten the screw nuts with caution, to avoid
damage to the valves or the piping system.

7. Electrical Connection 7. Electrical Connection
P.14 P.15
Only by a specialist!
• VDE 0100
Please observe:
• The installation must comply with current IEC and national local regulations or any particular
regulations, specified by the local electricity supply company
• The rating plate and technical specifications
• The unit must be earthed!
Structural prerequisites
• The appliance must be installed via a permanent connection. Heater must be earthed! A cable size
of 10mm2must be observed.
• The electric wiring should not be injured. After mounting, the wiring must not be direct accessible.
• An all-pole disconnecting device (e.g. via fuses) with a contact opening width of at least 3 mm per
pole should be provided at the installation end.
• To protect the appliance, a fuse element must be fitted with a tripping current commensurate with
the nominal current of the appliance.
Wiring diagram
1.Electronic circuitry
2.Heating element
3.Safety pressure cut-out
4.Terminal strip
5.Safety thermal cut-out
Electrical connection from below
Check that the power supply is switched off prior to
electrical connection!
1. Dismantle approximately 6 cm off the connecting
cable above the wall outlet. With the smaller
opening ahead, slide the water splash protection
sleeve over the connecting cable so that the sleeve
is flush with the wall. This prevents any leaking
water from coming into contact with the electrical
leads. It must not become damaged! The protection
sleeve must be used!
2. Open the control panel rightwards.
3. Strip the cables and plug them in the connecting
terminals according to the wiring diagram. The
appliance must be earthed.
4. Pull the protective sleeve over the connecting
cables until the sleeve fits perfectly in the recess
of the intermediate panel. Adjust the water splash
protection sleeve as illustrated. Reinsert the control
panel and lock it on the heating element.
5. Place the hood on the appliance and screw in the
fastening screw. After that you can reinsert the
faceplate.
Note
If necessary, the connecting terminal can be
displaced to the upper part of the appliance. If
you want to do so, please follow the instructions
in the next chapter.
180mm
60mm
8mm

8. Initial Operation
P.17
7. Electrical Connection
P.16
Electrical connection from above
Check that the power supply is switched off prior to
electrical connection!
1. Open the prepared breaking point (S) in the upper
part of the appliance by pressing with a blunt
implement (e.g. screwdriver).
2. Slit the grommet to match the cable size. The
opening in the grommet should be slightly smaller
than the cross-section of the cable in order to
ensure optimum protection against water. Fit the
grommet into the opening. The protection grommet
must be used!
3. Dismantle the cable roughly 6 cm above the point
where it emerges from the wall. Hold the prepared
appliance so that you can route the cable into the
grommet with the other hand.
4. Place the appliance on the heater bracket so that
the threaded rod of the wall bracket fits in the
provided hole of the appliance.
5. Open the control panel rightwards.
6. Unscrew the fastening screw of the connecting
terminal. Displace the connecting terminal to the
upper foot. Affix the connecting terminal again.
7. Strip the cables and plug them in the connecting
terminals according to the wiring diagram. The
appliance must be earthed.
8. Reinsert the control panel and lock it on the heating
element.
9. Place the hood on the appliance and screw in the
fastening screw. After that you can reinsert the
faceplate.
®
Multiple Power System MPS®:
The rated capacity (max. power
consumption) is 10.5kW/220V and can
be changed internally to 8.0 kW.
Before making the electrical connection, fill the mains and the
appliance with water by carefully opening and closing the hot
water tap in order to vent completely.
To ensure a maximum flow, remove any existing aerator from
the faucet. Flush the warm and cold water pipes each at least
for one minute.
After every draining (e.g. after work on the plumbing sys tem
or following repairs to the appli ance), the heater must be
re-vented in this way before starting it up again.
If the water heater cannot be put into operation, the
temperature cut out or the pressurecut out may have tripped
during transport. If necessary, reset the cut out.
Selection of power rating
Only by authorised specialist, otherwise lapse of guarantee!
Upon first connection of the appliance to the supply voltage,
select the maximum power rating. Only after having set the
power rating, the heater provides its standard operation
mode.
The maximum allowable power rating at installation site
depends on the local situation. It is imperative to observe
all data shown in the table “Technical specifications”, in
particular the required cable size and fuse protection for the
electrical connection. Moreover, the electrical installation
must comply with the statutory regulations of the respective
country and those of the local electricity supply company
(Germany: DIN VDE 0100).
1. Switch on the power supply to the appliance. The digital
display on the appliance must light up.
2. When switching on the supply voltage for the first time, the
value “12” flashes in the display. If not, please follow the
below note “Reinstallation”.
3. Select the maximum allowable power rating depending
on the local situation via the up and down arrow keys
(“88” or “12” , see details at “Technical Specifications”).
4. Press key 1to confirm the setting.
The appliance starts operating.
5. Mark the set power rating on the rating plate.
6. After having set the maximum allowable power rating, the
heating element will be activated after approx. 30 sec of
continuous water flow.
7. Open the hot water tap. Check the function of the
appliance.
8. Explain the user how the instantaneous water heater
works and hand over the operating instructions.
9. Fill in the warranty card on P.51 and return to German Pool
according to the instructions.

9. Service menu
P.19
8. Initial Operation
P.18
Reinstallation
In case the appliance will be commissioned again
under different installation conditions than during
its initial operation, it may be necessary to adapt the
maximum power rating.
A temporary short-circuit of the two pins, e.g. with
a screwdriver acc. to EN 60900 (see figure), will
reset all heater parameters to works setting and
lock the heating. Value “12“ flashes in the display
until the maximum power rating has been selected.
This condition will maintain when activating and
deactivating the supply voltage.
Shower application
The water heater's temperature must be limited to
55 °C, if it is connected to a shower. The service
menu parameter Temperature Limit (“tL”) must be
set to a value less or equal 55 °C, in consultation
with the customer and the lock level must be
activated.
When the device is operated with preheated water, it
must be ensured that this temperature is limited to
55 °C as well.
Lock level
The operating mode of the appliance can be
restricted.
Activation of the Lock level
1. Disconnect the appliance from the power supply
(e.g. by switching off the fuses)
2. Insert the jumper on the power electronics (see
picture)
3. Put the appliance into operation again
Deactivation of the Lock level
1. Disconnect the appliance from the power supply
(e.g. by switching off the fuses)
2. Remove jumper
3. Put the appliance into operation again
The service menu offers an overview of system parameters and is used
for diagnostics.
Press key and key simultaneously for at least 2 seconds to call up the
service menu, the display confirms by “FL” and by a flashing point. Using the
arrow keys and , you can switch between the individual menu items.
Press key to see the value of the currently selected menu. The value
flashes in the display. (The values of some menus can be switched over
by using the arrow keys and .) You will get back to the drop-down-
menu when pressing key again. With key you will get back to the
standard display (nominal value). After two minutes without any key
stroke the system automatically switches back to the standard display.
Individual menu items as follows:
“FL”: Flow
Indication of current flow rate given in l/min.
“Po”: Power
Indication of current power consumption (kW).
“t1”: Temp in
Indication of inlet temperature (°C).
“t2”: Temp out
Indication of outlet temperature (°C).
“CA”: Control value
Indication of calibration value of the control system. Regular range: 40 – 60.
“PL”: Power limit
Informs about the current maximum power rating (kW) of the appliance.
“Er”: Diagnostics
Indication of the last ten diagnostic messages.
The error code is indicated by the first displayed value after pressing key 1
(refer to “Abstract for Trouble-Shooting & Diagnostics” in the hood). By using
the arrow keys
and the last 10 error codes are displayed chronologically.
Thereby the display indicates in turns the error numbers from “0” to “9” and
the corresponding error. The last error will be recorded at position “0” and the
former ones each shifted 1 position backwards.
“LL”: Lock level
The operating mode of the appliance can be restricted.
Setting Options:
“0” no restriction (factory setting)
“1” factory reset via key (countdown) not possible, parameters can be seen,
but not be modified in setup menu
“2” same as “1”, additionally the setup menu cannot be opened
“3” same as “2” additionally nominal value memory 1 and 2 not changeable
“4” same as “3”, additionally nominal value not changeable
Note: When the setting 1, 2, 3 or 4 was chosen, the system parameters can
no longer be modified in the service menu.
In order to modify these system parameters, it is necessary to remove the
jumper on the power electronics, as specified in the chapter “Deactivation of
the lock level”.
“nr”: Software version
Information about installed software version.
2
8
4
7
5
3
6
9
+
1
Open service menu
Display flashes
Press
≥ 2 sec
Menu item order of “Service menu“:
Flow
Power
Temp in
Temp out
Control value
Power limit
Diagnostics
Lock level
Software version
Radio channel
Received strength
Backlight
Temperature limit
Signal

10. Maintenance work
P.21
9. Service menu
P.20
“Ch”: Radio channel
(with wireless module only)
Information about the current radio channel of the water heater
and its remote control.
“rS”: Received strength
(with wireless module only)
Information about the current signal quality of the remote
control as percentage. Depending on the distance between
remote control and water heater the value varies between 10 %
and 100 %.
“bL”: Backlight (optional)
The display illumination can be activated and deactivated.
Setting options:
“0” Backlight always on
“1” Backlight switches on automatically, if button is pressed, or
water is heated (preset)
“2” Backlight always off
“tL”: Temperature limit
The maximum setable temperature can be reduced to any
value within the temperature range.
The Lock level must be activated via placing the jumper to
enable the limitation. Refer to the installation manual to this.
“IIC”: Signal
Information about the quality of the radio contact when a
diagnostic display is connected.
Menu item order of “Service menu“:
Flow
Power
Temp in
Temp out
Control value
Power limit
Diagnostics
Lock level
Software version
Radio channel
Received strength
Backlight
Temperature limit
Signal
(a)
(c)(b)
closed
open
Strainer
Maintenance work must only be conducted by an
authorised professional.
Cleaning and replacing the filter strainer
The cold water connection of this instantaneous
water heater is equipped with an integrated shut-
off valve and a strainer. Soiling of the strainer may
reduce the warm water output. Clean or replace the
strainer as follows:
1. De-energize the instantaneous water heater
(e.g. via deactivating the fuses) and prevent
inadvertent reactivation of them.
2. To open the hood, take off the small face plate,
loose the screw behind this cover and detach the
hood.
3. Close the shut-off valve (a) in the cold water
connection piece (position “closed”).
4. Unscrew the screw plug (b) from the cold water
connection piece and take out the strainer (c).
5. The strainer can now be cleaned or replaced.
6. After fitting of the clean strainer tighten the screw
plug.
7. Slowly reopen the shut-off valve in the cold water
connection piece (position “open”).
8. Vent the unit by carefully opening and closing the
affiliated warm water tap valve several times until
air no longer emerges from the pipe.
9. Fit the hood of the unit. Then switch on the
voltage again (e.g. via activating the fuses).

12. How to use
P.23
10. Maintenance work
P.22
Cleaning and replacing the filter strainer if direct
connected
The cold water connection of this instantaneous
water heater is equipped with a strainer. Soiling of the
strainer may reduce the warm water output. Clean or
replace the strainer as follows:
1. De-energize the instantaneous water heater
(e.g. via deactivating the fuses) and prevent
inadvertent reactivation of them.
2. Close the shut-off valve in the mains water supply
of the instantaneous water heater.
3. To open the hood, take off the small faceplate,
loose the screw behind this cover and detach the
hood.
4. Unscrew mains water inlet from connection piece
and take out the strainer.
5. The strainer can now be cleaned or replaced.
6. After refitting the clean strainer reconnect the
mains water inlet to the connection piece.
7. Slowly reopen the shut-off valve in the mains
water supply.
8. Vent the unit by carefully opening and closing the
affiliated warm water tap valve several times until
air no longer emerges from the pipe.
9. Fit the hood of the unit. Then switch on the
voltage again (e.g. via activating the fuses).
GERMAN POOL is conscious of the importance of environmental
protection. We extend our belief to our packaging materials. You
can help the environment by carefully segregating waste.
The packaging is essential for protecting the components during
transportation. The packaging is made from environmentally-
friendly, re-usable corrugated cardboard. The plastic bags are
made of recyclable polythene(PE).
The plastic components of the appliance are marked with a
material code so that they can be recycled at the end of their
useful life. These valuable materials are 100 % recyclable,
provided they are correctly segregated.
Electrical devices should be disposed of separately from
household waste at the end of their service life. Please take this
device to a collection point that accepts electronic scrap.
11.Environment and recycling
As soon as you open the hot water tap, the
instantaneous water heater switches on automatically.
When the tap is closed, the appliance automatically
switches off.
Temperature setting
You can set the required temperature gradually to a
lower or higher value with the arrow keys and . The
temperature changes by 1°C if key is pressed shortly
one time. Pressing a key for a longer time changes the
temperature continuously. You can select the outlet
temperature from 20°C to 55°C.
Programme buttons
The two programme buttons allow to quickly select
the preset temperature. When pressing a programme
key, the preset temperature is selected and displayed.
The factory setting for programme is 35°C and for
programme it is 48°C. You can assign your own
settings for the programme keys:
Prolonged pressing of the programme key stores the
previously selected temperature. The display changes
from ”P1” or “P2“ to the newly stored temperature value.
This newly set temperature is now available to you each
time you press the corresponding program key.
Set temperature
1
–1°C +1 °C
Select preset temperature
A1 A2
B1 B2
Store temperature
2
Press
≥ 3 sec
Display of new value (e.g. 43 °C)
Set required
temperature
(e.g. 43°C)
43
1
Note
If temperature is set below 20°C with arrow
key the display shows “--“ and the appliance
switches off the heating function.
If the water heater supplies a shower, the maximum
temperature was reduced during initial operation.
This limitation cannot be exceeded.

12. How to use 12. How to use
P.24 P.25
Temperature limitation
The instantaneous water heater DEX12 is equipped with
an optional temperature limiting function. This scalding
protection is deactivated in the factory setting.
Switch on: Select the limit temperature, then press
and simultaneously for at least 3 sec. The display
briefly confirms the activation by “HI“.
Switch off: press program key and simultaneously
for at least 3sec. The display briefly confirms the
deactivation by “--“.
Reset to factory setting
All factory settings can be recalled:
Press and simultaneously. The display now counts
backwards from “10“ to “00“ in second intervals. The
appliance is reset at value “00“ - if you stop pressing the
keys earlier, you will cancel the process.
+
Reset
1
Press + hold!
Reset completed
3
2
+
Press
≥ 3 sec
12
Scalding protection off
Confirmation
of deactivation
Scalding protection on
+
Press
≥ 3 sec
1 2
Note
By activation of the temperature limit also the
programme keys are limited. Therefore, the fixed
values of the programme keys may be set again
after deactivation of the temperature limitation.
How to save energy
Set the exact temperature you need on the appliance
and open the hot water tap. Once you feel that the
water is too hot, do not add any cold water and,
instead, enter a lower temperature on the appliance.
If you were to add cold water, the water already
heated would cool down again and valuable energy
would be wasted. Moreover, the cold water added
in the tap is not covered by the control range of the
electronic circuitry, with the result that temperature
constancy is no longer guaranteed.
Power limit
Unit provides no output
Power limit
If the full output of the instantaneous water heater DEX12 does
not suffice to heat the tapped quantity of water, this will be
indicated by the LCD decimal point (e.g. in winter time, when
opening several taps at once). When you reduce the hot water
flow rate, the LCD point stops indicating because the output of
the appliance is again sufficient to reach the set temperature.
Top-up heating
When operating with preheated water, you must ensure that
the inlet temperature does not exceed 25°C.
If the inlet temperature exceeds the setpoint, the appliance
is not providing any output, the flashing decimal point of the
digital display indicates that the heating power is switched off.
Venting after maintenance work
The instantaneous water heater DEX12 features an automatic
air bubble protection to prevent it from inadvertently running
dry. Nevertheless, the appliance must be vented before using
it for the first time. Each time the appliance is emptied (e.g.
after work on the plumbing system, if there is a risk of frost or
following repair work), the appliance must be re-vented before
it is used again.
1. Disconnect the instantaneous water heater from the
mains by disactivating the fuses.
2. Unscrew the jet regulator on the outlet fitting and open
the cold water tap valve to rinse out the water pipe and
avoid contaminating the appliance or the jet regulator.
3. Open and close the hot water tap until no more air
emerges from the pipe and all air.
4. Only then should you reconnect the power supply to
the instantaneous water heater and screw the jet
regulator back in.
5. The appliance activates the heater after approx. 10
seconds of continuous water flow.
Cleaning and maintenance
Plastic surfaces and fittings should only be wiped with a damp cloth.
Do not use abrasive or chlorine-based cleaning agents or solvents.
For a good water supply, the outlet fittings (special tap aerators and
shower heads) should be unscrewed and cleaned at regular intervals.
Every three years, the electrical and plumbing components should
be inspected by an authorised professional in order to ensure proper
functioning and operational safety at all times.
Power limit
Unit provides no output

P.27
13. Troubleshooting
P.26
The instantaneous water heater was manufactured conscientiously
and checked several times before delivery. Should malfunctions
nevertheless occur, it is usually only due to a bagatelle. First
attempt to switch the house fuses off and on again in order
to reset the electronics. Next, try to remedy the problem with
reference to the following table. In doing so, you will avoid
unnecessary expense of customer service assistance.
Problem Cause Solution
Water stays cold,
digital display does
not light up
Master fuse
tripped
Renew or activate
fuse
Safety pressure
cut-out tripped
Contact customer
service
Water stays cold,
digital display lights up
Safety thermal cut-
out tripped
Contact customer
service
Display ashes error
message “Er“
Control system has
switched off
Switch fuse off and
on. If “Er“ still ashes
contact customer
service
Flow rate of hot water
too weak
Outlet tting dirty
or calcied
Clean shower head,
jet regulator or sieves
Fine lter dirty or
calcied
Let clean ne lter by
customer service
Selected temperature
is notreached ,
decimal point lights up
Water ow rate too
high
Reduce water ow
rate at the tap
Selected temp. is not
reacheddecimal point
does not light
Cold water has
been added via the
tap
Tap hot water only;
set temperature for
use
Decimal point ashes Inlet temperature
exceeding nominal
Reduce inlet
temperature
No response upon
keypress
Hood is not tted
properly
Ret the hood
properly
Repairs must only be carried out
by authorised professionals.
If a fault in your appliance cannot
be rectified with the aid of this
table, please contact the Central
Customer Service Department at
GERMAN POOL. Please have the
details of the typeplate at hand.
German Pool (Hong Kong) Limited
Room 113, Newport Centre
Phase II, 116 Ma Tau Kok Road,
Tokwawan, Kowloon, Hong Kong
Tel: [phone]
Fax: [phone]
Email: inf[email protected]
Hong Kong Sole Agent
Quick reference guide
Scalding protection on
+
Press
≥ 3 sec
1 2
Set temperature
1
–1°C +1 °C
Select preset temperature
A1 A2
B1 B2
Power limit
+
Reset
1
Press + hold!
Reset completed
3
2
Unit provides no output
Arrow keys up and down
Programme button 1 Programme button 2
Store temperature
2
Press
≥ 3 sec
Display of new value (e.g. 43°C)
Set required
temperature
(e.g. 43 °C)
43
1
+
Press
≥ 3 sec
12
Scalding protection off
Confirmation
of deactivation

1.概觀圖
P.29
目錄
P.28
29
07
30
31
31
31
32
33
34
34
35
36
36
36
37
38
39
39
40
40
40
41
43
43
44
45
46
47
48
1. 概觀圖
2. 安全守則
3. 規格
4. 尺寸
5. 安裝
安裝地點
裝掛配件
安裝牆上掛碼
安裝接駁配件
安裝熱水器
6. 直接接駁
7. 電線接駁
線路圖
結構要求
底部標準電線接駁
上面部份電線接駁
8. 初步操作
功率選擇
鎖定等級
重新安裝說明
淋浴功能
9. 服務功能表
10.保養
清洗及更換沙隔
直接接駁時清潔並更換濾網
11.環保及再造
12.使用指示
13.檢查要點
快速參考指引
注意：在使用本產品之前，請仔細閱讀隨附的安全說明，並在使用過程中遵循這些說明。
訂購個別零件時，請註明熱水器型號及機身編號。
連接喉
PCB 面蓋
底部
PCB
控制面板支架
接線端子
入水管
冷水接駁
濺水保護套
電線封蓋旋入杬牙
過濾網
限流器 5 升/分
框架
DEX 外殼
止回閥
流量感應器
恒溫感應組件
感溫斷電安全裝置
DEX控制面板
出水管
熱水接駁
掛接背板
加熱元件
（附壓力調節及STDB）
感溫斷電安全裝置

4.尺寸
P.31
3.規格
P.30
DEX 12電子控制 MPS®型號
A#能源標簽
8.812 功率設定
8.0 kW (36.6 A) 10.5 kW (47.7 A) 額定功率（電流） @220 V
8.8 kW (38 A) 11.5 kW (50 A) @ 230 V
9.6 kW (40 A) 12.5 kW (52.2 A) @ 240 V
1/N/PE 220 V .. 230 V .. 240 V 接駁電源
10.0 mm2最低電線尺寸要求
4.5
3.3
5.9 1)
4.3
最高熱水量 (升/分)
max. at ∆t = 28 K
max. at ∆t = 38 K
0.4 l 額定容量
Pressure type 1 MPa (10 bar)
開放式/封密式
額定壓力
安裝方式
Bare wire heating system IES
®加熱系統
≥ 1,300Ωcm 要求來水電阻@15℃
≤ 77 mS/m 導電性能
低於 25°C 入水水溫
2.5 – 5.0l/min 2) 要求最低流量至最高流量
0.2 bar / at 2.5 l/min 1.3 bar/ at 9.0 l/min 3) 壓力損失
20 °C – 55 °C 溫度選擇
G ½” 水管接駁
3.70 kg 重量（注水後）
IVDE安全保護級別
安全認證
#)符合歐盟法規No.812/2013的初步要求。
1) 混合水。
2) 限流目的為達到最佳溫度上升效果。
3) 不設限流器。
4) 產品規格及設計如有變更，恕不另行通知。
5) 中英文版本如有出入，一概以英文版為准。
6) 本產品使用說明書以 www.germanpool.com 網上版為最新版本。
正常情況下，如供水系統之來水水壓超過0.6 MPa，用戶必須額外加裝減壓器將水壓調低。
如來水壓力超過0.6 MPa而用戶未有安裝減壓器，本公司有權拒絕為熱水器進行任何維修。
安裝時必需遵守下列指示：
VDE 0100
EN 806
當地有關之電線安裝條例、安全標準、電力供應商或水務署之安全條例。
銘牌上的產品規格。
必須使用完好和適當的工具。
安裝地點
必須安裝於全年都不結霜之房間內。
此熱水器只可作掛牆式安裝，出入水接駁喉位向下。
熱水器的防護等級為IP25，根據VDE 0100 part 701，熱水器必須安裝於保護區1內。
為避免失溫，應將熱水器安裝於最接近出水位置。
熱水器必須處於易於接近的地方。
如選用膠喉，該膠喉必須符合DIN16893 Series 2規格。熱水喉必須有保溫保護。
來水於15℃時，水電阻最少應為1,300Ωcm。有關詳情可向水務署查詢。
231
231
170
363
466
56
100
97
5.安裝
尺寸單位：（毫米）

5.安裝 5.安裝
P.32 P.33
裝掛配件
若所選熱水器安裝地點難以安裝，可選配下列裝
掛配件：
裝掛套裝 RDX
(序號：34100)
在下列情況下，此裝掛套裝可以用來安裝熱水
器。當安裝牆壁表面不平均，而電源線出線位又
正在這表面之上，令熱水器難以安裝。電源線需
從其他表面拉到已選安裝位置才能被連接到熱水
器的背面。
擴展套件 VDX
(序號：34120) - 必須選用RDX
下列情況下，此擴展套件可以用來安裝熱水器。
當水管冷熱水位倒置、水管出牆位置需要改動來
迎合熱水器的安裝位置時。電源線從熱水器的下
方出牆或電線可作表面安裝。
擴展套件 UDX
(序號：34110) - 必須選用RDX
下列情況下，此擴展套件可以用來安裝熱水器。
當水管在熱水器之上方終結時。電源線從熱水器
的下方出牆或電線可作表面安裝。
RDX
VDX
UDX
安裝牆上掛碼
安裝前先徹底清洗供水喉管。
1.用12毫米六角螺絲鎖匙將杬牙旋入牆上接駁位置，旋妥
杬牙後，杬牙應外露12毫米。
2.將附上的範本放在牆上適當位置以配合冷熱水位置。根
據範本位置記下鑽孔位置，用6毫米鑽咀鑽孔，放入合縫
釘旋入掛碼。
3.可用附上的水準板碼調校達30毫米之牆面不平或傾斜情
況。水準板碼應裝在牆壁與掛碼之間。
注意
如果此即熱式熱水器用以更換傳統形式即熱式熱水器，
一般無需於牆上掛碼上鑽孔。在此情況下，無需理會步
驟2。

6.直接接駁
P.35
5.安裝
P.34
安裝接駁配件
1. 如圖所示將緊固螺母1/2”密封圈與冷水進水配件
連接。
2. 如圖所示將緊固螺母1/2”密封圈與熱水出水配件
連接。
安裝熱水器
1. 旋鬆螺絲，打開面蓋。
 當更換熱水器時，電源線只可從熱水器上半部接
駁，只在此情況下，參考「上面部份電線接駁」。
2. 將熱水器掛在掛接背板上，如有需要可略為彎曲螺
紋桿。注意，彎曲螺紋桿後旋上進出水配件時應無
需使用蠻力。
3. 將兩個3/8”緊固螺母及3/8”密封圈旋入進出入
連接配件內。
4. 將膠螺母旋入牆上掛碼螺紋棒上。
5 . 打 開 冷 水 供 水 喉，慢 慢 旋 開 閘 掣( a) (位置：開），查看
有 否 滲 漏。
6. 接著連續打開及關閉熱水龍頭閥數次將熱水器內的
空氣排出。
關
開
注意
旋緊螺母時應小心避免損壞閥或喉管。
(a)
直接接駁時把兩個1/2”杬牙及1/2”密封圈旋入冷熱
水接駁件的1/2”緊固螺母內。取出冷熱水接駁件的
1/2”密封帽，然後旋入杬牙的開放一端。將冷水及
熱水的接連配件旋入熱水器機身及送水管的3/8”緊
固螺母及3/8”密封圈。
直接接駁安裝時，應利用附上的水準板，儘量垂直緊
貼牆身安裝，可同時利用接駁喉管下半部的固定孔固
定位置。
喉管的喇叭接頭必需連1/2”緊固螺母及1/2”密封圈
旋入冷熱喉的1/2”接連配件。並在機身外殼底部開
孔讓冷熱水喉穿過。
直接接駁時請注意：將沙隔置於冷水入水接駁位!
注意
旋緊螺母時應小心避免損壞閥或喉管。

7.電線接駁 7.電線接駁
P.36 P.37
必須由合格技師負責!
請注意：
- VDE 0100
- 必須按現行之IEC標準、當地的電線安全標準及法規、及根據任何當地電力供應商之標準或法規
安裝。
- 參照銘牌上註明的技術規格。
- 熱水器必須接駁地線！
結構要求
- 熱水器必須穩固永久接駁安裝。熱水器必須接駁地線！
- 電線不應損壞，安裝後電線不應可以直接觸摸得到。
- 電源開關應為全極式開關（經保險絲），兩極之間應保持最少3毫米距離。
- 應安裝保險絲。
1. 電子線路
2. 發熱元件
3. 安全限壓斷電裝置
4. 端子板
5. 感溫斷電安全裝置
線路圖 底部標準電線接駁
接駁電線前，請必先確定電源已關上。
1. 從牆上插座位元拆除約6厘米電線，套入濺水保護
套，使保護套與牆身齊平，確保如有漏水也不會
沾濕電線。
2. 打開控制板。
3. 按本頁頂部的線路圖剝去電線外皮並將其接到接線
端子上。此熱水器必須連接地線。
4. 將電線的保護套拉上並套入中間層板的凹位，再蓋
上中間層板的面板，再用螺絲將電路板蓋面鎖緊。
5. 用螺絲將熱水器面蓋鎖緊。
注意
如有需要，可將接駁線插改放置於熱水器上半
部，如需這樣做，請參照下一部份指示。
180mm
60mm
8mm

8.初步操作
P.39
7.電線接駁
P.38
上面部份電線接駁
接駁電線前，請必先確定電源已關上。
1.用工具(例如螺絲批)按壓預先預備的開孔位置(S)。
2.介開電線位密封膠蓋，介開的面積應略為少於電線
的面積以確保最佳的防水性能。將密封膠蓋套入入
線孔。
3.從牆身電線出線位預留約6厘米電線，將電線經密
封膠蓋穿入熱水器內。
4.將熱水器掛在背碼上，背碼有螺紋的支柱應套入熱
水器的孔內。
5.打開控制面板。
6.旋鬆電線接駁線插的螺絲，將線插移往上部位置，
再接駁線插。
7.按照線路圖接駁電線，此熱水器必須接駁地線。
8.裝回控制面板，並將其固定在發熱元件上。
9.裝回及固定外殼，然後裝回面板。
接駁電源前，先將水注入熱水器內，然後開關熱水
器龍頭數次，以將熱水器內的空氣排出。
為確保最大流量，需除去水龍頭的起泡器。，對熱
水管及冷水管分別排水至少1分鐘。
每次維修或水喉工程後，必須將熱水器內的空氣排
出，然後再啟動熱水器。
如果熱水器未能啟動，可能因為壓力調節或感溫斷
電安全裝置於運輸期間錯誤啟動。如有需要，請先
重設有關裝置。
功率選擇
必須由註冊技師調校，否則保養作廢。
初次接駁電源後，選擇最大功率。只在設定功率
後，熱水器才進入標準操作模式。
最大可容許功率需視乎安裝地點情況而定。必須
注意技術規格表內所提供的資料，特別是電源線
的要求及電線接駁的保險絲保護，所有電線接駁
安裝必須遵照安裝地點的有關法例（德國：DIN
VDE0100）。
1. 開著熱水器後，顯示屏亮。
2. 初次啟動時，數值（12）會在顯示屏上閃動，否
則，請細心閱讀「重新安裝說明」。
3. 按及箭咀鍵選擇安裝當地所容許之最大功率
分別為：（88）或（12），詳情請參閱規格。
4. 按鍵確定設定，熱水器將開始操作。
5. 在銘牌上註明所設定的功率。
6. 設定最高容許功率後，發熱線會在水流開始30秒
後啟動。
7. 開啟熱水龍頭，熱水器開始操作。測試熱水器性能。
8. 將使用說明交給客戶，並向客戶解釋熱水器怎樣
操作。
9.初步操作妥當後，請填妥及寄回保用証。
®
多功率調校系統 MPS®:
額定容量（最大功耗）為10.5kW/220V,
可降至8.0kW。