German pool CEX21 ELECTRONIC MPS User manual

by
在使用之前請詳細閱讀「使用說明書」及「保用條例」，並妥為保存。
Please read these instructions and warranty information carefully
before use and keep them handy for future reference.
使用說明書 OPERATING INSTRUCTIONS
WH-CEX21-M-16(5)
Printed in Germany
歐盟A級能源效益認證
EU ENERGY EFFICIENCY CLASS A
MADE IN GERMANY
Instantaneous Water Heater
即熱式電熱水器
CEX21/CEX21-U
MADE IN GERMANY
即時網上登記保用
Online Warranty Registration

Contents
1. Overview 03
2. Safety instructions 04
3. Description of appliance 04
4. Technical specifications 05
5. Dimensions 06
6. Typical installation 06
7. Installation 07
Mounting the appliance 08
Installing the appliance 08
8. Electrical connection 09
Wiring diagram 09
Structural prerequisites 09
Electrical installation to a permanent connection 09
9. Initial operation 10
Selection of power rating 10
Remote control 11
Reinstallation 11
Lock level 11
10. How to use 12
Temperature setting 12
Programme buttons 12
Temperature limitation 13
Reset to factory setting 13
How to save energy 14
ECO mode 14
Power limit 14
Operation with solar systems 14
Venting after maintenance work 15
Cleaning and maintenance 15
11. Environment and recycling 15
12. Service menu 16
13. Trouble-shooting and service 18
Quick reference guide 19

P.3
1. Overview
When ordering spare parts, please always specify the appliance model and serial number.
Screws and dowels
Hood
Non-return
valve
Electronics
Inlet pipe
Flow sensor
Connecting
terminal
Grommet
Control
panel
Bottom part
Temperature
sensor set
Heating element
with SDB
Cold and hot water connection
Safety thermal
cut-out

P.4
3. Description of Appliance
2. Safety Instructions
• 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
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.
• Do not remove the front cover under any circumstances before switching off the mains
electrical supply to the unit.
• Never make technical modifications, 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
fittings and taps may be very hot when the appliance has been in use for some time.
• This appliance can be used by children aged 8 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 performed by children without supervision.
• 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
mains water supply instantly. Repairs must only be carried out by the customer service
department or an authorised professional.
Please read these instructions carefully before installing or using the
appliance! Keep the instructions handy with the appliance for future use!
Instruction manuals are intended for the specialist who is responsible for
the installation of the appliance. Operation manuals are for the end user.
The latest version of the instructions can be found online at www.germanpool.com.
The instantaneous water heater CEX21/CEX21-U is a
microprocessor-controlled, pressure-resistant hot water heater for a
decentralised hot water supply to one or more outlets.
Its electronic control regulates the heating power consumption
depending on the selected outlet temperature, the respective inlet
temperature and the ow rate, thus reaching the set temperature
exactly to the degree and keeping it constant in case of pressure
uctuations. The required outlet temperature can be entered on a
keypad and can be read off the digital display.
The maximum inlet temperature can be up to 70 °C so that
operation in connection with solar heating systems is possible.

P.5
4. Technical Specications
Model CEX21 ELECTRONIC MPS®/ CEX21-U ELECTRONIC MPS®
Energy efficiency class A *)
Rated capacity / rated current 18 / 21 kW (26 / 30 A)
Chosen capacity
(Chosen current) 18 kW (26 A) 21 kW (30 A)
Electrical connection 3 / PE 380..415V AC
Min. required cable size 4 mm24 mm2
Hot water (l/min)
max. at ∆t = 33 K 7.8 9.1 1)
Rated volume 0.3 l
Type Pressure type 1.2 MPa (12 bar)
Heating system Bare wire heating system IES
®
Required spec. water
resistance @ 15 °C
Spec. electrical conductivity
≥ 1000 Ωcm
≤ 100mS/m
Inlet temperature ≤ 70 °C
Flow rate to switch on –
max. flow rate 2.0 – 8.0 l/min 2)
Pressure loss 0.2 bar at 2.5 l/min
1.3 bar at 9.0 l/min 3)
Temperature choice 20 – 60 °C
Water connection G ½ inch
Weight (when filled w. water) 2.7 kg
VDE class of protection I
Type of protection / safety IP254)
*) The declaration complies with the EU regulation No 812/2013
1) Mixed water
2) Flow rate limited to achieve optimum temperature rise
3) Without flow regulator
4) IP24 for CEX 21-U
- Specifications are subject to change without prior notice.
- If there is any inconsistency or ambiguity between the Chinese versionand the English version, the English
version shall prevail.
- Refer to www.germanpool.com for the most up-to-date version of the User Manual.

P.6
6. Typical Installation
5. Dimensions
312
100
177
108
37
Dimensions in mm
Upper edge of the unit approx
. 600
294
177 ≥70
75
100
G
½
Dimensions in mm
Depth 108
Upper edge of the sink approx
. 850
Angle valve approx. 550
Shorten cable
if necessary
Example of an open-outlet installation with special tap: Example of a closed-outlet installation:

P.7
6. Typical Installation
7. Installation
The following regulations must be observed:
• 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 specifications
• 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 is designed for undersink installation and has to be installed with water connectors upward.
• The appliance complies with protection type IP24.
• In order to avoid thermal losses, the distance between the instantaneous water heater and the tapping
point should be as small as possible.
• For maintenance work, a shut-off valve should be installed in the supply line. 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, Series 2. The hot water pipes must be thermally insulated.
• The specific resistance of the water must be at least 1000 Ωcm at 15 °C. The specific resistance can
be asked for with your water supply company.
MADEINGERMANY
177
294
100
Upper edge of the wash basic approx. 850 Lower edge of the unit approx. 1200
Upper edge of the shower cabin approx. 1950
Dimensions in mm (Installation example)
0
MADEIN GERMANY
CEX21 at direct connection:
Supply for multiple outlets
CEX21 wall mounted
mixer: Supply for one
sink
MADEIN GERMANY
Direct connection:
Supply for outlet

P.8
7. Installation
Mounting the appliance
1. Thoroughly rinse the water supply pipes before
installation to remove soiling from the pipes.
2. Hold the appliance on the wall, and mark the
drill lines at top and bottom, right and left,
corresponding to the small notches at the edge
of the appliance hood (see bottom figure). The
alignment template (located on the back inside
cover of this manual) may be used for this purpose
alternatively.
3. Connect the top and bottom marks vertically with
each other (A-A).
4. Connect the right and left marks horizontally with
each other (B-B).
5. The intersections of these lines are the drill points.
6. Drill the holes using a 6 mm drill. Insert the
included dowels and screws. The screws have to
protrude 5 mm.
7. Hang up the appliance into the rear hanging
openings until it clicks into place.
Installing the appliance
1. Attach the water connection pipes to the appliance’s
water connection. Use the ½ inch seals.
2. Open and close the hot water tap until no more
air emerges from the pipe and all air has been
eliminated from the water heater.
263
179
140
41
84
26
140 77
96
28
80
70
80
70
140
7
57
153
84
41
26
28
96
140

P.9
8. Electrical Connection
2
1
4
5
3
Only by a specialist! Please observe:
• VDE 0100
• The installation must comply with current IEC or national
local regulations and 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 maximum
cable size must be observed: 10 mm2.
• 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.
Electrical connection
Check that the power supply is switched off prior to
electrical connection!
Electrical connection with preinstalled power cable
The appliance is to be connected with the pre-installed
power cable to a terminal box. If necessary, use one of
the three predetermined breaking points for the cable
entry (at the right, left or bottom).
Alternative:
Electrical installation to a permanent connection
If, in case of particular local circumstances,
connecting to a permanent connection is the only
possibility, continue as follows.
1. Disassemble the pre-installed power cable.
2. Dismantle off the power cable so that you can insert
the cable with the cladding through the water splash
protection sleeve up to the cord grip into the appliance.
3. Lead the cable through the water splash protection
sleeve into the appliance so that one can securely
fix the cladding of the cable with the cord grip. If
necessary, use one of the three predetermined
breaking points for the cable entry (at the right, left
or bottom). The protective sleeve prevents water from
entering the appliance alongside the connection line.
The protection sleeve has to be used!
4. Mount the cord grip. The cord grip must be used!
5. Strip the cables and plug them in the connecting
terminals according to the wiring diagram. The
appliance must be earthed.
6. After successful electrical connection, fit the hood of
the unit. Make sure not to jam any cables between the
appliance hood and the base part of the appliance.
1. Electronic circuitry
2. Heating element
3. Safety pressure cut-out
4. Terminal strip
5. Safety thermal cut-out
Wiring diagram

P.10
9. Initial Operation
®
Multiple Power System:
The rated capacity (max. power
consumption) is 18 kW / 400 V
and can be changed internally to
21 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. After every draining (e.g. after work
on the plumbing system or following repairs to the
appliance), 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 pressure cut-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 “18“ flashes in the display.
If not, please carefully read the below note
“Reinstallation”.
3. Select the maximum allowable power rating
depending on the local situation via the up and
down arrow keys: 18 or 21 kW.
4. Press key to confirm the setting. The appliance
starts operating.
5. Mark the set power rating on the rating plate.
6. Open the hot water tap. Check the function of the
appliance.
7. After having set the maximum allowable power
rating, the heating element will be activated after
approx. 10 seconds of water flow.
8. Explain the user how the instantaneous water
heater works and hand over the operating
instructions.
9. Fill in the guarantee registration card and send it to
the Customer Service or use the online registration.

P.11
9. Initial Operation
Remote control
The water heater’s temperature must be limited to 55
°C, if it is connected to a shower and controlled with
a remote control system. 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.
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 “18“ flashes in the display until the maximum
power rating has been selected. This condition will
maintain when activating and deactivating the supply
voltage.
Lock Level
The operating mode of the appliance can be
restricted. The service menu can be used to configure
the appliance.
Activation of the lock level
1. Set required lock level in the service menu (refer
to chapter “Service menu” in this installing
instructions).
2. Disconnect the appliance from the power supply
(e.g. by switching off the fuses).
3. Move the jumper on the power electronics from pin
2 to pin 1 (see figure).
4. 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. Move jumper from pin 1 to pin 2.
3. Put the appliance into operation again.
MADE IN GERMANY

P.12
10. How to Use
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, in the convenience
zone between 35°C and 42°C by 0.5°C, if key is
pressed shortly one time. Pressing a key for a longer
time changes the temperature continuously.
Note: If temperature is set below 20°C with arrow
key the display shows “- -” and the appliance
switches off the heating function.
Note: If the water heater supplies a shower and is
connected to a remote control system, the maximum
temperature was reduced during initial operation.
This limitation cannot be exceeded.
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.
MADE IN GERMANY
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)
4 3
1
Convenience zone 35.0.. 42.0°C
1
–0.5 °C +0.5 °C

P.13
10. How to Use
Temperature limitation
This instantaneous water heater 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 3 sec. The display briefly
confirms the deactivation by “- -“.
Note: By activation of the temperature limit also the
programme keys are affected. Therefore, the fixed
values of the programme keys must be checked
after changing the temperature limitation.
Reset to factory setting
All factory settings can be recalled:
• Press and 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
3
Confirmation
of activation
Scalding protection on
+
Press
≥3 sec
1 2

P.14
10. How to Use
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.
ECO mode
The symbol shows that the appliance works in
an energy saving mode (i.e. the momentary energy
consumption is subject to the selected temperature
and to the flow rate in the energy saving mode.
Power limit
If the full output of the instantaneous water heater
does not suffice to heat the tapped quantity of water,
this will be indicated by on the LCD (e.g. in winter
time, when opening several taps at once). When you
reduce the hot water flow rate, stops lighting
because the output of the appliance is sufficient to
reach the set temperature again. You can now use the
full output to fill larger containers, for instance.
Operation with solar systems
When operating with solar systems, e.g. an automatic
mixing tap must ensure that the maximum inlet
temperature is not exceed. If the inlet temperature
exceeds the setpoint, the icon on the digital display
indicates that the heating power is switched off.
Power limit
ECO mode
Unit provides no output

P.15
10. How to Use
Venting after maintenance work
This instantaneous water heater 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 (e.g.
via deactivating 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 has been eliminated from the water heater.
4. Only then should you re-connect the power supply again (e.g.
via activating the fuses) 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.
Your product was manufactured from high-quality, reusable
materials and components. Please respect in case of discarding
that electrical devices should be disposed of separately from
household waste at the end of their service life. Therefore, please
take this device to a municipal collection point that accepts
electronic scrap. Disposing it correctly will support environmental
protection and will prevent any potential negative effects on
human beings and the environment that could arise from
inappropriate handling of these devices at the end of their service
life. Please contact your local authority for further details of your
nearest designated collection point or recycling site.
Business customers: If you wish to discard electronic equipment,
please contact your dealer or supplier for further information.
11. Environment and Recycling

P.16
12. Service Menu
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
Indication of 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”.
Flow
Power
Temp in
Temp out
Control value
Power limit
Diagnostics
Lock level
Software version
Radio channel
Received strength
Temperature limit
Signal
Enter service menu
2
8
4
7
5
3
6
9
+
1
Display flashes
Press
≥2 sec
Menu item order of “Service menu“:

P.17
12. Service Menu
Menu item order of “Service menu“: “nr”: Software version
Information about installed software version.
“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%.
“tL”: Temperature limit
The maximum setable temperature can be reduced to
any value within the temperature limit.
The Lock Level must be activated by placing the
jumper to enable the limitation.
“IIC”: Signal
Information about the quality of the radio contact
when a diagnostic display is connected.
Flow
Power
Temp in
Temp out
Control value
Power limit
Diagnostics
Lock level
Software version
Radio channel
Received strength
Temperature limit
Signal
Enter service menu
2
8
4
7
5
3
6
9
+
1
Display flashes
Press
≥2 sec

P.18
13. Trouble-shooting and Service
This 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.
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 service
organisation of your importer
or the Central Customer
Service Department. Please
have the details of the
typeplate at hand.
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 does light up
Safety thermal cut-
out tripped Contact customer service
Display flashes error mes-
sage “Er“
Control system has
switched off
Switch fuse off and on. If
“Er“ still flashes contact
customer service
Flow rate of hot water too
weak
Outlet fitting dirty or
calcified
Clean shower head, jet
regulator or sieves
Fine filter dirty or
calcified
Let clean fine filter by a
specialist
Selected temperature is
not reached, “MAX“ lights
Water flow rate too
high
Reduce water flow rate at
the tap
Selected temp. is not
reached, “MAX“ does not
light
Cold water has been
added via the tap
Tap hot water only; set
temperature for use
Symbol “sun“ lights up
Inlet temperature
exceeding nominal
temperature
Reduce inlet temperature
Appliance heats, the dis-
play does not light
Display plug not
properly connected
Let fix correct position of
display plug by customer
service
MADE IN GERMANY
If the connection cable is damaged, it must be replaced with
an original spare cable from the manufacturer by an authorised
technician in order to avoid any hazards.
If you cannot rectify the fault with the aid of the troubleshooting
table, please contact the customer service.

P.19
Quick reference guide
Arrow key down
Arrow key up
Programme button 1
Programme button 2
Power limit
+
Reset
1
Press + hold!
Reset completed
3
2
+
Press
≥3 sec
12
Scalding protection off
Confirmation
of deactivation
Unit provides no output
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)
4 3
1
Convenience zone 35.0.. 42.0°C
1
–0.5 °C +0.5 °C
3
Confirmation
of activation
Scalding protection on
+
Press
≥3 sec
1 2
Enter service menu
2
8
4
7
5
3
6
9
+
1
Display flashes
Press
≥2 sec
MADE IN GERMANY

1. 概述 21
2. 安全說明 22
3. 熱水器說明 22
4. 技術規格 23
5. 尺寸 24
6. 典型安裝 24
7. 安裝 25
安裝地點 26
安裝熱水器 26
8. 電氣連接 27
接線圖 27
結構前提 27
於固定位置的電氣連接 27
9. 初始操作 28
額定功率選擇 28
遙控 29
重新安裝 29
功能許可權 29
10. 使用方法 30
溫度設定 30
程式按鈕 30
溫度限制 31
恢復出廠設置 31
節能方法 32
ECO模式 32
功率極限 32
相容太陽能系統 32
保養工作後的排空 33
清潔保養 33
11. 環境和回收利用 33
12. 服務功能表 34
13. 故障檢修 36
快速指南 37
目錄