German pool cex9 User manual

CEX9/CEX9-U
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
Instantaneous
Water Heater
WH-CEX9-M-18(5)Printed in Germany
Online Warranty Registration

P.3
1. Overview
Contents
When ordering spare parts, please always specify the appliance model and serial number.
Screws and dowels
Hood
Filter
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
1. Overview 03
2. Safety instructions 04
3. Description of appliance 07
4. Technicalspecications 08
5. Dimensions 09
6. Typical installation 09
7. Installation 10
Mounting the appliance 11
Installing the appliance 11
8. Electricalconnection 12
Wiring diagram 12
Structural prerequisites 12
Electrical installation to a permanent connection 12
9. Initial operation 13
Selection of power rating 13
Shower Application 14
Reinstallation 14
Lock level 14
10. How to use 15
Temperature setting 15
Programme buttons 15
Temperature limitation 16
Reset to factory setting 16
How to save energy 17
ECO mode 17
Power limit 17
Operation with solar systems 17
 Ventingaftermaintenancework 18
 Cleaningandmaintenance 18
11. Environmentandrecycling 18
12. Service menu 19
13. Trouble-shooting and service 21
Quick reference guide 22

P.4 P.5
2. Safety Instructions2. Safety Instructions
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.
- 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,and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.

P.6 P.7
3. Description of Appliance
The instantaneous water heater CEX9/CEX9-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.
2. 安全說明
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℃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。

P.8 P.9
4.TechnicalSpecications
Model CEX 9 ELECTRONIC MPS®/ CEX 9-U ELECTRONIC MPS®
Energy efficiency class A *)
Rated capacity / rated current 6.0 / 9.6kW (27.3 / 40A)
Chosen capacity
(Chosen current) 6.6kW(28.7A) 8.8kW(38.3A)
Electrical connection 1~ / N / PE 220..240V AC
Min. required cable size 3) 3 x 4mm23 x 6 mm2
Hot water (l/min)
max.at∆t=25K 3.8 5.0
Rated volume 0.3 l
Heating system Bare wire heating system IES
®
Required spec. water
resistance @ 15 °C
Spec. electrical conductivity
≥1100Ωcm
≤90.9 mS/m
Inlet temperature ≤70°C
Flow rate to switch on –
max. flow rate 2.0 – 5.0 l/min1)
Pressure loss 0.2 bar at 2.5 l/min
1.3 bar at 9.0 l/min2)
Temperature choice 20 – 55 °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) Flow rate limited to achieve optimum temperature rise
2) Without flow regulator
3) The cable size may not exceed 10mm2
4) IP24 for the CEX-9-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.
• 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.
6. Typical Installation
5. Dimensions
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
312
100
177
108
37
Dimensions in mm
Example of an open-outlet installation with special tap: Example of a closed-outlet installation:
Rated pressure 1.0MPa (10 bar)
Connecting type Pressure resistant / Pressureless

P.10 P.11
6. Typical Installation
7. Installation
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 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CEX9isdesignedforwallmountedinstallationandhastobeinstalledwithwaterconnectors
downward; the CEX9-U is designed for undersink installation and has to be installed with water
connectors upward.
•TheapplianceCEX-9complieswithprotectiontypeIP25,andIP24fortheCEX-9-U.
•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1100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
MADEINGERMANY
CEX 9 at direct connection:
Supply for multiple outlets
CEX 9 with wall mounted mixer:
Supply for one sink
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).
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
37
26
37
26
140
7
57
153
84
41
26
28
96
140

P.12 P.13
8.ElectricalConnection
1
2
5
3
4
Only by a specialist! Please observe:
• VDE 0100
• 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 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!
1. 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.
2. 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!
3. Mount the cord grip. The cord grip must be used!
4. Strip the cables and plug them in the connecting
terminals according to the wiring diagram. The
appliance must be earthed.
5. 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 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
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“88“flashesinthedisplay.Ifnot,
please carefully read the note “Reinstallation“.
3. Select the maximum allowable power rating
depending on the local situation via the up and
downarrowkeys:8.8or6.6kW(display:“66“)230V.
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 - 30 seconds of water flow.
9. Initial Operation
®
Multiple Power System:
The rated capacity (max. power
consumption) is 8.8kW / 230 V
and can be reduced to 6.6kW.

P.14 P.15
9. Initial Operation
MADE IN GERMAN Y Reinstallation
In case the appliance is commissioned again under
different installation conditions during its initial
operation, it may be necessary to adopt 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“88“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. 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.
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, 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.16 P.17
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
Scalding protection on
+
Press
≥3 sec
1 2
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.
Top-up heating
When operating with preheated water (e.g. with solar
systems), you must ensure that the maximum inlet
temperature is not exceeded. 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.18 P.19
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
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“: