STIEBEL ELTRON WPM G COMMISSIONING Operation Instruction

Brand: STIEBEL ELTRON

Model: WPM G COMMISSIONING

Type: Operation Instruction

COMMISSIONING

Programming unit

» WPM G

2 | WPM G www.stiebel-eltron.com

CONTENTS

COMMISSIONING

1. General information ��3

1.1 Relevant documents_____________________________________________ 3

1.2 Safety instructions _______________________________________________ 3

1.3 Other symbols in this documentation _______________________ 3

1.4 Units of measurement __________________________________________ 3

2. Safety �� 3

2.1 Instructions, standards and regulations ____________________ 3

2.2 General safety instructions ____________________________________ 3

2.3 Notes _______________________________________________________________ 3

2.4 Test symbols ______________________________________________________ 3

3. Appliance description ��4

3.1 Accessories ________________________________________________________ 4

4. Operation ��4

4.1 Symbols ____________________________________________________________ 4

5. Commissioning ��4

5.1 Setting the language ____________________________________________ 4

5.2 Setting date and time ___________________________________________ 5

5.3 Network connection _____________________________________________ 5

5.4 Commissioning cascades _______________________________________ 6

5.5 Manual test _______________________________________________________ 8

6. Controller menu ��8

 Alarms _____________________________________________________________ 8

 Settings ____________________________________________________________ 9

 Language __________________________________________________________ 9

 System settings __________________________________________________ 9

 Installation ________________________________________________________ 9

 Heating ___________________________________________________________ 10

 Room temperature sensor ____________________________________ 11

 DHW _______________________________________________________________ 11

 Pool ________________________________________________________________ 12

 Cooling ____________________________________________________________ 12

 DHW draw-off control _________________________________________ 14

 Water charging system ________________________________________ 14

 Booster heater __________________________________________________ 15

 Hot gas ____________________________________________________________ 15

 Mixing valves ____________________________________________________ 16

 Buffer cylinder __________________________________________________ 17

 Alarm control/central alarm __________________________________ 18

 Current limiter ___________________________________________________ 18

 Flow switch ______________________________________________________ 19

 Brine monitoring _______________________________________________ 19

 SMART GRID _____________________________________________________ 19

 Cascade control _________________________________________________ 20

 Building management system (BMS) _______________________ 21

 Modbus ___________________________________________________________ 21

 Compressor settings ___________________________________________ 22

 Circulation pumps ______________________________________________ 22

 Temp. calibration _______________________________________________ 23

 Manual test ______________________________________________________ 23

 Process data _____________________________________________________ 25

 Operating mode _________________________________________________ 27

7. Appendix �� 28

7.1 Hydraulic connection diagram _______________________________ 28

COMMISSIONING

General information

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1. General information

These instructions are intended for qualiﬁed contractors.

1.1 Relevant documents

 Operating instructions for the programming unit

 Heat pump operating and installation instructions

 Operating and installation instructions for system

components

Note

Please see appliance operating instructions for informa-

tion on the "Guarantee" and "Environment and recycling".

1.2 Safety instructions

1.2.1 Structure of safety instructions

KEYWORD Type of risk

Here, possible consequences are listed that may result

from failure to observe the safety instructions.

 Steps to prevent the risk are listed.

1.2.2 Symbols, type of risk

Symbol Type of risk

Injury

Electrocution

1.2.3 Keywords

KEYWORD Meaning

DANGER Failure to observe this information will result in serious

injury or death.

WARNING Failure to observe this information may result in serious

injury or death.

CAUTION Failure to observe this information may result in non-seri-

ous or minor injury.

1.3 Other symbols in this documentation

Note

General information is identiﬁed by the adjacent symbol.

 Read these texts carefully.

Symbol Meaning

Material losses

(appliance damage, consequential losses and environmen-

tal pollution)

Appliance disposal

 This symbol indicates that you have to do something. The ac-

tion you need to take is described step by step.

 These symbols show you the software menu level (in

this example level3).

1.4 Units of measurement

Note

All measurements are given in mm unless stated oth-

erwise.

2. Safety

Only a qualiﬁed contractor should carry out installation, commis-

sioning, maintenance and repair of the appliance.

2.1 Instructions, standards and regulations

Note

Observe all applicable national and regional regulations

and instructions.

2.2 General safety instructions

We guarantee trouble-free function and operational reliability only

if original accessories and spare parts intended for the appliance

are used.

2.3 Notes

- The appliance should only be operated once it is fully in-

stalled and all safety equipment has been ﬁtted.

2.4 Test symbols

See type plate on the appliance.

COMMISSIONING

Appliance description

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3. Appliance description

The device is responsible for the processes that control and regu-

late the heat pump. The appliance allows remote monitoring and

heating system control via the internet.

If several heat demands are present at the same time, the appli-

ance switches back and forth between them. If a booster heater

is activated, DHW heating can run at the same time as the heating

mode and swimming pool heating.

3.1 Accessories

The following accessories can be installed for additional control

of the heat pump.

- Extension module

4. Operation

4.1 Symbols

Additional symbols are explained in the corresponding chapter.

Symbol Meaning

Call up main menu

Call up start screen

Authorisation code required

Confirm settings

Unconfirmed settings are reset to the previous

value.

Cancel settings

Scroll back one page

Scroll forward one page

Back

Reset to factory settings

The values on the current menu page are reset

to the factory settings.

Activate or deactivate functions

The symbol shows the activated function.

Activate or deactivate functions

The symbol shows the deactivated function.

Select one of two options

Symbol Meaning

Select one of two options

Receive further information

5. Commissioning

Note

If the heat pump needs to be restarted, the symbol is

shown on the device.

Note

Some setting options are only available in safe mode.

Once you have entered the access code, it does not need

to be re-entered for eight hours. The remaining time is

displayed top left of the screen.

 Press the button on the start screen to open the main

menu.

 Press the button to access safe mode.

 Enter the following access code: 607080

 Confirm the selection.

5.1 Setting the language

 Press the button on the start screen to open the main

menu.

 Press the button.

 Press the "Language" menu.

 Press the button to access the required language.

 Select the required language.

 Press the button to return to the higher ranking

menu.

Alter-

native

 Press the button to return to the main menu.

OFF

COMMISSIONING

Commissioning

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5.2 Setting date and time

Note

The primary heat pump transfers the date and time set-

tings to the secondary heat pumps.

 Press the button on the start screen to open the main

menu.

 Press the button.

 Press the "System settings" menu.

 Press the "Date/time" menu.

 Make the required changes.

 Confirm the selection.

 Press the button to return to the higher ranking

menu.

Alter-

native

 Press the button to return to the main menu.

5.3 Network connection

Note

 Please note that, for example, ﬁrewalls and faulty

connections may cause problems that prevent full

functionality.

 If problems occur, contact your internet provider or

network administrator.

The device can be used to monitor the heating system via the

internet. For monitoring, you will need an internet connection,

a router and the Internet Service Gateway (ISG). Observe the ISG

operating and installation instructions. When using the ISG, use

the static IP address.

5.3.1 Connecting to the internet

 Connect a patch cable to the RJ45 connector (see chapter

"Commissioning / Connecting to the internet" in the operat-

ing and installation instructions for the heat pump).

5.3.2 Network settings

Note

 If multiple heat pumps are installed, the network

settings must be entered separately for each heat

pump.

Note

 If settings are required on a router or other network

component, contact the network administrator.

The connection can be established via DHCP or a static IP address.

Ensure that you select the same connection for all heat pumps.

 Press the button on the start screen to open the main

menu.

 Press the button.

 Select the "System settings" menu.

 Select the "Network settings" menu.

Connection via DHCP

Note

 Use dynamic assignment of the network address if

the heat pump is integrated in a network.

 Select the required connection type.

 Enter the required information in the corresponding

fields.

 Press the button to return to the higher ranking

menu.

Alter-

native

 Press the button to return to the main menu.

COMMISSIONING

Commissioning

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Connection via a static IP address

Note

 Use static assignment of the network address if the

heat pump is not integrated in a network.

Note

The router is only needed for setup via an external net-

work connection and for multiple secondary heat pumps.

Note

 Do not change the setting in the network mask

(255.255.255.0).

 Select the required connection type.

 Enter the required information in the corresponding

fields.

 Confirm the selection.

 Press the button to return to the higher ranking

menu.

Alter-

native

 Press the button to return to the main menu.

5.4 Commissioning cascades

Note

Only one heat pump can be deﬁned as the primary heat

pump in the heating system.

Note

 If you install a cascade without a switch or hub,

set the same network mask on the secondary heat

pumps as on the primary heat pump.

 Restart the primary heat pump.

 Restart the secondary heat pumps.

5.4.1 Setting up the primary and secondary heat pump

Note

When connecting heat pumps of a different series, ob-

serve the instructions regarding the "Settings"/ "Cascade

control" menu.

 Press the button on the start screen to open the main

menu.

 Press the button.

 Select the "Installation" menu.

 Activate cascade control.

 Press the button to return to the higher ranking

menu.

 Tap the button to access the "Cascade control" menu.

 Select the "Cascade control" menu on the primary

heat pump.

 Set the slide toggle to "Master=1".

 Make the required settings.

 Confirm the selection.

 Select the "Cascade control" menu on the secondary

heat pump.

 Set the slide toggle to "Slave=0".

 Assign a heat pump ID ≥1 to the secondary heat

pump. Assign IDs in chronological order for further

secondary heat pumps.

 Make the required settings.

 Confirm the selection.

 Follow the same sequence for additional secondary

heat pumps.

 Press the button to return to the main menu.

 Press the button.

 Restart the primary heat pump.

 Restart the secondary heat pumps.

If there is communication between the primary and secondary

heat pump, the heat pump ID is displayed on the secondary heat

pump screen.

Example: Without external network connection (for cascades

with only one secondary heat pump)

Note

Monitoring via the internet is not possible.

 If you want to set up monitoring via the internet,

observe the example "With external network con-

nection (for cascades with one or more secondary

heat pumps)".

 Use an Ethernet cable (Standard Cat 5 network cable, RJ45

connector).

 Connect the heat pumps via the connection on the program-

ming unit. Observe chapter "Installation/ Removing the cas-

ing parts" in the operating and installation instructions for

the heat pump.

COMMISSIONING

Commissioning

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D0000084758

1 2

1 Primary heat pump (e.g. IPaddress: 192.168.0.100)

2 Secondary heat pump (e.g. IPaddress: 192.168.0.101)

Example: With external network connection (for cascades with

one or more secondary heat pumps)

D0000084757

6 7 8 9 x

1 Router/ switch

2 Internet access via router

3 Online web browser

4 Online webserver and database

5 Internet Service Gateway (ISG)

6 Primary heat pump (e.g. IPaddress: 192.168.0.100)

7 Secondary heat pump (e.g. IPaddress: 192.168.0.101)

8 Secondary heat pump (e.g. IPaddress: 192.168.0.102)

9 Secondary heat pump (e.g. IPaddress: 192.168.0.103)

x Secondary heat pump (e.g. IPaddress: 192.168.0.xxx)

5.4.2 Messages

If one of the following messages appears, the primary heat pump

will no longer control the corresponding secondary heat pump for

the duration of the message.

Message Cause Remedy

Version error

The software version

of the secondary heat

pump is not identical

to the software ver-

sion of the primary

heat pump.

Have our customer

support install the

correct software ver-

sion.

Message Cause Remedy

Heat pump al-

ready registered

The secondary heat

pump is registered

under a different ID.

In the settings,

change the ID to the

first assigned ID or re-

start the primary heat

pump.

ID already regis-

tered

The ID has been as-

signed to another sec-

ondary heat pump.

Change the ID.

Multiple errors Several of the above

messages are active.

Correct the faults one

after the other.

The corresponding secondary heat pump must be reconnected

manually to the primary heat pump. The connection can be es-

tablished in two ways.

 Press the button.

Alter-

native

 Check the settings.

 Make any necessary changes.

 Press the button to return to the main menu.

 Press the button.

 Restart the primary heat pump.

 Restart the secondary heat pumps.

5.4.3 Deﬁning the operating mode

For each heat pump, you need to deﬁne which heat pump is ena-

bled for which heat demand. The heat pumps can be enabled for

heating mode, DHW heating, swimming pool heating and cooling.

 Activate the required functions in the "Installation" menu.

The functions can be managed in the "Settings" menu.

Example: Enable heating mode

 Press the button on the start screen to open the main

menu.

 Press the button.

 Select the "Installation" menu.

 Activate heating mode.

 Press the button to return to the higher ranking

menu.

Alter-

native

 Press the button to return to the main menu.

COMMISSIONING

Controller menu

8 | WPM G www.stiebel-eltron.com

5.5 Manual test

Note

 Observe the chapter "Commissioning/ Manual test

of connected components" in the operating and in-

stallation instructions for the heat pump.

Note

A hand is displayed when the manual test is activated.

5.5.1 Activate manual test

 Press the button on the start screen to open the main

menu.

 Press the button.

 Tap the button to access the "Manual test" menu.

 Press the "Manual test" menu.

 Activate the function.

 Select the required test in the submenu.

5.5.2 End manual test

 Press the button on the start screen to open the main

menu.

 Press the button.

 Tap the button to access the "Manual test" menu.

 Press the "Manual test" menu.

 Deactivate the function.

6. Controller menu

Note

Some setting options are only available in safe mode.

Once you have entered the access code, it does not need

to be re-entered for eight hours. The remaining time is

displayed top left of the screen.

Note

Certain menu items are protected by a code. The code set

at the factory is 607080.

 Alarms

 Settings

 Language

 System settings

 Installation

 Heating

 Room temperature sensor

 DHW

 Pool

 Cooling

 DHW draw-off control

 Water charging system

 Booster heater

 Hot gas

 Mixing valves

 Buffer cylinder

 Alarm control/central alarm

 Current limiter

 Flow switch

 Brine monitoring

 SMART GRID

 Cascade control

 Building management system (BMS)

 Modbus

 Compressor settings

 Circulation pumps

 Temp. calibration

 Manual test

 Process data

 Operating data

 Operating time

 Version information

 Graphs

 Energy measurement

 Heat pump status

 Change log

 Operating mode

Alarms

In this view, you can see the last 100 active and acknowledged

fault messages. The list is updated every minute and every time

the appliance is started.

OFF

COMMISSIONING

Controller menu

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Controller menu: Settings

Settings

 Language

 Set the required system language.

 System settings

 Network settings

 Date/time

 Display settings

 Activate screen cleaning function

 Brightness

 Enable locked operation

 Activate locked operation

 Logging

 Network settings

The internet connection can be established via DHCP or a static

IP address.

 Make the required settings. Observe the description in the

chapter "Commissioning/ Network connection/ Network

settings").

 Date/time

 Set the current date and current time.

 Display settings

 Activate screen cleaning function

The display is locked for 15seconds. During this time you can

clean the display without making any unintentional adjustments.

 Brightness

 Set the required brightness of the display backlighting.

 Enable locked operation

 Activate or deactivate the function.

 Activate locked operation

Can only be activated if "Enable locked operation" is activated.

 Logging

Note

 Do not adjust the time during logging.

The controller allows you to export log ﬁles that can be read on a

computer. When logging is running, the data is recorded directly

onto the USB stick and not on the internal memory. Older data is

not displaced.

 Insert a USB stick into the USB port.

 Activate the "Logging" function. Logging starts.

 If the menu cannot be activated, remove the USB stick. Re-

turn to the menu. Insert the USB stick into the USB port.

 If the menu still cannot be activated, replace the USB stick.

 If you want to terminate logging, deactivate the "Logging"

function.

A message appears when logging has ﬁnished.

 Remove the USB stick.

 Installation

 Heating

 Room temperature sensor

 DHW

 Pool

 Cooling

 DHW draw-off control

 Water charging system

 Cascade control

 Building management system (BMS)

 Heating circuit 1

 Heating circuit 2

 Heating circuit 3

 Heating circuit 4

 Heating circuit 5

 Booster heater

 Hot gas

 Current limiter

 Brine monitoring

 External brine pump

 Brine pump external start

 Buffer cylinder

 Flow switch

 Central fault

 External alarm

 SMART GRID

 Heating

 Activate or deactivate the function.

When the function is activated, the corresponding symbol appears

in the main menu. The symbol allows you quick access to another

menu.

 Room temperature sensor

 Activate or deactivate the function.

When the function is activated, the sensor measures the current

room temperature.

 DHW

 Activate or deactivate the function.

 Pool

 Choose the module via which the function is connected.

 Cooling

 Choose the module via which the function is connected.

 DHW draw-off control

 Activate or deactivate the function.

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Controller menu

10 | WPM G www.stiebel-eltron.com

Controller menu: Settings

 Water charging system

 Activate or deactivate the function.

 Cascade control

 Activate or deactivate the function.

When the function is activated, multiple heat pumps can be in-

stalled in the heating system.

 Building management system (BMS)

 Activate or deactivate the function.

If the function is activated, communication with the ISG can take

place.

 Adjust the parameter.

Parameter Setting

Modbus mode (Building management system (BMS)) TCP

 Heating circuit

 Activate or deactivate the function.

When the function is activated, the settings made apply to the cor-

responding heating circuit. The corresponding symbol appears in

the main menu. The symbol allows you quick access to this menu.

When the function is deactivated, the higher ranking settings are

used to control the heating circuit.

 Booster heater

 Choose the module via which the function is connected.

 Hot gas

 Activate or deactivate the function.

When the function is activated, hot gas can be used for DHW

heating.

 Current limiter

 Activate or deactivate the function.

 Brine monitoring

 Activate or deactivate the function.

When the function is activated, the device controls the brine tem-

perature.

 External brine pump

 Choose the module via which the function is connected.

 Brine pump external start

 Activate or deactivate the function.

 Buffer cylinder

 Activate or deactivate the function.

When the function is activated, there is a buffer cylinder in the

heating system.

 If the buffer cylinder is to be charged with a certain tempera-

ture, install a buffer sensor.

 Flow switch

Note

If no ﬂow switch is connected, but the function is activat-

ed, the heat pump will not start.

Note

Several ﬂow switches can be used in cascades.

 Activate or deactivate the function.

 Central fault

 Activate or deactivate the function.

 External alarm

 Activate or deactivate the function.

When this function is activated, an external fault is registered.

 SMART GRID

 Activate or deactivate the function.

"SG Ready" is a trademark of the Bundesverband

Wärmepumpe e.V. (German Heat Pump Association)

and denotes a property of heat pumps whose control

technology enables them to be integrated into a smart

power grid (SG = Smart Grid).

 Heating

 Heating mode

 Heating type

 Heating curve

 Min. flow

 Max. flow

 Summer mode

 Heating time

 Comfort factor

 Switching delay

 Calculated start/stop threshold

 Fixed value operation

 Set flow temp.

 System return temperature sensor

 Heating mode

 Activate or deactivate the function.

When the function is activated, the corresponding symbol ap-

pears in the main menu. The symbol allows you quick access to

another menu. Observe the information regarding the menu in

chapter "Further menus/ Heating settings" in these instructions

and "Settings/ Adjusting the temperature (central heating)/ In the

"Heating" menu" in the operating instructions for the appliance.

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Controller menu

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Controller menu: Settings

 Heating type

 Choose whether the rooms are heated by radiators or under-

ﬂoor heating.

 Heating curve

 Adjust the heating curve.

 Min. ﬂow

 Set the minimum ﬂow temperature.

 Max. ﬂow

 Set the maximum ﬂow temperature.

 Summer mode

 Set the outside temperature above which the heat pump is

no longer available to heat the building.

When the temperature falls below this setting, the heat pump will

start to heat the building again.

 Heating time

 Set how long the heat pump is responsible for heating when

there is a heating demand.

 Comfort factor

The heating curve setting is multiplied by the set factor. This re-

sults in the new value for the heating curve.

 Switching delay

A delay prevents the different output stages switching on or off

too quickly.

 Set the time that must pass until the next output stage

switches on or off.

 Calculated start/stop threshold

If the ﬂow or return temperature deviates from the set tempera-

tures by this threshold value, the heat pump is switched on or off.

 Set the value for the temperature deviation from the set ﬂow

and return temperature at which the heat pump is switched

on or off.

 Fixed value operation

 Activate or deactivate the function.

When this function is activated, the heat pump heats to a ﬁxed

temperature, independently of the heating curve.

 Set ﬂow temp.

 Set the temperature to which the ﬂow is heated in Fixed

value operation.

 System return temperature sensor

 Activate or deactivate the function.

 Room temperature sensor

 Activate room sensor

 Passive = 0, active = 1

 Room temperature sensor influence

 Activate room sensor

 Activate or deactivate the function.

When the function is activated, the sensor measures the current

room temperature.

 Passive = 0, active = 1

 Set whether the temperature is measured actively or passive-

ly.

If the temperature is measured actively, the room sensor inﬂu-

ences the heating mode.

 Room temperature sensor inﬂuence

 Set whether the room sensor only measures the temperature

or also helps to control the room temperature. The higher the

value, the more inﬂuence the room sensor has.

 DHW

 System DHW mode

 DHW mode

 Separate sensor (autonomous DHW)

 System DHW mode

 Activate or deactivate the function.

 DHW mode

 Activate or deactivate the function.

 Primary heat pump DHW mode

Can only be set when the "System DHW mode" function is acti-

vated.

 Activate or deactivate the function.

When this function is activated, DHW heating is carried out by the

primary heat pump.

 DHW mode start temp.

 Set the DHW temperature at which DHW heating starts.

 DHW mode stop temp.

 Set the DHW temperature at which DHW heating stops.

 Sensor inﬂuence

 Set how the inﬂuence is shared between the top and bottom

sensor.

If you set a mid-range value, the top and bottom sensors have the

same amount of inﬂuence.

COMMISSIONING

Controller menu

12 | WPM G www.stiebel-eltron.com

Controller menu: Settings

 DHW mode max. runtime

 Set how long the heat pump is to be responsible for DHW

heating when there is a DHW demand.

After this time has elapsed, the device checks whether there is a

heat demand. If there is a heat demand, this demand is processed

by the heat pump.

 Pasteurisation mode

 Activate or deactivate the function.

When the function is activated, the DHW in the DHW cylinder is

heated according to the settings.

 Max. heating phase

 Set the number of days that should pass before the pasteuri-

sation program next starts-up.

 Pasteurisation mode max. runtime

 Set the duration for which the pasteurisation program should

run.

 Pasteurisation mode stop temp.

 Set the temperature which must be reached before the pas-

teurisation program is terminated.

 Pool

 Pool

 Set pool temperature

 Pool hysteresis

 Required heating temperature

 Switching delay

 Pool runtime

 Pool heating with booster heater

 Activate booster heater for pool

Parameter Unit

Pool return temperature °C

Current return temperature from the pool

Pool flow temperature °C

Current flow temperature to the pool

 Pool

Can only be activated when a module is selected.

 Activate or deactivate the function.

When the function is activated, the heat pump can be used for

pool water heating. The corresponding symbol appears in the

main menu. The symbol allows you quick access to this menu.

 Set pool temperature

 Set the water temperature to which the pool should be heat-

ed.

 Pool hysteresis

 Set the temperature deviation from the set temperature at

which heating of the swimming pool water starts.

Example

Pool hysteresis 1 K

Set pool temperature 20 °C

Start swimming pool heating 18.5 °C

End swimming pool heating 21.5 °C

 Required heating temperature

 Set the ﬂow temperature at which the pool should be heated.

 Switching delay

 Set the time after which the heat pump starts to run when

there is a swimming pool demand.

 Pool runtime

 Set how long the heat pump is responsible for swimming

pool heating when there is a swimming pool demand.

After this time has elapsed, the device checks whether there is a

heat demand. If there is a heat demand, this demand is processed

by the heat pump.

 Pool heating with booster heater

 Activate or deactivate the function.

When the function is activated, the booster heater can be used to

support the heat pump for a swimming pool demand.

 Activate booster heater for pool

Can only be activated when the "Pool heating with booster heater"

function is enabled.

 Activate or deactivate the function.

When the function is activated, the booster heater can support the

heat pump when there is a swimming pool demand.

 Cooling

 Passive cooling

 Active cooling

 Surplus heat: Brine = 1, cooler = 2

 Summer mode cooling temperature

 Start temp. Cooling

 Shutdown temp. Cooling

 Switching delay

 Delay, directional control valve, source

 Cooling - mixing valve

 Set cooling temperature

 Activate dew point sensor

 Alarm limit deviation

 Alarm delay

 Cooling - cylinder

 Alarm high limit

 Alarm delay

 Cooling - surplus heat

COMMISSIONING

Controller menu

www.stiebel-eltron.com WPM G | 13

Controller menu: Settings

 Activate surplus heat dissipation

 Set return temperature

 Alarm limit deviation

 Alarm delay

To be able to cool with the primary and secondary heat pumps, the

heat pumps must be connected to the same heat source.

Passive cooling

For passive cooling, the brine is routed through the bore hole

where it is cooled.

 Set passive cooling on the primary heat pump.

 Set passive cooling on the required secondary heat pumps.

Active cooling

For active cooling, the brine is routed through the evaporator

and actively cooled via the refrigerant circuit. The waste heat can

be used for the heating mode, DHW heating or swimming pool

heating. When the waste heat is not needed, it is routed through

the bore hole or to the air cooler.

 Set active cooling on the primary heat pump. The secondary

heat pumps are activated automatically.

Parameter Unit

Buffer cylinder temperature °C

Current temperature in the cooling buffer cylinder

Cooling flow temperature °C

 Passive cooling

Can only be activated if an extension module (EM) is selected.

 Activate or deactivate the function.

When the function is activated, the building is cooled passively.

The corresponding symbol appears in the main menu. The symbol

allows you quick access to this menu.

 Active cooling

Can only be activated if an extension module (EM) is selected.

 Activate or deactivate the function.

When the function is activated, the building is cooled actively. The

corresponding symbol appears in the main menu. The symbol

allows you quick access to this menu.

 Surplus heat: Brine = 1, cooler = 2

Can only be adjusted if the "Active cooling" function is activated.

 Set whether the excess heat should be discharged into the

borehole or via the air cooler.

 Summer mode cooling temperature

 Set the outside temperature from which the rooms will be

cooled.

 Start temp. Cooling

 Set the cooling buffer cylinder temperature, at which cooling

mode should start.

 Shutdown temp. Cooling

 Set the cooling buffer cylinder temperature, at which cooling

mode should stop.

 Switching delay

A delay prevents the different output stages switching on or off

too quickly.

 Set the time that must pass until the next output stage

switches on or off.

 Reconnect delay, directional control valve, borehole

 Set a time after which cooling can take place again.

 Cooling - mixing valve

Parameter Unit

Cooling flow sensor °C

Current temperature captured by the flow sensor

Required cooling flow temperature °C

Feedback, opening level %

 Set cooling temperature

 Set the ﬂow temperature for cooling mode.

 Activate dew point sensor

 Activate or deactivate the function.

When the function is activated, the dew point is monitored.

 Alarm limit deviation

 Set a temperature which will trigger the display of a fault

message on the device when reached.

 Alarm delay

 Set a time after which a fault message is displayed on the

device.

 Cooling - cylinder

Parameter Unit

Buffer cylinder temperature °C

Current temperature in buffer cylinder

 Alarm high limit

 Set a temperature which will trigger the display of a fault

message on the device when reached.

COMMISSIONING

Controller menu

14 | WPM G www.stiebel-eltron.com

Controller menu: Settings

 Alarm delay

 Set a time after which a fault message is displayed on the

device.

 Cooling - surplus heat

Parameter Unit

Heat surplus, flow °C

Heat surplus, return °C

 Activate surplus heat dissipation

 Activate or deactivate the function.

 Set return temperature

 Select the set temperature at which heat dissipation should

start.

 Alarm limit deviation

 Set a temperature which will trigger the display of a fault

message on the device when reached.

 Alarm delay

 Set a time after which a fault message is displayed on the

device.

 DHW draw-off control

 DHW draw-off control

 Set DHW draw-off temp.

 Alarm limit DHW

 Alarm delay DHW

 Alarm limit DHW return

 Alarm delay DHW return

 DHW draw-off control booster heater

 DHW booster heater start temp.

 Booster heater start delay

 DHW booster heater stop temp.

Parameter Unit

DHW draw-off temp. °C

Current temperature at the draw-off points

DHW draw-off control return temp. °C

Current DHW return temperature

Hot gas temp. DHW °C

Current DHW temperature in the DHW cylinder

 DHW draw-off control

Can only be activated when a module is selected.

 Activate or deactivate the function.

When the function is activated, DHW is delivered at the required

temperature at the draw-off points.

 Set DHW draw-off temp.

 Set the temperature to be supplied at the draw-off points.

 Alarm limit DHW

 Set a temperature which will trigger the display of a fault

message on the device when reached. This function prevents

too high DHW temperatures at the draw-off points.

 Alarm delay DHW

 Set a time after which a fault message is displayed on the

device. This function delays the appearance of a fault mes-

sage on the appliance when the DHW temperature at the

draw-off points reaches the limit value.

 Alarm limit DHW return

 Set a temperature which will trigger the display of a fault

message on the device when reached.

 Alarm delay DHW return

 Set a time after which a fault message is displayed on the

device.

 DHW draw-off control booster heater

 Activate or deactivate the function.

When this function is activated, the DHW between DHW cylinder

and draw-off points is further heated-up with the booster heater.

 DHW booster heater start temp.

 Set the DHW temperature at which the booster heater will

support the heat pump.

 Booster heater start delay

 Set the time after which the booster heater will support the

heat pump.

 DHW booster heater stop temp.

 Set the DHW temperature at which the booster heater will

stop supporting the heat pump.

 Water charging system

 Activate water charging system

 Set temperature

 Water charging system - activate hot gas function

 Set hot gas temperature

 Alarm delay

 Alarm limit

Parameter Unit

Temperature °C

Current return temperature from heat exchanger to

heat pump

COMMISSIONING

Controller menu

www.stiebel-eltron.com WPM G | 15

Controller menu: Settings

 Activate water charging system

Can only be activated when a module is selected.

 Activate or deactivate the function.

 Set temperature

 Select the set temperature.

 Water charging system - activate hot gas function

 Activate or deactivate the function.

 Set hot gas temperature

 Alarm delay

 Set a time after which a fault message is displayed on the

device.

 Alarm limit

 Set a temperature which will trigger the display of a fault

message on the device when reached.

 Booster heater

 Activate booster heater

 Temporarily deactivate external booster heater

 Outside temperature-dependent

 Outside temperature limit

 Start delay

 Start limit calculated demand

 Stop limit calculated demand

 Heat-up time

 Cooldown time

 Deactivate cooldown delay

 System flow offset

 Accounting period

 P

 I

 Minimum opening level

 Maximum opening level

Parameter Unit

Feedback, opening level %

 Activate booster heater

 Activate or deactivate the function.

When the function is activated, the booster heater switches on as

the last output stage when there is a heat demand.

 Temporarily deactivate external booster heater

 Activate or deactivate the function.

 Outside temperature-dependent

 Activate or deactivate the function.

When this function is activated, the booster heater is activated at

the set outside temperature.

 Outside temperature limit

Can only be adjusted if the "Outside temperature-dependent"

function is activated.

 Set the outside temperature from which the booster heater

will support the heat pump.

 Start delay

A delay prevents the booster heater switching on too quickly when

there is a heat demand.

 Set the time after which the booster heater will support the

heat pump.

 Start limit calculated demand

 Stop limit calculated demand

 Heat-up time

 Set how long the booster heater will support the heat pump.

 Cooldown time

 Deactivate cooldown delay

 System ﬂow offset

 Accounting period

 P

 I

 Minimum opening level

 Set the mixing valve opening level.

 Maximum opening level

 Set the mixing valve opening level.

 Hot gas

 Hot gas mode

 Start temp. Hot gas

 Stop temp. lower limit Hot gas

 Stop temp. upper limit Hot gas

 Activate hot gas diverter valve

 Connection temperature for cylinder charging with hot gas

 Changeover temp. for cylinder charging with hot gas

 Hot gas mode

 Activate or deactivate the function.

When the function is activated, hot gas can be used for DHW

heating.

COMMISSIONING

Controller menu

16 | WPM G www.stiebel-eltron.com

Controller menu: Settings

 Start temp. Hot gas

 Set the temperature at which hot gas is used for DHW heat-

ing.

 Stop temp. lower limit Hot gas

 Set the minimum temperature at which the hot gas pump

switches off.

 Stop temp. upper limit Hot gas

 Set the maximum temperature at which the hot gas pump

switches off.

 Activate hot gas diverter valve

 Activate or deactivate the function.

 Connection temperature for cylinder charging with hot

gas

 Changeover temp. for cylinder charging with hot gas

Can only be adjusted if the "Activate hot gas diverter valve" func-

tion is activated.

 Mixing valves

 Heating circuit 1

 Activate heating circuit 1

 Type

 Heating type

 Heating curve

 Min. flow

 Max. flow

 Set cooling temperature

 Cooling subject to season

 Summer mode cooling temperature

 Internal brine pump increase

 Set/actual deviation

 Alarm delay

 Heating circuit 2 / 3 / 4 / 5

 Activate heating circuit x

 Heating type

 Heating curve

 Min. flow

 Max. flow

 Activate room sensor

 Passive = 0, active = 1

 Set temperature

 Room temperature sensor influence

 Subject to heating season

 Seasonal heating temperature

Parameter Unit

Room temperature °C

Temperature captured by room sensor

 Heating circuit 1

 Activate heating circuit 1

 Activate or deactivate the function.

When the function is activated, the settings made here apply for

the corresponding heating circuit. The corresponding symbol ap-

pears in the main menu. The symbol allows you quick access to

this menu.

When the function is deactivated, the higher ranking settings are

used to control the heating circuit.

 Type

 Choose whether the heating circuit is used for heating or

cooling.

 Heating type

 Choose whether the rooms are heated by radiators or under-

ﬂoor heating.

 Heating curve

 Adjust the heating curve.

 Min. ﬂow

 Set the minimum temperature for the system ﬂow.

 Max. ﬂow

 Set the maximum temperature for the system ﬂow.

 Set cooling temperature

Can only be activated if the heating circuit is used for cooling.

 Set the ﬂow temperature for cooling mode.

 Cooling subject to season

Can only be activated if the heating circuit is used for cooling.

 Activate or deactivate the function.

 Summer mode cooling temperature

Can only be activated if the heating circuit is used for cooling.

 Set the outside temperature from which the rooms will be

cooled.

 Internal brine pump increase

Can only be activated if the heating circuit is used for cooling.

 Activate or deactivate the function.

 Set/actual deviation

 Set the maximum temperature deviation; if it is reached, a

fault message is displayed on the device.

COMMISSIONING

Controller menu

www.stiebel-eltron.com WPM G | 17

Controller menu: Settings

 Alarm delay

 Set a time after which a fault message is displayed on the

device.

 Heating circuit 2 / 3 / 4 / 5

Note

You need one extension module for mixer control of heat-

ing circuits 2 and 3, and one for heating circuits 4 and 5.

 Activate heating circuit x

Can only be activated when a module is selected.

 Activate or deactivate the function.

When the function is activated, the settings made here apply for

the corresponding heating circuit. The corresponding symbol ap-

pears in the main menu. The symbol allows you quick access to

this menu.

When the function is deactivated, the higher ranking settings are

used to control the heating circuit.

 Heating type

 Choose whether the rooms are heated by radiators or under-

ﬂoor heating.

 Heating curve

 Adjust the heating curve.

 Min. ﬂow

 Set the minimum temperature for the system ﬂow.

 Max. ﬂow

 Set the maximum temperature for the system ﬂow.

 Activate room sensor

 Activate or deactivate the function.

When the function is activated, the sensor measures the current

room temperature.

 Passive = 0, active = 1

 Set whether the temperature is measured actively or passive-

ly.

If the temperature is measured actively, the room sensor inﬂu-

ences the heating mode.

 Set temperature

 Set the temperature to which the assigned rooms should be

heated.

 Room temperature sensor inﬂuence

 Set whether the room sensor only measures the temperature

or also helps to control the room temperature. The higher the

value, the more inﬂuence the room sensor has.

 Subject to heating season

 Activate or deactivate the function.

 Seasonal heating temperature

 Set the outside temperature below which the rooms are

heated.

 Buffer cylinder

 Buffer cylinder type

 Buffer cylinder temperature, automatic mode

 Buffer cylinder overcharge

 Required buffer temperature

 Booster heater increase

 Booster heater max. application limit

 Buffer cylinder configuration

 Heat pump start offset

 Booster heater start offset

 Summer mode permissible

Parameter Unit

Buffer cylinder temperature °C

Current temperature in buffer cylinder

System flow °C

Current temperature in system flow

 Buffer cylinder type

 Set the hydraulic connection of the buffer cylinder.

The hydraulic connection diagrams can be found in the appendix.

Option

None

A buffer cylinder may be installed in the heating sys-

tem. The buffer cylinder is not overcharged. The sen-

sor for the system return is not installed.

The heat pump charges the buffer cylinder. The buffer

cylinder supplies the heating system via the mixing

valve. Overcharging the buffer cylinder is allowed. An

internal booster heater is allowed.

The heat pump charges the buffer cylinder. An unreg-

ulated external heat source (e.g. high capacity incin-

erator) charges the buffer cylinder. When the set tem-

perature according to the heating curve is reached,

the heat pump is switched off. The buffer cylinder

supplies the heating system via the mixing valve.

The heat pump charges the buffer cylinder. An ex-

ternally regulated second heat generator (e.g. high

capacity incinerator) charges the buffer cylinder via

a mixing valve managed by the internal control unit.

The buffer cylinder supplies the heating system via

the mixing valve. Overcharging the buffer cylinder is

allowed.

The heat pump charges the buffer cylinder. A regulat-

ed external second heat generator (e.g. high capacity

incinerator) provides heat directly to the heating

system via a mixing valve. The second heat generator

is controlled by the internal control unit of the heat

pump. The buffer cylinder is not charged by the sec-

ond heat generator. Overcharging the buffer cylinder

is allowed.

COMMISSIONING

Controller menu

18 | WPM G www.stiebel-eltron.com

Controller menu: Settings

 Buffer cylinder temperature, automatic mode

Can only be activated if the "Activate buffer cylinder mixer circuit

control" function is switched on.

 Activate or deactivate the function.

When this function is activated, the appliance automatically regu-

lates the set mixer circuit temperature under consideration of the

"Buffer cylinder overcharge".

 Buffer cylinder overcharge

Can only be adjusted if the "Buffer cylinder temperature, auto-

matic mode" function is activated.

 Set the temperature deviation to which the buffer cylinder

should be heated.

The overcharge is an increase of the set mixer circuit temperature

and is therefore an offset value for the mixer circuit.

 Required buffer temperature

 Set the temperature to which the water in the buffer cylinder

is heated.

 Booster heater increase

Can only be activated if the "Activate booster heater" function in

the "Booster heater" menu is switched on.

 Activate or deactivate the function.

When this function is activated, the booster heater can be used.

 Booster heater max. application limit

Can only be adjusted if the "Booster heater increase" function is

activated.

 Set the temperature up to which the booster heater will sup-

port the heat pump.

 Buffer cylinder conﬁguration

Start at heating curve demand

 Activate or deactivate the function.

When the function is activated, the contents of the buffer cylinder

are heated based on the heating curve.

Start at ﬁxed temperature offset

 Activate or deactivate the function.

When the function is activated, the contents of the buffer cylinder

are heated when the set temperature deviation is reached.

 Heat pump start offset

Can only be adjusted if the "Start at ﬁxed temperature offset"

function is activated.

 Set the temperature deviation at which the heat pump should

cover the heat demand.

 Booster heater start offset

Can only be adjusted if the "Start at ﬁxed temperature offset"

function is activated.

 Set the temperature deviation at which the booster heater

will support the heat pump with the heat demand.

 Summer mode permissible

Can only be adjusted if the "Start at ﬁxed temperature offset"

function is activated.

 Activate or deactivate the function.

If this function is activated, the heat pump is switched off when the

outside temperature falls in line with the set outside temperature

(see chapter "Further menus/ Heating settings").

 Alarm control/central alarm

 Class

 External alarm input

 Class

 Choose which fault categories are displayed and which trig-

ger the differential relay.

 External alarm input

 Activate or deactivate the function.

When this function is activated, an external fault is registered.

 Current limiter

 Activate current limiter

 Limit booster heater

 Limiting secondary appliances

 Maximum power consumption (per phase)

 Booster heater hysteresis

 Compressor hysteresis

Parameter Unit

L1 current A

L2 current A

L3 current A

Maximum current at present A

 Activate current limiter

Can only be activated when a module is selected.

 Limit booster heater

Can only be activated if "Activate current limiter" is activated.

 Activate or deactivate the function.

 Limiting secondary appliances

Can only be activated if "Activate current limiter" is activated.

 Activate or deactivate the function.

COMMISSIONING

Controller menu

www.stiebel-eltron.com WPM G | 19

Controller menu: Settings

 Maximum power consumption (per phase)

Can only be adjusted if the "Activate current limiter" function is

activated.

 Booster heater hysteresis

 Compressor hysteresis

Can only be adjusted if the "Activate current limiter" function is

activated.

 Flow switch

 Brine pressure switch

 Local flow switch

 Attempt restart if pressure drops/ Activate start attempts if pressure/

flow problems occur

 Only during compressor operation

 Brine pressure switch

 Activate or deactivate the function.

When the function is activated, the brine pressure is controlled.

 Local ﬂow switch

 Activate or deactivate the function.

 Attempt restart if pressure drops/ Activate start

attempts if pressure/ﬂow problems occur

Can only be activated if the "Brine pressure switch" function is

switched on.

 Activate or deactivate the function.

 Only during compressor operation

Can only be activated if the "Brine pressure switch" function is

switched on.

 Activate or deactivate the function.

When the function is activated, monitoring takes place while the

compressor is running.

 Brine monitoring

 Brine outlet monitoring

 Brine alarm

 Evaporator frost protection active

 Min. brine outlet

 Alarm limit, brine temperature spread

 Brine inlet monitoring

 Min. brine inlet

 Switching delay, ramp up

 Switching delay, ramp down

 Brine outlet monitoring

 Activate or deactivate the function.

When this function is activated, the device monitors the outlet

temperature of the brine coming from the heat pump. If the tem-

perature falls below the set value, the brine pump and the com-

pressor are switched off.

 Brine alarm

 Activate or deactivate the function.

When this function is activated, a fault message is displayed on

the device if the set temperature is undershot.

 Evaporator frost protection active

 Activate or deactivate the function.

 Min. brine outlet

Can only be adjusted if the "Brine outlet monitoring" function is

activated.

 Set the minimum brine outlet temperature.

 Alarm limit, brine temperature spread

 Set a temperature differential between the brine inlet and

brine outlet temperatures.

A fault message is displayed on the device if there is a deviation

from the set temperature differential. The heat pump is switched

off.

 Brine inlet monitoring

 Activate or deactivate the function.

When this function is activated, the device monitors the inlet tem-

perature of the brine entering the heat pump. If the temperature

falls below the set value, the brine pump and the compressor are

switched off.

 Min. brine inlet

 Set the minimum brine inlet temperature.

 Switching delay, ramp up

Can only be adjusted if the "Brine inlet monitoring" function is

activated.

 Set the time after which the brine pump output is increased,

if the brine temperature is above the minimum temperature.

 Switching delay, ramp down

Can only be adjusted if the "Brine inlet monitoring" function is

activated.

 Set the time after which brine pump output is reduced, so

the brine temperature does not fall too quickly.

 SMART GRID

 Room temperature increase - accelerated mode

 Room temperature increase - maximum mode

 DHW start temperature - forced mode

 DHW stop temperature - forced mode

 DHW start temperature - maximum mode

COMMISSIONING

Controller menu

20 | WPM G www.stiebel-eltron.com

Controller menu: Settings

 DHW stop temperature - maximum mode

Parameter

Current operating mode

"SG Ready" is a trademark of the Bundesverband

Wärmepumpe e.V. (German Heat Pump Association)

and denotes a property of heat pumps whose control

technology enables them to be integrated into a smart

power grid (SG = Smart Grid).

Note

When the SG Ready function is being used, no other

power supply utility function (power-OFF) is available.

The two digital inputs allow four different operating modes.

Smart

grid 1

Smart

grid 2

Operating

mode

Description

0 0 Standard Standard operation

Comfort buff-

er cylinder

Increased start and stop tem-

perature for DHW heating.

The room temperature is

increased.

EVU

The function blocks compres-

sor operation and the internal

flanged immersion heater.

Other components continue

to be controlled.

Boost

Increased start and stop

temperature for DHW heat-

ing. The room temperature

is increased. When the DHW

temperature in the DHW

cylinder is 2°C below the

stop temperature for the

anti-legionella program, the

program will start.

Buffer cylin-

der

The required cylinder tem-

perature is set to 55°C. If the

"Allow booster heater during

maximum mode" function is

activated in the programming

unit, the internal flanged im-

mersion heater is used.

 Room temperature increase - accelerated mode

 Set by how much more the room will be heated in °C.

 Room temperature increase - maximum mode

 Set by how much more the room will be heated in °C.

 DHW start temperature - forced mode

 Set the temperature at which DHW heating starts.

 DHW stop temperature - forced mode

 Set the temperature at which DHW heating ends.

 DHW start temperature - maximum mode

 Set the temperature at which DHW heating starts.

 DHW stop temperature - maximum mode

 Set the temperature at which DHW heating ends.

 Cascade control

 Cascade control

 Slave = 0, Master = 1

 WPE-IHPremium heat pumps

 Number of secondary WPE-I H Premium

 Ext. controllable heat pumps

 Heat pump ID

 Port number

Parameter

Number of ext. controllable heat pumps

Number of heat pumps of a different series

Communication mode

Broadcast address

In this menu, specify which heat pumps are the primary heat pump

and the secondary heat pumps. The primary heat pump controls

the complete cascade. Some settings can be made on the second-

ary heat pumps. If there is communication between the primary

and secondary heat pumps, the heat pump ID is displayed on the

secondary heat pump screen.

 If you make changes in this menu, all the heat pumps must

be restarted.

 If the primary heat pump is not communicating with the

secondary heat pump, reinitialise the secondary heat pump.

Restart the secondary heat pump. Observe the chapter "Com-

missioning/ Commissioning cascades".

Possible causes for faulty communication can be found in chapter

"Commissioning/ Commissioning cascades/ Messages".

 Cascade control

 Activate or deactivate the function.

When the function is activated, multiple heat pumps can be in-

stalled in the heating system.

 Slave = 0, Master = 1

Can only be adjusted if the "Cascade control" function is activated.

 Input whether the heat pump is being set up as a primary

(master) or secondary (slave) heat pump.

 WPE-IHPremium heat pumps

Note

Use this menu item if further heat pumps of the same

series are installed in your heating system.

Can only be activated if the "Cascade control" function is switched

on and the heat pump is set up as a primary heat pump.

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STIEBEL ELTRON WPM G COMMISSIONING Operation Instruction

STIEBEL ELTRON WPM G COMMISSIONING Operation Instruction

STIEBEL ELTRON WPM G COMMISSIONING Operation Instruction

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