STIEBEL ELTRON WPL 07 ACS classic, WPL 17 ACS classic, WPL 09 ACS classic Operation And Installation

OPERATION AND INSTALLAT ION

Air | water heat pump

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CONTENTS

SPECIAL INFORMATION

OPERATION

1. General information ��3

1.1 Other relevant documents �� 3

1.2 Safety instructions �� 3

1.3 Other symbols in this documentation �� 4

1.4 Units of measurement �� 4

1.5 Standardised output data �� 4

2. Safety �� 4

2.1 Intended use �� 4

2.2 Safety instructions �� 4

3. Appliance description ��5

3.1 Minimum software versions �� 5

3.2 Operational characteristics �� 5

3.3 Function �� 5

4. Settings �� 6

5. Maintenance and care ��6

6. Troubleshooting ��6

INSTALLATION

7. Safety �� 7

7.1 General safety instructions �� 7

7.2 Instructions, standards and regulations �� 7

8. Appliance description ��7

8.1 Standard delivery �� 7

8.2 Accessories �� 7

9. Preparations �� 7

9.1 Sound emissions �� 7

9.2 Minimum clearances �� 8

9.3 Preparation of the installation location �� 8

9.4 Installing the supply lines �� 10

9.5 WPM heat pump manager �� 10

9.6 Buffer cylinder �� 10

9.7 Preparing the electrical installation �� 11

10. Installation �� 11

10.1 Transport �� 11

10.2 Siting �� 11

10.3 Flow and return connection �� 12

10.4 Fitting the push-ﬁt connectors �� 12

10.5 Heating water connection �� 12

10.6 Oxygen diffusion �� 13

10.7 Filling the heating system �� 13

10.8 Minimum ﬂow rate �� 13

10.9 Setting the ﬂow rate on the heating side �� 13

10.10 External second heat source �� 14

10.11 High limit safety cut-out for underﬂoor heating systems �� 14

11. Electrical connection �� 15

11.1 Terminal area �� 15

12. Commissioning �� 16

12.1 Checks before commissioning�� 16

12.2 Operation with an external second heat source �� 16

12.3 Initial start-up �� 16

13. Shutdown �� 17

13.1 Standby mode �� 17

13.2 Power interruption �� 17

14. Maintenance �� 17

15. Troubleshooting �� 18

15.1 Checking the IWS DIP switch settings �� 18

15.2 LEDs (IWS) �� 19

15.3 Reset button �� 19

15.4 Fan noise �� 20

16. Speciﬁcation �� 21

16.1 Dimensions and connections �� 21

16.2 Wiring diagram �� 22

16.3 Connection diagram �� 24

16.4 Application limit �� 26

16.5 Output diagrams WPL 07 ACS classic �� 27

16.6 Output diagrams WPL 09 ACS classic �� 28

16.7 Output diagrams WPL 17 ACS classic ��29

16.8 Data table �� 30

GUARANTEE

ENVIRONMENT AND RECYCLING

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SPECIAL INFORMATION | OPERATION

General information

SPECIAL INFORMATION

- The appliance may be used by children aged8 and older and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.

- The connection to the power supply must be in the form of a permanent connection. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3mm contact separation.

- Maintain the minimum clearances to ensure trouble-free operation of the appliance and facilitate maintenance work.

- Maintenance work, such as checking the electrical safety, must only be carried out by a qualiﬁed contractor.

- We recommend an annual inspection (to establish the current condition of the system), and maintenance by a qualiﬁed contractor if required (to return the system to its original condition).

- Following disconnection from the power supply, parts of the appliance may remain energised for 2 minutes until the inverter capacitors have discharged.

- Never interrupt the heat pump power supply, even outside the heating season. Otherwise, system frost protection is not guaranteed.

- If the heat pump and frost protection are completely switched off, drain the system on the water side.

OPERATION

1. General information

The chapters "Special Information" and "Operation" are intended for both the user and qualiﬁed contractors.

The chapter "Installation" is intended for qualiﬁed contractors.

Note

Read these instructions carefully before using the appliance and retain them for future reference. Pass these instructions on to a new user if required.

1.1 Other relevant documents

 Operating and installation instructions for the WPM heat

pump manager

 Operating and installation instructions for connected

indoor unit

 Operating and installation instructions for mounting

bracket used

 Operating and installation instructions for system

components

 Commissioning checklist for heat pump

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.

OPERATION

Safety

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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 environmental pollution)

Appliance disposal

 This symbol indicates that you have to do something. The ac-

tion you need to take is described step by step.

1.4 Units of measurement

Note

All measurements are given in mm unless stated otherwise.

1.5 Standardised output data

Explanations to determine and interpret the speciﬁed standardised output data.

1.5.1 EN 14511

The output data speciﬁcally mentioned in text, diagrams and technical datasheets has been calculated according to the test conditions of the standard shown in the heading of this section. However, there is a deviation from this norm in the output data for air/water inverter heat pumps at source temperatures of > -7°C as this concerns partial load values. The associated percentage weighting in the partial load range can be found in EN14825 and EHPA quality label regulations.

Generally, the test conditions stated above will not fully meet the conditions found at the installation site of the system user.

Depending on the chosen test method and the extent to which this method deviates from the test conditions deﬁned in the ﬁrst paragraph of this section, any deviations can have a considerable impact.

Further factors that have an inﬂuence on the test values are the measuring equipment, the system conﬁguration, the age of the system and the ﬂow rates.

A conﬁrmation of the speciﬁed output data can only be obtained if the test conducted for this purpose is also performed in accordance with the test conditions deﬁned in the ﬁrst paragraph of this section.

2. Safety

2.1 Intended use

The appliance is designed for room heating and cooling within the application limits given in the speciﬁcation.

This appliance is intended for domestic use. It can be used safely by untrained persons. The appliance can also be used in non-domestic environments, e.g. in small businesses, as long as it is used in the same way.

Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any accessories used is also part of the correct use of this appliance.

2.2 Safety instructions

Observe the following safety instructions and regulations.

- Only qualiﬁed contractors may carry out the electrical work and installation of this appliance.

- The qualiﬁed contractor is responsible for adherence to all currently applicable regulations during installation and commissioning.

- Operate the appliance only when fully installed and with all safety equipment ﬁtted.

- Protect the appliance from dust and dirt ingress during building work.

WARNING Injury The appliance may be used by children over 8 years of age and persons with reduced physical, sensory or mental capabilities or a lack of experience and expertise, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the potential risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.

WARNING Injury

 For safety reasons, only operate the appliance with

the casing closed.

OPERATION

Appliance description

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3. Appliance description

3.1 Minimum software versions

The following minimum software versions are required for operating the heat pump:

- WPM: 390.09

- MFG: V.14

- FES: 417.05

3.2 Operational characteristics

The appliance is an air | water heat pump that operates as a heating heat pump for outdoor installation. Heat is extracted from the outdoor air at a low temperature level, and is then transferred to the heating water at a higher temperature. The heating water can be heated up to a ﬂow temperature of 60°C.

This appliance has further operational characteristics:

- Suitable for underﬂoor heating systems.

- Preferred for low temperature heating systems.

- Extracts heat from the outdoor air even at outside temperatures of -20°C.

- Corrosion-protected, external casing made from hot-dipped galvanised sheet steel plus stove-enamelled ﬁnish.

- Filled with non-combustible safety refrigerant.

Note

The appliance may only be used in conjunction with the following products:

- Hydraulic module HM(S) (Trend) (BE)

- Cylinder and hydraulic module HSBB200(S)classic(BE)

- Integral cylinder HSBC 200 (S) (BE)

3.3 Function

3.3.1 Heating

Heat is extracted from the outdoor air via the heat exchanger (evaporator) on the air side. The evaporated refrigerant is compressed by a compressor. This process requires electrical energy. At this point, the refrigerant is at a higher temperature level. A further heat exchanger (condenser) transfers the heat to the heating circuit. The refrigerant then expands again and the cycle restarts from the beginning.

At air temperatures below approx. 7°C, the humidity in the air condenses as hoarfrost on the evaporator ﬁns. Any hoarfrost is automatically defrosted. The resulting water ﬂows out of the appliance via the free condensate drain and seeps away into the gravel bed.

Material losses

In the defrost cycle, the fan is switched off and the heat pump circuit is reversed. The heat required for defrosting is drawn from the buffer cylinder. For operation without a buffer cylinder, observe chapter "Operation/ Menu structure/ Menu SETTINGS/ STANDARD SETTING/ BUFFER OPERATION" in the operating and installation instructions of the WPM. Otherwise the heating water freezes under unfavourable conditions.

Note

In winter, icicles can form on the bottom of the condensate drain. This does not interfere with the operation of the appliance, provided the condensate can drain off unimpeded.

The heat pump automatically reverts to heating mode at the end of the defrost cycle.

Material losses

In dual mode operation, return water from the second heat source may ﬂow through the heat pump. Please note that the return temperature must be no higher than 60°C.

3.3.2 Cooling

Material losses

The heat pump is not suitable for continuous, year-round cooling.

 Observe the application limits (see chapter "Speciﬁ-

cation/ Data table").

Note

The HM(S) (Trend) (BE) is equipped for both area and fan cooling. The HSBB 200 (S) classic (BE) and HSBC 200 (S) (BE) can provide area cooling.

Rooms are cooled by reversing the heat pump circuit. Heat is extracted from the heating water. The evaporator transfers this heat to the outdoor air.

Area cooling requires the installation of the FEK remote control unit in a reference room to capture the relative humidity and the room temperature as part of dew point monitoring.

Fan cooling requires the installation of the FE7 remote control unit in a reference room to capture the relative humidity and the room temperature as part of dew point monitoring. Similarly, it is necessary to install a buffer cylinder.

Heat pump application limit

The heat pump is switched off if the outside temperature falls below the selected lower application limit for cooling (LIMITCOOLING parameter).

OPERATION

Settings

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4. Settings

The system is operated exclusively with the WPM heat pump manager. The heat pump manager is installed in the products required as accessories (see chapter “Installation/ Appliance description/ Accessories”).

 Observe the heat pump manager operating and installation

instructions.

5. Maintenance and care

Material losses

Maintenance work, such as checking the electrical safety, may only be carried out by a qualiﬁed contractor.

A damp cloth is sufﬁcient for cleaning all plastic and sheet metal parts. Never use abrasive or corrosive cleaning agents.

 Protect the appliance from dust and dirt ingress during

building work.

Material losses

Keep the air discharge and intake apertures free from snow and leaves.

We recommend regular inspection (to establish the current condition of the system), and maintenance by a qualiﬁed contractor if required (to return the system to its original condition).

6. Troubleshooting

Fault Cause Remedy

There is no hot water or the heating system stays cold.

No power at the appliance.

Check the fuses/MCBs in your fuse box/distribution panel. Replace the fuses/reset the MCBs if required. Notify your qualified contractor if the fuses/MCBs blow/trip again.

Condensate collects on the outside of the appliance and on the air grille.

The heat pump is extracting heat from the outdoor air to heat the building. This can cause the humidity in the outdoor air to accumulate as dew or frost on the cooled heat pump casing. This is not a defect.

The fan runs when the compressor is switched off.

At outside temperatures below 10°C, the fan is regularly started at the lowest speed when the compressor is idle. This prevents the evaporator and fan from freezing or icing up due to water draining off. At temperatures above the freezing point, the time between two defrost cycles is increased, thereby improving overall efficiency.

The appliance produces rhythmic scraping or grinding noises.

Ice has formed on the air grille, on the fan blades or in the air routing.

Call your qualified contractor (see chapter “Installation/ Troubleshooting/ Fan noises”).

If you cannot remedy the fault, notify your qualiﬁed contractor. To facilitate and speed up your request, provide the number from the type plate. The type plate is located at the front top, on the right or left hand side of the casing.

Sample type plate

Montageanweisung beachten! Dichtheit geprüft!

Made in Germany

*xxxxxxxxxxxxxxxxxx*

26�03�01�1736

1 Number on the type plate

INSTALLATION

Safety

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INSTALLATION

7. Safety

Only a qualiﬁed contractor should carry out installation, commissioning, maintenance and repair of the appliance.

7.1 General safety instructions

We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.

7.2 Instructions, standards and regulations

Note

Observe all applicable national and regional regulations and instructions.

WPL07ACSclassic| WPL09ACSclassic

The tested appliance conforms to IEC 61000-3-3.

WPL17ACSclassic

The tested appliance conforms to IEC 61000-3-12.

8. Appliance description

The appliance offers frost protection for the connection lines. The integral frost protection circuit starts the circulation pump in the heat pump circuit automatically at a condenser temperature of 8°C, and thereby ensures circulation in all water-carrying sections. When the temperature in the buffer cylinder falls to below +5°C, the heat pump is automatically started subject to the outside temperature.

8.1 Standard delivery

The following are delivered with the appliance:

- Wiring diagram

8.2 Accessories

8.2.1 Required accessories

- T-support SK 2 or wall mounting support WK 1

With integral emergency/booster heater

- Hydraulic module HM(S) (Trend), cylinder and hydraulic module HSBB 200 (S) classic or integral cylinder HSBC 200 (S)

Without integral emergency/booster heater

- Hydraulic module HMSTrendBE, cylinder and hydraulic module HSBB200SclassicBE or integral cylinder HSBC200SBE

8.2.2 Further accessories

- Remote control for heating systems FEK

- Remote control for heating systems FE7

- High limit safety cut-out for underﬂoor heating systems STB-FB

9. Preparations

D0000060163

The appliance is designed for installation on a T-support or wall mounting support. Observe the minimum clearances. If the appliance is installed in an open space, protect the air intake side. Do this by erecting a wall to shield it against the wind. A gravel bed is an essential requirement for both installation versions.

9.1 Sound emissions

The appliance is louder on the air intake and air discharge sides than on the two enclosed sides. Observe the following information when selecting the installation location.

Note

For details regarding the sound power level, see chapter "Speciﬁcation / Data table".

- Lawn areas and shrubs help reduce the spread of noise.

- Sound propagation can also be reduced by installing closely spaced palisade fencing around the appliance.

 Ensure that the air intake direction is the same as the domi-

nant wind direction. Air should not be blown out against the wind.

 Ensure that the air intake and air discharge are never direct-

ed towards noise-sensitive rooms of the house, e.g. bedrooms, or neighbouring houses.

 Avoid installation between reﬂective building walls. Reﬂect-

ing building walls can increase the noise level.

INSTALLATION

Preparations

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9.2 Minimum clearances

≥2000

≥500

≥200 ≥300

≥1000

≥800

D000005758191�00�00�0036

 Never install the appliance in a recess. Two sides of the ap-

pliance must remain exposed.

 Maintain the minimum clearances to ensure trouble-free op-

eration of the appliance and facilitate maintenance work.

9.3 Preparation of the installation location

 Observe chapter "Sound emissions".  Ensure that the appliance is accessible from all sides.

9.3.1 Condensate drain

WARNING Injury At temperatures below freezing point, ice may form.

 Do not allow the gravel bed or surrounding area to

slope downwards towards paths.

Material losses

The foundations of the building must have a damp proof membrane.

Note

 Never use grit for the gravel bed.

Example: Gravel bed under T-support SK 2

>800

100

300

D0000063484

1 Drainage pipe

Heat pump a

WPL 07 ACS classic 700 WPL 09 ACS classic 700 WPL 17 ACS classic 830

 Lay a drainage pipe under the appliance to drain moisture

away from the building.

 Create a gravel bed below the condensate drain of the

appliance.

INSTALLATION

Preparations

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Example: Gravel bed under wall mounting support WK 1

>800

≥300

D0000065666

1 Drainage pipe

Heat pump a b

WPL 07 ACS classic 900 865 WPL 09 ACS classic 900 865 WPL 17 ACS classic 1000 995

 Lay a drainage pipe under the appliance to drain moisture

away from the building.

 Create a gravel bed below the condensate drain of the

appliance.

9.3.2 Siting

Example: T-support SK 2

150150

D0000063486

1 Air intake side 2 Air discharge side 3 Main wind direction

Heat pump A B

WPL 07 ACS classic 865 500 WPL 09 ACS classic 865 500 WPL 17 ACS classic 995 500

418

D0000065624

INSTALLATION

Preparations

10 | WPL ACS classic www.stiebel-eltron.com

Material losses

The T-support may bend if the heat pump is subject to any lateral load.

 Do not exert any pressure on the sides of the heat

pump.

 Observe the static limits of the T-support used.

Example: Wall mounting support WK 1

Note

To prevent disturbance due to structure-borne noise transmission, never install the wall mounting support on the external walls of living areas or bedrooms.

 Install the wall mounting support on a garage wall,

for example.

Note

Condensate drips from the appliance onto the ﬂoor.

 Observe the minimum clearance below the appli-

ance (see chapter "Preparations/ Minimum clearances").

≥200

D0000057582

1 Heating ﬂow 2 Heating return 3 Wall mounting support

 Observe the static limits of the wall mounting support used.

9.4 Installing the supply lines

The supply lines are all electric cables plus the heating ﬂow and return lines.

 Use only weatherproof cables, e.g. NYY.  Protect the ﬂow and return lines against frost with sufﬁcient

thermal insulation. Provide thermal insulation in accordance with applicable regulations.

 Also protect all supply lines/cables against humidity, damage

and UV radiation by means of a conduit.

 Protect all pipe ﬁxings and external wall ducts with anti-vi-

bration insulation.

9.5 WPM heat pump manager

A WPM heat pump manager is required to operate the appliance. This controls the entire heating system. The heat pump manager is installed in the products deﬁned as required accessories (see chapter "Installation/ Appliance description/ Accessories").

9.6 Buffer cylinder

Material losses

A buffer cylinder with diffusion-proof insulation is essential for fan cooling.

A buffer cylinder is recommended to ensure trouble-free appliance operation.

The buffer cylinder provides hydraulic separation of the volume ﬂows in the heat pump circuit and heating circuit, and also serves as an energy source for defrosting.

 When operating without a buffer cylinder, observe the details

speciﬁed in chapter "Minimum ﬂow rate with individual room control by means of FEK/ FE7 in systems without buffer cylinder".

Note

For operation without a buffer cylinder, we recommend installing an electric emergency/booster heater (DHC). An emergency/booster heater is installed in some of the products required as accessories (see chapter “Installation/ Appliance description/ Accessories”).

 If you do not install an emergency/booster heater,

for fault-free operation activate the WW LEARNING FUNCTION parameter in the WPM heat pump manager.

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STIEBEL ELTRON WPL 07 ACS classic, WPL 17 ACS classic, WPL 09 ACS classic Operation And Installation

Specifications and Main Features

Frequently Asked Questions

User Manual