STIEBEL ELTRON WPL 13 basic Bedienungsanleitung

OPERATION AND INSTALLATION

Air source heat pump

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CONTENTS

SPECIAL INFORMATION

OPERATION

1. General information ��3

1.1 Further applicable 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 General safety instructions �� 4

2.3 Test symbols �� 4

3. Appliance description ��4

3.1 Function �� 5

4. Settings ��5

5. Maintenance and care ��5

6. Troubleshooting ��5

INSTALLATION

7. Safety��6

7.1 General safety instructions �� 6

7.2 Instructions, standards and regulations �� 6

8. Appliance description ��6

8.1 Standard delivery�� 6

8.2 Accessories�� 6

9. Preparations ��6

9.1 Acoustic emissions �� 6

9.2 Minimum clearances�� 7

9.3 Preparing the installation site�� 8

9.4 Electrical installation�� 10

9.5 Buffer cylinder �� 10

10. Mounting�� 10

10.1 Handling�� 10

10.2 Positioning �� 10

10.3 Heating water connection�� 11

10.4 Flow rate, heating side �� 12

10.5 Condensate drain �� 13

10.6 Checking the condensate drain �� 13

10.7 2. Heat source �� 14

10.8 Safety temperature controller for underﬂoor heating

system �� 14

11. Electrical connection�� 14

11.1 Fitting casing components�� 16

11.2 Routing air hoses �� 18

11.3 Fitting air hoses�� 19

11.4 Thermally insulating the wall outlets�� 19

12. Commissioning �� 20

12.1 Checks before commissioning�� 20

12.2 Commissioning�� 20

12.3 Settings �� 21

13. Taking the appliance out of use �� 22

13.1 Standby �� 22

13.2 Power interruption �� 22

14. Appliance handover�� 22

15. Troubleshooting �� 22

15.1 Elements on the IWS�� 22

15.2 Cleaning the condensate drain�� 23

15.3 Resetting the high limit safety cut-out �� 23

15.4 Fan noise �� 23

16. Maintenance �� 23

17. Speciﬁcation �� 24

17.1 Connections and dimensions, basic external

installation �� 24

17.2 Connections and dimensions, standard external

installation �� 24

17.3 Connections and dimensions, internal installation �� 25

17.4 Wiring diagram WPL basic standard appliance (3-

phase)�� 26

17.5 Wiring diagram WPL S basic (1-phase)�� 28

17.6 Output diagrams WPL 13 basic�� 30

17.7 Output diagrams WPL 20 basic�� 31

17.8 Output diagrams WPL 13 S basic �� 32

17.9 Output diagrams WPL 18 S basic �� 33

17.10 Data table ��34

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 up and persons with reduced physical, sen-

sory or mental capabilities or a lack of experi-

ence 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. Chil-

dren must never clean the appliance or perform

user maintenance unless they are supervised.

- Only use a permanent connection to the power

supply. The appliance must be able to be sepa-

rated from the power supply by an isolator that

disconnects all poles with at least 3mm contact

separation.

- Maintain the minimum clearances to ensure trou-

ble-free operation of the appliance and facilitate

maintenance work.

- Maintenance work, such as checking the electri-

cal safety, must only be carried out by a qualiﬁed

contractor.

- We recommend an annual inspection (to establish

the current condition of the system), and main-

tenance by a contractor if required (to return the

system to its original condition).

- The heat pump power supply must not be inter-

rupted, even outside the heating season. Other-

wise the system is at risk from frost.

- The heat pump manager automatically switches

the heat pump to summer or winter mode.

- If the heat pump and frost protection are com-

pletely 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 entitled “Installation” is intended for qualiﬁed con-

tractors.

Note

Read these instructions carefully before using the appli-

ance and retain them for future reference.

Pass on the instructions to a new user if required.

1.1 Further applicable documents

Operating and installation instructions of the heat pump

manager WPM

Operating and installation instructions of all other com-

ponents in the system

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-

serious or minor injury.

OPERATION

Safety

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1.3 Other symbols in this documentation

Note

Notes are bordered by horizontal lines above and below

the text. General information is identiﬁed by the symbol

shown on the left.

 Read these texts carefully.

Symbol

Damage to the appliance and environment

Appliance disposal

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

tions you need to take are described step by step.

1.4 Units of measurement

Note

All measurements are given in mm unless stated oth-

erwise.

1.5 Standardised output data

Explanations to determine and interpret the speciﬁed standardised

output data.

1.5.1 Standard: 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.

Generally, these standardised test conditions 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 conditions deﬁned in the norm

shown in the heading 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 ac-

cordance with the conditions deﬁned in the norm shown in the

heading of this section.

2. Safety

Only qualiﬁed contractors should carry out installation, commis-

sioning, maintenance and repair of the appliance.

Contractors are responsible for adherence to all currently applica-

ble regulations during installation and commissioning.

2.1 Intended use

The appliance is intended to heat buildings and domestic hot water

(DHW). The appliance is designed for extracting energy from the

air and utilising this energy in water-based heating systems within

the stated operating temperature range.

This appliance is designed for domestic use. It can be safely oper-

ated by untrained personnel. The appliance can also be used in a

non-domestic environment, e.g. in a small business, as long as it

is used in the same way.

Any other use beyond that described shall be deemed inappropri-

ate. Observation of these instructions is also part of the correct use

of this appliance. Any changes or modiﬁcations to this appliance

void all warranty rights.

2.2 General safety instructions

Observe the following safety instructions and regulations.

- The electrical installation and installation of the heating cir-

cuit must only be carried out by a recognised, qualiﬁed con-

tractor or by our customer service engineers

- Contractors are responsible for adherence to all currently ap-

plicable 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 aged 8 and up

and persons with reduced physical, sensory or mental

capabilities or a lack of experience provided that they

are supervised or they have been instructed on how to

use the appliance safely and have understood the result-

ing risks. Children must never play with the appliance.

Children must never clean the appliance or perform user

maintenance unless they are supervised.

2.3 Test symbols

See type plate on the appliance.

3. Appliance description

The appliance is an air source heat pump that operates as a heating

heatpump.Heat isextracted from theoutdoor air ata low temperature

level, and is then transferred to the heating water at a higher level.

The heating water can be heated up to a ﬂow temperature of 75 °C.

The appliance is equipped with an electric booster heater (DHC).

The electric booster heater is activated if the dual mode point is

not achieved in mono mode operation in order to ensure the heat-

ing operation and the availability of high DHW temperatures. In

such cases the electric booster heater is activated as an additional

heat source in mono energetic operation.

OPERATION

Settings

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Further operational characteristics:

- Suitable for underﬂoor and radiator heating systems

- Still extracts heat from the outdoor air at – 20 °C outside

temperature

- Corrosion-protected, external casing components made from

hot-dipped galvanised sheet steel plus powder-coated ﬁnish

- Comprises all components required for operation and all

safety equipment

- Filled with non-combustible safety refrigerant

Note

The heat pump manager is required for control over the

entire heating system.

3.1 Function

Heat is extracted from the outdoor air via the heat exchanger

(evaporator) on the air side. The now evaporated refrigerant is

compressed with one or two compressors. Electrical energy is

necessary for this process. Now, the refrigerant is at a higher

temperature level and transfers the heat drawn from the air via

an additional heat exchanger (condenser) to the heating system.

During this process, the refrigerant expands again, and the cycle

begins again.

At air temperatures below approx. +7 °C, the humidity in the air

condenses as hoarfrost on the evaporator ﬁns. This hoarfrost is

automatically defrosted. Water created from this defrosting col-

lects in the defrost pan and is drained off via a hose.

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.

The heat pump automatically reverts to heating mode at the end

of the defrost cycle.

4. Settings

The appliance is controlled by means of the WMP II heat pump

manager; no other control unit is required.

 Observe the heat pump manager operating and installation

instructions.

5. Maintenance and care

A damp cloth is sufﬁcient for cleaning all plastic and sheet steel

parts. Never use abrasive or corrosive cleaning agents.

Check the condensate drain monthly (visual inspection). Remove

contaminants and blockages immediately.

Damage to the appliance and environment

Keep the air discharge and intake apertures free from

snow and leaves.

We recommend an annual inspection (establishing the actual

state) and, if required, maintenance (returning the set state) by a

qualiﬁed contractor.

6. Troubleshooting

Fault Cause Remedy

There is no hot

water or the

heating system

stays cold.

There is no voltage at the

appliance.

Check the fuses/MCBs in your

fuse box/distribution panel.

If required, reset the MCBs. If

the MCBs trip again after being

reset, notify your contractor.

Water is leaking

from the appli-

ance.

The condensate drain

may be blocked.

Clean the condensate drain as

described in chapter ‚Care and

maintenance‘.

Indoor installa-

tion: Condensate

is collecting on

the outside of the

appliance or the

air hoses.

The drying out phase of

the building is not yet

complete.

If the room is sufficiently well

ventilated or dehumidified,

this condensate should no

longer form on the appliance ap-

prox.two years after the house

was built.

The humidity in the air is

relatively high (≥60%).

When the weather conditions

change, condensation should no

longer form on the appliance.

The appliance is located

in a moisture-prone

area. Moisture-prone

areas are rooms where

the humidity in the air is

high due to the drying of

laundry, for exam

ple.

Make sure that the room is

adequately ventilated and dehu-

midified. If necessary, hang your

laundry up in a different room.

Use a vented tumble dryer.

Please note that condenser

tumble dryers do not reduce the

humidity in the air.

The air hoses are incor-

rectly fitted or sealed.

Cold air escapes.

Check whether the air hoses are

correctly fitted and sealed. If

necessary, call your contractor.

Outdoor installa-

tion: Condensate

is collecting on

the outside of the

appliance.

The heat pump is

drawing heat from the

outdoor air to heat the

building. This can cause

the humidity in the out-

door air to accumulate

as dew or frost on the

cooled heat pump casing.

This is not a defect.

Note

Even when the condensate is draining away correctly,

expect water to drip from the appliance onto the ﬂoor.

If you cannot remedy the fault, notify your qualiﬁed contractor.

To facilitate and speed up your enquiry, please provide the serial

number from the type plate.

Sample type plate

Montageanweisung beachten! Dichtheit geprüft! Made in Germany

*xxxxxxxxxxxxxxxxxx*

26�03�01�1736

1 Number on the type plate

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INSTALLATION

Safety

INSTALLATION

7. Safety

7.1 General safety instructions

- Only qualiﬁed contractors should carry out installation, com-

missioning, maintenance and repair of the appliance.

- We guarantee trouble-free function and operational reliabil-

ity only if the 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.

8. Appliance description

For external installation the appliance offers additional frost pro-

tection of the heating water pipes. The integral frost protection

circuit starts the circulation pump in the heat pump circuit auto-

matically at +8 °C condenser temperature, and thereby ensures

circulation in all water-ﬁlled sections. The heat pump is started

automatically no later than when the temperature inside the buffer

cylinder drops below +5 °C.

Air hoses guide the intake air from the outside to the appliance and

route the discharge air from the appliance to the outside. These

are highly ﬂexible, thermally insulated and are self-extinguishing

in case of ﬁre in accordance with ASTMD1692-67T.

8.1 Standard delivery

8.1.1 Standard appliance

- Type plate

- Wiring diagram

8.1.2 Required accessories, external installation

The appliance casing components are supplied in a separate pack.

Description

Accessory for outdoor installation WPL .. Basic

Accessory for outdoor installation WPL 13/18/23 A

8.1.3 Required accessories, internal installation

The appliance casing components are supplied in a separate pack.

Description

Accessory for indoor installation WPL 13/18/23 I

WPIC

WPIC B

8.2 Accessories

8.2.1 Required accessories, internal and external installation

Description

Heat pump manager WPMS 3 or WPMW 3

Remote control for heating systems

Contact sensor

Immersion sensor

8.2.2 Additional required accessories for internal installation

Description

Thermally insulated air hose, 3m or 4m long

Hose connection plate

Wall outlet AWG 560

8.2.3 Further accessories

Description

Buffer cylinder

Pressure hose G 1¼ x 1 m (DN 32)

Pressure hose G 1¼ x 2 m (DN 32)

Pressure hose G 1¼ x 5 m (DN 32)

Pressure hose G 1¼ x 1 m (DN 32), can be trimmed

Hose fittings for pressure hose G 1¼ (DN 32)

Condensate pump

9. Preparations

9.1 Acoustic emissions

On the air intake and air discharge sides, the appliance is louder

than on the enclosed sides. Observe the following information

when selecting the installation location.

Note

For details regarding the sound power level, see chapter

"Speciﬁcation / Data table".

9.1.1 Sound emissions for external installation

- Lawn areas and shrubs contribute to the reduction of noise.

- Noise propagation can also be reduced through dense pali-

sades or similar.

 Ensure that the air intake direction is in line with the main

wind direction. Air should not be drawn in against the wind.

 Never direct the air intake or discharge towards noise-sensi-

tive rooms of the house, e.g. bedrooms.

 Avoid installation on large, echoing ﬂoor areas, e.g. tiled

ﬂoors.

 Avoid installation between reﬂective building walls. Reﬂec-

tive building walls can increase the sound level.

Note

Provide a recess (space) in the substrate to enable water

and electrical pipes/cables to be connected from below.

Also observe the chapter “Installation/Siting”.

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INSTALLATION

Preparations

9.1.2 Sound emissions for internal installation

Never install the appliance directly below or next to living rooms

or bedrooms.

Never install on joists.

 Isolate the installation surface. See chapter “Preparing the

installation site for internal installation”.

 Connect the heating ﬂow and return using ﬂexible pres-

sure hoses. Suitable pressure hoses can be found in chapter

“Accessories”.

 Insulate all pipe ﬁxings and wall outlets against structure-

borne noise transmission.

 Never direct the air intake and discharge apertures in exter-

nal walls towards neighbouring windows or living rooms/

bedrooms.

9.2 Minimum clearances

9.2.1 External installation

≥500 ≥500≥500 ≥1000

≥700

D0000019239

≥500 ≥1000

≥500

≥700

D0000019241

91�00�00�0036

 Do not 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.

 In order to prevent air “short circuits”, maintain the mini-

mum clearances in the case of surrounding structures and

in particular in the case of cascades. Maintain the ﬂow rate

on the heat source side (see chapter “Speciﬁcation / data

table“).

Damage to the appliance and environment

Please note that the outdoor air must be able to ﬂow

unimpeded into the appliance, and the exhaust air must

be able to be expelled without obstruction.

If the air intake and discharge of the appliance are ob-

structed by surrounding objects, this may cause a thermal

short-circuit.

 Ensure that the appliance is not surrounded by any objects

such as buildings, walls or fences.

 If necessary, maintain a greater clearance to the surrounding

objects.

Damage to the appliance and environment

The air ﬂow rate through the appliance must not fall

below the minimum level. If the air ﬂow rate falls below

the minimum level, trouble-free operation of the appli-

ance is not guaranteed.

 Ensure that the minimum air ﬂow rate is maintained. Ob-

serve the details in chapter “Speciﬁcation / Data table”.

 If necessary, maintain a greater clearance to the surrounding

objects.

If the air discharge side of the appliance faces a wall of the house,

condensate may form on this wall from the cool air at the air

discharge.

Note

If the air discharge side faces house walls, maintain a

minimum clearance of 2m between the appliance and

the building.

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INSTALLATION

Preparations

9.2.2 Internal installation

≥500

≥1000

D0000019242

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

eration of the appliance and facilitate maintenance work.

9.3 Preparing the installation site

9.3.1 General information

 Ensure that the appliance is accessible from all sides.

- The substrate must be horizontal, level, solid and permanent.

 Observe the minimum clearances in chapter “Preparations/

Minimum clearances”.

 Ensure the entire heat pump frame is in contact with the sub-

strate. Uneven substrates can increase sound emissions.

9.3.2 Preparing the installation site for external installation

 Observe chapter “Sound emissions for external installation”.

Example: Foundations with recess

1000

1440

190

170

300

150

D0000019240

1 Air intake

2 Air discharge

3 Main wind direction

4 Recess

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INSTALLATION

Preparations

Example: Routing pipes underground

D0000019238

A Frost level

1 Heating circuit ﬂow

2 Heating circuit return

3 Conduit for supply lines

4 Foundation

5 Gravel bed

6 Drainage pipe

7 Condensate hose

8 Electrical cables/leads

 Use only cables suitable for outdoor use.

 Protect the ﬂow and return pipes against frost with sufﬁcient

thermal insulation. Provide thermal insulation in accordance

with applicable regulations.

 Protect all supply lines against humidity, damage and UV ra-

diation by means of a conduit.

Note

When routing the condensate hose, observe the chapter

“Installation / condensate drain”.

9.3.3 Preparing the installation site for internal installation

 Observe chapter “Sound emissions for internal installation”.

 Isolate the mounting surface around the heat pump by re-

cesses. After completing the installation, seal these recesses

with a water-impervious and sound insulating material, such

as silicone for example.

1 2 3 54

26�03�01�1466

1 Concrete base

2 Impact sound insulation

3 Floating screed

4 Floor covering

5 Recess

In chapter “Speciﬁcation/Connections and dimensions, internal

installation”, the location and dimensions of the air intake and

discharge apertures as well as those of the outlets/entries for

water pipes and cables in the appliance cover can be seen.

Material losses

The ﬂoor of the installation room must be water resistant.

During appliance operation, the outdoor air releases up

to 50l of condensate per day. If the condensate drain is

not installed correctly or if maintenance is not carried out

properly, water may escape. We recommend installing a

drain in the ﬂoor of the installation room.

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INSTALLATION

Mounting

9.4 Electrical installation

DANGER Electrocution!

Carry out all electrical connection and installation work

in accordance with national and regional regulations.

DANGER Electrocution!

Only use a permanent connection to the power supply.

The appliance must be able to be separated from the

power supply by an isolator that disconnects all poles

with at least 3mm contact separation. This requirement

can be met by contactors, isolators, fuses etc.

Note

The speciﬁed voltage must match the mains voltage. Ob-

serve the type plate.

Route cables with the following cross-sections in accordance with

the respective fuse rating:

Fuse rating Cable cross-section

C 16 A

2.5 mm²

1.5 mm² with only two live cores and routing on a wall or in

an electrical conduit on a wall

C 25 A 6.0 mm² for routing through a wall

4.0 mm² for routing multi-core cables on a wall or in an

electrical conduit on a wall

C 35 A 6.0 mm² for routing multi-core cables on a wall or in an

electrical conduit on a wall

The electrical speciﬁcations are given in the “Data table”. The BUS

cable requires a cable J-Y (St) 2x2x0.8mm².

Note

Provide separate fuses/MCBs for the 3 power circuits of

the appliance, the control unit and the electric booster

heater.

9.5 Buffer cylinder

A buffer cylinder is recommended to ensure trouble-free appliance

operation. The buffer cylinder not only provides hydraulic separa-

tion of the volume ﬂow in the heat pump and heating circuit, but

also serves as an energy source for defrosting the evaporator.

10. Mounting

10.1 Handling

 Pay attention to the appliance’s centre of mass when trans-

porting the appliance.

The centre of mass is located in the compressor area.

- Lifting slings for transporting the standard appliance can be

hooked in anywhere on the lower frame.

 Protect the appliance against heavy impact during transport.

- Only allow the appliance to be tilted during transport for a

short time to one of its longitudinal sides.

The longer the appliance is tilted, the greater the distribution

of refrigerant oil in the system. Wait approx. 30 minutes be-

fore starting the appliance after it has been tilted.

10.2 Positioning

10.2.1 General information

 Undo the ﬁxing screws on the appliance frame and keep

them safe. Two or four screws are provided in the frame

to secure the cover. One screw respectively is provided to

secure the side panels (see also chapter “Fitting the casing

components”).

Note

Fit the casing components only after the electrical and

hydraulic connections have been made.

10.2.2 Internal installation

 Position the standard appliance on the prepared substrate.

26�03�01�1650�

1 Connector

2 Union nut

3 Pipe bend, heating circuit return

4 Condensate drain hose

 Undo the union nut from the heating ﬂow.

 Rotate the connector approx. 145°.

 Retighten the union nut.

 Fit the pipe bend for the heating circuit return (part of the

“Internal installation accessories”).

 Route the condensate hose out of the appliance, either on the

r.h. or the l.h. side.

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