Danfoss DHP-AX the indoor kit Installation guide

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EN - Installation instructions

About the instructions

Introduction1.

These instructions describe the installation of the indoor kit�

References to chapters and sections are in italics, e�g�: 1 About the instructions.

References to menu options in the heat pump’s control system are in upper case, e�g�: INFORMATION -> OPERAT� ->

AUTO�

All figures and tables in the instructions are numbered to help installers and service technicians refer to them easily�

Symbols2.

The instructions contain different warning symbols, which, together with text, indicate to the user that there are risks

involved with actions to be taken�

The symbols are displayed to the left of the text and four different symbols are used:

B

Hazardous electrical voltage! Indicates an immediate danger that leads to fatal or serious injury if necessary measures

are not taken�

A

Danger! Risk of personal injury! Indicates a possible danger that can lead to fatal or serious injury if necessary meas-

ures are not taken�

D

Risk of installation damage� Indicates a possible hazard that can lead to item damage if necessary measures are not taken�

E

Information regarding making the handling of the installation easier or a possible operational technical disadvantage�

Terminology3.

The instructions contain terms throughout that designate components and functions� The table lists the most common

terms that are used in the instructions�

TerminologyTable 1:

Term Meaning

Heating sys-

tem

The circuit that generates heat to the

property or to the water heater�

Supply pipe The heating system’s supply line with

flow direction to radiators/under floor

heating or water heater�

Return pipe The heating system’s return line with

flow direction from radiators/under

floor heating or water heater�

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Safety precautions

General safety precautions4.

D

The installation must be carried out by authorised installation engineers and the installation must follow the applicable

local rules and regulations as well as these installation instructions�

D

This apparatus is not intended for persons (including children) with reduced physical, sensory or psychological capacity,

or who do not have knowledge or experience, unless supervised or they have received instructions on how the apparatus

functions from a safety qualified person�

A

Danger! Risk of personal injury! Children are not permitted to play with the apparatus�

D

The unit must be located on a stable base� The base must be able to support the gross weight�

D

To prevent leaks ensure that there are no stresses in the connecting pipes!

D

It is important that the heating system is bled after installation�

D

Bleed valves must be installed where necessary�

D

Radiator systems with closed expansion tanks must also be supplied with approved pressure gauges and safety valves�

D

Cold and hot water pipes and overflow pipes from safety valves must be made of heat resistant and corrosion-resistant

material, e�g� copper� The safety valve overflow pipes must have an open connection to the drain and visibly flow into this

in a frost-free environment�

D

The connecting pipe between the expansion tank and the safety valve must slope continuously upwards� A continuous

upwards slope means that the pipe must not slope downwards from the horizontal at any point�

Scrapping5.

D

Scrapping must be carried out in accordance with applicable local rules and regulations�

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Installation instructions

Description6.

The indoor kit is an accessory /system solution for customers who wish to connect an electric heating element�

The most necessary components are included with the indoor kit� The required pipes and electrical wiring must be connected at the installation

site by authorised installers�

Installation description7.

The pipes and the components for the electric heating element are connected to the existing radiator system� The supply water from the heat

pump is forced forward by the circulation pump in the insulated reservoir for the electric heating element� The electric heating element heats the

radiator water and forwards it to the exchange valve, which routes the water to the house heating system or to the water heater for domestic hot

water�

The electric heating element, circulation pump and the exchange valve are controlled by the heat pump's control centre�

1

2

3

4

5

13

12

10

9

8

7

6

11

14

Connecting the indoor kitFigure 1.

Image description

Cable to circulation pump1

Cable to electric heating element2

Cable to exchange valve3

Terminal block4

Control centre5

To heating system6

To water heater7

Exchange valve8

Safety valve9

Electric heating element10

Junction box electric heating element11

Circulation pump12

Supply line from heat pump13

Control unit for the electric heating element (only for 230V 1N~, 50Hz)14

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Indoor kit8.

There are two different indoor kits, one for 400V 3N~, 50Hz and one for 230V 1N~, 50Hz

Indoor kitTable 2:

Part no. Quantity Name

086U8671 1 Indoor kit 400V 3N~, 50Hz

086U8860 1 Indoor kit 230V 1N~, 50Hz

Indoor kit contents 400V 3N~, 50Hz Table 3:

Pos. Part no. Quantity Name Illustration

1 086U7999 1 Exchange valve

2 086U8504 1 Electric heating element with

junction box

3 086U8888 1 Circulation pump

Installation contents 230V 1N~, 50Hz Table 4:

Pos. Part no. Quantity Name Illustration

1 086U7999 1 Exchange valve

2 086U8668 1 Electric heating element with

junction box

3 086U8888 1 Circulation pump

4 086U8850 1 Control unit for electric heating

element

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Installation9.

Pipe connection9.1

At installation, follow the safety instructions in the heat pump’s installation instructions�

Connect the components on to the supply line; see figure 1 and the heat pump’s installation instructions�

Also read the supplier’s instructions�

Install and connect the circulation pump1�

Install and connect the electric heating element to the junction box2�

Connect the safety valve3�

Install and connect the exchange valve4�

Electrical connection9.2

Also see the supplied wiring diagram as well as the heat pump’s wiring diagram�

Electric connection 400V 3N~, 50Hz9.2.1

Connect fused (3 x 16 A) power to the electric heating element marked N, L1, L2, L3 and 1� �

Route a cable bridge from the electric heating element’s connection marked 1 to the electric heating element’s connection marked 3�2�

D

The cable bridge must be made on the connection for controlling the electric heating element�

1

23

Electric heating element connectionFigure 2.

Connect the communication cable from the electric heating element marked 1 and 2 to the control centre terminal block marked 290 and 3�

291�

Connect cables from the circulation pump connection marked L and N to the control centre terminal block marked 213 and N2�4�

Connect cables from the exchange valve’s connection marked 2, 6 and 3 to the control centre terminal block 214, 217 and N2�5�

Electrical connection 230V 1N~, 50Hz9.2.2

E

Power to the electric heating element must be connected from the control unit for the electric heating element!

Install the control unit for the electric heating element�1�

Connected fused (20 A) power to the control unit for the electric heating element marked N, L and PE�2�

L

N

F1

290 291

PE

K1

2 4

1 3

Connecting the control unit for the electric heating elementFigure 3.

Connect the power cable from the control unit for the electric heating element marked 2, 4 and PE to the electric heating element marked 3�

L1, N and �

Connect cables from the control unit for the electric heating element marked 290 and 291 to the control centre’s terminal block marked 290 4�

and 291

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Connect cables from the circulation pump connection marked L and N to the control centre terminal block marked 213 and N2�5�

Connect cables from the exchange valve’s connection marked 2, 6 and 3 to the control centre terminal block 214, 217 and N2�6�

Fill with water9.3

Fill the system with water according to the heat pump’s installation instructions�

Bleeding9.4

Bleed the system according to the heat pump’s installation instructions�

Start up10.

Set the components controls according to the supplier’s instructions�1�

The indoor kit is controlled from the heat pump menu system, see the heat pump’s service instructions�2�

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Circuit diagram, Control box for Indoor kitFigure 1.

Appendix (available in english only)

Circuit diagram Control box for Indoor kit

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Danfoss DHP-AX the indoor kit Installation guide

Danfoss DHP-AX the indoor kit Installation guide

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