Danfoss DHP-A,C,H,L Installation Guide


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Danfoss DHP-A,C,H,L Installation Guide | Manualzz

Installation and Service instructions

DHP-H, DHP-C, DHP-L,

DHP-A

VMBMA102

VMBMA102

9

9.1

9.2

9.3

9.4

10

10.1

8

8.1

8.2

8.3

8.4

8.5

7

7.1

7.2

7.3

7.4

7.5

7.6

6

6.1

6.2

6.3

6.4

6.5

6.6

6.7

6.8

5

5.1

5.6

5.7

5.8

5.9

5.2

5.3

5.4

5.5

2

2.1

2.6

2.7

2.8

2.9

2.2

2.3

2.4

2.5

1

1.1

1.2

1.3

3

4

4.1

4.2

4.3

4.4

4.5

Contents

Installation instructions ................ 5

Important information/Safety regulations . . . . . . . . . . . . . . . . . . . . . 5

Refrigerant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Heat pump information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DHP-H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

DHP-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

DHP-L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Heat pump control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Space requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Recommended location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Space requirement around outdoor unit, DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Recommended location of outdoor unit, DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Drilling holes for brine pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Unpacking and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Setting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Removing the front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Unpacking and installing outdoor unit DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Installing the stand on outdoor unit DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Installing the defroster sensor, DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Piping installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Connection diagram, DHP-H, DHP-C, DHP-A system VL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connection diagram, DHP-H, DHP-C, DHP-A system D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Connection diagram, DHP-L system VL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Connection diagram, DHP-L system D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Safety valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Connecting cold and hot water pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Connecting the heating system supply and return pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Filling the water heater and heating system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Bleeding the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Connecting the power supply, three phase 400V AC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting the power supply, single phase 230V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting the outdoor sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing the language in the control computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Changing the number of auxiliary heating power stages . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Connecting the outdoor unit, DHP-A 6 and DHP-A 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Connecting the outdoor unit, DHP-A 10 and DHP-A 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Connecting the defroster sensor, DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Brine installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Connection diagram, DHP-H, DHP-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Connection diagram, DHP-L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Connection diagram, DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Installing brine pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Filling the brine system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Bleeding the brine circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Installing accessories/additional functions . . . . . . . . . . . . . . . . . . . .25

Room temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

EVU function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Tariff control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Flow switch/level switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Higher hot water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Installation checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Manual test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Installing the front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

After start up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Installation and commissioning carried out by: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Service instructions ................... 28

13

13.1

13.2

14

14.1

14.2

14.3

14.4

11

11.1

11.2

11.3

11.4

11.5

11.6

11.7

12

12.1

12.2

The heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Principles of function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Auxiliary heating, DHP-H, DHP-L, DHP-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Auxiliary heating, DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Water heater, DHP-H, DHP-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Water heater, DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Important parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Control computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Function description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Main menu INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Main menu SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Starting heat production, DHP-H, DHP-C, DHP-L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Stopping heat production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Starting hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Stopping hot water production. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

15

15.1

15.2

15.3

15.4

15.5

15.6

15.7

15.8

16

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Alarm list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Measurement points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Operational problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Alarm problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Heating comfort problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Hot water problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Leakage problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Noise problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

VMBMA102

VMBMA102

Installation instructions

1 Important information/Safety regulations

⚠ The heat pump must be installed by authorised installation engineers and the installation must follow the applicable local rules and regulations as well as these installation instructions. v The heat pump must be placed in an area with a floor drain.

⚠ The heat pump must be located on a stable base. The base must be able to support the gross weight of the heat pump when filled. (see Technical Specification)

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

NOTE! It is important that the heating system is completely bled after installation .

NOTE! Bleed valves must be installed where necessary .

• Installation must be carried out in accordance with applicable local rules and regulations. The hot water tank must be equipped with an approved safety valve (supplied).

• Radiator systems with a closed expansion tank must also be equipped with an approved pressure gauge and safety valve, minimum DN 20, for a maximum 3 bar opening pressure, or according to country specific requirements.

• 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.

• 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.

• If there is any risk of groundwater infiltration at brine pipe leadins, watertight grommets must be used, for more information see

Section 4.

• In addition to applicable local rules and regulations the installation should be carried out in a manner that prevents vibrations from the heat pump being transmitted into the house causing noise.

vapour can collect below the level of the air must therefore be well ventilated.

Refrigerant exposed to a naked flame creates a poisonous irritating gas. This gas can be detected by its odour even at concentrations below its permitted levels. Evacuate the area until it has been sufficiently ventilated.

Anyone with symptoms of poisoning from the vapour must immediately move or be moved into the fresh air.

Work on the refrigerant circuit

When repairing the refrigerant circuit, the refrigerant must not be released from the heat pump – it must be destroyed at a special plant. Draining and refilling must only be carried out using new refrigerant (for the amount of refrigerant see manufacturer’s plate) through the service valves. All warranties from Danfoss AS are void if, when filling with refrigerant other than Danfoss recommended refrigerant, it has not been notified in writing that the new refrigerant is an approved replacement refrigerant together with other remedies.

Scrapping

When the heat pump is to be scrapped the refrigerant must be extracted for destruction. Local rules and regulations related to the disposal of refrigerant must be followed.

1 .2

Electrical installation may only be carried out by an authorized electrician and must follow applicable local and national regulations.

Electrical connection

The electrical installation must be carried out using permanently routed cables. It must be possible to isolate the power supply using an all-pole circuit breaker with a minimum contact gap of 3 mm. (The maximum load for externally connected units is 2A).

Electrical current! The terminal blocks are live and can be highly dangerous due to the risk of electric shock. The power supply must be isolated before electrical installation is started. The heat pump is connected internally at the factory, for this reason electrical installation consists mainly of the connection of the power supply.

NOTE! The room temperature sensor is connected to a safety extra-low voltage .

Follow the separate installation instructions for the room temperature sensor!

1 .1 Refrigerant

⚠ Work on the refrigerant circuit must only be carried out by a certified engineer!

Although the heat pump cooling system (refrigerant circuit) is filled with a chlorine-free and environmentally-approved refrigerant that will not affect the ozone layer, work on this system may only be carried out by authorized persons.

1 .3 Commissioning

The installation may only be commissioned if the heating system, water heater and brine system have been filled and bled.

Otherwise the circulation pumps can be damaged.

If the installation is only to be run on auxiliary heating, first ensure that the heating system is filled and that neither the brine pump nor the compressor can be started. This is carried out by setting the operating mode to ADD.HEAT.

Fire risk

The refrigerant is not combustible or explosive in normal conditions.

Toxicity

In normal use and normal conditions the refrigerant has low toxicity. However, although the toxicity of the refrigerant is low, it can cause injury (or be highly dangerous) in abnormal circumstances or where deliberately abused. Refrigerant vapour is heavier than air and, in enclosed spaces below the level of a door for example, and in the event of leakage, concentrations can arise with a resultant risk of suffocation due to a lack of oxygen. Spaces in which heavy

VMBMA102

2 Heat pump information

2 .1 DHP-H

Delivery check

1. Check that there is no transport damage. The heat pump is packaged in cardboard.

2. Remove the plastic wrapping and check that the delivery contains the following components.

DHP-H, sizes 4kW - 10kW:

Part no .

Quantity

9680-5796A00 1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-47054005 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-55453A00 1

9360-52488001 1

9360-51738005 2

9360-51738008 4

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 3 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 25

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

DHP-H, sizes 12kW - 16kW:

Part no .

9680-5796A00

Quantity

1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-47054005 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-56911A00 1

9360-52488001 1

9360-51738005 4

9360-51738008 2

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 3 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 32

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

Dimensions and connections

The brine pipes can be connected on either the left or right-hand sides of the heat pump.

1

455

596

40±10

80

3 4 5

300

440

6

7 56

6

7

8

9

2

74 327

Figure 1: DHP-H, Dimensions and connections .

Position Name

1

2

3

4

5

6

7

8

9

Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Hot water pipe, 22 Cu or stainless steel

Cold water pipe, 22 Cu or stainless steel

Expansion pipe, 22 Cu

Brine supply pipe (Brine out), 28 Cu

Brine return pipe (Brine in), 28 Cu

Lead-in for incoming power supply and sensors

Lead-in for communication cable

7

6

VMBMA102

Components

1

4

5

6

2

3

7

8

9

10

11

12

13

Left view Front view

Figure 2: DHP-H, components .

6

7

8

9

10

11

12

13

14

15

16

17

18

19

Position Name

1

2

3

4

5

Water heater, 180 litres

Return pipe sensor, heating system

Evaporator, insulated

Exchange valve

Supply pipe sensor

Heating system circulation pump

Auxiliary heating, immersion heater

Brine return pipe (Brine in)

Heating system supply pipe

Brine supply pipe (Brine out)

Brine system pump

Drying filter

Expansion valve

Hot water temperature sensor (displays maximum temperature)

Control panel for control equipment

Electrical panel

Compressor

Pressure switches

Condenser with primary side drain

14

15

16

17

18

Right view

19

VMBMA102

2 .2 DHP-C

Delivery check

1. Check that there is no transport damage. The heat pump is packaged in cardboard.

2. Remove the plastic wrapping and check that the delivery contains the following components.

DHP-C, sizes 4kW - 10kW:

Part no .

9680-5796A00

Quantity

1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-47054005 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-55453A00 1

9360-52488001 1

9360-51738005 2

9360-51738008 4

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 3 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 25

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

Dimensions and connections

The brine pipes can be connected on either the left or right-hand sides of the heat pump.

1

455

596

40±10

80

3 4 5

300

440

6

7 56

6

7

8

9

2

74 327

Figure 3: DHP-C, Dimensions and connections .

Position Name

1

2

3

4

5

6

7

8

9

Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Hot water pipe, 22 Cu or stainless steel

Cold water pipe, 22 Cu or stainless steel

Expansion pipe, 22 Cu

Brine supply pipe (Brine out), 28 Cu

Brine return pipe (Brine in), 28 Cu

Lead-in for incoming power supply and sensors

Lead-in for communication cable

7

6

VMBMA102

Components

1

7

8

9

2

3

4

5

6

10

11

12

13

14

15

16

Left view Front view

Figure 4: DHP-C, components .

14

15

16

17

18

19

20

21

22

6

7

8

9

10

11

12

13

Position Name

1

2

3

4

5

Water heater, 180 litres

Return pipe sensor, heating system

Evaporator, insulated

Heat exchanger for cooling operation

Exchange valve cooling

Shunt cooling

Exchange valve, heating/hot water

Supply pipe sensor

Heating system circulation pump

Auxiliary heating, immersion heater

Brine return pipe (Brine in)

Heating system supply pipe

Brine supply pipe (Brine out)

Brine system pump

Expansion valve

Drying filter

Hot water temperature sensor (displays maximum temperature)

Control panel for control equipment

Electrical panel

Compressor

Pressure switches

Condenser with primary side drain

17

18

19

20

21

Right view

5

6

22

VMBMA102

2 .3 DHP-L

Delivery check

1. Check that there is no transport damage. The heat pump is packaged in cardboard.

2. Remove the plastic wrapping and check that the delivery contains the following components.

DHP-L, sizes 4kW - 10kW:

Part no .

9680-5796A00

Quantity

1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-47054005 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-55453A00 1

9360-52488001 1

9360-51738005 2

9360-51738008 4

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 3 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 25

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

DHP-L, sizes 12kW - 16kW:

Part no .

Quantity

9680-5796A00 1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-47054005 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-56911A00 1

9360-52488001 1

9360-51738005 4

9360-51738008 2

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 3 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 32

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

Dimensions and connections

The brine pipes can be connected on either the left or right-hand sides of the heat pump.

5

6

455

596

40±10

1 2

378

138

218

298

310

110

3 4

5

6

7

8

6

5

Figure 5: DHP-L, Dimensions and connections .

Position Name

1

2

3

4

5

6

7

8

Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Alternative for brine supply

Alternative for brine return

Brine supply pipe (Brine out), 28 Cu

Brine return pipe (Brine in), 28 Cu

Lead-in for incoming power supply and sensors

Lead-in for communication cable

10

VMBMA102

Components

1

2

3

4

Left view

Figure 6: DHP-L, components .

6

7

8

9

10

11

12

13

14

15

16

Position Name

1

2

3

4

5

Auxiliary heating, immersion heater

Return pipe, heating system

Exchange valve

Evaporator, insulated

Heating system circulation pump

Supply pipe sensor, heating system

Brine supply pipe (Brine out)

Brine system pump

Drying filter

Expansion valve

Control panel for control equipment

Brine return pipe (Brine in)

Electrical panel

Compressor

Pressure switches

Condenser with primary side drain

5

6

7

8

9

10

Front view

11

12

7

13

14

15

Right view

16

VMBMA102

11

2 .4 DHP-A

Delivery check

1. Check that there is no transport damage. The heat pump is packaged in cardboard.

2. Remove the plastic wrapping and check that the delivery contains the following components.

DHP-A, sizes 6kW - 10kW:

Part no .

9680-5796A00

Quantity

1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-56335001 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-55453A00 1

9360-52488001 1

9360-51738005 2

9360-51738008 4

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 1.5 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 25

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

DHP-A, size 12kW:

Part no .

Quantity

9680-5796A00 1

9674-57902001 1

9360-47054001 1

9588-51618001 1

9360-56335001 1

9674-24735001 1

9551-54479001 1

9360-51759007 1

9674-54168001 1

3311-55300001 1

9684-48342001 2

9674-54164001 1

5211-50730A00 2

9360-56911A00 1

9360-52488001 1

9360-51738005 4

9360-51738008 2

Name

Document kit

Transparent book case

Safety valve 9 bar 1/2”

Kimsafe outdoor sensor 200 035

Safety valve 1.5 bar 1/2”

Expansion and bleed tank without valve

Cardboard packaged top for HP

Compression angle joint 28x28 joint

Pipe insulation IT 9x28

Brine in Cu pipe in TWS packaging

Rubber bellows for 22-32mm hole

Pipe insulation F-54-A D=54x9mm

Flexible hose R25 L=600

Filling kit DN 32

Dirt filter with shut-off DN25

Straight connection LK 303 28xR25

Straight compression connection 22 xR20

The outdoor unit is supplied as a package containing:

• Outdoor unit

• Disassembled stand

• Necessary screws, nuts and washers.

• Defroster sensor

12

Dimensions and connections

The brine pipes can be connected on either the left or right-hand sides of the heat pump.

1

455

596

40±10

250

80

3 4 5 10

440

7

6

6

7 56

6

7

8

9

2

74 327

Figure 7: DHP-A, Dimensions and connections .

Position Name

1

2

3

4

5

6

7

8

9

10

Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW

Hot water pipe, 22 Cu or stainless steel

Cold water pipe, 22 Cu or stainless steel

Expansion pipe, 22 Cu

Brine supply pipe (Brine out), 28 Cu

Brine return pipe (Brine in), 28 Cu

Lead-in for incoming power supply and sensors

Lead-in for communication cable

Expansion outlet brine circuit, R25 int.

2 1

1

2

1175

Figure 8: Outdoor unit, Dimensions and connections .

Position Name

1

2

Brine in (HP Brine out) 28 Cu

Brine out (HP Brine in) 28 Cu

VMBMA102

Components

1

5

6

7

14

15

8

16

2

3

4

9

10

11

12

13

17

18

19

Left view Front view

Figure 9: DHP-A, components .

14

15

16

17

18

19

20

21

6

7

8

9

10

11

12

13

Position Name

1

2

3

4

5

Water heater, 180 litres

Defrosting tank

Evaporator, insulated

Exchange valve, defrosting

Exchange valve, heating system

Supply pipe sensor

Heating system circulation pump

Auxiliary heating, immersion heater

Brine system pump

Brine return pipe (Brine in)

Drying filter

Expansion valve

Brine supply pipe (Brine out)

Hot water temperature sensor (displays maximum temperature)

Control panel for control equipment

Electrical panel

Heating system supply pipe

Compressor

Pressure switches

Condenser with primary side drain

Return pipe sensor, heating system

1

2

Right view

3

4

5

6

Figure 10: DHP-A outdoor unit, components and connections

Position Name

1

2

3

4

5

6

Outdoor unit

Stand

Cover

Connection, brine in

Connection, brine out

Connection, defrosting outlet

20

21

VMBMA102

1

2 .5 Heat pump control panel

The heat pump control panel consists of a display, four control buttons and an indicator.

ROOM 20°C

NO DEMAND HEAT

OPERAT. AUTO

The symbols in the display are only examples. Certain symbols cannot be displayed at the same time.

2 .6 Space requirement

To facilitate the installation and subsequent testing and maintenance it is recommended that there is sufficient free space around the heat pump in accordance with the following dimensions:

– 300 mm on each side

– 300 mm above

– 600 mm in front

– 10 mm behind

Figure 11: Display, control buttons and indicator for the heat pump .

The control computer is controlled using a user-friendly menu system, displayed in the display.

Use the four control buttons to navigate the menus and increase or reduce the set values:

• An up button with a plus sign

• A down button with a minus sign

• A right button with a right arrow

• A left button with a left arrow

The main menu, INFORMATION, is opened by pressing the left or right buttons. From INFORMATION one of the four sub-menus can be opened: OPERAT.; HEATCURVE; TEMPERATURE and OPERAT. TIME.

For installation or service, a hidden service menu, SERVICE, is used.

This is opened by holding the left and right buttons depressed for three seconds. From the SERVICE menu one of the following sub-menus can be opened: WARMWATER; HEATPUMP; ADD.HEAT;

MANUAL TEST and INSTALLATION.

For further information about the menus see the service instructions.

The indicator at the bottom of the control panel has two modes:

• Lit steadily, the installation has power and is ready to produce heat or hot water

• Flashing, means an active alarm

Figure 12: Necessary service space .

DHP-H

DHP-C

DHP-A

DHP-L

Figure 13: Minimum headroom for heat pump installation .

2 .7 Recommended location

⚠ To avoid condensation problems for the brine pipes, as short a brine pipe as possible is recommended.

The heat pump should be located on a stable floor, preferably made of concrete. When locating the heat pump on a wooden floor this should be reinforced to take the weight. One solution is to place a thick metal plate, at least 6mm, under the heat pump. The metal plate should cover several joists spreading the weight of the heat pump over a larger area. If the heat pump is being installed in a newly-built house, this has normally been taken into account during construction, and the joists where the heat pump will be located have been reinforced. Always check that this has been carried out when installing into a newly-built house. Avoid positioning the heat pump in a corner as the surrounding walls may amplify its noise. It is also important to adjust the heat pump using the adjustable feet so that it is horizontal to the base.

14

VMBMA102

2 .8 Space requirement around outdoor unit, DHP-A

• To ensure the function of the outdoor unit, there must be at least

300 mm of space behind and 1500 mm at the front.

• For maintenance work there must be approximately 300 mm of space at the sides of the outdoor unit.

300 mm

300 mm

300 mm

1500 mm

Figure 14: Necessary service space for outdoor unit .

2 .9 Recommended location of outdoor unit,

DHP-A

When positioning the outdoor unit, note the following:

The outdoor unit does not have to be positioned in any specific direction.

Noise is produced from the outdoor unit when the fan is in operation, remember this when positioning to reduce disturbance in your own home as well as to any neighbours.

When the outdoor unit is defrosting, water will drip straight down under the unit. The area around the outdoor unit must therefore be properly drained in order to catch the water

(approximately 2 litres per defrost).

Remember that the outdoor unit must have a certain amount of room in order to function and for servicing, see “Heat pump information” chapter.

Remember that the water that drips from the outdoor unit during defrost must be able to drain into the ground. The outdoor unit must therefore not be positioned on asphalt or slabs where water cannot drain easily.

The outdoor unit’s adjustable stand must be positioned on a secure base such as wooden sleepers, paving slabs or cast footings.

VMBMA102

1

3 Drilling holes for brine pipes

⚠ NOTE! Ensure that the holes for the insert pipes are positioned so that there is room for the other installations.

⚠ NOTE! The brine pipes shall have separate lead-ins.

The brine pipes must be insulated from the heat pump, through the walls and outside the house all the way to the collector so as to avoid condensation and prevent heat loss.

If the brine pipes are to be routed above ground, drill holes in the walls for them.

If the brine pipes are to be routed below ground see the instructions below.

4 Unpacking and installation

4 .1 Setting up

• The heat pump has feet that can be adjusted 20 mm to compensate for irregularities in the surface on which it is sitting. If the surface is so irregular that the feet cannot compensate for it, the installation engineer must remedy this.

• It is recommended that a condensation drain be installed from the drain pipe of the drip tray while the heat pump is on its side.

The drain pipe opens through a hole in the base plate and has a

Ø 10 mm hose connection.

1. Move the heat pump to the installation site.

2. Remove the packaging.

Figure 16: Condensation drain connection

3. Install a condensation drain if required.

Figure 15: Drilling holes for brine pipes .

Position Name

1

2

3

4

Insert pipe

Brine pipe

Mortar

Sealant

1. Drill holes in the wall for the insert pipes (1) for the brine pipes.

Follow the dimension and connection diagrams in Section 2

Technical Data. If there is any risk of groundwater infiltration at brine pipe lead-ins, watertight grommets must be used.

2. Position the insert pipes (1) in the holes sloping downwards.

The inclination must be at least 1cm every 30cm. Cut them at an angle (as illustrated) so that rain water cannot get into the pipes.

3. Insert the brine pipes (2) into the insert pipes in the installation room.

4. Fill in the holes in the wall with mortar (3).

5. Ensure that the brine pipes (2) are centred in the insert pipes (1) so that the insulation is distributed equally on all sides.

6. Seal the insert pipes (1) with a suitable sealant (foam) (4).

Figure 17: Adjusting the heat pump .

4. Set up the heat pump in the installation site.

5. Adjust the feet (1) so that it is standing horizontal.

1

VMBMA102

4 .2 Removing the front cover

⚠ NOTE! Do not damage the electrical wiring for the control system when the front cover is removed!

To install the heat pump the front cover must be removed.

Figure 18: Removing the front cover .

Figure 20: Installing the outdoor unit on the stand .

3 There are two pre-drilled holes in the bottom plate of the outdoor unit where the stand is screwed into place with 2 screws per side.

4 Hook the cover onto the stand.

1 Unscrew the screws (3).

3 Slide the front cover (2) upwards and carefully lift it off upwards and forwards.

4 Place the front cover next to the heat pump.

4 .3 Unpacking and installing outdoor unit

DHP-A

The outdoor unit is packed and delivered in a wooden crate.

1 Start by unpacking the unit from the wooden crate.

2 Check that the delivery is complete, it must contain the outdoor unit as well as a package containing the disassembled stand including necessary screws, nuts and washers.

NOTE! Remember that the water that drips from the outdoor unit during defrost must be able to drain into the ground. The outdoor unit must therefore not be positioned on asphalt or slabs where water cannot drain easily. If this is not possible, connect a hose to the defrosting outlet and route it away from the outdoor unit.

4 .5 Installing the defroster sensor, DHP-A

Install the defroster sensor on the reverse of the outdoor unit.

4 .4 Installing the stand on outdoor unit DHP-A

Figure 19: Stand for outdoor unit DHP-A .

1

2

2

3

1 Screw the two horizontal struts together (1) using the two ends

(2). The curved edge of the horizontal struts must be facing upwards. Screws and washers for installation are supplied.

2 Press the adjustable feet into the holes under the ends.

VMBMA102

1

5 Piping installation

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

⚠ NOTE! It is important that the heating system is completely bled after installation.

⚠ NOTE! Bleed valves must be installed where necessary.

• Ensure that the piping installation follows the dimension and connection diagrams in Section 2 Heat pump information.

• Piping installation must be carried out in accordance with applicable local rules and regulations. The hot water tank must be equipped with an approved safety valve (supplied).

5 .2 Connection diagram,

DHP-H, DHP-C, DHP-A system D

16

17

18

3

19

2

1

4

5 .1 Connection diagram,

DHP-H, DHP-C, DHP-A system VL

2

1

3

4

5

13

7

6

8 9 10

11 12

14

RUM 20C

INGET BEHOV VÄRME

DRIFT AUTO

7

6

RUM 20C

INGET BEHOV VÄRME

DRIFT AUTO

15

5

8 9 10

11 12

13

14

15

Figure 21: General connection diagram heating system for DHP-H, DHP-C, DHP-A, system VL .

10

11

12

13

6

7

8

9

14

15

Position Name

1

2

3

4

5

Supply pipe

Return pipe

Safety valve (9 bar)

Safety valve (not included)

Expansion

Strainer

Flexible hoses

Vacuum valve

Non-return valve

Shut-off valve

Non-return valve

Shut-off valve

Hot water

Cold water

Heat pump

Figure 22: General connection diagram heating system for DHP-H, DHP-C, DHP-A, system D .

14

15

16

17

18

19

10

11

12

13

6

7

8

9

Position Name

1

2

3

4

5

Supply pipe

Return pipe

Safety valve (9 bar)

Safety valve (not included)

Expansion

Strainer

Flexible hoses

Vacuum valve

Non-return valve

Shut-off valve

Non-return valve

Shut-off valve

Hot water

Cold water

Heat pump

External auxiliary heater

Circulation pump

Non-return valve

Moved supply pipe sensor

1

VMBMA102

5 .3 Connection diagram, DHP-L system VL

7

INGET BEHOV VÄRME

DRIFT AUTO

13

6

5

4

3

14

1

2

8 9 10

11

12

5 .4 Connection diagram, DHP-L system D

16 18

15

17

2

1

3

6

4

5

8 9 10

11

12

7

RUM 20C

DRIFT AUTO

13 14

7 7

Figure 23: General connection diagram heating system for DHP-L, system VL .

10

11

12

13

14

6

7

8

9

Position Name

1

2

3

4

5

Supply pipe

Return pipe

Safety valve (9 bar)

Safety valve (not included)

Expansion

Strainer

Flexible hoses

Vacuum valve

Non-return valve

Shut-off valve

Cold water

Hot water

Heat pump

Water heater

Figure 24: General connection diagram D heating system .

10

11

12

13

6

7

8

9

14

15

16

17

18

Position Name

1

2

3

4

5

Supply pipe

Return pipe

Safety valve (9 bar)

Safety valve (not included)

Expansion

Strainer

Flexible hoses

Vacuum valve

Non-return valve

Shut-off valve

Cold water

Hot water

Heat pump

Water heater

External auxiliary heater

Circulation pump

Non-return valve

Moved supply pipe sensor

VMBMA102

1

5 .5 Safety valves

• Radiator systems with a closed expansion tank must also be equipped with an approved pressure gauge and safety valve, minimum DN 20, for a maximum 3 bar opening pressure, or according to country specific requirements.

• Cold and hot water pipes as well as 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.

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.

5 .6 Connecting cold and hot water pipes

1. Connect the cold water and hot water pipes with all the necessary components.

5 .7 Connecting the heating system supply and return pipes

All pipes should be routed in such a way that vibrations cannot be transmitted from the heat pump through the piping and out into the building. This also applies to the expansion pipe. To avoid the transmission of vibrations, we recommend that flexible hoses are used for the supply pipe and return pipe on both the heating system and brine system sides. Flexible hoses can be purchased from

Thermia Värme AB. Figures 12-15 show how appropriate and inappropriate installations look using this type of hose.

To avoid noise caused by pipe mounting, rubber-coated clamps should be used to prevent the transmission of vibrations. However, installation should not be too rigid and the clamps must not be too tight.

Figure 27: Cut the hose to the correct length to avoid excess bowing-out or stretching and offset the ends so that the hose is not installed completely straight .

Figure 28: Use fixed pipe bends to avoid excess stress on bends next to connections .

1. Connect the supply pipe with a flexible hose connection and with all the necessary components.

2. Connect the return pipe with a flexible hose connection and with all the necessary components including a filter.

3. Insulate the supply and return pipes.

4. Connect the expansion tank to the expansion outlet (22mm Cu) on the top of the heat pump.

Figure 25: Do not twist the flexible hoses as they are installed . At threaded connections, use a counterhold spanner .

5 .8 Filling the water heater and heating system

1. Fill the water heater with cold water by opening the filler valve

(10) which is located on the valve pipe.

2. Bleed by opening one of the hot water taps.

3. Then fill the water heater coil and the heating system with water through the filling valve (12) to a pressure of approx.. 1 bar.

5 .9 Bleeding the heating system

1. Open all radiator valves fully.

2. Bleed all radiators.

3. Refill the heating system to a pressure of approximately 1 bar.

4. Repeat the procedure until all air has been removed.

5. Leave the radiator valves fully open.

Figure 26: Cut the hose to the correct length to avoid excess bowing-out or stretching at bends .

20

VMBMA102

6 Electrical Installation

⚠ Electrical current! The terminal blocks are live and can be highly dangerous due to the risk of electric shock. The power supply must be isolated before electrical installation is started. The heat pump is connected internally at the factory, for this reason electrical installation consists mainly of the connection of the power supply.

• Electrical installation may only be carried out by an authorized electrician and must follow applicable local and national regulations.

• The electrical installation must be carried out using permanently routed cables. It must be possible to isolate the power supply using an all-pole circuit breaker with a minimum contact gap of 3 mm. (The maximum load for externally connected units is 2A).

• Electrical connection can also cause noise so this installation must be carried out appropriately. The figure below shows an appropriate installation. There is approximately 300mm free cable between the heat pump and building, however, this requires the cable to be securely installed onto the top panel so that the cable cannot be fed into the heat pump. It is inappropriate to bolt trunking between the heat pump and the wall. This is because vibrations can then be transmitted from the heat pump through the trunking to the walls of the house.

6 .1 Connecting the power supply, three phase 400V AC

⚠ NOTE! The power cable may only be connected to the terminal block intended for this purpose. No other terminal blocks may be used!

Figure 31: Incoming cable to heat pump with circuit breaker .

⚠ NOTE! Supplied with the jumpers shown in the figure.

1. Route the power cable through the opening in the top panel of the heat pump to the terminal blocks.

2. Connect the power cable to the terminal block.

6 .2 Connecting the power supply, single phase 230V AC

⚠ NOTE! The power cable may only be connected to the terminal block intended for this purpose. No other terminal blocks may be used!

Incoming 230V heat pump

Figure 29: Recommended distance between trunking on the wall and trunking on

1 2 3 4

Incoming 230V external auxiliary heater

5

6

7

8

9

Figure 32: Incoming cable to heat pump .

1. Route the power cable through the opening in the top panel of the heat pump to the terminal blocks.

2. Connect the power cable to the terminal block.

6 .3 Connecting the outdoor sensor

⚠ NOTE! The outdoor sensor is connected with extra low protec-

10 11 12 the heat pump is 300mm .

Figure 30: The location of the components on the electrical panel .

6

7

8

9

10

11

12

Position Name

1

2

3

4

5

Terminal block (applies to the expansion card)

Terminal block (applies to DHP-A)

Defroster card (applies to DHP-A)

Terminal block

Space for Thermia/Danfoss Online

Warning decal

Space for expansion card

Contactor for compressor

Automatic fuses

Resetting overheating protection

Control computer

Soft starter card tion voltage. Follow the specific installation instructions for the outdoor sensor!

Figure 33: Connecting the outdoor sensor .

• Position the outdoor sensor on the north or north west side of the house.

VMBMA102

21

• To measure the outdoor temperature as accurately as possible, the sensor must be positioned 2/3 of the way up the facade on houses up to three storeys high. For higher buildings, the sensor should be positioned between the second and third storeys. Its location must not be completely protected from the wind but not in a direct draft. The outdoor sensor should not be placed on reflective panel walls.

• The sensor must be positioned at least 1 m from openings in the walls that emit hot air.

• If the sensor cable is connected through a pipe, the pipe must be sealed so that the sensor is not affected by outgoing air.

Then connect the sensor to the heat pump control system in accordance with the instructions below.

1. Route the outdoor sensor connection cable through the cable bushing in the top panel to the terminal block.

2. Connect the sensor to the terminal blocks according to the connection diagram.

6 .4 Changing the language in the control computer

If necessary, change the language in the control computer menus.

1. Ensure that the main circuit breaker is on.

2. Open the SERVICE menu by pressing and for three seconds.

3. Change language in the control computer menu SERVICE ->

INSTALLATION -> ENGLISH, select language and .

6 .5 Changing the number of auxiliary heating power stages

⚠ NOTE! Setting the maximum permitted number of power stages for the auxiliary heating must be carried out.

1. Ensure that the main circuit breaker is on.

2. Open the SERVICE menu by pressing and for three seconds.

3. Change the number of auxiliary heating power stages in the control computer menu SERVICE -> ADD.HEAT -> MAXSTEP, select the number of stages and .

6 .6 Connecting the outdoor unit, DHP-A 6 and DHP-A 8

⚠ NOTE! The power cable may only be connected to the terminal block intended for this purpose. No other terminal blocks may be used!

For correct connection between the heat pump and the outdoor unit, 6 connections must be made, see also separate sheet with electrical connections.

6 .7 Connecting the outdoor unit, DHP-A 10 and DHP-A 12

⚠ NOTE! The power cable may only be connected to the terminal block intended for this purpose. No other terminal blocks may be used!

For correct connection between the heat pump and the outdoor unit, 6 connections must be made, see also separate sheet with electrical connections.

Ground

0V

Phase high speed (925 rpm)

Phase low speed (575 rpm)

Motor protection fan

Figure 35: Connecting the outdoor unit .

1. Route the power cable through the opening in the top panel of the heat pump to the terminal blocks.

2. Connect the power cable to the terminal block.

6 .8 Connecting the defroster sensor, DHP-A

Figure 36: Connecting the defroster sensor .

Position the defroster sensor on the reverse of the outdoor unit.

1. Route the defroster sensor connection cable through the cable bushing in the top panel to the terminal block.

2. Connect the sensor to the terminal blocks according to the connection diagram.

Ground

0V

Phase high speed (575 rpm)

Phase low speed (340 rpm)

Motor protection fan

Figure 34: Connecting the outdoor unit .

1. Route the power cable through the opening in the top panel of the heat pump to the terminal blocks.

2. Connect the power cable to the terminal block.

22

VMBMA102

7 Brine installation

7 .1 Connection diagram, DHP-H, DHP-C

INGET BEHOV VÄRME

DRIFT AUTO

7 .3 Connection diagram, DHP-A

If the outdoor unit is installed higher than the heat pump the expansion outlet must be used together with a pressure tank.

If the outdoor unit is installed at the same level or lower than the heat pump, the accompanying plastic vessel can be used.

The upper part of the outdoor unit must then not exceed the fluid level in the vessel.

RUM 20C

INGET BEHOV VÄRME

DRIFT AUTO

Figure 37: General connection diagram, brine pipes DHP-H, DHP-C .

Position Name

1

6

7

8

9

10

2

3

4

5

Return pipe, brine

Supply pipe, brine

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Strainer (part of the filling kit)

Shut-off valve (part of the filling kit)

Safety valve (3 bar)

Bleed and expansion tank

Shut-off valve

7 .2 Connection diagram, DHP-L

Figure 39: General connection diagram brine pipes, DHP-A .

Position Name

1

6

7

8

9

10

11

2

3

4

5

Return pipe, brine

Supply pipe, brine

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Strainer (part of the filling kit)

Shut-off valve (part of the filling kit)

Safety valve (1.5 bar)

Bleed and expansion tank

Shut-off valve

Pressure tank

RUM 20C

INGET BEHOV VÄRME

DRIFT AUTO

Figure 38: General connection diagram brine pipes, DHP-L .

Position Name

1

6

7

8

9

10

2

3

4

5

Return pipe, brine

Supply pipe, brine

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Strainer (part of the filling kit)

Shut-off valve (part of the filling kit)

Safety valve (3 bar)

Bleed and expansion tank

Shut-off valve

Figure 40: Connection diagram, DHP-A outdoor unit

Position Name

1

2

3

Brine in

Brine out

Flexible hoses

7 .4 Installing brine pipes

1. Determine to which side the brine pipes are to be connected.

2. Route the return pipe through the return pipe rubber bellows on the side of the heat pump.

3. Install the return pipe with all the accompanying components.

Remember to install the filling kit with the filter cover upwards.

4. Route the supply pipe out through the supply pipe rubber bellows on the side of the heat pump.

5. Install the supply pipe with all the accompanying components.

6. Install the expansion tank with the safety valve.

7. Fit both brine pipes with anti-diffusion insulation running all the way from the heat pump to the lead-in in the wall. The brine pipes running outside the house to the collector can be buried, however they must be well insulated.

⚠ Applies to DHP-A: Bear in mind that the outdoor unit may move during defrosts, use flexible hoses to connect the pipes from the heat pump and pipes on the outdoor unit.

VMBMA102

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7 .5

Filling the brine system

NOTE! Before filling the brine system, the electrical installation must be completed so that it is possible to operate the brine pump.

NOTE! Always check local rules and regulations before using anti-freeze.

NOTE! Use anti-freeze with corrosion protection additives, mixed to achieve frost protection down to -15°C.

NOTE! Use only ethylene glycol anti-freeze for DHP-A, mixed to achieve frost protection down to -32°C.

Calculated volume, DHP-H, DHP-C, DHP-L

The volume of the brine system is calculated as follows:

• Heat pump (exchanger and piping) approximately 2 litres

• Expansion tank approximately 3 litres

• Collector (single pipe): PEM 40 approximately 1.0 litre/m; PEM 32 approximately 0.6 litre/m; Cu 28 approximately 0.5 litre/m

Calculated volume, DHP-A

The volume of the brine system is calculated as follows:

• Heat pump (exchanger, pipe and outer jacket) approximately 47 litres

• Expansion tank approximately 3 litres

• Outdoor unit approximately 7 litres

• Collector (single pipe): 28 mm pipe approx. 0.5 litre/m

Filling kit

When the filling kit is installed on the return pipe, remember to turn

3

4 6 7

5

5

6

7

8

1

2

3

4

9

10

11

12

Return pipe, brine

Supply pipe, brine

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Shut-off valve (part of the filling kit)

Strainer (part of the filling kit)

Shut-off valve (part of the filling kit)

Safety valve (3 bar) (1.5 bar for DHP-A)

Bleed and expansion tank

Shut-off valve

External pump

External container

1. Set the heat pump operating mode to “OFF” in the control computer menu INFORMATION -> OPERAT.

2. Mix water and anti-freeze in the correct proportions in an external container (12). Note that each pack must be well mixed.

3. Check that the freezing point of the mixture is reached using a refractometer (-15°C for DHP-H, DHP-C, DHP-L)(-32°C for DHP-A).

4. Fill the system with the mixture using an external pump (11) which can bleed the brine pipes. Connect the pressure side of the pump to the filler connection at valve (5).

5. Close valve (4).

5. Open valves (5) and (10).

6. Open valve (3) and connect a transparent hose that opens out into the external container (12).

7. Start the external pump (11) and fill the brine pipes.

8. Start the brine pump manually in the control computer menu

SERVICE -> MANUAL TEST -> BRINEPUMP, set the value to 1.

9. Run the brine pump and the external pump (11) in series until fluid, clear of air, comes out of the return hose from the shut-off valve (3).

10. Stop the brine pump in the control computer menu SERVICE

-> MANUAL TEST -> BRINEPUMP, set the value to 0, at the same time leave the external pump running.

11. Open valve (4) with the external pump running to eliminate the air between the valves (3) and (5).

12. Close valve (3) and pressurise the system using the external pump. NOTE! Max . 150kPa (1 .5bar) .

13. Close valve (5).

14. Stop the external pump (11) and disconnect the filling equipment.

15. Install insulation on the filling kit.

the strainer cover upwards in order to minimise the amount of air that gets into the brine system when cleaning the filter.

Figure 41: Filling kit .

Position Name

3

4

5

Shut-off valve

Shut-off valve

Shut-off valve

6

7

Strainer

Shut-off valve

Figure 42: Filling the brine system

Position Name

RUM 20C

DRIFT AUTO

7 .6 Bleeding the brine circuit

⚠ NOTE! When topping up, the brine pump must be running.

1. Start the brine pump in the control computer menu SERVICE ->

MANUAL TEST -> BRINEPUMP, set the value to 1.

2. Check that the level in the bleed tank (9) is stabilised.

3. Dismantle the safety valve (8) on the bleed tank.

4. Top up with brine to 2/3 of the tank through the connection on which the safety valve (8) was installed.

5. Leave the brine pump running so that that the air in the system collects in the bleed tank.

6. As air separates in the bleed tank the fluid level drops, top up as in step 4.

7. Reinstall the valve (8) when all air has been removed from the system.

8. Open valve (8) and release any overpressure. The fluid level should not fall below 2/3 of the height of the tank.

9. Check that valve (3) is closed.

10. Stop the brine pump in the control computer menu SERVICE ->

MANUAL TEST -> BRINEPUMP, set the value to 0.

11. Switch to the desired operating mode if the heating system has been filled and bled.

Collect any excess brine in a plastic container for topping up the system if necessary (leave it with the customer).

24

VMBMA102

8 Installing accessories/additional functions

8 .1 Room temperature sensor

⚠ NOTE! The room temperature sensor is connected to a safety extra-low voltage. Follow the specific installation instructions for the room temperature sensor with regard to positioning.

Figure 47: Connection diagram for the flow switch or level switch .

• Connect the flow switch or level switch to terminal blocks 217 and 219.

Figure 43: Connecting the room temperature sensor .

• Connect the room temperature sensor to terminal blocks 303 and

304

8 .5 Higher hot water temperature

⚠ NOTE! Never connect the heat pump to provide a higher temperature unless the heating or hot water systems require it.

Higher temperatures increase the load on the heat pump.

If necessary, the heat pump can be connected to produce hotter water for the heating system and hot water system when it is installed.

A B

8 .2 EVU function

The EVU function (electricity supply utility signal) prevents the operation of HEATPUMP, ADD.HEAT and CIRC.PUMP as long as the contact is closed. The text EVU STOP is shown in the display when this function is active.

Figure 44: Connection diagram for the EVU function .

• The EVU function is activated by making a connection between terminal blocks 307 and 308 using an external 1-pin timer.

8 .3 Tariff control

The room temperature lowering function provides a regular, temporary lowering of the indoor temperature.

10 kohm

Figure 48: The pressure switches are installed on the compressor’s pressure pipe .

1. Move the grey cables, which are normally connected to pressure switch A, to pressure switch B.

Figure 45: Connection diagram for the tariff control function .

• The tariff control is activated by making a connection between terminal blocks 307 and 308 using an external 1-pin timer and a

10 kohm resistor.

• The extent to which the temperature is lowered is set in the menu INFORMATION -> Heatcurve -> REDUCTION.

8 .4 Flow switch/level switch

In certain countries there is a requirement that the heat pump must be equipped with a level switch for the brine system. Always check local rules and regulations before commissioning the heat pump.

1

2

3

Figure 46: Level switch in the expansion tank/bleed tank .

VMBMA102

2

9 Start up

NOTE! Read the safety instructions!

⚠ The installation may only be commissioned if the heating system, water heater and brine system have been filled and bled.

Otherwise the circulation pumps may be damaged.

⚠ If the installation is only to be run on auxiliary heating, first ensure that the heating system is filled and bled and that neither the brine pump nor the compressor can be started. This is carried out by setting the operating mode to ADD.HEAT.

9 .1 Installation checklist

Before manual test operation check the following points:

Test the brine pump

5. Start the brine system pump by setting the value BRINEPUMP to 1.

6. Check that the brine pump is running by:

• listening

• putting a hand on the pump

• checking that the level in the expansion tank is stable. If the level is not stable there is air in the system.

• listen for air

7. If the pump does not start see the Section Auxiliary Start of

Circulation Pumps.

8. If there is air in the brine system, bleed according to section 7.4

.

9. Stop the brine pump by setting the value back to 0.

Piping installation, heating system

• Pipe connections in accordance with the connection diagram

• Flexible hoses on the supply and return pipes

• Pipe insulation

• Strainer on return pipe, heating system

• Bleeding of the heating system

• All radiator valves fully open

• Expansion tank, heating system

• Safety valve for cold water

• Safety valve for expansion tank

• Filling kit, heating system

• Leakage inspection

Test the circulation pump

10. Start the heating system circulation pump by setting the value

CIRC.PUMP to 1.

11. Check that the circulation pump is running by:

• listening

• putting a hand on the pump

• listen for air

12. If the pump does not start see the Section Auxiliary Start of

Circulation Pumps.

13. If there is air in the heating system, bleed according to Section

5.7.

14. Stop the circulation pump by setting the value back to 0.

Electrical Installation

• Circuit-breaker

• Fuse protection

• Direction of rotation of the compressor

• Positioning of the outdoor sensor

• Control computer language

• At DHP-A, also outdoor unit

Test the exchange valve

15. Activate the 3-way valve by setting the value VXV WARMWATER to 1.

16. Check that the arm on the 3-way valve changes position.

17. If the arm does not change position, see the fault-tracing section in the service instructions.

Test the compressor

18. Start the circulation pump by setting the value CIRC.PUMP to 1

19. Start the heat pump compressor by setting the value

HEATPUMP to 1. At the same time as the value is set to 1 for

HEATPUMP the brine pump starts.

Brine system

• Expansion/bleed tank on the return pipe

• Safety valve for expansion tank

• Filling kit on the return pipe

• Insulation in the outside wall lead-in

• Other brine pipe insulation

• Bleeding of brine system

• Leakage inspection

9 .2 Manual test

Test operate and at the same time check the function of the tested components.

Activate MANUAL TEST

1. Ensure that the main circuit breaker is on.

2. Select operating mode , in the menu INFORMATION ->

OPERAT.->

3. Open the SERVICE menu by pressing and for three seconds.

4. Set the value for MANUAL TEST to 2.

NOTE! Select position 2 to navigate away from the MANUAL

TEST menu during ongoing test operation!

Figure 49: The pressure pipe should get hot during operation .

20. Check that:

• the compressor is running in the right direction by putting a hand on the pressure pipe and checking that it is hot. NOTE! Risk of burns, the pipe can reach 70-80°C!

.

• it sounds normal and there is no noise.

21. If the pipe does not get hot, or if it sounds abnormal, see the fault-tracing section in the service instructions.

22. Stop the compressor by setting the value back to 0.

23. Stop the brine pump by setting the value back to 0.

24. Stop the circulation pump by setting the value back to 0.

2

VMBMA102

Testing the auxiliary heating power stages

25. Start the first auxiliary heating power stage by setting the value

ADD.HEAT 3 to 1.

26. Check that the auxiliary heating power stage works by leaving the menu MANUAL TEST and going into the menu

INFORMATION -> TEMPERATURE -> WARMWATER and check that the temperature rises.

27. Return to the menu MANUAL TEST and stop ADD.HEAT 3 by setting the value back to 0.

28. Repeat steps 25 to 27 for ADD.HEAT 6.

Select operating mode

Set the heat pump to the desired operating mode in the menu

INFORMATION -> OPERAT. If necessary, set certain parameters in the control computer, such as ROOM and CURVE.

9 .3 Installing the front cover

⚠ NOTE! Take care not to damage the front cover!

1. Align the upper section of the front cover with both the side channels at the top of the unit and slide it carefully downwards until it covers the entire front of the unit.

2. Tighten the screws.

Test fuse protection

29. Start the compressor by setting the value HEATPUMP to 1.

30. At the same time, start the auxiliary heating power stages available to check that the fuse protection can withstand full power operation.

9 .4 After start up

⚠ NOTE! Remember that it takes time for the heat pump to heat a cold house. It is best to let the heat pump work at its own pace and NOT raise any values in the control computer to try to heat it up more rapidly.

Test the outdoor unit for DHP-A

31. Start the defroster shunt by setting the value SHUNT DEFR to 1.

32. Start the fan at low speed by setting the FAN L value to 1.

33. Check that the fan runs at low speed.

34. Start the fan at high speed by setting the FAN H value to 1.

35. Check that the fan runs at high speed.

10 Handover

10 .1 Installation and commissioning carried out by:

Exit test operation

34. Set the value for MANUAL TEST to 0.

PIPE INSTALLATION

Auxiliary start of circulation pumps

If any of the circulation pumps do not start, it may need to be helped as follows:

Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tel . No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 50: Bleed screw location .

1. Open and remove the bleed screw on the front of the pump.

Normally a small amount of water comes out when it is removed.

2. Insert a flat blade screwdriver and turn it in the direction of rotation of the pump (clockwise).

3. Reinstall the bleed screw with its rubber seal.

Adaptation to the heating system

Adjust the heat pump settings to the applicable heating system, for instance an underfloor heating or radiator system. The delta temperature must be at least 8°C above the heat pump. The delta temperature should be 3-5°C for the brine system. (The flow rate of the circulation pumps may need to be adjusted depending on the applicable heating system)

Noise check

During transportation and installation there is a certain risk that the heat pump can be damaged, components may move or get bent and this can cause noise. Because of this it is important to check the heat pump when it has been installed and is ready to be commissioned to ensure that everything seems in order. The heat pump should be run in both heating and hot water modes to ensure that there is no abnormal noise. While doing this, check that there is no abnormal noise in other parts of the house.

Noise is produced from the outdoor unit when the fan is in operation, check during that manual operation that there is no disturbance in your own home as well as to any neighbours.

ELECTRICAL INSTALLATION

Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tel . No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

POST-ADJUSTMENT OF THE SYSTEM

Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tel . No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VMBMA102

2

Service instructions

11 The heat pump

11 .1 Principles of function

A heat pump utilises the energy found in a natural heat source. Simply put, it obtains energy in the form of heat from a heat source. The heat pump is, therefore, a very environmentally friendly and economical way of heating a house.

The heat pump has three separate fluid circuits

• Heat transfer fluid circuit – is the circuit that contains the water that transports the heat/energy to the heating system and the water heater.

• Refrigerant circuit – is the circuit that contains a chlorine and freon free refrigerant that inside the heat pump, transfers the energy retrieved from the brine circuit through evaporation, compression and condensation, and supplies it to the heat transfer fluid circuit.

• Brine circuit – is the circuit that contains an antifreeze water based mix that obtains and transports energy from the heat source to the heat pump. This circuit is also known as the collector.

Condenser Heat transfer fluid circuit

Expansion valve/ pressure drop

Enclosed refrigerant

Evaporator

Brine

Compressor/ pressure increasing

Refrigerant circuit

Brine circuit

Figure 51: Function principles of a heat pump .

1 A fluid (brine) filled hose is lowered into a lake, buried in the ground or lowered into bedrock. The brine obtains energy from the heat source by the fluid temperature in the hose being heated a few degrees by the surrounding heat source. The fluid filled hose is also known as a collector.

2 The brine is guided into the heat pump’s evaporator. The enclosed refrigerant in the refrigerant circuit is forced to boil as the pressure in the expansion valve drops and later evaporates to a gas in the evaporator. The energy produced during this process is released by the slightly heated brine.

3 The refrigerant that now contains a large quantity of energy in the form of heat is transferred to the compressor, which both increases its temperature and pressure.

4 The refrigerant then continues to the condenser. When condensing, the refrigerant supplies its heat energy to the heat transfer fluid circuit. The refrigerant’s temperature decreases and returns to a liquid state.

5 The heat transfer fluid circuit transports the heat energy out to the water heater, radiator and the under floor heating system, which heat up.

6 The refrigerant is then transported through the expansion valve where the pressure drops and the refrigerant starts to boil and then the process starts again.

11 .2 Components

The heat pump is a complete heat pump installation for heating and hot water. It has the market’s first compressor developed solely for heat pumps. It has an integrated 180 litre water heater and auxiliary heating. TWS stands for Tap Water Stratificator. This technology results in more effective heat transfer and more effective layering of the water in the water heater.

The heat pump is equipped with control equipment, which is controlled via a control panel.

Heat enters the house via a water borne heating system, a low temperature system. The heat pump supplies as much of the heat demand as possible before auxiliary heating is engaged and assists.

The heat pump unit consists of five basic units:

1 Heat pump unit

• Scroll compressor

• Stainless steel heat exchanger

2 VMBMA102

• Circulation pumps for brine and heating systems

• Valves and safety equipment for cooling systems and corresponding electrical components.

2 Water heater

• 180 litres

• Internal anti-corrosion protection with copper or stainless steel

• It does not have an anode, which makes it maintenance free

3 Exchange valve

• The heated water either passes through to the heating system or to the water heater depending on whether heating or hot water is to be produced

4 Auxiliary heat

• 9 kW electric heating element (4.5 kW at 230 V heat pump installation)

• Electric heating element control in maximum of three steps (5 steps for DHP-A)

• Installed on the heating system’s supply pipe

• Covers the demand of extra energy if the heat pump’s capacity is exceeded

• Automatically connected in the heat pump unit if operating mode AUTO is selected.

5 Control equipment

• Control computer with graphic display

• Temperature sensors (outdoor, supply pipe, return pipe, brine and hot water)

• Room sensor (option)

The control equipment controls the heat pup unit’s included components (compressor, circulation pumps, auxiliary heaters and exchange valve) and determines when to start and stop the pump as well as producing heat for the house or hot water.

11 .3 Auxiliary heating, DHP-H, DHP-L, DHP-C

If the heat demand is greater than the heat pump’s capacity, the auxiliary heater engages automatically. The auxiliary heater is made up of an electric heating element on the supply pipe that has two outputs, ADD.HEAT 1 and ADD.HEAT 2, and can be controlled in three steps.

For three phase, 400V, installations:

• Step 1 = ADD.HEAT 1 = 3 kW

• Step 2 = ADD.HEAT 2 = 6 kW

• Step 3 = ADD.HEAT 1 + ADD.HEAT 2 = 9 kW

For single phase, 230V, installations:

• Step 1 = ADD.HEAT 1 = 1.5 kW

• Step 2 = ADD.HEAT 2 = 3 kW

• Step 3 = ADD.HEAT 1 + ADD.HEAT 2 = 4.5 kW

In the event of an alarm, the auxiliary heater engages automatically.

11 .4 Auxiliary heating, DHP-A

The auxiliary heater is made up of an electric heating element on the supply pipe that has three outputs, ADD.HEAT 1, ADD.HEAT 2 and

ADD.HEAT 3, and can be controlled in five steps for three phase installations:

For three phase, 400V, installations:

• Step 1 = ADD.HEAT 1 = 3 kW

• Step 2 = ADD.HEAT 2 = 6 kW

• Step 3 = ADD.HEAT 1 + ADD.HEAT 2 = 9 kW

• Step 4 = ADD.HEAT 2 + ADD.HEAT 3 = 12 kW

• Step 5 = ADD.HEAT 1 + ADD.HEAT 2 + ADD.HEAT 3 = 15 kW

For single phase, 230V, installations:

• Step 1 = ADD.HEAT 1 = 1.5 kW

• Step 2 = ADD.HEAT 2 = 3 kW

• Step 3 = ADD.HEAT 1 + ADD.HEAT 2 = 4.5 kW

In the event of an alarm, the auxiliary heater engages automatically.

11 .5 Water heater, DHP-H, DHP-C

Danfoss heat pumps DHP-H, DHP-C, are supplied with an integrated 180 litre water heater.

The temperature of the hot water cannot be adjusted. Hot water production does not cease at a determined temperature but when the operating pressure switch reaches its maximum operating pressure, which corresponds to a hot water temperature of approximately 50-

55°C.

Using a regular time interval, the water in the water heater is heated to 60°C to prevent the build up of bacteria (legionella function). The factory set time interval is seven days.

Hot water production is prioritised ahead of heat production, i.e. no heat is produced if there is a hot water demand.

VMBMA102 2

11 .6 Water heater, DHP-A

Danfoss DHP-A is supplied with an integrated 180 litre water heater with a tank outside the water heater that contains the anti-freeze. The difference between DHP-A’s water heater and other models is the defrost function of the outdoor unit, otherwise they are the same and have the same functions.

1

2

2

3

4

5

Position Name

1 Hot water line

Temperature sensors

Tank for anti-freeze

Water heater

TWS coil

3

4

5

Figure 52: Water heater in DHP-A .

11 .7 Important parameters

Heat production - calculating

The indoor temperature is adjusted by changing the heat pump’s heat curve, which is the control computer’s tool for calculating what the supply temperature should be for water that is sent out in the heating system. The heat curve calculates the supply temperature depending on the outdoor temperature. The lower the outdoor temperature, the higher the supply temperature. In other words, the supply temperature of the water fed to the heating system will increase exponentially as the outside air temperature falls.

The heat curve will be adjusted in connection with installation. It must be adapted later on, however, to obtain a pleasant indoor temperature in any weather conditions. A correctly set heat curve reduces maintenance and saves energy.

CURVE

The control computer shows the value for CURVE by means of a graph in the display. You can set the heat curve by adjusting the CURVE value.

The CURVE value indicates the supply temperature of the water to be sent out to the heating system at an outdoor temperature of 0°C.

Supply temperature

Maximum supply temperature

Value for CURVE is 40...

Outdoor temperature

...at zero degrees

Figure 53: Graph showing the set value 40 for CURVE .

At outdoor temperatures colder than 0°C, supply water hotter than 40°C is sent out to the heating system and at outdoor temperatures greater than 0°C, supply water cooler than 40°C is sent out.

0 VMBMA102

Supply temperature

Maximum supply temperature

Outdoor temperature

Figure 54: Increasing or reducing the CURVE changes the slope of the curve

If you increase the CURVE value, the heat curve will become steeper and when you reduce it, it will become flatter.

The most energy efficient and cost effective setting is achieved by changing the CURVE value to adjust the temperature in the house to an even and constant temperature. For a temporary increase or reduction, adjust the ROOM value instead.

ROOM

If you wish to increase or reduce the indoor temperature, change the ROOM value. The difference between changing the ROOM value and the CURVE value is that the system’s heat curve does not become steeper or flatter if the ROOM value is changed, which the curve becomes if the CURVE value changes, instead the entire heat curve is moved by 3°C for every degree change of the ROOM value. The reason that the curve is adjusted 3° is that an approximate 3° increase in supply temperature is needed to increase the indoor temperature 1°.

Supply temperature

Maximum supply temperature

Outdoor temperature

Figure 55: Changing the ROOM value changes the heat curve upwards or downwards .

The relationship of the supply temperature to outdoor temperature will not be affected. The supply temperature will be increased or reduced by the same number of degrees all along the heat curve. I.E. the entire heat curve rises or drops instead of the curve gradient changing.

This method of adjusting the indoor temperatures must only be used for a temporary raise or drop. For long term increases or reductions of the indoor temperature, the heat curve is adjusted instead.

Sometimes, at outdoor temperatures between -5°C and +5°C, part of the heat curve may need adjusting if the indoor temperature is not constant. For this reason, the control system includes a function adjusting the curve at three outdoor temperatures: -5°C, 0°C, +5°C. This function will allow you to increase or reduce the supply temperature, without affecting the heat curve, at three specific outdoor temperatures. If, for example, the outdoor temperature is -5°C, the supply temperature will change gradually between 0°C and -10°C, maximum adjustment being reached at -5°C. The figure below shows the adjusted CURVE -5. The adjustment can be seen in the graph in the form of a bump.

Supply temperature

Local higher supply temperature at -5°

Outdoor temperature

Figure 56: The adjusted curve at -5°C

You can choose to adjust the heat curve individually at three specified outdoor temperatures: -5°C, 0°C, +5°C. The supply temperature can be changed by plus/minus 5 degrees.

VMBMA102 1

HEATSTOP

The HEATSTOP function automatically stops all production of radiator heat when the outdoor temperature is equal to, or higher than, the value entered for heat stop.

When the heat stop function is activated, the circulation pump will be turned off - except when hot water is being produced. The circulation pump will be "exercised" for 1 minute per day. The factory set value for activating heat stop is an outdoor temperature of 17°C. If the heat stop function is active, the outdoor temperature must drop 3°C when setting, before the heat stop stops.

MIN and MAX

The MIN and MAX values are the lowest, respectively highest set point values that are allowed for the supply temperature.

Adjusting the minimum and maximum supply temperatures is particularly important if your home has under floor heating.

If your house has under floor heating and parquet floors, the supply temperature must not exceed 45°C. Otherwise there is a risk that the parquet floors might be damaged If you have under floor heating and stone tiles, the MIN value should be 22-25°C, even in summer when no heating is required. This is to achieve a comfortable floor temperature.

If your house has a basement, the MIN value should be adjusted to a suitable temperature for the basement in summer. A condition for maintaining the heat in the basement in the summer is that all radiators have thermostat valves that switch off the heat in the rest of the house. It is extremely important that the heating system and the radiator valves are trimmed correctly. As it is usually the end customers themselves who have to carry out trimming, remember to inform them how to carry it out correctly. Also remember that the value for

HEATSTOP needs adjusting upwards for summer heating.

TEMPERATURES

The heat pump can display a graph showing the history of the various sensors’ temperatures and you can see how they have changed over

60 measurement points in time. The time interval between the measurement points can be adjusted between one minute and one hour, factory setting is one minute.

History is available for all sensors, but only the set value is shown in the display for the room sensor. The integral value that may appear is the heating system’s energy balance.

INTEGRAL

The heat demand in the house depends on the season and weather conditions and is not constant. The heat demand can be expressed as temperature difference over time and can be calculated giving an integral value as a result (heat demand). To calculate the integral value, the control computer uses several parameters.

A heat deficit is needed to start the heat pump, and there are two integral values, A1 and A2, which start the compressor and auxiliary heater. During heat production, the deficit reduces and when the heat pump stops, the inertia in the system causes a surplus of heat.

The integral value is a measurement of the surface under the time axle and is expressed in degree minutes. The figure below shows the factory settings for the integral values that the heat pump has. When the integral value has reached the set value for INTEGRAL A1, the compressor starts and if the integral value does not drop but continues to rise, the auxiliary heater starts when the integral value has reached the set value for INTEGRAL A2.

INTEGRAL A1

INTEGRAL A2

Integral

(Heat demand)

Heat surplus

Compressor start

(-60)

Auxiliary heater start

(-660)

Heating deficit

Heat surplus

Compressor stop

(≥0)

Auxiliary heater stop

(latest at -60)

Compressor start

(-60)

Auxiliary heater start

(-660)

INTEGRAL A1

INTEGRAL A2

Time

Auxiliary heater

Compressor

Auxiliary heater

Compressor

No operation No operation

Heat pump operation

Figure 57: Starting and stopping heat pump operation based on integral values .

The integral value calculation stops during hot water production and during heat stop. Integral value calculation resumes two minutes after completed hot water production to give the heating system time to stabilise the temperature.

More specific conditions for starting and stopping the heat pump are described in the “Operating conditions” chapter.

2 VMBMA102

HYSTERESIS

In order to start the heat in advance during sudden changes of the heat demand, there is a value, HYSTERESIS, which controls the difference between the actual supply temperature, t1 and the calculated supply temperature, t2. If the difference is the same or greater than the set HYSTERESIS value (x), i.e. there is a heat demand, or the heat demand disappears, quicker than the usual integral calculation, the integral value is forced to either the start value INTEGRAL A1 or to the stop value 0°min.

SUPPLY TEMP.

t

1 t

2

HYSTERESIS

(∆t) ≥ x

HYSTERESIS

(∆t) ≥ x

INTEGRAL

Compressor start

(-60)

TIME

Compressor stop

(0)

Figure 58: Conditions for HYSTERESIS to force the integral value to change .

VMBMA102

12 Control computer

12 .1 Function description

A control computer is used to automatically calculate the heat demand in the house where the heat pump is installed and to ensure that the correct amount of heat is produced and emitted where necessary. There are many different values (parameters) that must be referred to during the calculation of the heat demand. During installation use the control computer to set and change certain values that have to be adapted according to the house demand. The control computer is also used during service to view alarms and history, and to check the value settings. The display window, keypad and an indicator are on the front of the control computer. It consists of a simple menu system that is used to navigate the desired settings and values.

ROOM 20°C

NO DEMAND HEAT

OPERAT. AUTO

The symbols in the display are only examples. Certain symbols cannot be displayed at the same time.

Figure 59: Display, control buttons and indicator for the heat pump .

Use the four control buttons on the keypad to navigate the menus and increase or reduce the set values:

• An up button with a plus sign

• A down button with a minus sign

• A right button with a right arrow

• A left button with a left arrow

The display always shows the set ROOM value and the status of the heat pump.

There are two main menus that are used to affect the heat pump settings. The menus are designed for two categories of user, end customers and installers, who make different settings in the control computer. For this reason the service menu is hidden from end customers.

3s

INFORMATION

SERVICE

Figure 60: The menus are reached via different button presses .

The main menu, INFORMATION, is opened by pressing the left or right buttons. From the INFORMATION menu you can open the sub menus to make settings for the heat pump.

For installation or service, the hidden menu, SERVICE, is used. This is opened by holding the left and right buttons depressed for three seconds. From the service menu you can open sub menus to make advanced settings.

4 VMBMA102

12 .2 Display

The display of the control computer shows information about the heat pump’s operation, status and any alarms, in text form. The status, indicated by symbols, is also shown in the lower section which shows the heat pump’s active process.

Operating mode

Appears with applicable heat pump operating status text.

Operating mode

(OFF)

AUTO

HEATPUMP

ADD. HEAT

HOT WATER

Meaning

The installation is fully switched off.

⚠ Remember that if the operating mode OFF is to be used for long periods during the winter, the water in the heating system in the installation must be drained, otherwise there is a risk of frost damage .

The heat pump and the auxiliary heater are automatically controlled by the control computer.

The control computer is controlled so that only the heat pump unit (compressor) is allowed to operate.

The control computer only permits the auxiliary heater to be in operation. This operating mode can be used when a new installation is being used, when the brine system is not ready for operation.

In this mode the heat pump only produces hot water, no heat goes to the heating system.

Symbols

Displays the operating status of the heat pump using symbols.

Symbol

HP

Meaning

Indicates that the compressor is in operation. An “F” next to the symbol indicates that a flow switch is installed.

LIGHTNING Indicates that the auxiliary heater is in operation. Number of auxiliary power stages indicated by digit.

HOUSE Indicates that the 3-way valve position is for heat production for the house.

VL

TAP

SYSTEM

CLOCK

TANK

SQUARE

DEFROST

FAN

Indicates that the 3-way valve’s position is for hot water production.

Indicates the set system VL / D / VL+F / D+F (+F indicates that a flow switch is installed)

Indicates that tariff control is active.

Indicates the level of hot water in the water heater. During charging, the tank is filled and filling starts at the set start temperature. A lightning symbol by the symbol indicates peak heating charging (legionella function).

Either indicates that the operating pressure switch has deployed, or that the hot gas temperature has reached its maximum temperature.

Displayed if defrosting is active. (DHP-A)

Displayed if the fan is active L=Low speed and H= High speed. (DHP-A)

COOLING Indicates Cooling. A indicates active cooling.

Text

Appears with applicable heat pump operating status text.

Message

ROOM --°C

ERR PHASE SEQ.

HIGH RETURN

START

Meaning

Shows the set ROOM value. Standard value: 20°C.

If the accessory room sensor is installed it shows the desired indoor temperature within brackets and the actual temperature.

Alarm that indicates that there is an incorrect phase sequence to the compressor. Only display and only the first 10 minutes.

Alarm that indicates that the high return temperature prevents the compressor’s operation.

Indicates that there is a demand for heating production and that no start delay is active.

VMBMA102

Message

EVU STOP

NO DEMAND HEAT

HIGHPRESS ERROR

LOWPRESS ERROR

MOTOR P ERROR

BRINEFLOW LOW

SENSOR

Meaning

Indicates that the additional function EVU is active. This means that the heat pump is off as long as EVU is active.

Indicates that there is no heating production demand.

Alarm that indicates that the high pressure switch has deployed.

Alarm that indicates that the low pressure switch has deployed.

Alarm that indicates that the motor protection has deployed.

Appears if the accessory flow switch is installed. Alarm that indicates that the flow in the brine system is low.

Alarm that indicates a faulty sensor.

HEATPUMP START --MIN Indicates that there is a heating production demand and will start in the specified number of minutes.

HEATPUMP+ADD.HEAT

START_MIN

Indicates that heat production is active with both compressor and auxiliary heater.

Indicates that there is a demand for heating production but that a start delay is active.

ADD. HEAT

COOLING

COOLING A

DEFROST

Indicates that there is an auxiliary heater demand.

Displayed if cooling is passive.

Displayed if cooling is active.

Displayed if defrosting is active. (DHP-A)

VMBMA102

13 Menus

13 .1 Main menu INFORMATION

This menu is used to change the heat pump’s operating modes and adjust the heat curve. History and operating times can also be viewed here.

Open the menu by pressing the left or right button. The sub menus available in the INFORMATION menu are shown in the following table:

Main menu

INFORMATION

Sub menu Selection/settings

OPERATION

Ø

AUTO

HEATPUMP

ADD. HEAT

HOT WATER

MANUAL TEST

HEATCURVE

CURVE

MIN

MAX

CURVE +5

CURVE 0

CURVE -5

HEATSTOP

REDUCTION

ROOM FACTOR

POOL

POOL HYSTERESIS

HEAT CURVE 2 (Expansion card)

CURVE 2

MIN

MAX

TEMPERATURE

OUTDOOR

ROOM

SUPPLY PIPE

RETURN PIPE

HOT WATER

INTEGRAL

BRINE OUT

BRINE IN

POOL

SHUNTGROUP

COOLING

CURRENT

OPERAT.TIME

HEATPUMP

ADD. HEAT 1

ADD. HEAT 2

ADD. HEAT 3

HOT WATER

COOLING

COOLING A

DEFROST (Defrost card)

DEFROSTS

BETW. 2 DEFR

TIME SINCE DEFROST

FAN H OFF AT

DEFROST CURVE

MANUEL DEFR

VMBMA102

Sub menu INFORMATION -> OPERATION

Used to select operating mode.

Menu selection Meaning

The installation is off. Any active alarms reset.

(OFF)

AUTO Automatic operation with both heat pump and auxiliary heater permitted. If the number of power stages for auxiliary heating are set to zero (SERVICE -> AUX.

HEAT -> MAX STAGE) only AUTO or OFF can be selected as operating mode.

HEATPUMP

ADD. HEAT

HOT WATER

MANUAL TEST

Operation with only heat pump permitted. NOTE! No peak heating charging

(legionella function) with only heat pump operation.

Operation with only auxiliary heater permitted.

Operation with heat pump for hot water production and auxiliary heater during peak heating charging (legionella function).

Only appears when MANUAL TEST in the SERVICE menu is active. Outputs controlled manually.

-

-

-

-

-

-

Factory setting

Sub menu INFORMATION -> HEAT CURVE

Used to change settings for the heat curve.

Menu selection

CURVE

MIN

MAX

CURVE 5

CURVE 0

CURVE -5

HEATSTOP

REDUCTION

ROOM FACTOR

POOL

(Expansion card)

POOL HYSTERESIS

(Expansion card)

Meaning

Calculated supply temperature at 0°C outdoor temperature. Shown as a graph that also shows MIN and MAX values.

Minimum permitted supply temperature, if the temperature for heat stop has been reached and the heat pump has stopped.

Maximum permitted supply temperature.

Local increase or reduction of CURVE at an outdoor temperature of +5°C. Shown in the graph for CURVE.

Local increase or reduction of CURVE at an outdoor temperature of 0°C. Shown in the graph for CURVE.

Local increase or reduction of CURVE at an outdoor temperature of -5°C. Shown in the graph for CURVE.

Maximum outdoor temperature when heat production is permitted.

If HEAT STOP applies, the outdoor temperature must drop 3°C below the setting before HEAT STOP stops.

Only appears if the tariff control function has been activated. Lowering set room temperature. Active at 10 kohm connection at EVU input.

Only displayed if a room temperature sensor is installed. Determines how much the control computer is to refer to the room temperature sensor when calculating the supply temperature.

Only appears if POOL is selected. The temperature in the pool is controlled by a separate sensor regardless of the heating and hot water system.

Only appears if POOL is selected. If the difference between the actual supply temperature to pool and the calculated supply temperature is too great, either the integral value is set to start value A1 (the heat pump starts) or the value is set to 0 (stops the heat pump).

Factory setting

40°C

(during under floor heating 30°C)

(interval: 22°C - 56°C)

10°C (interval: 10°C -

50°C)

55°C

(during under floor heating 45°C)

(interval: 40°C - 85°C)

0°C (interval: -5°C - 5°C)

0°C (interval: -5°C - 5°C)

0°C (interval: -5°C - 5°C)

17°C (interval: OFF, 0°C

- 40°C)

(interval: 1°C - 10°C)

2 (interval: 1 - 5)

(1 = small, 5 = large)

20°C (interval: OFF, 5°C

- 35°C)

2°C (interval: 1°C - 21°C)

Sub menu INFORMATION -> HEAT CURVE 2

The menu only applies if the expansion card is installed and only appears if shunt group sensor is connected and activated in menu

SERVICE -> INSTALLATION -> SYSTEM -> SHUNTGROUP (Expansion card). Used to change settings for heat curve 2.

Menu selection

CURVE 2

MIN

MAX

Meaning

Calculated shunt group temperature at 0°C outdoor temperature. Shown as a graph that also shows MIN and MAX values.

Minimum permitted shunt group temperature, if the temperature for heat stop has not been reached.

Maximum permitted shunt group temperature.

Factory setting

40°C

(interval: 22°C - 56°C)

10°C

(interval: 10°C - 40°C)

55°C

(interval: 40°C - 85°C)

VMBMA102

Sub menu INFORMATION -> TEMPERATURE

Used to indicate the prevailing temperatures, history and set/calculated values. History can be accessed to view all the values by pressing the right arrow to present a graph of the last 100 measurement points for the set time interval (SERVICE -> INSTALLATION -> LOGTIME). In the event of an alarm, history stops being logged until the alarm is reset by changing the operating mode to OFF.

Menu selection Meaning Factory setting

OUTDOOR

ROOM

SUPPLY PIPE

RETURN PIPE

HOT WATER

INTEGRAL

BRINE OUT

BRINE IN

POOL

(Expansion card)

SHUNTGROUP

(Expansion card)

COOLING

(Expansion card)

CURRENT

(Expansion card)

Shows the actual outdoor temperature.

Shows the actual set temperature.

Shows the actual supply temperature. The calculated supply temperature to the house is within brackets.

Shows the actual return temperature. The stop temperature, MAX RETURN is within brackets.

Shows the actual hot water temperature.

Shows the actual calculated value for integral.

Shows the actual temperature for the brine system’s supply pipe.

Shows the actual temperature for the brine system’s return pipe.

Only appears if POOL is selected. Shows the actual pool temperature. The set pool temperature is shown in brackets.

Only appears if SHUNTGROUP is selected. Shows the actual supply temperature.

The calculated supply temperature to the shunt group is within brackets.

Only appears if COOLING is selected. Shows the actual supply temperature. The set point value is shown in brackets.

Only appears if CURRENT LIMITER is selected. Shows the actual current consumption. The set value for MAX CURRENT is shown between brackets.

-

-

-

-

-

-

-

-

-

-

-

-

Sub menu INFORMATION -> OPERAT . TIME

Used to show the operating time for each component. Time given in hours.

Menu selection

HEATPUMP

ADD. HEAT 1

ADD. HEAT 2

ADD.HEAT 3

(Defrost card)

HOT WATER

COOLING

(Expansion card)

COOLING ACTIVE

(Expansion card)

Meaning

Compressor operating time for both heating and hot water production.

Operating time auxiliary heater power stage 1 with full output 3 kW (VL).

Operating time auxiliary heater power stage 2 with full output 6 kW (VL).

Operating time auxiliary heater power stage 3 with full output 6 kW (VL).

Operating time hot water with compressor.

Operating time passive cooling.

Operating time active cooling.

-

-

-

-

-

-

-

Factory setting

Sub menu INFORMATION -> DEFROSTING (DHP-A)

The menu applies to DHP-A with defroster card and only appears if OUTDOOR AIR in the SERVICE -> INSTALLATION -> SYSTEM -> HEAT

SOURCE menus is selected. Used to obtain information about outdoor unit defrosting and to make certain settings.

Menu selection

DEFROSTS

BETW. 2 DEFR

TIME SINCE DEFROST

FAN H OFF AT

DEFROST CURVE

MANUEL DEFR

Meaning

Total number of defrosts carried out.

The operating time of the compressor in minutes between the 2 last defrosts.

The operating time of the compressor in minutes since last defrost.

Fan high speed is deactivated at this temperature and low speed is activated.

Here, the angle of the defrost curve can be changed using the right-hand arrow and by either pressing + or – (Change the start temperature for defrost).

By using the right-hand arrow + or -, defrost can be started manually (shunts

+20°C for 10 minutes).

Factory setting

-

-

-

-

-

-10°C (interval: -10°C

- -4°C)

VMBMA102

13 .2 Main menu SERVICE

This menu is for use during installation and service to optimise and adjust the operation of the heat pump. Access the menu by holding the left and right arrows in for 3 seconds. The sub menus available in the SERVICE menu are shown in the following table:

Main menu

SERVICE

Sub menu Selection/settings

HOT WATER

START

HOT WATER TIME

HEATING TIME

TOPH.INTERVAL

TOPH.STOP

HEATPUMP

INTEGRAL A1

HYSTERESIS

MAX RETURN

STARTINTERVAL

ALARM BRINE

PRESSURE PIPE

OUTDOOR STOP

SHUNT COOLING

ADD. HEAT

INTEGRAL A2

HYSTERESIS

MAXSTEP

MAX CURRENT

SHUNTTIME

HOT WATER STOP

MANUAL TEST

MANUAL TEST

HEATPUMP

BRINEPUMP

CIRC.PUMP

VXV HOT WATER

SHUNT 1

ADD. HEAT 1

ADD. HEAT 2

ADD. HEAT 3

SHUNT DEFR

FAN L

FAN H

ADD.HEAT EXT

ALARM

SHUNT COOLING

SHUNTGROUP

COOLING PASSIVE

COOLING A

VXV POOL

INSTALLATION

SWEDISH

SYSTEM

SERVICETIME

FACTORY SET

RESET OPERAT. TIME

CALIBRATION SENSOR

LOGTIME

BRINETIME ON

BRINETIME OFF

TOPH.TIME

TOPH.TIME D

HEAT SOURCE

HEATING SYSTEM

COOLING

POOL

SHUNTGROUP

ADD. HEAT

DEFROST

DEFR CURVE 0

DEFR CURVE -XX

DEFR TEMPERATURE

STOP DEFR

UNDER 5°C DEFR

DEFR SENSOR

MIN TIME DEFROST

40 VMBMA102

Sub menu SERVICE -> HOT WATER

Used to change hot water production.

Menu selection

START

HOT WATER TIME

HEATING TIME

TOPH. INTERVAL

TOPH. STOP

Meaning

Start temperature for hot water production. Shows the actual hot water temperature and the value within brackets indicates the start temperature. (OFF = no sensor alarm)

Time for hot water production during combined hot water and heating demand, in minutes.

Factory setting

40°C (at OUTSIDE AIR temperature of 38°C)

(interval: OFF, 30°C -

55°C)

40M (up to 8kW)

20M (10kW and more)

(interval: 5M - 40M

20M (interval: 5M - 40M) Time for hot water production during combined heating and hot water demand, in minutes.

Time interval between peak heating charging, legionella function, in days.

Stop temperature for peak heating charging (applies to VL system).

7D (interval: OFF 1D

- 90D)

60°C (interval: 50°C -

65°C)

Sub menu SERVICE -> HEATPUMP

Used to change the heat pump’s operating settings.

Menu selection

INTEGRAL A1

HYSTERESIS

MAX RETURN

STARTINTERVAL

ALARM BRINE

PRESSURE PIPE

OUTDOOR STOP

Meaning

The integral’s value for starting the heat pump.

See figure 6 for further information.

If the difference between the actual supply temperature and the calculated supply temperature is too great either the integral value is set to start value A1 (the heat pump starts) or the value is set to 0 (stops the heat pump).

Stop temperature at high return from the heating system.

Minimum tine interval between two heat pump starts in minutes.

Not shown if OUTSIDE AIR is selected as heat source. Alarm temperature for supply brine (brine out), which stops the heat pump. (OFF = no sensor alarm)

Sensor on the compressor’s hot gas line. Value within brackets indicates maximum permitted temperature. If this value is exceeded, the compressor will stop and start again as soon as the temperature has dropped. No alarm shown in the display, however, a square is shown in the left, lower corner of the display.

Lowest outdoor temperature when the outdoor sensor stops the compressor and heating or hot water instead produce with auxiliary heater.

SHUNT COOLING

(Expansion card)

Set point value for cooling. Desired temperature for supply pipe.

Factory setting

60 (interval: 5 - 300)

10°C (at OUTSIDE AIR temperature of 12°C)

(interval: 1°C - 15°C)

55°C (interval: 30°C - 70°C)

20M (interval: 10M - 30M)

OFF (interval: OFF, -14°C - 10°C)

130°C (interval: 100°C - 150°C)

OFF (at OUTSIDE AIR temperature of -20°C)

(interval: OFF, -39°C - -1°C)

(interval at OUTSIDE AIR:

OFF, -20°C - -1°C)

16°C (interval: 0°C - 30°C)

Sub menu SERVICE -> ADD . HEAT

Used to change the heat pump stage’s operating settings.

Menu selection

INTEGRAL A2

HYSTERESIS

MAXSTEP

Meaning

Two conditions must be fulfilled in order to start the auxiliary heater: the integral’s value to start must be less than integral A1 + A2, and the supply temperature must be 2° lower than the calculated temperature. See figure 6 for further information.

If the difference between the actual supply temperature and the calculated supply temperature is too great (see figure 7), either the integral value is set to start value A1 + A2 (the auxiliary heater starts) or the value is set to 0 (stops the auxiliary heater ).

Maximum number of permitted steps for auxiliary heating.

0 = no auxiliary heating permitted (Means that only AUTO or OFF can be selected.)

MAX CURRENT

(Expansion card)

Refers to main fuse in the unit.

Factory setting

600 (interval: 50 - 990)

20°C (interval: 5°C - 30°C)

-

2 (at OUTSIDE AIR 5)

(interval: 0 - 3)

(interval at OUTSIDE AIR:

0 - 5)

VMBMA102 41

Menu selection

SHUNTTIME

HOT WATER STOP

Meaning

Minimum time interval between signals to shunt motor to affect the supply temperature, in seconds. Applies to all connected shunt groups (applies to system D or VLD).

Stop temperature for hot water during ADD. HEAT operation (applies to system

VL system).

Factory setting

60S (interval: 10S - 99S)

60°C (interval: 50°C -

65°C)

Sub menu SERVICE -> MANUAL TEST

Used to manually test and test operate the heat pump’s components or signal outputs.

Menu selection

MANUAL TEST

HEATPUMP

BRINEPUMP

CIRC: PUMP

VXV HOT WATER

SHUNT 1

ADD. HEAT 1

ADD. HEAT 2

ADD. HEAT 3 ( DHP-A )

(Defrost card)

SHUNT DEFR ( DHP-A )

(Defrost card)

FAN L

(Defrost card)

FAN H

(Defrost card)

ADD.HEAT EXT ( DHP-A )

(Defrost card)

ALARM

(Expansion card)

SHUNT COOLING

(Expansion card)

SHUNTGROUP

(Expansion card)

COOLING PASSIVE

(Expansion card)

COOLING ACTIVE

(Expansion card)

VXV POOL

(Expansion card)

Meaning

Setting options for manual test.

0 = deactivate manual test

1 = activate manual test

2 = activate manual test with option of navigating from the SERVICE menu to check that the temperatures rise.

0 = stop heat pump, does not stop started brine pump

1 = start heat pump, also starts brine pump.

NOTE! The heat pump cannot be started in the event of an active alarm.

0 = stop brine pump

1 = start brine pump

0 = stop circulation pump

1 = start circulation pump

0 = heating mode for 3-way valve

1 = hot water mode for 3-way valve

- = closes shunt (applies to D-system)

0 = shunt unaffected

+ = opens shunt (applies to D-system)

0 = stop auxiliary heat step 1

1 = start auxiliary heat step 1

0 = stop auxiliary heat step 2

1 = start auxiliary heat step 2

0 = stop auxiliary heat step 2

1 = start auxiliary heat step 3

- = opens flow from the defrost tank

0 = shunt unaffected

+ = closes the flow from the defrost tank

0 = stop fan

1 = start fan with low speed

0 = stop fan

1 = start fan with high speed

0 = 0V on terminal block 283

1 = control voltage 230V on terminal block 283

0 = stop signal on output External alarm

1 = start signal on output External alarm

- = shuts shunt

0 = shunt unaffected

+ = opens shunt

- = shuts shunt

0 = shunt unaffected

+ = opens shunt

0 = stop passive cooling

1 = start passive cooling (brine pump starts and shunt cooling regulates to set point value)

0 = stop active cooling

1 = start active cooling (brine pump and compressor starts, shunt cooling regulates to set point value)

0 = normal mode for exchange valve

1 = pool mode for exchange valve

Factory setting

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

42 VMBMA102

Sub menu SERVICE -> INSTALLATION

Used for settings that are set during installation

Menu selection

SWEDISH

SYSTEM

NOTE! The menu selection in the SYSTEM menu varies depending on the selected values. Tip: start in the top menu and work downwards.

SERVICETIME

FACTORY SET

RESET OPERAT. TIME

CALIBRATION SENSOR

Meaning

Language setting for the control computer.

Factory setting

SWEDISH

(SVENSKA

NORSK,

SUOMI,

DEUTSCH,

NEDERLANDS,

ENGLISH,

FRANCAIS

POLSKI

EESTI

DANSK

ESPANOL

LATVIESU VALODA)

Sub menu SERVICE -> INSTALLATION -> SYSTEM:

Menu selection

HEAT SOURCE

HEATING SYSTEM

Meaning

GROUND OR ROCK

OUTSIDE AIR (Defrost card)

VL-SYSTEM

D-SYSTEM

VLD-SYSTEM (appears if OUTSIDE AIR is selected)

COOLING

(Expansion card)

COOLING PASSIVE: OFF/EXTERNAL/INTEGRATED IN HP

COOLING ACTIVE: OFF/EXTERNAL

ROOM SENSOR: 0/1 (Appears if room sensor is installed)(0=controls to a constant value, 1=controls to the value that the room sensor has)

ON/OFF POOL

(Expansion card)

SHUNTGROUP

(Expansion card)

ADD. HEAT

ON/OFF

When ON, HEAT CURVE 2 is activated in the INFORMATION menu.

CONTROLLED CP: only OFF

FLOW SWITCH: ON/OFF

CURRENT LIMITER: ON/OFF(Expansion card)

PHASE FAULT: OFF / PHASE READING

-

NOTE!

Only used for test operation. Simulates time 60 times as fast, which means that the waiting times are eliminated during test operation.

0 = deactivates SERVICETIME

1 = activates SERVICETIME which speeds up the control computer’s integral calculation and start delay by 60 times.

-

0 = starting point, the value returns to zero after a change

R = reset factory settings for radiator system

G = rest factory settings for under floor heating

0 = no reset of operation times

1 = reset operation times to zero

Following sensors are in the installation:

OUTDOOR

SUPPLY PIPE

RETURN PIPE

HOT WATER

BRINE OUT

BRINE IN

DEFR SENSOR

EXTERNAL INFLUENCE (these parameters affect all sensors except the outdoor sensor. The parameter compensates for the external influence on the sensor that is mounted in the heat pump.

-

(interval: -5°C - 5°C)

0 (at OUTSIDE AIR 5)

(interval: 0 - 20)

LOGTIME Time interval between collection points of temperature history in minutes. The history graphs always show the 60 last collection points, which means that the graphs can display history from 1 hour up to 60 hours ago.

(The function is not active if there is an active alarm).

1M (interval: 1M - 60M)

VMBMA102 4

Menu selection

BRINETIME ON

BRINETIME OFF

TOPH. TIME

TOPH.TIME D

Meaning

Switch on delay for compressor, in seconds.

Switch off delay for brine pump, in seconds.

OFF = Deactivates time period for peak heating charging (applies to system D).

ON = Activates time period for peak heating charging (applies to system D).

Time period to maintain peak heating charging temperature in hours (applies to system D).

Factory setting

30S (interval: 10S - 600S)

-

30S (interval: 10S - 600S)

1H (interval: 1H - 10H)

Sub menu SERVICE -> DEFROST ( DHP-A )

The menu applies to DHP-A with defroster card and only appears if OUTDOOR AIR in the SERVICE -> INSTALLATION -> SYSTEM -> HEAT

SOURCE menus is selected. Used to change settings for outdoor unit defrost.

Menu selection

DEFR CURVE 0

DEFR CURVE -XX

DEFR TEMPERATURE

STOP DEFR

FAN STOP

Meaning

Here, the angle of the defrost curve can be changed using the right-hand arrow and by either pressing + or – (change the start temperature for defrost).

Here, the angle of the defrost curve can be changed using the right-hand arrow and by either pressing + or – (change the start temperature for defrost).

The temperature shunted to the outdoor unit during a defrost.

The temperature that must be reached in the Brine In sensor to complete a defrost.

The fan starts when the Brine in temperature drops to the set value.

Factory setting

-10°C (interval: -10°C - -

4°C)

EXTERIOR STOP -4°C

(interval: EXTERIOR STOP

-8°C – EXTERIOR STOP

-1°C)

15°C (interval: 10°C -

20°C)

9°C (interval: 7°C - 15°C)

UNDER 5°C DEFR

DEFR SENSOR

MIN TIME DEFROST

Safety defrosting occurs when the outdoor temperature has been below 5° for a set number of days, shunts +20°C for 10 minutes.

Shows the current air temperature that has passed the outdoor unit.

Minimum time between two defrosts in minutes.

40°C (interval: 22°C -

56°C)

7°C (interval: OFF, 1°C

- 14°C)

-

45M (interval: 0M - 60M)

44 VMBMA102

14 Operating conditions

If there is a demand for both heat production and hot water production, it switches between heating and hot water according to the seat time for HEATING TIME and HOT WATER TIME.

14 .1 Starting heat production, DHP-H, DHP-C, DHP-L

Heat pump (compressor)

1. The integral value is less than or equivalent to what is set in INTEGRAL A1 and

2. at least 5 minutes have passed since the heat pump stopped and

3. the time since the previous start, set to START INTERVAL, has run out and

4. the operating pressure switch is closed (=1) and

5. if HEAT STOP stops and

6. if OUTDOOR STOP stops and

7. if the brine temperature is greater than the activated ALARM BRINE (factory setting: OFF) or

8. if the set value for HYSTERESIS is reached the integral value is forced to the value for INTEGRAL A1, which fulfils point 1.

Auxiliary heat

9. The integral value is less than or equivalent to the sum of INTEGRAL A1 + INTEGRAL A2 and

10. the actual temperature on the supply pipe is at least 3°C lower than the calculated supply temperature or

11. if the set value for HYSTERESIS is reached the integral value is forced to the value for INTEGRAL A1 + INTEGRAL A2, which fulfils point 9.

14 .2 Stopping heat production

Heat pump (compressor)

1. The integral value is greater or equivalent to 0°min (degree minutes) or

2. the return temperature is greater than, or the same as, the set maximum return temperature or

3. when the operating pressure switch has been open (=0) for more than 5 seconds or

4. if the pressure pipe sensor has reached its maximum permitted temperature or

5. if the outdoor temperature is greater or the same as HEAT STOP or

6. if the outdoor temperature is lower than or the same as OUTDOOR STOP or

7. if the brine temperature is lower than or the same as the activated ALARM BRINE (factory setting: OFF) or

8. if the set value for HYSTERESIS is reached the integral value is forced to 0°min, which fulfils point 1.

Auxiliary heat

9. The integral value is greater than the set value for INTEGRAL A1 or

10. the actual temperature on the supply pipe is 2°C greater than the calculated supply temperature.

14 .3 Starting hot water production

Heat pump (compressor)

1. The hot water temperature is less than or the same as the set value for START or

2.

hot water temperature within 2°C from the set start value for hot water production at end of heating production and

3. no active alarms that block hot water production.

Auxiliary heat

4. If OUTDOOR STOP is activated, the compressor stops automatically when the outdoor temperature is lower than or the same as the set value, the hot water is then produced by the auxiliary heater.

The auxiliary heater is not normally used to produce hot water but the following exceptions apply for the VL system:

• The auxiliary heater is in operation at the same time as the compressor when hot water production was started.

• Operating mode ADD. HEAT is selected.

• Peak heating charging (legionella function). The auxiliary heater connects 2 minutes after hot water production is started if ADD. HEAT mode is not selected, peak heating charging is not delayed.

VMBMA102 4

14 .4 Stopping hot water production

Heat pump (compressor)

1. When the operating pressure switch has been open (=0) for more than 5 seconds (40 seconds for the first two minutes after start of hot water production) or

2. if the pressure pipe sensor has reached its maximum permitted temperature or

3. the maximum time of 45 minutes has run out, after this time the heating demand is checked for 5 minutes.

Auxiliary heat

For VL systems stop occurs when:

4. operating mode ADD. HEAT is selected and the temperature is the same as the value set for HOT WATER STOP or

5. when AUTO or HOT WATER is selected and the temperature is the same as the set value for HOT WATER STOP and the auxiliary heater produces hot water in cases when OUTDOOR STOP stops or

6. the set value for TOPH.STOP is reached during peak heating charging (legionella function).

4 VMBMA102

15 Troubleshooting

15 .1 Alarm list

Shown in display in the event of an alarm. To reset alarms 1-5, set the operating mode to OFF or cut the power supply.

Message

HIGHPRESS ERROR

LOWPRESS ERROR

MOTOR P ERROR

BRINE OUT

BRINEFLOW LOW

ADD. HEAT

SENSOR OUTDOOR

SENSOR FRONT

SENSOR RETURN

SENSOR HOT WATER

SENSOR DEFROST

MS FAN

SENSOR COOLING

Meaning

Tripped high pressure switch. Compressor stopped. No hot water production.

Tripped low pressure switch. Compressor stopped. No hot water production.

Deployed motor protection (Over current relay compressor). Compressor stopped. No hot water production.

Brine supply does not exceed set temperature. Compressor stopped. No hot water production. Not normally activated.

Flow sensor not active during last start. Compressor stopped. No hot water production.

Overheating protection deployed. No auxiliary heating active.

Fault in outside sensor. Zero degrees used for calculations.

Incorrect supply pipe sensor. Everything stops except circulation pump.

Return sensor fault. Return temperature = Supply pipe – 5 is used. Calculated supply temperature limited to maximum 45°C.

Fault on sensor for start temperature. No hot water production.

Defrost sensor fault. Heat and hot water production is controlled from the outdoor sensor’s value instead. (Applies to DHP-A)

Deployed motor protection for outdoor unit fan. Compressor stopped. No hot water production. (Applies to DHP-A)

Sensor fault. Cooling function stops.

15 .2 Measurement points

Conversion table for sensors

NOTE! When reading the resistance of the sensors, the sensor leads must first be disconnected from the control equipment .

0

5

10

15

-20

-15

-10

-5

20

25

30

35

40

Outdoor sensor

°C kohm

-30

-25

1884

1443

183

150

124

103

86

428

343

276

224

1115

868

681

538

70

75

80

85

50

55

60

65

30

35

40

45

10

15

20

25

90

95

0

5

Other sensors

°C kohm

66,3

52,4

4,2

3,7

3,1

2,7

8,5

7,1

6,0

5,0

18,0

14,8

12,2

10,1

41,8

33,5

27,1

22,0

2,3

2,0

VMBMA102 4

1. First measure the sensor including the cable.

2. Then measure the sensor only.

15 .3 Operational problems

Heat pump in almost continuous operation

Cause

Incorrectly dimensioned 1.

Lack of refrigerant 2.

Increased power output

Higher hot water consumption

3.

Incorrect flow in cold/hot circuit.

Air in the system

Troubleshooting

Check cooling

Changed conditions

(increased power output, increased hot water consumption)

Check refrigerant amount

-

The heat pump has short operating intervals despite heat demand

Cause

Room set point too high.

Curve too high, poor heating system circulation.

Closed radiator valves.

Insufficient water volume in the heating system.

Element too small.

Tight fitting system, poor pipe dimensions.

Troubleshooting

Poor flow, starts on hysteresis value (low water volume)

Poor pipe system

Small radiators

Heat pump too large

-

Heat pump runs on auxiliary heater

Cause

Output demand is too great for the compressor output.

The heat pump produces peak heat.

The compressor cuts in for high return.

The compressor cannot run due to alarm.

1.

2.

3.

4.

5.

6.

7.

Troubleshooting

Is the control computer correctly set (auto curve)

Integral value reached AH start

Max return temperature (high)

Alarm? Indicator RP = 0

HP produces peak heat

Dimensioning / Changed conditions

Incorrect phase sequence compressor

Remedy

Remedy

Remedy

Room set point / curve setting too high

Check sensor (outdoor, supply pipe, room)

Wiring to sensor

Check 3-way valve (insert, motor)

The heat pump has too high energy consumption

Cause

Short active collector

Dry bore hole

Incorrectly set control computer

Incorrect sensor heating contact

Changed conditions

Compressor incorrect phase sequence

High curve

1.

2.

3.

Troubleshooting

Is the control computer correctly set (auto curve)

4.

5.

6.

Integral value reached AH start

Max return temperature (high)

Alarm? Indicator RP = 0

HP produces peak heat

Dimensioning / Changed conditions

Incorrect phase sequence compressor

1. Short active collector

2. Incorrect ∆t on hot/cold side

3. Over heating/cooling

-

Remedy

4 VMBMA102

Auxiliary heater cuts in too soon

Cause

Collector too long.

Collector too short.

Sensor fault.

Incorrect output, insufficient brine.

Changed conditions

1.

2.

3.

4.

Troubleshooting

Is the control computer correctly set (auto curve)

Integral value reached AH start

Max return temperature (high)

Alarm? Indicator RP = 0

5.

6.

HP produces peak heat

Dimensioning / Changed conditions

Incorrect phase sequence compressor

Auxiliary heater runs but not compressor

Cause

Sensor fault.

Final phase of peak heating production.

Alarm.

Operating mode ADD.

HEAT is selected.

Incorrectly set control computer.

Built-in overheating protection (bi-metal protection) in the compressor has tripped.

Troubleshooting

4.

5.

6.

1.

2.

3.

Is the control computer correctly set

Integral value reached AH start

Max return temperature (high)

Alarm? Indicator RP = 0

HP produces peak heat

Dimensioning / Changed conditions

Incorrect phase sequence compressor

Incorrect phase sequence

Cause

Incoming phases are in the incorrect order.

-

Remedy

Troubleshooting

Check pressure pipe temperature.

It should be hot (not just warm) a little way from the compressor.

There is a strange noise (loud, rattling) if the phases are in the incorrect order so that the compressor runs backwards.

Remedy

If the phases are in the incorrect order, switch two incoming phases at the main terminal block.

Pressure switch open = 0

Cause

Hot gas temperature too high

Sensor fault >120 C

Insufficient filling volume

Overheating too high

Troubleshooting

Check sensor

Check over heating

-

Remedy

Remedy

Replace defective sensor.

15 .4 Alarm problems

BRINE LOW FLOW

Cause

Poor flow

Incorrectly connected or incorrectly set flow switch

-

-

-

Troubleshooting

Check flow:

- Is the ground water pump running?

Check flow switch

Calibrating flow switch

System selection in the event of no ground water

Remedy

VMBMA102 4

AH (Auxiliary heater)

Cause

Phase drop

Troubleshooting

Check if the overheating protection has tripped.

No heating system circulation

Overheating protection fault

Check the circulation on the hot side, circ.pump, valves etc.

Supply pipe sensor fault.

Check the sensor.

Tripped before installation

Defective electric heating element

Submersible tube is against the electric coil

Measurement check phase, ground and zero.

Remedy

Resetting overheating protection

Bleeding the heating system.

Check the overheating protection, take readings in/out.

Replace the supply pipe sensor.

Replace the electric heating element if it is broken.

The submersible tube can be prised out slightly from the coils using a screwdriver or similar.

SENSORS (All)

-

Cause

Troubleshooting

Check sensor

Sensor wiring

Remedy

• Replace defective sensors and

/or wiring.

BRINE

Cause

Brine temperature too low.

Defective sensor

Defective circulation pump

Blocked ground water exchanger

Defective ground water pump

Troubleshooting

Check flow:

Is the ground water pump running?

Calibrating flow switch

System selection in the event of no ground water

Remedy

Replace defective sensor.

Replace defective circulation pump.

Clean the ground water exchanger.

Replace defective ground water pump.

0 VMBMA102

HP (High pressure)

Cause

Blocked condenser on gas and/or fluid side.

Shut-off main tap on heating system

Large pressure drop in the heating system

(poor pipes)

Cable break / loose cable to pressure switch

Incorrectly facing nonreturn valve or too

”strong ” valve = incorrect type of valve

Supply pipe sensor fault.

Air in the heating circuit.

Blocked filter.

Operating pressure switch incorrect break value/does not open

Closed radiator thermostats.

Circulation pump defective/jammed.

High pressure switch incorrect break value

Overfilled refrigerant circuit

External system shunt that closes on time setting

Air in the refrigerant circuit

Troubleshooting

Check the flow of the heating system/WH

Are valves open (cond.)

Check the filter

Is the 3-way valve working? (electricity, wiring.)

• Is the circulation pump running (electricity, pump fault, cleaning)

Air in the system

Electricity – check pressure switch (HP 31 bar (e)

(Dp 26.5 bar (e)

Wiring – Check pressure switch

Check refrigerant circuit (over heating)

Check the pressure switch’s break value

Air in the refrigerant circuit.

LP (Low pressure)

Remedy

VMBMA102 1

MOTOR PROTECTION

Cause

Cable break

Phase drop

Uneven load between the phases.

Defective soft start

Defective contactor

Defective or incorrectly set motor protection

Defective compressor

Blown fuses

1.

2.

3.

1.

4.

5.

Troubleshooting

Check fuses

Check phase drop (network supplier)

Uneven load electrical net

Check supply to contactor / motor protection / soft start before and after contactor / motor protection.

Setting motor protection

Check power consumption compressors / impedance winding

Remedy

15 .5 Heating comfort problems

Indoor temperature too high

Cause

3-way valve fault.

Sensor fault outdoor, room, supply pipe.

Adjusting - trimming

Troubleshooting

Check the function of the 3-way valve by test running it manually.

Measure the resistance at the sensors and check against the table in the installation instructions.

Check the room set point and heat curve settings.

Remedy

Replace defective motor or insert.

Replace defective sensor.

Adjust incorrect values in the heat pump’s control computer.

Too low indoor temperature

Cause

Adjusting - trimming

3-way valve only to hot water

Operating conditions curve

Operating mode

Circulation pumps

Troubleshooting

Is the heat pump running? (Current supply fuse)

Room set point / curve setting too low

Check sensor (outdoor, F1, room)

3-way valve (to hw)

Flow:

-

-

Are the circulation pumps running?

closed heating system valves

-

- too few/too small radiators strainers/condenser etc

Operating mode (only HP) (VL / D-system). Check operation of external auxiliary heater.

Changed conditions (modified etc.)

Check which power stage(s) can be used.

Radiator thermostats / valves

Sensor outdoor / room / supply pipe

Dirty capacitor

Dirt in filter ball

Lack of refrigerant

Radiators too small

Heat pump too small

Incorrectly adjusted expansion valve

Changed conditions

Max stage permitted

Remedy

Check the 3-way valve, motor and insert, replace defective/ jammed.

Adjust the settings.

If they are incorrect, replace.

The circulation pumps may have jammed, if so, open the bleed screw and try to release the paddle wheel using a screwdriver for example.

If an external auxiliary heater is used, check that it is correctly installed by test running it in manual mode.

If incorrectly set, adjust in the heat pump’s control computer.

2 VMBMA102

The temperature in the house oscillates between hot and cold

Cause

Adjusting - trimming

Operating conditions curve

Curve adjustment

“buckling”

Troubleshooting

Curve buckling at different outdoor temperatures.

Positioning room sensors and outdoor sensors.

Operating condition Auto / HP / AH in combination with incorrect curve.

House performance.

Remedy

Check that the room sensor is positioned in a suitable place that is representative of the building.

Check that the outdoor sensor is installed according to the instructions.

15 .6 Hot water problems

Temperature and hot water volume too low

Cause

Pressure too high on incoming cold water

3-way valve motor not working

Jammed 3-way valve insert

Air in TWS coil or water heater

Water heater too small

Troubleshooting

Check the water pressure.

Check the function of the 3-way valve by test running it manually.

Start temp. of hot water too high

Check that the start temperature is correctly set. Must/ should not be set above factory setting.

Remedy

Install pressure reduction valve in the system.

If the motor is defective, replace it.

Take out and clean the insert, or replace with a new insert.

Bleed the system (see separate instructions).

Replace with a larger water heater or supplement with electric heater.

15 .7 Leakage problems

Water side

tion

Cause

Defective gasket or Oring

Poorly tightened connections

Cracked nut or connec-

Leak at soldered joints

Troubleshooting

Locate the leak.

Locate the leak.

Locate the leak.

Locate the leak.

Leak at soldered joint on water heater

There is no overflow pipe connected to the safety valve(s).

No condensation hose to heat pump’s drip tray

Poor condensation insulation, cold water pipe and brine pipe

Establish which safety valve does not have an overflow pipe.

Establish where the condensation is coming from.

Remedy

Replace the gasket or O-ring

Tighten the connection and check that it is sealed

If it is still not sealed, replace the entire connection and support sleeve

(only at soft pipes)

Replace nut or connection

Drain the system of fluid, repair the leak. If the leak is on the connection pipe to the exchanger, also drain the refrigerant side.

Replace the hot water heater

Install an overflow pipe according to the applicable norms.

Install the drain hose that runs out into the floor drain.

In the event of problems on the cold water pipes, insulate them.

Condensation often accumulates in joints and angled sections of the insulation. Improve the insulation.

VMBMA102

Cause

Leak at the drain tap at the condenser.

Leak at the bleed valve at the condenser.

Associated leakage on the water heater

Associated leakage in the heat exchanger (condenser).

Filler valve between incoming cold water and heating system not closed.

1.

2.

Troubleshooting

Check that the valve is completely closed.

Check that the sealed cover is sealed.

Check that it is completely closed.

Establish whether water continuously leaks from the safety valve on the expansion vessel on the hot side.

Remedy

If the sealed cover is not sealed, replace the sealed cover or the entire drain tap.

If it is fully closed and still leaks, replace the bleed screw.

Replace the hot water heater

Replace the exchanger

Establish whether water continuously leaks from the safety valve on the expansion vessel on the hot side.

Close the valve.

15 .8 Noise problems

Shrieking whistling noise

Cause

Expansion valve

Non-return valve compressor IPR-valve

Troubleshooting Remedy

Take overheating readings, adjust to the recommended value.

Try opening and closing the valve fully.

Adjust the expansion valve to recommended overheating value again.

If the problem persists, replace the expansion valve.

The IPR valve opens during pressure increases in the compressor. If it remains in the open position, replace the compressor.

Loud compressor noise

Cause

Phase drop

Troubleshooting

Check that there is 400 V between incoming phases on the heat pump.

If there is supply to the heat pump, measure all electrical components all the way to the compressor.

Remedy

If there is correct voltage all the way between phases, replace the compressor.

Touching pipes – vibrations

Compressor fault

Establish which pipe(s) is/are causing the problem. Try to release any tensions that cause the vibrations.

Replace the compressor.

The compressor is incorrectly installed.

Check whether the support sleeve engages the bottom plate. Replace the support sleeve.

Noise in the heating system

Cause

Circulation noise (hissing)

Troubleshooting Remedy

Check the radiator system. Open any valves or choke valves that are causing circulation noises.

Try running the heat pump with a greater delta by reducing the circulation pump’s speed and therefore the system’s flow.

Tensioned flexible hoses Flexible hoses must be installed according to the instructions.

Install flexible hoses according to the instructions.

4 VMBMA102

Cause

Flexible hoses missing

Clicking

Installing / suspending pipes

Troubleshooting Remedy

Flexible hoses must be installed according to the instructions.

Install flexible hoses according to the instructions.

Establish when clicking occurs.

Locate the clicking noises. Try lubricating lead-ins in walls, ceilings and floors with silicone spray.

A surge tank can be installed.

Check if the mountings are too rigid, right type, right sizes or too closely installed.

Noise in the heating system

Cause

Vibrating cables or protective sleeves to the pressure switches.

Troubleshooting

Establish where the vibration noise is coming from.

Remedy

Prevent the insulation sleeve vibrating by using insulation tape for example.

VMBMA102

16 Technical data

Heat pump, DHP-H, DHP-C, DHP-L, size

Refrigerant: - Type

- Amount

- Test pressure

- Safety switch

Compressor, Scroll - Type

El.data 3-N

El .data 1-N

Performance

Nominal flow: 6)

Rated power comp.

kW

Rated power + Aux.

kW 5.7

2 /8.7

3 /11.0

4

Mains supply

Auxiliary heater

Startcurrent

Circuit breaker

Mains supply

Auxiliary heater

Startcurrent

Circuit breaker

- Output capacity 1) kW

- Heat factor 1) COP

- Cooling medium

- Heat medium

Volt kW

A

Volt kW

A l/s l/s

External available pressure 5) - Cooling medium 5) kPa

- Heat medium 5) kPa

2.7

400V 3-N

3/6/9

36

A 1x16A 10

A 1x16A 10

2

36

2

3.2

2.6

0.2

0.1

36

46

/10

230V 1-N

1.5/3/4.5

/10

3

3

/16

Rated power comp.

kW 2.7

Rated power + Aux.

kW 4.2

2 /5.7

3 /7.2

4

/16

4

4

Min/max temperature - Cooling medium

- Heat medium

Pressure switches Low pressure

High pressure

Water Heater Volume 8) kg

MPa

MPa

°C

°C

MPa

MPa l

-4

R407C

0.75

3.2

3.1

Scroll

20/-10

55/20

0.08

2.65/2.85

180

Heat pump, DHP-C_H, size

Refrigerant:

Compressor, Scroll

El.data 3-N

El .data 1-N

Performance

Nominal flow: 6)

- Type

- Amount

- Test pressure

- Safety switch

Min/max temperature - Cooling medium

Pressure switches

- Type

Rated power comp.

Rated power + Aux.

Mains supply

Auxiliary heater

Startcurrent

Circuit breaker

Rated power comp.

Rated power + Aux.

Mains supply

Auxiliary heater

Startcurrent

Circuit breaker

- Output capacity 1)

- Heat factor 1)

- Cooling medium

- Heat medium

- Heat medium

Low pressure

High pressure kg

MPa

MPa

MPa

MPa kW

A kW 2.7

kW 4.2

2 / 5.7

3 / 7.2

4

Volt kW

230V 1-N

1.5/3/4.5

A 36

A 1x16A 10 2 /10 3 /16 4 kW

COP l/s l/s

External available pressure 5) - Cooling medium 5) kPa

- Heat medium 5) kPa

°C

°C

2,7 kW 5.7

2 /8.7

3 /11.0

4

Volt kW

-4H

R134a

0.9

3.2

2.45

Scroll

400V 3-N

3/6/9

36

A 1x16A 10 2

3 .2

2.7

0.2

0.1

/10

49

61

20/-10

55/20

0 .03

1 .8

3 /16 4

Water Heater Volume l 180

-5H

R134a

1.0

3.2

2.45

Scroll

2,0

5.0

2 /8.0

3 /11.0

4

400V 3-N

3/6/9

14

10 2 /16 3 /20 4

3.3

4.8

2 /6.3

3 /7.8

4

230V 1-N

1.5/3/4.5

58

20 2 /25 3 /32 4

4.5

2.9

0.3

0.1

45

60

20/-10

55/20

0 .03

1 .8

180

-6

R407C

1.1

3.2

3.1

Scroll

2.0

5.0

2 /8.0

3 /11.0

4

400V 3-N

3/6/9

14

10 2 /16 3 /20 4

3.3

4.8

2 /6.3

3 /7.8

4

230V 1-N

1.5/3/4.5

58

20 2 /25 3 /32 4

4.9

3.0

0.3

0.1

31

43

20/-10

55/20

0.08

2.65/2.85

180

-8

R 407C

1.3

3.2

3.1

Scroll

2.3

5.3

2 /8.3

3 /11.3

4

400V 3-N

3/6/9

29

10 2 /16 3 /20 4

4.2

5.7

2 /7.2

3 /8.7

4

230V 1-N

1.5/3/4.5

76

25 2 /32 3 /40 4

7.2

3.2

0.5

0.2

33

39

20/-10

55/20

0.08

2.65/2.85

180

-7H

R 134a

1.1

3.2

2.45

Scroll

2,3

5.3

2 /8.3

3 /11.3

4

400V 3-N

3/6/9

29

10/16 3 /20 4

4.2

5.7

2 /7.2

3 /8.7

4

230V 1-N

1.5/3/4.5

76

25 2 /32 3 /40 4

5.5

2.9

0.5

0.2

54

58

20/-10

55/20

0 .03

1 .8

180

-10

R407C

1.4

3.2

3.1

Scroll

3.6

6.6

2 /9.6

3 /12.6

4

400V 3-N

3/6/9

29

16 2 /16 3 /20 4

5.4

6.9

2 /8.4

3 /9.9

4

230V 1-N

1.5/3/4.5

97

32 2 /40 3 /50 4

8.9

3.3

0.6

0.2

67

34

20/-10

55/20

0.08

2.65/2.85

180

-12 7)

R407C

1.6

3.2

3.1

Scroll

-16 7)

R407C

1.7

3.2

3.1

Scroll

4.4

5.6

7.4

2 /10.4

3 /13.4

4 8.6

2/ 11.6

3/ 14.6

4

400V 3-N

3/6/9

32

16 2 /20 3 /25 4

400V 3-N

20 2

3/6/9

45

/20 3 /25 4

5.7

7.2

2 /8.7

3 /10.2

4

230V 1-N

1.5/3/4.5

108

32 2 /40 3 /50 4

*

*

*

*

*

*

10.7

3.2

0.6

0.3

15.2

3.2

0.9

0.4

64

48

20/-10

55/20

0.08

2.65/2.85

180

56

40

20/-10

55/20

0.08

2.65/2.85

180

1) At B0W45 according to EN14511 (including circulation pumps).

2) Heat pump with 3 kW auxiliary heater. (1-N 1.5 kW).

3) Heat pump with 6 kW auxiliary heater. (1-N 3 kW).

4) Heat pump with 9 kW auxiliary heater. (1-N 4.5 kW).

5) Pressure drop that must not be exceeded outside the heat pump without the nominal flow being reduced.

For the brine water circuit these values require a water hose of Ø 40 x 2.4.

6) Nominal flow: Warm side Δ10K Cold side Δ3K.

7) Size is not available for heat pump DHP-C.

8) Available only in DHP-H and DHP-C

* ) Not available in 1-N model.

VMBMA102

Heat pump, DHP-A, size

Refrigerant:

Compressor, Scroll

El.data 3-N

- Type

- Amount

- Test pressure

- Safety switch

- Type

Rated power comp.

Rated power + Aux.

kg

MPa

MPa kW kW

-6

R404A

0.95

3.2

3.1

Scroll

2,0

5 2 /8 3 /11 4 /14 5 /17 6

El .data 1-N

Performance

Nominal flow: 8)

Mains supply

Auxiliary heater

Start current

Circuit breaker

Rated power comp.

Rated power + Aux.

Mains supply

Auxiliary heater

Start current

Circuit breaker

- Output capacity 1)

- Heat factor 1)

- Cooling medium

- Heat medium

External available pressure 7) - Cooling medium 7)

- Heat medium 7)

Min/max temperature

Pressure switches

- Cooling medium

- Heat medium

Low pressure

High pressure

Anti freeze media 9)

Water Heater Volume

Outdoor unit Fan speed, low/high

Air flow low/high rpm m 3 /h l kW

COP l/s l/s kPa kPa

Volt kW

400V 3-N

3 2 /6 3 /9 4 /12 5 /15 6

A 14

A 10 2 /16 3 /20 4 /20 5 /25 6 kW kW

Volt kW

A

A

4.8

230V 1-N

1.5

25

2

2

2

3.3

/6.3

/3

58

/32

3

3

3 /7.8

/4.5

/40

4

4

4

5.7

3.1

1.2

0.5

122

44

°C

°C

MPa

MPa

20/-25

55/20

0,08

2.65/2.85

Ethylene glycol

180

340/575

1600/3000

-8

R404A

1.45

3.2

3.1

Scroll

2,3

5.3

2 /8.3

3 /11.3

4 /14.3

5 /17.3

6

400V 3-N

3 2 /6 3 /9 4 /12 5 /15 6

25

16 2 /16 3 /20 4 /20 5 /25 6

4.2

5.7

2 /7.2

3 /8.7

4

230V 1-N

1.5

2 /3 3 /4.5

4

56

25 2 /32 3 /40 4

7.0

3.1

1.6

0.6

164

41

20/-25

55/20

0,08

2.65/2.85

Ethylene glycol

180

340/575

1600/3000

-10

R404A

1.5

3.2

3.1

Scroll

3,6

6.6

2 /9.6

3 /12.6

4 /

15.6

5 /18.6

6

400V 3-N

3 2 /6 3 /9 4 /12 5 /15 6

29

16 2 /16 3 /20 4 /20 5 /25 6

5.4

6.9

2 /8.4

3 /9.9

4

230V 1-N

1.5

2 /3 3 /4.5

4

97

32 2 /40 3 /50 4

10.6

3.1

2.2

0.8

131

38

20/-25

55/20

0,08

2.65/2.85

Ethylene glycol

180

575/925

3000/4500

1) At B0W45 according to EN14511 (including circulation pumps).

2) Heat pump with 3 kW auxiliary heater. (1-N 1.5 kW).

3) Heat pump with 6 kW auxiliary heater. (1-N 3 kW).

4) Heat pump with 9 kW auxiliary heater. (1-N 4.5 kW).

5) 12 kW auxiliary heater (compressor off).

6) 15 kW auxiliary heater (compressor off).

7) Pressure drop that must not be exceeded outside the heat pump without the nominal flow being reduced.

For the brine water circuit these values require a water hose of Ø 40 x 2.4.

8) Nominal flow: Warm side Δ10K Cold side Δ3K.

9) Do not use propylene glycol or ethanol for DHP-A.

-12

R404A

1.6

3.2

3.1

Scroll

4,4

7.4

2 /10.4

3 /13.4

4 /

16.4

5 /19.4

6

400V 3-N

3 2 /6 3 /9 4 /12 5 /15 6

32

16 2 /20 3 /25 4 /25 5 /25 6

5.7

7.2

2 /8.7

3 /10.2

4

230V 1-N

1.5

2 /3 3 /4.5

4

108

32 2 /40 3 /50 4

10.8

2.9

2.4

1.0

120

52

20/-25

55/20

0,08

2.65/2.85

Ethylene glycol

180

575/925

3000/4500

VMBMA102

Appendix

VMBMA102

VMBMA102

VMBMA102

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