Danfoss DHP-H Quick guide

VMBMA102
Installation and Service
instructions
DHP-H, DHP-C, DHP-L,
DHP-A

VMBMA102

3
VMBMA102
Contents
Installation instructions................ 5
1 Important information/Safety regulations . . . . . . . . . . . . . . . . . . . . . 5
1.1 Refrigerant..........................................................................5
1.2 Electricalconnection................................................................5
1.3 Commissioning .....................................................................5
2 Heat pump information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 DHP-H..............................................................................6
2.2 DHP-C ..............................................................................8
2.3 DHP-L............................................................................. 10
2.4 DHP-A............................................................................ 12
2.5 Heatpumpcontrolpanel.......................................................... 14
2.6 Spacerequirement................................................................ 14
2.7 Recommendedlocation........................................................... 14
2.8 Space requirement around outdoor unit, DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9 Recommended location of outdoor unit, DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Drilling holes for brine pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4 Unpackingandinstallation...................................16
4.1 Settingup ........................................................................ 16
4.2 Removingthefrontcover ......................................................... 17
4.3 Unpacking and installing outdoor unit DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 Installing the stand on outdoor unit DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Installing the defroster sensor, DHP-A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Pipinginstallation...........................................18
5.1 Connection diagram, DHP-H, DHP-C, DHP-A system VL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Connection diagram, DHP-H, DHP-C, DHP-A system D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3 Connectiondiagram,DHP-LsystemVL............................................. 19
5.4 Connectiondiagram,DHP-LsystemD ............................................. 19
5.5 Safetyvalves...................................................................... 20
5.6 Connectingcoldandhotwaterpipes.............................................. 20
5.7 Connecting the heating system supply and return pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.8 Filling the water heater and heating system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.9 Bleedingtheheatingsystem ...................................................... 20
6 ElectricalInstallation ........................................21
6.1 Connecting the power supply, three phase 400V AC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Connecting the power supply, single phase 230V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Connectingtheoutdoorsensor.......................................................
6.4 Changing the language in the control computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.5 Changing the number of auxiliary heating power stages . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.6 Connecting the outdoor unit, DHP-A 6 and DHP-A 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.7 Connecting the outdoor unit, DHP-A 10 and DHP-A 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.8 Connecting the defroster sensor, DHP-A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Brineinstallation............................................23
7.1 Connectiondiagram,DHP-H,DHP-C............................................... 23
7.2 Connectiondiagram,DHP-L....................................................... 23
7.3 Connectiondiagram,DHP-A....................................................... 23
7.4 Installingbrinepipes.............................................................. 23
7.5 Fillingthebrinesystem............................................................ 24
7.6 Bleedingthebrinecircuit.......................................................... 24
8 Installing accessories/additional functions . . . . . . . . . . . . . . . . . . . . 25
8.1 Roomtemperaturesensor......................................................... 25
8.2 EVUfunction...................................................................... 25
8.3 Tariffcontrol ...................................................................... 25
8.4 Flowswitch/levelswitch........................................................... 25
8.5 Higherhotwatertemperature..................................................... 25
9 Startup.....................................................26
9.1 Installationchecklist............................................................... 26
9.2 Manualtest....................................................................... 26
9.3 Installingthefrontcover .......................................................... 27
9.4 Afterstartup...................................................................... 27
10 Handover ...................................................27
10.1 Installation and commissioning carried out by: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Service instructions................... 28
11 Theheatpump..............................................28
11.1 Principlesoffunction.............................................................. 28
11.2 Components...................................................................... 28
11.3 Auxiliary heating, DHP-H, DHP-L, DHP-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11.4 Auxiliaryheating,DHP-A .......................................................... 29
11.5 Waterheater,DHP-H,DHP-C....................................................... 29
11.6 Waterheater,DHP-A............................................................... 30
11.7 Importantparameters............................................................. 30
12 Controlcomputer............................................34
12.1 Functiondescription .............................................................. 34
12.2 Display............................................................................ 35
13 Menus ......................................................37
13.1 MainmenuINFORMATION......................................................... 37
13.2 MainmenuSERVICE............................................................... 40
14 Operatingconditions........................................45
14.1 Starting heat production, DHP-H, DHP-C, DHP-L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
14.2 Stoppingheatproduction......................................................... 45
14.3 Startinghotwaterproduction..................................................... 45
14.4 Stoppinghotwaterproduction.................................................... 45
15 Troubleshooting.............................................47
15.1 Alarmlist ......................................................................... 47
15.2 Measurementpoints .............................................................. 47
15.3 Operational problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
15.4 Alarmproblems................................................................... 49
15.5 Heatingcomfortproblems ........................................................ 52
15.6 Hotwaterproblems............................................................... 53
15.7 Leakageproblems................................................................. 53
15.8 Noiseproblems ................................................................... 54
16 Technicaldata...............................................56
Appendix............................................................58

VMBMA102

5
VMBMA102
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 suf-
ficiently ventilated.
Anyone with symptoms of poisoning from the vapour must imme-
diately 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 refrig-
erant 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 connection
Electrical installation may only be carried out by an authorized elec-
trician and must follow applicable local and national regulations.
The electrical installation must be carried out using perma-
nently 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 con-
nected 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 start-
ed. The heat pump is connected internally at the factory, for
this reason electrical installation consists mainly of the con-
nection 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 tem-
perature sensor!
1.3 Commissioning
The installation may only be commissioned if the heating sys-
tem, 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.
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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 instruc-
tions.
vThe 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 lead-
ins, watertight grommets must be used, for more information see
Section 4.
• In addition to applicable local rules and regulations the installa-
tion should be carried out in a manner that prevents vibrations
from the heat pump being transmitted into the house causing
noise.
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 car-
ried out by authorized persons.
Fire risk
The refrigerant is not combustible or explosive in normal condi-
tions.
Toxicity
In normal use and normal conditions the refrigerant has low toxic-
ity. 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
⚠
⚠
⚠
⚠

6VMBMA102
50
110
1754
455
596
528
300
440
40±10
6
7
549
344
610
327
40
80
74
56
80
1 3 4 5
6
7
8
9
2
7
6
Dimensions and connections
The brine pipes can be connected on either the left or right-hand
sides of the heat pump.
Figure 1: DHP-H, Dimensions and connections.
Position Name
1 Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
2 Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
3 Hot water pipe, 22 Cu or stainless steel
4 Cold water pipe, 22 Cu or stainless steel
5 Expansion pipe, 22 Cu
6 Brine supply pipe (Brine out), 28 Cu
7 Brine return pipe (Brine in), 28 Cu
8 Lead-in for incoming power supply and sensors
9 Lead-in for communication cable
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 con-
tains the following components.
DHP-H, sizes 4kW - 10kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-47054005 1 Safety valve 3 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-55453A00 1 Filling kit DN 25
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 2 Straight connection LK 303 28xR25
9360-51738008 4 Straight compression connection 22 xR20
DHP-H, sizes 12kW - 16kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-47054005 1 Safety valve 3 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-56911A00 1 Filling kit DN 32
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 4 Straight connection LK 303 28xR25
9360-51738008 2 Straight compression connection 22 xR20

7
VMBMA102
9
8
14
1
3
13
12
11
2
19
17
16
10
15
4
5
6
7
18
Left view Front view Right view
Components
Figure 2: DHP-H, components.
Position Name
1 Water heater, 180 litres
2 Return pipe sensor, heating system
3 Evaporator, insulated
4 Exchange valve
5 Supply pipe sensor
6 Heating system circulation pump
7 Auxiliary heating, immersion heater
8 Brine return pipe (Brine in)
9 Heating system supply pipe
10 Brine supply pipe (Brine out)
11 Brine system pump
12 Drying filter
13 Expansion valve
14 Hot water temperature sensor (displays maximum temperature)
15 Control panel for control equipment
16 Electrical panel
17 Compressor
18 Pressure switches
19 Condenser with primary side drain

8VMBMA102
50
110
1754
455
596
528
300
440
40±10
6
7
549
344
610
327
40
80
74
56
80
1 3 4 5
6
7
8
9
2
7
6
Dimensions and connections
The brine pipes can be connected on either the left or right-hand
sides of the heat pump.
Figure 3: DHP-C, Dimensions and connections.
Position Name
1 Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
2 Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
3 Hot water pipe, 22 Cu or stainless steel
4 Cold water pipe, 22 Cu or stainless steel
5 Expansion pipe, 22 Cu
6 Brine supply pipe (Brine out), 28 Cu
7 Brine return pipe (Brine in), 28 Cu
8 Lead-in for incoming power supply and sensors
9 Lead-in for communication cable
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 con-
tains the following components.
DHP-C, sizes 4kW - 10kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-47054005 1 Safety valve 3 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-55453A00 1 Filling kit DN 25
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 2 Straight connection LK 303 28xR25
9360-51738008 4 Straight compression connection 22 xR20

9
VMBMA102
Left view Front view Right view
Components
12
11
17
1
4
16
15
14
2
22
6
5
20
5
6
19
13
18
7
8
9
10
3
21
Figure 4: DHP-C, components.
Position Name
1 Water heater, 180 litres
2 Return pipe sensor, heating system
3 Evaporator, insulated
4 Heat exchanger for cooling operation
5 Exchange valve cooling
6 Shunt cooling
7 Exchange valve, heating/hot water
8 Supply pipe sensor
9 Heating system circulation pump
10 Auxiliary heating, immersion heater
11 Brine return pipe (Brine in)
12 Heating system supply pipe
13 Brine supply pipe (Brine out)
14 Brine system pump
15 Expansion valve
16 Drying filter
17 Hot water temperature sensor (displays maximum temperature)
18 Control panel for control equipment
19 Electrical panel
20 Compressor
21 Pressure switches
22 Condenser with primary side drain

10 VMBMA102
100
1449
455
596
1113
110
310
40±10
5
6
310
110
115
420
610
138
218
378
298
80
1
5
6
5
6
7
8
24 3
Dimensions and connections
The brine pipes can be connected on either the left or right-hand
sides of the heat pump.
Figure 5: DHP-L, Dimensions and connections.
Position Name
1 Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
2 Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
3 Alternative for brine supply
4 Alternative for brine return
5 Brine supply pipe (Brine out), 28 Cu
6 Brine return pipe (Brine in), 28 Cu
7 Lead-in for incoming power supply and sensors
8 Lead-in for communication cable
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 con-
tains the following components.
DHP-L, sizes 4kW - 10kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-47054005 1 Safety valve 3 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-55453A00 1 Filling kit DN 25
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 2 Straight connection LK 303 28xR25
9360-51738008 4 Straight compression connection 22 xR20
DHP-L, sizes 12kW - 16kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-47054005 1 Safety valve 3 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-56911A00 1 Filling kit DN 32
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 4 Straight connection LK 303 28xR25
9360-51738008 2 Straight compression connection 22 xR20

11
VMBMA102
Left view Front view Right view
Components
6
5
1
2
4
10
9
8
3
16
14
13
12
7
7
11
15
Figure 6: DHP-L, components.
Position Name
1 Auxiliary heating, immersion heater
2 Return pipe, heating system
3 Exchange valve
4 Evaporator, insulated
5 Heating system circulation pump
6 Supply pipe sensor, heating system
7 Brine supply pipe (Brine out)
8 Brine system pump
9 Drying filter
10 Expansion valve
11 Control panel for control equipment
12 Brine return pipe (Brine in)
13 Electrical panel
14 Compressor
15 Pressure switches
16 Condenser with primary side drain

12 VMBMA102
Dimensions and connections
The brine pipes can be connected on either the left or right-hand
sides of the heat pump.
Figure 7: DHP-A, Dimensions and connections.
Position Name
1 Heating system return pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
2 Heating system supply pipe, 22 Cu: 4-10 kW, 28 Cu: 12-18 kW
3 Hot water pipe, 22 Cu or stainless steel
4 Cold water pipe, 22 Cu or stainless steel
5 Expansion pipe, 22 Cu
6 Brine supply pipe (Brine out), 28 Cu
7 Brine return pipe (Brine in), 28 Cu
8 Lead-in for incoming power supply and sensors
9 Lead-in for communication cable
10 Expansion outlet brine circuit, R25 int.
Figure 8: Outdoor unit, Dimensions and connections.
Position Name
1 Brine in (HP Brine out) 28 Cu
2 Brine out (HP Brine in) 28 Cu
50
1754
455
596
638
258
250
440
40±10
6
7
549
344
610
327
40
80
74
56
80
1 3 4 5 10
6
7
8
9
2
7
6
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 con-
tains the following components.
DHP-A, sizes 6kW - 10kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-56335001 1 Safety valve 1.5 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-55453A00 1 Filling kit DN 25
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 2 Straight connection LK 303 28xR25
9360-51738008 4 Straight compression connection 22 xR20
DHP-A, size 12kW:
Part no. Quantity Name
9680-5796A00 1 Document kit
9674-57902001 1 Transparent book case
9360-47054001 1 Safety valve 9 bar 1/2”
9588-51618001 1 Kimsafe outdoor sensor 200 035
9360-56335001 1 Safety valve 1.5 bar 1/2”
9674-24735001 1 Expansion and bleed tank without valve
9551-54479001 1 Cardboard packaged top for HP
9360-51759007 1 Compression angle joint 28x28 joint
9674-54168001 1 Pipe insulation IT 9x28
3311-55300001 1 Brine in Cu pipe in TWS packaging
9684-48342001 2 Rubber bellows for 22-32mm hole
9674-54164001 1 Pipe insulation F-54-A D=54x9mm
5211-50730A00 2 Flexible hose R25 L=600
9360-56911A00 1 Filling kit DN 32
9360-52488001 1 Dirt filter with shut-off DN25
9360-51738005 4 Straight connection LK 303 28xR25
9360-51738008 2 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
1175
630
405
1200
1
12
2

13
VMBMA102
Left view Front view Right view
Components
10
14
1
2
3
12
11
13
20
21
18
16
17
9
15
5
6
7
8
19
4
1
2
3
4
5
6
Figure 10: DHP-A outdoor unit, components and connections
Position Name
1 Outdoor unit
2 Stand
3 Cover
4 Connection, brine in
5 Connection, brine out
6 Connection, defrosting outlet
Figure 9: DHP-A, components.
Position Name
1 Water heater, 180 litres
2 Defrosting tank
3 Evaporator, insulated
4 Exchange valve, defrosting
5 Exchange valve, heating system
6 Supply pipe sensor
7 Heating system circulation pump
8 Auxiliary heating, immersion heater
9 Brine system pump
10 Brine return pipe (Brine in)
11 Drying filter
12 Expansion valve
13 Brine supply pipe (Brine out)
14 Hot water temperature sensor (displays maximum temperature)
15 Control panel for control equipment
16 Electrical panel
17 Heating system supply pipe
18 Compressor
19 Pressure switches
20 Condenser with primary side drain
21 Return pipe sensor, heating system

14 VMBMA102
2.6 Space requirement
To facilitate the installation and subsequent testing and mainte-
nance 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 12: Necessary service space.
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 car-
ried 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 adjust-
able feet so that it is horizontal to the base.
⚠
2.5 Heat pump control panel
The heat pump control panel consists of a display, four control but-
tons and an indicator.
Figure 11: Display, control buttons and indicator for the heat pump.
The control computer is controlled using a user-friendly menu sys-
tem, 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 instruc-
tions.
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
1905 1620
DHP-H
DHP-C
DHP-A
DHP-L
The symbols in the display are
only examples. Certain sym-
bols cannot be displayed at
the same time.
ROOM 20°C
NO DEMAND HEAT
OPERAT. AUTO

15
VMBMA102
300 mm
300 mm
300 mm
1500 mm
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.
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 spe-
cific direction.
Noise is produced from the outdoor unit when the fan is in
operation, remember this when positioning to reduce distur-
bance 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.
⚠
⚠
⚠
⚠
⚠
⚠

16 VMBMA102
4 Unpacking and installation
4.1 Setting up
• The heat pump has feet that can be adjusted 20 mm to compen-
sate 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 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.
3 Drilling holes for brine pipes
NOTE! Ensure that the holes for the insert pipes are posi-
tioned 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 instruc-
tions below.
Figure 15: Drilling holes for brine pipes.
Position Name
1 Insert pipe
2 Brine pipe
3 Mortar
4 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).
⚠
⚠

17
VMBMA102
4.2 Removing the front cover
NOTE! Do not damage the electrical wiring for the control sys-
tem when the front cover is removed!
To install the heat pump the front cover must be removed.
Figure 18: Removing the front cover.
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.
4.4 Installing the stand on outdoor unit DHP-A
Figure 19: Stand for outdoor unit DHP-A.
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.
⚠
1
2
3
2
Figure 20: Installing the outdoor unit on the stand.
3 There are two pre-drilled holes in the bottom plate of the out-
door unit where the stand is screwed into place with 2 screws
per side.
4 Hook the cover onto the stand.
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.

18 VMBMA102
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 appli-
cable local rules and regulations. The hot water tank must be
equipped with an approved safety valve (supplied).
5.1 Connection diagram,
DHP-H, DHP-C, DHP-A system VL
Figure 21: General connection diagram heating system for DHP-H, DHP-C, DHP-A,
system VL.
Position Name
1 Supply pipe
2 Return pipe
3 Safety valve (9 bar)
4 Safety valve (not included)
5 Expansion
6 Strainer
7 Flexible hoses
8 Vacuum valve
9 Non-return valve
10 Shut-off valve
11 Non-return valve
12 Shut-off valve
13 Hot water
14 Cold water
15 Heat pump
⚠
⚠
⚠
5.2 Connection diagram,
DHP-H, DHP-C, DHP-A system D
Figure 22: General connection diagram heating system for DHP-H, DHP-C, DHP-A,
system D.
Position Name
1 Supply pipe
2 Return pipe
3 Safety valve (9 bar)
4 Safety valve (not included)
5 Expansion
6 Strainer
7 Flexible hoses
8 Vacuum valve
9 Non-return valve
10 Shut-off valve
11 Non-return valve
12 Shut-off valve
13 Hot water
14 Cold water
15 Heat pump
16 External auxiliary heater
17 Circulation pump
18 Non-return valve
19 Moved supply pipe sensor
RUM 20C
INGETBEHOV VÄRME
DRIFTAUTO
1
3
4
5
6
7
89 10
11 12
13
14
15
2
RUM 20C
INGETBEHOV VÄRME
DRIFTAUTO
1
16
17
18
19
3
4
5
6
7
89 10
11 12
13
14
15
2

19
VMBMA102
5.3 Connection diagram, DHP-L system VL
Figure 23: General connection diagram heating system for DHP-L, system VL.
Position Name
1 Supply pipe
2 Return pipe
3 Safety valve (9 bar)
4 Safety valve (not included)
5 Expansion
6 Strainer
7 Flexible hoses
8 Vacuum valve
9 Non-return valve
10 Shut-off valve
11 Cold water
12 Hot water
13 Heat pump
14 Water heater
5.4 Connection diagram, DHP-L system D
Figure 24: General connection diagram D heating system.
Position Name
1 Supply pipe
2 Return pipe
3 Safety valve (9 bar)
4 Safety valve (not included)
5 Expansion
6 Strainer
7 Flexible hoses
8 Vacuum valve
9 Non-return valve
10 Shut-off valve
11 Cold water
12 Hot water
13 Heat pump
14 Water heater
15 External auxiliary heater
16 Circulation pump
17 Non-return valve
18 Moved supply pipe sensor
RUM 20C
INGETBEHOV VÄRME
DRIFTAUTO
1
3
4
5
6
7
7
89 10
12
11
13 14
2
RUM 20C
INGETBEHOV VÄRME
DRIFTAUTO
3
4
5
6
7
7
89 10
12
11
13 14
18
1
15
16
17
2

20 VMBMA102
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 connec-
tions.
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.
5.8 Filling the water heater and heating sys-
tem
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.
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 neces-
sary 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 sys-
tem and brine system sides. Flexible hoses can be purchased from
Thermia Värme AB. Figures 12-15 show how appropriate and inap-
propriate 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 25: Do not twist the flexible hoses as they are installed. At threaded con-
nections, use a counterhold spanner.
Figure 26: Cut the hose to the correct length to avoid excess bowing-out or
stretching at bends.