Danfoss DHP-S&DP User manual

Installation instruc-
tions
DHP-S&DP
VMIFJ102

If these instructions are not followed during installation and serv-
ice,DanfossA/Sliabilityaccordingtotheapplicablewarrantyisnot
binding. Danfoss A/S retains the right to make changes to com-
ponents and specifications without prior notice.
© 2010 Copyright Danfoss A/S.
The Swedish language is used for the original instructions. Other
languages are a translation of original instructions.
(Directive 2006/42/EG)

Contents
1 About the instructions..................................................................... 3
1.1 Introduction..................................................................................... 3
1.2 Symbols............................................................................................. 3
1.3 Terminology..................................................................................... 3
2 Important information..................................................................... 4
2.1 Refrigerant........................................................................................ 4
2.2 Noise and vibrations..................................................................... 5
3 Heat pump information................................................................... 9
3.1 Dimensions and components................................................... 9
3.2 Pipe connections......................................................................... 10
3.3 Required service space.............................................................. 10
3.4 Technical data............................................................................... 11
4 Drilling holes for brine pipes....................................................... 13
5 Unpacking and installation.......................................................... 14
5.1 Setting up....................................................................................... 14
5.2 Removing the front cover......................................................... 14
6 Piping installation........................................................................... 16
6.1 Safety valve.................................................................................... 16
6.2 Heating system supply pipe and return pipe.................... 16
6.3 System suggestion...................................................................... 17
7 Electrical Installation...................................................................... 18
7.1 Electrical connection.................................................................. 18
7.2 Connecting pump hot gas....................................................... 18
7.3 Connecting sensor for outside temperature..................... 19
7.4 Connecting hot water sensor.................................................. 19
7.5 Connecting sensor for system supply temperature........ 19
7.6 Connecting exchange valve for hot water......................... 19
7.7 Connecting room sensor (option)......................................... 19
7.8 Connecting pressure and flow sensor (option)................ 19
7.9 Connecting start and stop auxiliary heater........................ 19
7.10 Connecting control signal for auxiliary heater............... 19
7.11 Conversion table for sensors................................................. 19
8 Test operation................................................................................... 21
8.1 Installation checklist................................................................... 21
8.2 Manual test.................................................................................... 22
9 Start up................................................................................................ 25
9.1 Adaptation to the heating system......................................... 25
10 Installing the front cover............................................................ 26
11 Menu information......................................................................... 27
11.1 SERVICE menu............................................................................ 28
11.2 Important parameters............................................................. 36
12 References....................................................................................... 41
VMIFJ102 – 1

1 About the instructions
1.1 Introduction
The installation instructions start by describing heat pump data. The installation instructions later give instructions
in a logical order covering unpacking, installation procedure, and checking the installation.
References to chapters and sections within the instructions are in italics, e.g.: About the instructions.
References to menu options in the heat pump’s control system are in upper case, e.g.: INFORMATION ->OPERAT. ->
AUTO.
All figures in the instructions are numbered to help installers and service technicians refer to them easily.
1.2 Symbols
The instructions contain different warning symbols, which, together with text, indicate to the user that there are risks
involved with actions to be taken.
The symbols are displayed to the left of the text and three different symbols are used to indicate the degree of danger:
DANGER! Hazardous electrical voltage!Indicates an immediate danger that leads to fatal or serious injury if
necessary measures are not taken.
Warning! Risk of personal injury!Indicates a possible danger that can lead to fatal or serious injury if necessary
measures are not taken.
Caution! Risk of installation damage. Indicates a possible hazard that can lead to item damage if necessary
measures are not taken.
A fourth symbol is used to give practical information or tips on how to perform a procedure.
Note!Informationregardingmakingthehandlingof the installationeasierora possible operationaltechnical
disadvantage.
1.3 Terminology
The instructions contain terms throughout that designate components and functions. The table lists the most com-
mon terms that are used in the instructions.
Table 1. Terminology
Term Meaning
Heating system The circuit that generates heat to the property or to the water heater.
Supply line The heating system’s supply line with flow direction from the heat pump to radiators/
under floor heating or water heater.
Return line The heating system’s return line with flow direction from radiators/under floor heating or
water heater to the heat pump.
Circulation pump Circulation pump for heating system.
Refrigerant circuit The energy carrying circuit between the outdoor air and heating system.
Refrigerant The gas/liquid that circulates in the refrigerant circuit.
Installation instructions VMIFJ102 – 3

4 – Installation instructions VMIFJ102
2 Important information
Caution! The heat pump must be located in a frost-free environment!
Caution! The installation may only be commissioned if the heating system is filled and bled. Otherwise
the circulation pump can be damaged.
Caution! If the electrician wishes to test his connections before the above is carried out, this should only
done when it has been checked that the heat pump, the electric boiler, the compressor and the heat
shields are disconnected.
Caution! When filling the coolant system the coolant pump must be operating but one must ensure that
the compressor and the heat transfer pump cannot start.
The system can be considered maintenance free but certain checks are necessary.
Before changing the control computer’s settings, first find out what these changes mean.
Contact your installer for any service work.
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a safe way and understand the hazards
involved. Cleaning and user maintenance shall not be made by children without supervision.
Note! Children are not permitted to play with the apparatus.
2.1 Refrigerant
The heat pump’s cooling system (refrigerant circuit) is filled with R410A refrigerant.
Caution! Work on the refrigerant circuit must only be carried out by a certified engineer!
Caution! Fire risk R410A 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 refrig‐
erant is low, it can cause injury (or be highly dangerous) in abnormal circumstances or where deliberately abused.
The refrigerant vapour is many times heavier than air and in enclosed spaces, below the level of the door for
example, and in the event of leakage, large concentrations can occur with the risk of suffocation because of lack
of oxygen. Spaces in which heavy vapour can collect below the level of the air must therefore be well ventilated.
Note! This appliance is intended to be used by expert or trained users in shops, in light industry and on
farms or commercial use by lay persons.
Only spare parts approved by us may be used in this appliance.
Caution! The power supply must be disconnected during service and before changing parts in the
appliance.

Warning! Risk of personal injury! 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.
Warning! Risk of personal injury! Anyone with symptoms of poisoning from the vapour must immediately
move or be moved into the fresh air.
Work on the refrigerant circuit
Whenrepairingthe refrigerant circuit, the refrigerant mustnotbe 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. Filling with refrigerant other than R410A voids all guar-
antees from Thermia Värme AB, unless this new refrigerant has been approved in writing as an alternative refrigerant
together with other corrective action.
Scrapping
When the heat pump is to be scrapped the refrigerant must be extracted for disposal. The local regulations for
treatment of refrigerant must be followed. See the relevant Swedish Environmental Protection Agency refrigerant
statutes.
2.2 Noise and vibrations
2.2.1 Flexible hoses
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. We recommend that flexible hoses are used
forallpipe connections to avoid the transmissionof vibrations. Flexible hoses are availabletopurchase as accessories.
The figures below show how appropriate and inappropriate installations look using this type of hose.
Installation instructions VMIFJ102 – 5

To avoid noise caused by pipe mounting, a rubber-coated pipe clamp should be used to prevent the transmission
of vibrations. However, installation should not be too rigid and the pipe clamp must not be too tight.
Figure 1. Do not twist the flexible hoses as they are installed. At threaded connections, use a counterhold spanner
Figure 2. Cut the hose to the correct length to avoid excess bowing-out or stretching at bends
Figure 3. Cut the hose to the correct length to avoid excess bowing-out or stretching and offset the ends so that the hose
is installed completely straight.
Figure 4. Use fixed pipe bends to avoid excess stress on bends next to connections
2.2.2 Preventative measures
Some of the following points can also be used when troubleshooting.
•Do not install heat pumps on walls adjoining bedrooms.
6 – Installation instructions VMIFJ102

•Ensure that all pipes are elastically suspended, with mountings as illustrated or similar. This is so that the rubber
(or similar material) compresses 1 to 2 mm under vibration. It is not recommended to suspend the pipes from
too many points, as the force at each mounting is then not sufficient.
Figure 5. Elastic pipe suspension.
•If the heat pump is located indoors and the ceiling in the area is unsuitable to suspend the aforementioned pipe
mountings, set up (or construct) special stands on the floor from which the pipes can be suspended.
•Ensure that pipe lines do not lie against walls that they run along and that foam insulation is wrapped around
the entire pipe, not just on top of it.
•Pipes inside the heat pump must not be against each other (if they are, clamp and secure suitable rubber, pulling
the pipes apart by hand only helps temporarily).
•If the heat pump is on an unstable surface, position rubber feet designed for its weight underneath.
•If necessary, use rubber straps to secure flexible hoses in position, so that they do not lie against each other or
create vibration bridges.
•Ensure that electrical wiring is not put under strain, if it is it creates vibration bridges.
•If possible, install the heat pump in a location that is sound insulated from areas that are frequented by residents.
Soundproofing measures to carry out afterwards:
•Go through the aforementioned points and improve if possible.
•Hood for compressor (most effective for high frequencies).
•Improve the acoustic environment of the heat pump by installing acoustic panels on the walls and ceiling.
•In some instances, it is recommended that the heat pump is moved to another area.
2.2.3 Electrical connection
Caution! Electrical installation may only be carried out by an authorized electrician and must follow
applicable local and national regulations.
Caution! 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.
For information regarding maximum load for externally connected devices, see electrical installation instructions.
Installation instructions VMIFJ102 – 7

Electrical current!
DANGER! 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 internally connected
at the factory.
8 – Installation instructions VMIFJ102

3 Heat pump information
3.1 Dimensions and components
Figure 6. Measurements
Figure 7. Components
Symbol explanation
1 Coolant out (from heat pump)
2 Heat return (return line)
3 Return line hot-gas exchanger
4 Supply line hot-gas exchanger
5 Heat supply (supply line)
6 Coolant in (to heat pump)
7 Lead-in for communication cable
8 Lead-in for incoming supply and sensor
9 Supply line sensor
10 Condenser with draining for primary side
11 Evaporator
12 Return sensor
13 Compressor
14 De-superheater
15 Drying filter
16 Expansion valve
17 Heat transfer fluid pump
18 Coolant pump
Installation instructions VMIFJ102 – 9
14
19
15
12
16
13
17
10
149,5
239
811,5
1054,5
1194
1250
106
175,5
81,5
74,5
165,5
455
596
690
1488 (±10)
40 ±10
11
18
9
7
4
3
5
82
6
1

3.2 Pipe connections
Table 2. Connection diameter
Size Brine Heat De-superheater
DHP-S Eco 22 35 28 28
DHP-S Eco 26 35 28 28
DHP-S Eco 33 42 35 28
DHP-S Eco 42 42 35 28
When installing in confined spaces, pipe routing on the rear of the heat pump can be facilitated by connecting the
pipes before the pump is put in position. The following figure shows an example of how the pipes can be routed.
Note! Remember not to tighten the pipes in the heat pump’s panel casing as this transfers vibrations causing
noise problems.
Symbol explanation
1 Coolant out (from the heat pump)
2 Heat return (return line)
3 Return line hot-gas exchanger
4 Supply line hot-gas exchanger
5 Heat supply (supply line)
6 Coolant in (to the heat pump)
3.3 Required service space
To facilitate the installation and subsequent testing and maintenance there must be sufficient free
10 – Installation instructions VMIFJ102

space around the heat pump in accordance with the following dimensions:
300
50
500
300
600
Figure 9. Service space
3.4 Technical data
Table 3. Technical data
Thermia Heat Pumps reserves the right to make changes without fur ther notice. 130923_ R_ENG
The measurements are performed on a limited number of heat pumps which
can cause variations in the results. Tolerances in the measuring methods can
also cause variations.
1) B0/W35, According to EN14511 incl. circ.pump.
2) Nominal flow heating circuit ∆10K , cooling circuit ∆3K.
3) Anti-freeze in cooling circuit: Ethanol-water.
4) At nominal flow.
5) Please note that not all cooling circuit temperatures and heating
temperatures can be combined.
6) Min. incoming cooling circuit temperature 0°C.
7) Sound power level measured according to EN 12102 and EN ISO 3741 at B0W35
8) Always check local rules and regulations before using antifreeze.
DHP-S Eco 22 26 33 42
Refrigerant Type R410A R410A R410A R410A
Amount kg 3.8 3.9 4.5 4.6
Test pressure MPa 4.5 4.5 4.5 4.5
Design pressure MPa 4.3 4.3 4.3 4.3
Compressor Type Scroll Scroll Scroll Scroll
Oil POE POE POE POE
Electrical data
3-N
Main supply Volt 400 400 400 400
Rated power, compressor
Rated power, circulationpumps
kW
kW
9,91
0.5
12,40
0.5
14,83
0.6
19,12
0.6
Start current A 21.7 23.8 32.2 37.1
Fuse A 20 25 32 32
Performance COP1
Heating capacity1
Electrical power1
kW
kW
4.40
21.9
5.0
4.40
25.4
5.8
4.37
33.5
7.7
4.31
41.4
9.6
Nominal flow 2Cooling circuit3l/s 1.4 1.5 2.1 2.4
Heating circuit l/s 0.5 0.6 0.8 0.9
External available
pressure drop4
Cooling circuit kPa 81 75 73 63
Heating circuit kPa 75 70 66 50
Internal pressure drop Condenser
Evaporator
kPa
kPa
2.3
23.8
6.6
27.0
5.0
33.0
16.0
37.0
Maximum system pressure Brine
Heat transfer fluid
bar
bar
6
6
6
6
6
6
6
6
Min/max temperature5Cooling circuit °C 20/-10 20/-10 20/-10 20/-10
Heating circuit6°C 65/20 65/20 65/20 65/20
Pressure switchesLow pressure
Operating
MPa
MPa
0.35
4.0
0.35
4.0
0.35
4.0
0.35
4.0
High pressure MPa 4.3 4.3 4.3 4.3
Sound power level 7dB (A) 55 55,2 56,4 56
Anti freeze media Ethanol+water solution -17°C ± 28
Weight kg 225 241 262 271

R410A
T brine °C T water °C
20 65
0 65
-5 60
-10 54
-10 20
5 20
20 30
0
10
20
30
40
50
60
70
-15 -10 -5 0 5 10 15 20 25
Twater °C
Tbrine °C
Min/Max Operation Temperature R410A

4 Drilling holes for brine pipes
Caution! Ensure that the holes for the insert pipes are positioned so that there is room for the other
installations.
Caution! The brine pipes shall have separate lead-ins. If the wall lead-ins are below the highest ground water
level watertight lead-ins must be used.
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.
1
1
2
3
3
4
Figure 10. Making holes
Symbol explanation
1 Insert pipe
2 Brine pipe
3 Mortar
4 Sealant
1. Drillholesinthewallfortheinsertpipes (1) for the brine pipes. Follow the dimension and connection diagrams.
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 around the lines 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).
Installation instructions VMIFJ102 – 13

5 Unpacking and installation
The heat pump is packed in boxes and wrapped in cardboard and delivered on a wood pallet.
1. Check that the delivery is complete and undamaged.
Caution! When moving the heat pump, do not use the protruding pipe connections to lift the heat pump.
The packaging should not be used to lift the heat pump either.
5.1 Setting up
1. Move the heat pump to the installation site.
2. Cut off the straps and remove the packaging.
3. Lift the heat pump from the pallet.
4. Install a condensation drain if required.
1
Figure 11. Make sure that the heat pump is level
using a spirit level
Symbol explanation
1 Adjustable feet
5. Adjust using the adjustable legs (1) so that the heat pump stands upright and level on the floor.
5.2 Removing the front cover
Remove the front cover plate as follows:
1. Unscrew the screws (1).
2. Slide the front cover (2) upwards and carefully lift it off upwards and forwards.
3. Place the front cover next to the heat pump.
14 – Installation instructions VMIFJ102

2
1
Figure 12. Remove the front
cover
Symbol explanation
1 Screws
2 Front panel
Installation instructions VMIFJ102 – 15

6 Piping installation
Caution! To prevent leaks ensure that there are no stresses in the connecting lines!
Note! Ensure that the pipe installation is carried out in accordance with the dimensions and connection
diagrams.
Note! Pipe installation must be carried out by an authorized installer.
Caution! It is important that the heating system is bled after installation.
Caution! Bleed valves must be installed where necessary.
6.1 Safety valve
Note! The heat pump must be connected to the expansion tank and the safety valve according to applicable
regulations. The connection between the reservoir and the safety valve must be routed in a continuous
incline. A continuous upwards slope means that the pipe must not slope downwards from the horizontal at
any point.
Caution! The brine circuit must be filled with the correct amount of fluid otherwise the installation may
become damaged. Ensure that system has the necessary pressure, however, not above maximum pressure
of 6bar.
Caution!Heatingsystemswithclosed expansion tanks must also be supplied with approved pressure gauges
and safety valves.
6.2 Heating system supply pipe and return pipe
1. Install a filter (max mesh size 0.7 mm) in the heating system’s return pipe to protect the unit against foreign
particles.
2. Install the supply line with all the accompanying components.
3. Install the return line with all the accompanying components.
4. Insulate the supply and return lines.
16 – Installation instructions VMIFJ102

6.3 System suggestion
50
72 36 51
117
83
80
77
86
97
8684
111
80 92
1
90
34
91
53
55
82 81
19
115
112
84 83 82 31
82 83
88
19
75
Figure 13. System suggestion
Symbol explanation
1 Heat pump 82 Adjustment valve
19 Water heater 83 Non-return valve
31 Circulation pump (VVC) 84 Pressure gauge
34 Circulation pump, (hot gas) 86 Safety valve
36 Circulation pump (system) 88 Valve pipe (cold water)
50 Outdoor sensor 90 Dirt strainer (hp)
51 System supply line sensor 91 Dirt strainer (hot gas)
53 Hot water sensor start 92 Dirt strainer (heat transfer fluid)
55 Hot water sensor top (Installed in the heater that is hottest) 97 Flexible hose
75 Mixer valve 111 Venting and expansion tank (heat transfer fluid)
77 Reversing valve 112 Expansion vessel (closed)
80 Shut-off valve 115 Immersion heater
81 Filler valve 117 Auxiliary heat
A heat pump can produce both heat and hot water. With an external auxiliary heater (oil boiler, electric boiler, district
boiler or similar) heat production is supported but not hot water production. The exchange valve for heating and
hot water is located ahead of the external auxiliary heater, which allows the production of heating and hot water at
the same time. The heat pump control computer also controls an additional shunt located after the external addition.
The SERVICE menu selects AUX. HEATER, EXT.AUX.HEATER. Default setting is:
•EXT.AUX.HEATER = ON
•REV.V. HOT WATER = INT
When an oil boiler is used as addition, the after burning time is activated to 60 minutes.
The SERVICE menu selects AUX. HEATER, EXT.AUX.HEATER, TURN OFF DELAY, 60M
Installation instructions VMIFJ102 – 17

7 Electrical Installation
7.1 Electrical connection
Caution! Electrical installation may only be carried out by an authorized electrician and must follow
applicable local and national regulations.
Caution! 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.
DANGER! 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 internally connected
at the factory.
1. Remove the front cover from the heat pump.
2. Pull the power supply cable through the opening in the rear of the heat pump to the terminal blocks.
3. Connect the supply cable to the designated terminal blocks.
See separate manual for wiring diagram.
DANGER! Electrical current! The power cable may only be connected to the terminal block intended for this
purpose. No other terminal blocks may be used!
Electrical cabinet layout
K2
K1
F10
F11
X1
F0 F3 F4 1E1
1
F1
Figure 14. Electrical cabinet
Symbol explanation
K1 Contactor compressor
K2 Contactor brine pump
F10 Over current relay compressor.
F11 Over current relay brine pump
F1 Fuse brine pump
F0 Control fuse regulation, overheating
protection compressor
F3 Control fuse heat addition
F4 Control fuse Oil and Electricity
X1 Terminal blocks for incoming supply
and temperature sensor as well as ter-
minal blocks for external components
1 Space for extra board
7.2 Connecting pump hot gas
1. Connect the hot gas pump to the designated terminal blocks. The voltage is 230 VAC. The pump is designed
to be placed outside the heat pump casing and must be connected with flexible hoses.
This pump runs in parallel with the compressor.
See separate manual wiring diagram.
18 – Installation instructions VMIFJ102