Danfoss | Heat Pump | Technical data | Danfoss Heat Pump Technical data

Installation instructions
Danfoss heat pump
DHP-R
VMBMD302
Table of contents
DHP-R
1
Important information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1
1.2
1.3
2
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Noise and vibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Heat pump information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
2.3
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pipe connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Required service space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Drilling holes for brine pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
Unpacking and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1
5
Piping installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1
5.2
6
Brine pipes and expansion tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filling the coolant system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.1
9
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting pump hot gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting sensor for outside temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting hot water sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting sensor for system supply temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting external start brine pump (passive cooling option) . . . . . . . . . . . . . . . . . . . . . . . . . .12
Connecting exchange valve for hot water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting room sensor (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting pressure and/or flow switch (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting start/stop auxiliary heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting external buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting system pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting control signal for ­auxiliary heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Locations of the switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Conversion table for sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Brine installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.1
7.2
8
Safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Heating system supply pipe and return pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
6.14
6.15
7
Removing the front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installing the front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9.1
Installation and commissioning carried out by: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
VMBMD302
3
1
Important information
⚠⚠This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
⚠⚠Children should be supervised to ensure that they
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 Heat Pumps are
void if, when filling with refrigerant other than R407C or
R134a, it has not been notified in writing that the new
refrigerant is an approved replacement refrigerant together with other remedies.
do not play with the appliance.
⚠⚠The installation must only be carried out by an
authorized installer with reference to applicable
rules and orders and these installation instructions.
⚠⚠The heat pump must be located in a frost-free environment!
⚠⚠The floor must be able to support the gross weight
of the heating installation.
⚠⚠The heating installation must be placed on a stable
surface.
⚠⚠Before the heat pump is supplied with voltage you
must ensure that the heating system and coolant
system, incl. the heat pump, are filled and bled of air
otherwise the circulation pumps can be damaged.
⚠⚠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 transfer fluid
and coolant pumps have been disconnected.
⚠⚠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 coolant pump can then be run manually using
a separate switch which is located on the electrical
cabinet.
⚠⚠When filling is complete the coolant pump must be
put in Auto mode.
1.1
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.
Refrigerant
The heat pump’s cooling system (refrigerant circuit) is
filled with R407C or R134a (depending on version) refrigerant.
Work on the refrigerant circuit must only be carried
out by a certified engineer!
Fire risk
R407C/R134a are 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.
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.
Scrapping
When the heat pump is to be scrapped the refrigerant
must be extracted for destruction. The local regulations
for treatment of refrigerant must be followed. See the relevant Swedish Environmental Protection Agency refrigerant statutes.
1.2
Noise and vibrations
From the sound and vibration point of view it is important
that the pipe mountings in the ceiling and walls are made
with vibration damping fastenings and that the holes for
lead-ins in the walls are made as large as possible so that
sound and vibration do not spread.
If the house has poor acoustics, special care must be taken
so that the vibrations do not spread into the building.
In such cases no mountings may be made in the house
near the heat pump. All mountings must be in free standing constructions, which themselves are in vibration
damping material such as Solodyn.
In those cases where the coolant side must be mounted
to the building, flexible hoses should be used, although
not the same type as the heat transfer pipes. Flexible
hoses for the heat transfer and hot gas must be extra long
(600 mm or longer) and connected at 90°. If one suspects
that the floor on which the heat pump is located may
transfer vibration to the rest of the building, the heat
pump must be positioned on Solodyn pads. These pads
must be weight adapted. Always consult the representative from Danfoss Heat Pumps in these cases.
VMBMD302
5
1.3
Electrical connection
⚠⚠The electrical installation must 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 for the intended
current. For information regarding maximum load
for externally connected devices, see electrical installation instructions.
NOTE! The supplied language specific decal for electrical
connection must be adhered to the inside of the door
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 internally connected at
the factory.
Important information
⚠⚠24 VAC 1 must not be connected together with:
• 24 VAC 2
• 24 VDC
• Other equipment that uses 0-10V control signal
• Signal ground GND
⚠⚠24 VAC 2 must only be used as power supply to:
• External equipment that requires 0-10V control
signal
• Auxiliary modules
The
⚠⚠ two separate 24 VAC circuits must never be connected to each other or to protective ground.
⚠⚠The total power load on 24 VAC 1 respectively 24
VAC 2 must not exceed 50VA.
6
VMBMD302
2
Heat pump information
2.1
Components
9
5
4
10
6
11
17
3
16
15
13
18
7
8
1
12
2
20
1 Coolant out (from HP)
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 HP)
7 Lead-in for communication cable
8 Lead-in for incoming supply and sensor
9 Supply pipe sensor
10 Condenser with draining for prim. side.
14
19
11 Evaporator
12 Return sensor
13 Compressor
14 Instrument panel
15 Electrical cabinet
16 De-superheater
17 Drying filter
18 Expansion valve
19 Condenser circulation pump
20 Coolant pump
VMBMD302
7
2.2
Pipe connections
Connection diameter
300 mm
Brine
Heat
De-superheater
DHP-R 20
35
28
28
DHP-R 26
42
28
28
DHP-R 35
42
35
28
DHP-R 42
42
35
28
DHP-R 21H
35
28
28
DHP-R 25H
35
28
28
300 mm
50 mm
1490 mm (with
support legs at
highest level)
500 mm
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. See the figure
below for an example on 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.
2
1
3
4
5
6
6
5
4
600 mm
The figure above shows dimensions for one (1) installed
heat pump and the necessary service space.
Required service space when installing several heat
pumps in a row.
1. Coolant out (from HP)
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 HP)
500 mm
3
150 mm
1
2
500 mm
2.3
Required service space
To facilitate installation and later tests and maintenance
there must be sufficient free space around the heat pump
according to the following dimensions:
When installing several heat pumps, the dimensions
behind the heat pumps may need to be increased if there
is not enough side space. The pumps must be set-up so
that the installation can be accessed from behind.
150 mm
150 mm
300 mm
8
VMBMD302
3
Drilling holes for brine pipes
4
• Make holes in the walls for the entry pipes (1) for the
coolant pipes. Follow the dimensions and connection
diagrams on pages 7-8.
• The output and input coolant pipes must have wall lead-ins.
• If there is a risk of infiltration by ground water, special
lead-ins must be used.
• Install the entry pipes (1) so that they incline slightly downwards. The incline should be at least 1 cm per 30 cm.
Cut them at an angle (as illustrated) so that rain water
cannot get into the pipes.
• Ensure that the entry pipes are at the correct distance so
that there is room for the other installations.
• Insert the brine pipes (2) into the insert pipes in the
installation room.
• Fill in the holes in the wall with mortar (3).
• Ensure that the brine pipes (2) are centred in the insert
pipes (1) so that the insulation is distributed equally on
all sides.
• Seal the insert pipes (1) with a suitable sealant
(foam) (4).
Unpacking and installation
The heat pump is packed in boxes and wrapped in cardboard and delivered on a wood pallet.
• Check that the delivery is complete and undamaged.
⚠⚠NOTE! 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.
•
•
•
•
•
Move the heat pump to the installation site.
Cut off the straps and remove the packaging.
Lift the heat pump from the pallet.
Install a condensation drain if required.
Adjust using the adjustable legs (5) so that it stands
upright and level on the floor.
2
5
5
4.1
1
Removing the front cover
Remove the front cover plate as follows:
• Unscrew the screws (1).
• Slide the front cover (2) upwards and carefully lift it off
upwards and forwards.
• Place the front cover next to the heat pump.
2
1
VMBMD302
9
5
Piping installation
5.2
⚠⚠To prevent leaks ensure that there are no stresses in
the connecting pipes!
• Ensure that the pipe installation is carried out in accordance with the dimensions and connection diagrams.
• Pipe installation must be carried out by an authorized installer.
⚠⚠ NOTE! It is extremely important that the heating system is completely bled.
⚠⚠ NOTE! Bleed valves must be installed where necessary.
5.1
Heating system supply pipe and return
pipe
• Install a filter (max mesh size 0.7 mm) in the heating
system’s return pipe to protect the unit against foreign
particles.
• Install the supply line with all the accompanying components.
• Install a suitable circulation pump in the heating system
supply pipe and connect the pump’s control cable to
the relevant terminal block (see separate wiring diagram).
• Install the return line with all the accompanying components.
• Insulate the supply and return pipes.
Safety valve
Radiator systems with closed expansion tanks must also
be supplied with approved pressure gauge and safety
valve.
⚠⚠NOTE! The heat pump must be connected to the
expansion tank and the safety valve according to
applicable regulations.
The connecting lines 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.
Additional shunt
(0-10V)
Heating system
TWC Communication
CW
HW
Hot water
HWC
HWH
HWH
HWH
HWH
Hot gas circuit
TWC = Tap Water Control
CW = Cold water
HW = Hot water
HWC = Hot water circulation
Brine
HWH = Hot water heater
Example of system solution for DHP-R with several water heaters.
10
VMBMD302
6
Electrical Installation
6.1
Electrical connection
⚠⚠The electrical installation must 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 for the intended
current. For information regarding maximum load
for externally connected devices. see electrical installation instructions.
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 internally connected
at the factory. The electrical installation therefore
mainly covers the following points:
K1
K2
F10
F11
F1
F2
Contactor compressor
Contactor brine pump
Over current relay compressor.
Over current relay brine pump
Fuse brine pump
Control fuse regulation. overheating protection
compressor
F3 Control fuse condensation pump
F100 Fuse 24 VAC 1
F101 Fuse 24 VDC
F102 Fuse 24 VAC 2
X1 Terminal blocks for incoming supply and temperature sensor as well as terminal blocks for external
components
T1 Transformer 24 VAC 2x50 VA
E1 WM HPC
E2 HPC RM
6.2
Connection to the power supply
• Remove the front cover from the heat pump.
• Pull the power supply cable through the opening in the
rear of the heat pump to the terminal blocks.
• Connect the supply cable to the designated terminal
block.
See separate manual for the control system.
⚠⚠ Note that the power supply cable must only be connected to the intended terminal block. No other terminal blocks may be used!
Pump hot gas
Connect the hot gas pump to the designated terminal
block. 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.
6.3
Incoming cable control circuit
NOTE! The bridge is
removed in the event
of separate control
Incoming cable
Connecting pump hot gas
Connecting sensor for outside temperature
Sensor outdoor
PT1000
circuit.
Bridged at delivery
Electrical cabinet layout
T1
E1
E2
K2
K1
F1
F11
F10
F2
F3
F100
F101
F102
X1
Position the outdoor sensor on the north or north west
facing side of the house. away from direct sunlight. 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 indoor air.
• Remove the rear piece from the heat pump.
• Route the outdoor sensor’s connecting cable through
the opening in the rear of the heat pump up to the connecting block.
• Connect the sensor to the designated terminal block.
See separate manual for the control system.
⚠⚠Note that the outdoor sensor is connected with
extra low protection voltage.
Also follow the applicable installation instructions for outdoor sensors!
VMBMD302
11
6.4
Connecting hot water sensor
• Auxiliary modules
⚠⚠The two separate 24 VAC circuits must never be connected to each other or to protective ground.
Hot water sensor
PT1000
Connect the hot water sensor to the designated terminal
block. The sensor should be positioned a third way up
from the bottom in the water heater which is supplied with
incoming cold water.
See separate manual for the control system.
6.5
6.9
Connecting pressure and/or flow
switch (option)
Any Pressure
switch brine
Flow switch
(option)
The system supply sensor must always be installed on the
system’s supply pipe after the auxiliary heater. The sensor
must be positioned so that the heated water has been able
to mix properly.
See separate manual for the control system.
Connecting external start brine pump
(passive cooling option)
Any passive cooling
brine pump
NOTE! Bridge
removed at pressure switch brine
Flow switch
Bridged at delivery
Connect the pressure and/or flow switch for the brine side
to the intended terminal block 123-124 at the same time
as removing the bridge. When using both the pressure and
flow switch. these must be connected in series.
See separate manual for the control system.
6.10 Connecting start/stop auxiliary heater
Any Start/
stop auxiliary
heater
Start/stop auxiliary heating connected to terminal block
133-134 (24 VAC)
See separate manual for the control system.
Potential free connection between terminal blocks 127128 that start the brine pump. This function can be used
for passive cooling from the brine circuit. Connect to the
incoming brine pipe.
See separate manual for the control system.
6.7
VAC 2 must not exceed 50VA.
Connecting sensor for system supply
temperature
Sensor system supply temperature
PT1000
6.6
⚠⚠The total power load on 24 VAC 1 respectively 24
6.11 Connecting external buzzer
Any external
buzzer 24 VAC
Active alarm produces 24 VAC out on terminal block 135136.
See separate manual for the control system.
Connecting exchange valve for hot
water
6.12 Connecting system pump
Exchange valve
System pump
See separate manual for the control system.
6.8
Start/stop of the house system pump 24 VAC.
See separate manual for the control system.
Connecting room sensor (option)
6.13 Connecting control signal for ­auxiliary
heater
Sensor room 0-10 V
(option)
• Remove the front cover from the heat pump.
• Route the room sensor’s connecting cable through the
opening in the rear piece up to the connecting block.
• Connect the sensor to the designated terminal block.
See separate manual for the control system.
⚠⚠ Note that the room sensor’s connecting voltage is
extra low protection voltage. Also note that this is an
active sensor supplied with 24 VAC.
⚠⚠24 VAC 1 must not be connected together with:
• 24 VAC 2
• 24 VDC
• Other equipment that uses 0-10V control signal
• Signal ground GND
⚠⚠24 VAC 2 must only be used as power supply to:
• External equipment that requires 0-10V control
signal
12
Analogue control
signal for auxiliary
heater
See separate manual for the control system.
⚠⚠24 VAC 1 must not be connected together with:
• 24 VAC 2
• 24 VDC
• Other equipment that uses 0-10V control signal
• Signal ground GND
⚠⚠24 VAC 2 must only be used as power supply to:
• External equipment that requires 0-10V control
signal
• Auxiliary modules
⚠⚠The two separate 24 VAC circuits must never be connected to each other or to protective ground.
⚠⚠The total power load on 24 VAC 1 respectively 24
VMBMD302
VAC 2 must not exceed 50VA.
6.14 Locations of the switches
7
Brine installation
7.1
Brine pipes and expansion tank
• Install a filter (max mesh size 0.7 mm) in the input coolant pipe to protect the unit against foreign particles.
• Install the input coolant pipe with all the accompanying
components.
• Install the output coolant pipe with all the accompanying components.
• Supply both the pipes with diffusion sealed condensation insulation.
• The expansion vessel for the coolant is sized according
to the manufacturer’s instructions.
• Max operating pressure heat source (see manufacturer’s
plate). Max 3 bar.
Auto
S1
Auto
Off
S2
7.2
Auto
S3
Off
Filling the coolant system
⚠⚠WARNING! Ethylene glycol and ethanol must be han-
Off
dled according to the instructions on the packaging!
Manual
Manual
S1 Switch compressor. (Auto/Off )
S2 Switch coolant pump. (Auto/Off/Manual)
NOTE! Must only be used in manual position when filling the system or other maintenance/service work.
S3 Switch circulation pump. (Auto/Off/Manual)
1
3
2
6.15 Conversion table for sensors
°C
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
6
ohm
882
921
960
1000
1039
1078
1117
1155
1194
1232
1270
1309
1347
1385
1422
1460
1497
When reading the resistance of the sensors, the sensor
leads must first be disconnected from the control equipment.
First measure the sensor including the cable.
Then measure the sensor only.
4
5
1
2
3
4
5
6
7
8
Connect the hose from the filler pump to valve 1.
Connect the return hose to valve 2.
Close valve 3.
Open valves 1 and 2.
Mix coolant in container 4.
Ensure that the heat pump is not powered.
Start filling pump 5.
When the coolant flows out of the return hose the
internal coolant pump is bled inside the heat pump.
9 Set switch marked S1 in position Off. (Compressor
Auto/Off )
10 Switch on the heat pump’s safety switch.
11 Set switch marked S2 in position Manual. (Brine pump
Auto/Off/Manual)
12 Then let both the pumps operate until there is no air
mixture left in the circuit.
VMBMD302
13
13 Stop both the pumps and immediately close valve 1
and 2.
14 Open valve 3 and disconnect the filling hoses.
15 Open valve 6 and pressurise the system, and vent via
valve 1. Pressurise to max 1.5 bar.
16 Close valve 6.
17 Set switch S1 and S2 to Auto
(compressor and brine pump).
18 Clean the strainers after filling.
8
Start up
⚠⚠The installation may only start operation if the heating system, any hot water tanks and the coolant
circuit are filled. Otherwise the pumps can be damaged.
In addition, the following points must be checked before
starting operations:
• Check the rotation direction of the coolant pump. This is
most easily done by setting switch S2 to manual. There
is an indicator lamp, under the cover of the coolant
pump connection terminal box, which lights when the
rotation direction is correct.
• Check that all connections are sealed.
• Check the compressor’s direction of rotation by starting the compressor and feel by hand if the pressure line
(upper pipe) is warm and the suction line (lower pipe) is
cold.
• If this is not the case, two of the phases in the power
supply must be switched (for example L1 and L3).
• Adapt the factory settings to the customer requirements.
8.1
Installing the front cover
⚠⚠ Take care not to damage the front cover!
2
1
Install the front cover as follows:
• Align the upper section of the front cover (2) in both the
side channels on the unit and slide it carefully downwards until it covers the entire front side.
• Tighten the screws (1).
14
VMBMD302
9
Handover
9.1
Installation and commissioning carried out by:
As user please ensure that the installer fills in the following information to facilitate servicing.
PIPE INSTALLATION
Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Name . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel. No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ELECTRICAL INSTALLATION
Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel. No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SYSTEM ADJUSTMENT
Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Name . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel. No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VMBMD302
15
10 Troubleshooting
Alarm
In the event of an error message try restarting the installation using the reset button on the control panel.
If restarting the heat pump does not help try rectifying the problem using the table below.
Message
Meaning
Cause
Remedy
LOW PRESS
ERROR
Low pressure
error - The compressor stops
and there is no
hot water production.
Not enough anti-freeze in the
coolant system. Air in the brine
system. Blocked filter in the
brine system.
Fill the refrigerant with the correct
percentage of anti-freeze and bleed
using the safety valve on the volume
container. Check if the strainer needs
cleaning.
Coolant pump has stopped or
is running at slow speed.
Take temperature difference
readings between incoming and
outgoing coolant. The difference
should be between approximately
3-5°C.
Ice build up in the coolant
system.
Measure the amount of anti-freeze
in %, wait until the ice melts, which
affects the low pressure switch not
contacting the wiring.
Underfilled cooling system or
any leaks.
Drain and leak trace as well as filling
new refrigerant. No refilling of drained medium.
Blocked or filled drying filter in Measure the temperature difference
the cooling circuit.
of the filter – max 2°C.
HIGH PRESS
ERROR
MOTOR P
ERROR
High pressure
error - The compressor stops
and there is no
hot water production.
Motor protection error - (Over
current relay
compressor or
brine pump).
The compressor
stops and there
is no hot water
production.
Insufficiently opened radiator/
floor loop thermostats. Air in
the heating system. Blocked
strainer in the heating system,
located in the heat pump
return.
Open radiator / floor loop thermostats. Fill and bleed the heating
system. Measure delta over the
heat pump supply and return lines.
Temperature difference.
Overfilled refrigerant circuit.
Draining the refrigerant circuit and
refilling with new refrigerant, according to the instructions.
Heat transfer fluid pump has
stopped or is running at slow
speed.
Check the heart transfer fluid pump.
Phase drop or blown fuse.
Check the fuses and cable terminals
(power supply to the compressor or
brine pump).
Poorly tightened electrical
connections.
Check the electrical connections.
Too low network voltage.
Measure the voltage to the heat
pump’s electrical connection.
Other alarms;
See separate manual for the control system.
16
VMBMD302
11 Technical data
Brine to water heat pump
Refrigerant
DHP-R
Type
Amount
kg
20
26
35
42
21H
25H
R407C
3,4
R407C
3,5
R407C
3,6
R407C
4,2
R134a
2,7
R134a
2,9
Test pressure
MPa
3,4
3,4
3,4
3,4
3,4
3,4
Design pressure
MPa
2,95
2,95
2,95
2,95
2,45
2,45
Scroll
POE
Scroll
POE
Scroll
POE
Scroll
POE
Scroll
POE
Scroll
POE
400
11,7
400
14,2
400
17,9
400
14,2
400
17,9
Compressor
Type
Oil
Electrical data
3-N~50Hz
Main supply
Rated power compressor
Volt
kW
400
8,6
Rated power, circ.pumps
kW
0,9
1,4
1,4
1,4
0,9
0,9
Start current
kW
99
127
167
198
167
198
106
Start current, soft starter
A
69
82
96
106
96
Circuit breaker
A
25
25
35
35
35
35
Heating capacity 1
COP 1
kW
18,2
3,73
24,5
3,70
32,8
3,81
38,4
3,53
20,2
3,74
24,2
3,71
Heating capacity 2
COP 2
kW
17,6
23,2
30,3
36,8
20,1
23,9
3,09
3,03
3,11
2,91
3,22
3,18
Power input 1
kW
4,9
6,6
8,6
10,9
5,4
6,5
Nominal flow 3
Cooling circuit 4
Heating circuit
l/s
l/s
1,2
0,5
1,6
0,6
2,2
0,8
2,4
1,0
1,2
0,5
1,5
0,6
External available pressure 5
Cooling circuit
Heating circuit
kPa
kPa
133
63
162
54
130
47
127
48
129
62
96
60
Internal pressure drop
Condenser
kPa
11
4
6
4
kPa
5
37
9
Evaporator
50
58
53
41
49
De-superheater
kPa
0,4
0,5
0,8
1,3
0,4
0,5
C
o
C
20/-10
60/20
20/-10
60/20
20/-10
60/20
20/-10
60/20
20/-10
70/20
20/-10
70/20
Performance 7
Max/min temperature 8
Cooling circuit
Heating circuit
Pressure switches
Low pressure
Operating
MPa
MPa
0,08
2,65
0,08
2,65
0,08
2,65
0,08
2,65
0,03
2,00
0,03
2,00
High pressure
MPa
2,95
2,95
2,95
2,95
2,45
2,45
Water volume
Condensor
Evaporator
l
5,4
6,0
6,7
4,9
5,4
l
5,4
3,4
3,8
5,6
5,1
2,9
3,2
De-superheater
l
0,6
0,6
0,6
0,6
0,6
0,6
Ethylene glycol/
Ethanol
Ethylene glycol/
Ethanol
Ethylene glycol/
Ethanol
Ethylene glycol/
Ethanol
Ethylene glycol/
Ethanol
Ethylene glycol/
Ethanol
o
Anti freeze media
1
1
1
1
1
1
Dimensions LxWxH
Weight
mm
kg
690x596x1490
297
690x596x1490
300
690x596x1490
312
690x596x1490
330
690x596x1490
314
690x596x1490
314
Sound power level 6
dB(A)
55
58
61
61
64
63
Number of units
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)
At B0W35 according to EN14511. (including circulation pumps).
2)
At B0W45 according to EN14511. (including circulation pumps).
3)
Nominal flow: heating circuit Δ10K, cooling circuit Δ3K.
4)
Anti-freeze in cooling circuit: Ethanol-water.
5)
At nominal flow.
6)
Sound power level measured according to EN ISO 3741 at BOW45 (EN 12102).
7)
The values apply to a new heat pump with clean heat exchangers.
8)
It is important to note that not all cooling circuit temperatures and heating circuit temperatures can
be combined. To see the operating map of the heat pump, please see VFBMF DHP-R Technical data
VMBMD302
17
If these instructions are not followed during installation,
operation and maintenance Danfoss Heat Pumps’ liability
according to the applicable warranty is not binding.
Danfoss Heat Pumps AB • Box 950 • SE-671 29 Arvika
www.danfoss.com
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