alphainnoTec WZSV 42K3M User manual
UK
83072100aUK
Brine/Water Heat Pumps
Brine heat station
Operating Manual
WZSV 42K3M
2Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
Table of contents
1 About this operating manual ...................... 3
1.1 Validity....................................................... 3
1.2 Reference documents............................... 3
........ 3
1.4 Contact...................................................... 4
2 Safety ............................................................... 4
2.1 Intended use ............................................. 4
............................ 4
2.3 Personal protective equipment ................. 4
............................................ 5
2.5 Disposal .................................................... 5
2.6 Avoid damage to property......................... 5
3 Description...................................................... 6
3.1 Layout ....................................................... 6
3.2 Accessories............................................... 8
3.3 Function .................................................... 8
4 Operation and care....................................... 9
4.1 Energy and environmentally aware
operation ................................................... 9
4.2 Maintenance.............................................. 9
5 Delivery, storage, transport and
installation ....................................................... 9
5.1 Scope of supply ........................................ 9
5.2 Storage.................................................... 10
......................... 10
5.4 Installation................................................11
6 Installation and connection....................... 12
6.1 Dismantle the module box ...................... 12
6.2 Install the module box............................. 14
6.3 Install the hydraulic connections............. 14
6.4 Connect the electrical cables.................. 15
6.5 Installing the control panel ...................... 16
...................... 17
7.1 Remove the front panel of
the module box........................................ 17
............... 17
7.3 Vent the circulation pump of
the heat source ....................................... 18
domestic hot water charging circuit......... 19
.................... 20
8 Insulate hydraulic connections ................ 20
................................ 20
10 Commissioning ............................................ 21
11 Maintenance................................................. 22
11.1 Basic principles....................................... 22
11.2 Maintenance as required ........................ 22
condenser ............................................... 22
11.4 Yearly maintenance................................. 22
12 Faults.............................................................. 22
..... 22
. 23
13 Dismantling and Disposal......................... 23
13.1 Dismantling ............................................. 23
13.2 Disposal and Recycling........................... 23
.................. 23
Technical data / Scope of supply................... 24
Performance curves.......................................... 25
Dimensional drawings....................................... 26
WZSV 42K3M................................................... 26
Control unit....................................................... 27
...................................................... 27
Installation plans................................................. 28
Installation plan 1 ............................................. 28
Installation plan 2 ............................................. 29
Installation plan 3 ............................................. 30
Hydraulic integration.......................................... 32
Keys hydraulic integration ................................ 33
Terminal diagram................................................ 34
Circuit diagrams.................................................. 35
3
Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
1 About this operating manual
This operating manual is part of the unit.
operating manual carefully and follow it for all
activities at all times, especially the warnings and
safety instructions.
Keep the operating manual to hand at the unit and
hand over to the new owner if the unit changes
hands.
If you have any questions or anything is unclear,
factory's customer service.
Note and follow all reference documents.
1.1 Validity
This operating manual refers solely to the unit
“Rating
1.2 Reference documents
The following documents contain additional information
to this operating manual:
Planning & design manual, hydraulic integration
Operating manual of the heating and heat pump
controller
Brief description of the heat pump controller
Operating manual of the expansion board
manufacturer
contact with the manufacturer or the local partner of
the manufacturer.
1.3
Symbol Meaning
Safety-relevant information.
Warning of physical injuries.
DANGER Indicates imminent danger resulting
in severe injuries or death.
WARNING Indicates a potentially dangerous
situation, which can result in severe
injuries or death.
CAUTION Indicates a potentially dangerous
situation, which can result in
moderate or minor injuries.
IMPORTANT Indicates a potentially dangerous
situation, which can result in
property damage.
Symbols in the document
Symbol Meaning
Information for the owner/operator
Requirement for action
Procedural instructions:
Single step action prompt
1., 2., 3., … Procedural instructions:
Numbered step within a multi-step
action prompt. Keep to the given
order.
Additional information, e.g. a tip on
standards
Reference to further information
elsewhere in the operating manual
or in another document
Listing
Secure connections against twisting
4Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
1.4 Contact
Addresses for purchasing accessories, for service
cases or for answers to questions about the unit and
this operating manual can be found on the internet at
Germany: www.alpha-innotec.de
EU: www.alpha-innotec.com
2 Safety
Only use the unit if it is in proper technical condition
and only use it as intended, safely and aware of the
hazards, and follow this operating manual.
2.1 Intended use
The unit is designed for household use and is solely
intended for the following purposes:
Heating
Domestic water heating
Cooling
Proper use includes complying with the operating
“Technical data / Scope of supply”,
noting and following the reference documents.
When using the local regulations note: laws,
standards, guidelines, directives.
All other uses of the unit are not as intended.
2.2
The operating manuals supplied with the product are
intended for all users of the product.
The operation of the product via the heating and he-
-
tended for end customers / operators is suitable for all
age groups of persons who are able to understand the
activities and the resulting consequences and can car-
ry out the necessary activities.
Children and adults who are not experienced in hand-
ling the product and do not understand the necessa-
ry activities and the resulting consequences must be
instructed and, if necessary, supervised by persons
experienced in handling the product and who are re-
sponsible for safety.
Children must not play with the product.
All procedural instructions in this operating manual is
injuries and damage to property.
Ensure that the personnel are familiar with the lo-
cal regulations, especially those on safe and haz-
-
electronics.
Heating engineers
Plumbers
During the warranty and guarantee period, servicing
and repairs may only be carried out by personnel au-
thorised by the manufacturer.
2.3 Personal protective equipment
cuts due to the sharp edges of the unit.
Wear cut-resistant protective gloves.
foot injuries.
Wear safety shoes.
Wear safety goggles.
5
Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
2.4
Components in the unit are live with life-threatening
Disconnect unit from power supply.
Residual voltage at the inverter. Wait for 90
seconds before opening the unit.
Existing earthing connections within housings or on
mounting plates must not be altered. If this should ne-
vertheless be necessary in the course of repair or as-
Restore earthing connections to their original con-
Injuries caused by high temperatures
explosive atmospheres
Constituents of antifreeze mixtures, e.g. ethanol,
atmosphere:
Mix antifreeze in well-ventilated rooms.
comply with the relevant safety regulations.
Injuries and environmental damage due to
refrigerant
-
explosion:
1.
2. Thoroughly ventilate installation room.
3. Keep the unit away from ignition sources.
4. Notify authorised customer service.
2.5 Disposal
Batteries
environment.
compatible way according to the local regulations.
Media harmful to the environment
Improper disposal of environmentally harmful media
Collect media safely.
Dispose of the media in an environmentally com-
patible way according to the local regulations.
2.6 Avoid damage to property
Decommissioning/draining the heating
If the system/heat pump is decommissioned or drained
the condenser and any heat exchangers have been
drained completely for the event of freezing temper-
atures. Residual water in heat exchangers and con-
densers can result in damage to the components.
Completely drain the system and the condenser,
and open vent valves.
Blow them clear with compressed air, if required.
Improper action
Requirements for minimum scale and corrosion
damage in hot water heating systems:
Proper planning, design and start-up
Closed system with regard to corrosion
Integration of adequately dimensioned pressure
retention
water corresponding to VDI 2035 only
Regular servicing and maintenance
If a system is not planned, designed, started up and
operated according to the given requirements, there is
Malfunctions and the failure of components, e.g.
pumps, valves
exchangers
components, e.g. heat exchanger, pipes, pumps
Material fatigue
Gas bubbles and gas cushion formation
6Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
coatings, deposits, and associated noises, e.g.
Note and follow the information in this operating
water in the heating circuit
generator and the heating components depend
decisively on the quality of the heating water.
calcium precipitates as scale. Limescale deposits
form on the heat transfer surfaces of the heating. The
cases the heat exchangers are damaged.
Fill the system with deionised heating water
Unsuitable quality of the water in the domes-
Ensure that the electrical conductivity of the
Unsuitable quality of the water or the water-
antifreeze mixture in the heat source
-
-
mitted
For operation of the heat source with water or a
water-antifreeze mixture, ensure that the water
water side.
Using groundwater
If using groundwater install an intermediate ex-
changer.
3 Description
3.1 Layout
NOTE
This section essentially names the
described in this operating manual.
Housing with unit components
12
10
6
1
11
3
4
57
8
2
9
2 Heating circuit/hot water circulation pump
3 Heating element
4 3-way switching valve, heating circuit/
domestic hot water
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5 Valve motor
6 Position of rating plate
8 Venter
9 Electrical switch cabinet
11 Module box
Rating plate
Rating plates are attached to the following places on
the unit:
at the top of the heating station
left-hand side, on the module box
The rating plate contains the following information at
the top:
Unit type, product number
Serial number, unit index
The rating plate also contains an overview of the most
important technical data.
Module box
6
7
1
3
10
4
11
29
12
8
5
1 Compressor
2 Heating exchanger
3 Condenser
4 Inverter
7 Evaporator
8 Switching valve for the cooling circuit, with
valve motor
9 Heat source circulation pump
NOTE
The hose connectors are not part of the
scope of delivery with all KFE ball valves.
8Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
Control unit
31 2
1 Control panel
Underside of the control panel
2 41 3
1 Connection room control unit
3 Connection LIN bus to the regulator board
4 RJ45 connection not assigned
3.2 Accessories
The following accessories are available for the unit
through the manufacturer's local partner:
if the control is mounted on the wall
Room thermostat for switching the cooling
function
Dew point monitor for protecting a system with
Expansion board
Installation IPSW 1"-28
devices for the heating circuit and for the
Air / magnetic sludge separator
3.3 Function
energy for this process is environmental heat and
borehole heat exchanger or groundwater via
to rise and therefore the temperature too. The
Here the high temperature is discharged to the heating
water and is used in the heating circuit. The liquid
refrigerant with high pressure and high temperature
temperature drop and the process begins again.
Due to the integrated switching valve and the integrated
water can be used for charging the domestic hot
water or for heating the building. The temperatures
required and use are controlled by the heat pump
controller. Reheating, drying out screed or increasing
the domestic hot water temperature can be carried out
using the integrated electric heating element, which
is activated by the heat pump controller as and when
necessary.
pump does not switch to high-pressure fault if all
heating circuits are closed. The integrated vibration
isolators for the heating circuit and heat source
prevent structure-borne sound and vibrations from
into the building.
Cooling
The cooling function has the following options
operating manual of the heating and heat pump
Control of the cooling function via the heating and
heat pump controller
Automatic switching between heating and cooling
mode
9
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The control can be connected to a computer or
pump controller can then be controlled from the
4 Operation and care
NOTE
The unit is operated via the control of
the heating and heat pump controller
operating manual of the heating and heat
4.1 Energy and environmentally
aware operation
The generally accepted requirements for energy-
aware and environmentally-aware operation of a
heating system also apply to use of a brine/water heat
pump. The most important measures include:
No unnecessarily high domestic hot water
Do not open windows with gap /tilt open
4.2 Maintenance
Wipe down the outside of the unit only using a damp
abrasive, acid or chlorine-based cleaning products.
5 Delivery, storage, transport
and installation
IMPORTANT
Damage to the housing and the unit components
due to heavy objects.
Do not place any objects on the unit.
5.1 Scope of supply
NOTE
On delivery the accessories are enclosed in
outwardly visible damage and completeness.
Notify supplier of any defects immediately.
3 of this manual
mounting the control unit
Safety valve, outdoor sensor
Replacement material after dismantling the
module box:
10 Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
5.2 Storage
directly before installation.
Store unit protected against:
Moisture/damp
Frost
Dust and dirt
5.3
NOTE
The module box can be removed for transport
Notes on safe transport
The heating station and the module box are
“Technical data / Scope of supply”, from
property if the housing with the unit components falls
or overturns or if the module box falls.
The heating station and module box must be
transported and installed by several persons.
Secure the heating station during transport. Carry
the module box by the carrying lugs.
of the unit.
Wear cut resistant protective gloves.
The hydraulic connections are not designed for
mechanical loads.
Do not lift or transport the unit by the hydraulic
connections.
If the module box is tilted by more than 45°, compressor
oil runs into the cooling circuit.
Do not tilt the unit with installed module box by
more than 45°.
alternatively with a handcart.
Transport the unit to the place of installation
NOTE
and dismantling the housing panels.
1.
damage the unit.
2.
way according to local regulations.
3.
front panel in the place of installation.
Dismantle housing panels for transport with
handcart or carrying the unit
To avoid damage to the housing panels:
1. Undo 2 screws at the bottom of the front panel.
Lift up the front panel and put it down in safe
place.
2. Undo 3 screws at the right panel.
Lift up the side panel and put it down in safe place.
3. Undo 3 screws at the left panel.
Lift up the side panel and put it down in safe place.
2.
1.
3.
8x
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Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
Transport with a handcart
NOTE
If transporting with a handcart the module
box must be pushed in.
shows transporting the unit on its left-hand
side; it can also be transported on its right-
hand side.
Housing panels are dismantled.
To avoid damage: On a handcart, load the unit on its
side only.
≤ 45°
Transport unit on the handcart.
Carrying the unit
Housing panels are dismantled.
1. “Dismantle the module
to the place of installation.
2. Carry the housing with the unit components
separately to the place of installation.
5.4 Installation
Installation room and space requirements
NOTE
Note and follow the local regulations and
standards regarding the installation room
and space requirements. The table shows
the regulations as per EN 378-1 relevant in
Germany.
Refrigerant Limit [kg/m³]
R 134a 0.25
R 404A 0.52
R 407C 0.31
R 410A 0.44
R 448A 0.39
R 454B 0.059
“Technical data / Scope of supply”, from
page 24
Minimum room volume =
NOTE
If several heat pumps of the same type are
installed only one heat pump need to be
pump with the largest refrigerant volume
Minimum volume corresponds to the require-
ments for the refrigerant used.
Installation inside the building only.
Installation room is dry and frost-free.
“Installation
unit:
level and horizontal
load-bearing capacity for the unit's weight
Aligning the unit
Align the unit horizontally and stably in the
installation site using the height-adjustable feet
and a spanner size SW 13. Adjustment range:
25 mm.
12 Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
6 Installation and connection
6.1 Dismantle the module box
IMPORTANT
If the module box is tilted by more than 45°,
compressor oil runs into the cooling circuit.
Do not tilt the module box by more than 45°.
NOTE
If necessary the module box can be
dismantled for easier transport of the unit
or for service reasons.
Steps 1 to 5 are only required if the module
1. Remove the front panel of the module
“7.1 Remove the front panel of
2.
heating.
NOTE
The hose connectors are not part of the
scope of delivery with all KFE ball valves.
3.
heat source.
4. Disconnect the electrical connections:
Disconnect 2 white connectors (①) at the bot-
tom of the electrical control cabinet. To do this,
release the lugs by pressing on the sides of
the connectors
(②) at
the top of the module box
2
1
5. Remove the insulation (③) on the hydraulic con-
nections.
3
6. ④
4
13
Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
7. Use spanner size SW 37 to unscrew the heating
⑤
5
8. Disconnect the hydraulic connections; to do this,
⑥
6
9. Remove the 2 side retaining screws.
10. (⑦)
more easily: place boards (8) under it, e.g. from
7
8
11. Lift and hold nut (⑨)
10
9
12. Slowly and carefully pull out the module box by
the carrying lugs (⑩). Ensure that none of the
pipes are damaged
13. Pull out the module box completely and place it
on the boards.
14 Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
6.2 Install the module box
1. Place the module box carefully in the bottom of
the heating station and slowly and carefully push
it in.
Lift up pipes so that they do not get damaged
2. Attach the two side retaining screws.
3. Connect the hydraulic connections. At the
same time, replace O-rings on the heat pump
4. Perform pressure test and insulate pipes with the
5. Connect the electrical cables:
Plug in 2 white connectors at the bottom of the
electrical control cabinet. Ensure that the con-
nectors move easily and the lugs latch into po-
sition
top of the module box
6.3 Install the hydraulic connections
IMPORTANT
can cause damage to the heat pump.
Ensure that a sludge separator is installed in the
hydraulic system.
Rinse the hydraulic system thoroughly prior to es-
tablishing the hydraulic connection of the heat
pump.
NOTE
The heat source can be connected from the
top, right or left.
If the heat source will be connected at the side, the ca-
bles can be cut to a residual length of at least 250 mm
“Dimensional dra-
IMPORTANT
Damage to the copper pipes due to unacceptable
loading!
Secure all connections against twisting.
The heat source system has been installed in
planning &
design manual, dimensioned diagrams,
Cross-sections and lengths of the pipes for the
heating circuit and heat source are dimensioned
adequately.
The free pressure of the circulation pumps
produces at least the minimum throughput
“Technical data /
The cables for the heat source and the heating
valves
IMPORTANT
force!
Tighten the union nuts only as far as described
here.
1. -
tion.
2.
3. Push the pipe through the clamping ring up to the
4. Tighten the union nut hand-tight and attach water-
5.
6.
1.
2. Tighten the union nut hand-tight and retighten
the clamping ring is already in a clamping posi-
tion.
Connect the unit to the heat source, domestic
water pipes and heating circuit
1.
heat source and heating circuit.
2. Insert a vent at the highest point of the heat
source and the heating circuit.
3.
0.9 mm onto the heat source inlet.
4.
the local regulations.
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Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
5. Recommendation: To balance out pressure
unnecessary loss of water, install an expansion
6. Ensure that the operating overpressures
“Technical data / Scope of supply”, from
reducer if necessary.
6.4 Connect the electrical cables
IMPORTANT
Irreparable damage to the compressor due to
the compressor load infeed.
Basic information on the electrical connection
NOTE
Ensure that the unit is supplied with electricity
attaching the unit panelling, switch the power
company may apply to electrical connections
Fit the power supply for the heat pump
Note the level of the tripping current
“Technical data / Scope of supply”, from
Comply with the electromagnetic compatibility
Lay unshielded power supply cables and shielded
Maximum line length: 30 m.
The LIN-bus cable must be a shielded cable of at
least 4 x 0.5 mm²
the connections
1. Strip the sheathing of all cables to external loads
before laying in the cable duct of the control box.
2. Open electrical switchbox:
Undo 2 screws at the top of the cover panel of
the electrical control box
3. Lay the control / sensor cables and unit supply
cable and connect:
Route cables through the reserve conduits (①)
and (②) only, from behind into the inside of the
unit
16 Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
4. Route cables from underneath through the cable
openings in the control box.
5. Connect cables to the respective terminals
1.
2.
(①).
1
NOTE
time.
6.5 Installing the control panel
NOTE
The control can be inserted in a recess in the
front panel of the unit or can be installed on
the wall.
Insert the control in the unit and connect
1.
“Dismantle
housing panels for transport with handcart or
together and push out of the openings.
2.
panel.
3. Position the control unit in the recess in the front
panel of the unit and press the latching lugs into
the openings.
4. Cut the cable to length generously so that the
front panel can be removed and placed to the side
of the unit. Do not cut the cable ties for strain relief
of the LIN bus cable at the electric control box.
the strain relief at the electrical control box
All other cables approx. 1.2 m
5.
200 mm
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6. Push the cable through the opening in the front
panel of the unit and from below into the control
unit.
7. Press the lugs of the control into the openings in
the front panel of the unit.
8. Insert cover in the free slot.
Mount the control on the wall and connect it
IMPORTANT
only ver-
tically on a wall!
1.
2.
3. Dimensional drawing “Wall
4.
the web at the bottom in the middle of the wall
5. (②) with 2 wall plugs (①) and
2 screws (③).
6.
or from below.
7. Route the LIN bus cable from the top right-hand
side at the rear from the heat pump and plug into
the control at the bottom.
8.
9. Push on cover. If applicable, position second
7
7.1 Remove the front panel of
the module box
Unscrew the front panel of the module box.
7.2
Frost protection must be provided in the heat source.
Below are the approved antifreeze agents based on:
Monopropylene glycol
Monoethylene glycol
Ethanol
Methanol
Antifreeze agents based on salt are not permitted.
When selecting the antifreeze agent, it must be
ensured that it is compatible with the following
materials:
If an antifreeze agent is not compatible with one
of these materials, it may not be used.
18 Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
Antifreeze agents from our product range are
safe with regard to our units and the accessories
purchased from us and guarantee compatibility
with the listed materials.
Pressure losses must be observed when selec-
ting the antifreeze agent.
The antifreeze agent that is selected and used
-
ments of the local authorities and water manage-
ment authorities.
WARNING
Methanol and ethanol can give o am-
mable and explosive gases. Therefore, the
safety provisions for the anti-freeze must
be noted and followed!
The hazard markings of all anti-freezes
used must be noted and the relevant safety
provisions must be followed.
-
reeze agent meets the required minimum antifree-
ze temperature in the heat source.
“Technical data / Scope of supply“, from
page 24
For operation of the heat source with water or
water-antifreeze mixture, ensure that the water
water side.
“Heating water quality”, page 19
Drain pipe of the safety valve is connected.
Room is ventilated.
1. Flush the heat source system thoroughly.
2. Mix antifreeze with water thoroughly with the
required ratio, before adding to the heat source.
3.
mixture.
4. Fill the heat source with the water-antifreeze
mixture.
Fill until the system is air-free.
5. Fill the unit via the ball valves in the module box.
7.3 Vent the circulation pump of
the heat source
The front panel of the module box is unscrewed.
1. Place vessel for collecting discharging liquid
under the outlet.
2. ①-
culation pump of the heat source.
1
NOTE
The hose connectors are not part of the
scope of delivery with all KFE ball valves.
3. Wait until liquid is discharged uniformly.
4. ①
5. Screw the front panel of the module box.
6. Dispose of collected liquid according to the local
regulations.
7. Set system pressure to 1 bar.
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7.4
domestic hot water charging
circuit
Heating water quality
NOTE
For detailed information refer, among
other things, to the VDI Guidelines
2035 “Vermeidung von Schäden in
Warmwasserheizanlagen”
Required pH value: 8.2 … 10;
for aluminium materials:
pH value: 8.2 … 8.5
Fill the system with deionised heating water
Advantages of low-salt operation:
Low corrosion-promoting properties
No formation of mineral scale
Ideal for closed heating circuits
the system
If the required water quality is not achieved, con-
sult a company specialising in the treatment of he-
ating water.
Keep a system log for hot water heating systems
Drain pipe of the safety valve is connected.
The front panel of the module box is unscrewed.
Ensure that the set pressure of the safety valve is
not exceeded.
1. Pull the U-clip (②)-
tor (①).
2.
3-way switching valve (③).
2
3
1
3. ④
so that the rounded side of the spindle points in
the 3-way switching valve.
4
4. Flush the domestic hot water charging circuit for
approx. 1 minute.
5. Turn the spindle so that the rounded side of the
connections of the 3-way switching valve.
6. Flush heating circuit thoroughly, until no more air
is discharged.
20 Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
7. Position the valve motor (①) on the 3-way switch-
ing valve (③).
8. Insert the U-clip (②)-
tor.
2
3
1
9. Ensure that the U-clip has latched into position
correctly:
Valve motor sits securely on the 3-way switching
valve.
Both prongs of the U-clip sit on the lug.
The tips of the U-clip are visible by approx. 2 mm
10. Screw the front panel of the module box.
7.5
Drain pipe of the safety valve is connected.
Ensure that the set pressure of the safety valve is
not exceeded.
1. Open the domestic water inlet valve at the
2. Open taps for domestic hot water.
3.
air discharges from the valves at the taps.
4. Close taps for domestic hot water.
8 Insulate hydraulic connections
1. Insulate heating circuit, heat source and domestic
water pipes according to the local regulations.
2.
3.
4. Insulate the internal piping of the module box with
included.
5. Insulate external piping on site.
6.
7.
tight.
8.
9
NOTE
The activities in this section are only nec-
the maximum return temperature can be
exceeded and the heat pump switches to
high-pressure fault.
valve to the right to increase the tempera-
it to the left to reduce it.
condition
The IBN assistant already provides the option, in the
-
lic system.
Table of contents
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