Danfoss Akva Lux II VX2, VX3, VX2-E, VX3-E Operating instructions

Danfoss
Brand
Danfoss
Model
Akva Lux II VX2, VX3, VX2-E, VX3-E
Type
Operating instructions
1
Danfoss District Energy VI.GP.V1.02 DKDHR
1.0 Table of contents ........................................................................................................................................................................................................................1
2.0 Safety notes .................................................................................................................................................................................................................................. 2
3.0 Storage and Handling ...............................................................................................................................................................................................................2
4.0 Disposal .......................................................................................................................................................................................................................................... 2
5.0 Diagram - Examples ...................................................................................................................................................................................................................3
5.1 Akva Lux II VX2 ....................................................................................................................................................................................................................3
5.2 Akva Lux II VX2-E ................................................................................................................................................................................................................4
5.3 Akva Lux II VX3 ....................................................................................................................................................................................................................5
5.4 Akva Lux II VX3-E ................................................................................................................................................................................................................6
6.0 Main components ......................................................................................................................................................................................................................7
6.1 Akva Lux II VX2 ....................................................................................................................................................................................................................7
6.2 Akva Lux II VX2-E ................................................................................................................................................................................................................8
6.3 Akva Lux II VX3 ....................................................................................................................................................................................................................9
6.4 Akva Lux II VX3-E ............................................................................................................................................................................................................. 10
7.0 Easy start-up .............................................................................................................................................................................................................................. 11
8.0 Mounting.................................................................................................................................................................................................................................... 12
8.1 Variable connection possibilities ............................................................................................................................................................................. 12
8.2 DHW recirculation Akva Lux II VX2 & Akva Lux II VX3 ....................................................................................................................................... 13
8.2.1 Mounting of circulation set for Akva Lux II VX2 & VX3 .......................................................................................................................... 13
8.2.2 Mounting of circulation set Akva Lux II VX2E and VX3-E ...................................................................................................................... 13
8.3 Expansion vessel ............................................................................................................................................................................................................ 14
8.4 Heat meters, Fitting pieces ......................................................................................................................................................................................... 15
8.5 Test and connections ................................................................................................................................................................................................... 15
8.6 Mounting of outdoor temperature sensor ........................................................................................................................................................... 15
8.7 Safety valves .................................................................................................................................................................................................................... 15
9.0 Filling, Start-up ........................................................................................................................................................................................................................ 16
10.0 Manometer and relling ..................................................................................................................................................................................................... 16
11.0 Electrical connections .......................................................................................................................................................................................................... 17
12.0 Description of Akva Lux II VX variants ............................................................................................................................................................................ 18
12.1 Akva Lux II VX2 (ECL 110) .......................................................................................................................................................................................... 18
12.2 Akva Lux II VX2-E (ECL 310/A266) .......................................................................................................................................................................... 20
12.3 Akva Lux II VX3 (ECL310/A260) ............................................................................................................................................................................... 23
12.4 Akva Lux II VX3-E (ECL310/A260) ........................................................................................................................................................................... 26
13.0 Circulation pumps - Heating .............................................................................................................................................................................................. 30
13.1 Wilo-Yonos Para ............................................................................................................................................................................................................ 30
13.2 Wilo-Stratos Pico OEM ................................................................................................................................................................................................ 30
14.0 Circulation pumps - Domestic hot water ...................................................................................................................................................................... 31
14.1 Wilo-Stratos ECO (Circulation set 810.441) ......................................................................................................................................................... 31
14.2 Wilo-Star-Z NOVA (Circulation set 810.443) ....................................................................................................................................................... 31
15.0 Maintenance ............................................................................................................................................................................................................................ 32
15.1 Maintenance plan (recommendations) ............................................................................................................................................................... 33
16.0 Troubleshooting ..................................................................................................................................................................................................................... 34
16.1 Troubleshooting - Heating ....................................................................................................................................................................................... 34
16.2 Troubleshooting - Domestic hot water ................................................................................................................................................................ 36
17.0 EC-Declaration of Conformity ........................................................................................................................................................................................... 38
1.0 Table of contents
Instructions
Akva Lux II VX
2
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
2.0 Safety notes
Instructions
This operating manual should be read carefully before installation and
start-up of the substation. The manufacturer accepts no liability for
damage or faults that result from non-compliance with the operating
manual.
Please read and follow all the instructions carefully to prevent acci-
dents, injury and damage to property. The risk of persons being injured
and equipment damaged increases considerably if the recommended
permissible operating parameters are exceeded.
Installation, assembly work, rst start-up and maintenance work may
be carried out only by qualied and authorized personnel in compli-
ance with the safety regulations (both heating and electrical work).
Energy source
The substation is designed for district heating as the primary source
of energy. However, also other energy sources can be used where the
operating conditions allow it and always are comparable to district
heating.
Application
The substation is designed only to operate with water or a water-glycol
mixture (up to 40%), and other heating media may not be used.
Connect the substation to the house installation in a frost-free room,
where the temperature does not exceed 50 °C and the humidity does
not exceed 80%. Do not cover or wall up the substation or in any other
way block the entrance to the station.
Choice of material
Choice of materials always in compliance with local legislation.
Corrosion protection
The maximum chloride compounds of the ow medium should not
be higher than 300 mg/l. The risk of equipment corrosion increases
considerably if the recommended permissible chloride compounds
are exceeded.
Safety valve(s)
We recommend mounting of safety valve(s), however, always in com-
pliance with local regulations.
Sound level.
≤ 55 dB.
Connection
The substation must be equipped with features that ensure that the
substation can be separated from all energy sources (also power
supply).
Warning! Hot surfaces
Parts of the substation may be very hot and can cause burn inju-
ries. Be very careful when you are in the immediate vicinity of the
substation.
Warning of high pressure and high temperature
The maximum supply temperature in the district heating network
can be up to 110°C and the operating pressure can be up to 16 bar.
This may result in a risk of scalding from touching the substation
and from outow of the medium (water/steam). Exceeding the
substation design data and operating parameters for pressure and
temperature carries an appreciable risk of personal injury and/or
damage to property.
Emergencies
In the event of re, leaks or other hazards, immediately shut o all
sources of energy to the substation, if possible and call for appropri-
ate assistance. If the domestic hot water is discoloured or malodo-
rous, shut o all ball valves on the substation, notify all users and call
for professional assistance immediately.
Warning of damage during transport
On reception of the substation, and before installing it, check for
any evidence of damage during transport.
The substation must be handled and moved with the greatest care
and attention.
IMPORTANT - Tightening of connections
Before adding water to the system, ALL pipe connections MUST be
retightened, as vibrations during transport may have caused leaks.
Once the substation has been lled and the system has been put
into operation, ALL connections must be tightened once more.
(Do not overstrain! - See item 8.5, page 15)
3.0 Storage and Handling
Before installation, the units must be stored in a dry, heated (i.e. frost-
free) room.
(Relative humidity max. 80% and storage temperature 5-70 °C).
The units must not be stacked higher than the limit at the factory . Units
supplied in cardboard packaging must be lifted using the handles incor-
porated in the packaging. Units must be placed on pallets for transport/
moving across large distances.
As far as possible, do not lift the substation by the pipes. Lifting by the
pipes may cause leaks. REMEMBER to retighten.
Handling
We recommend minimum two people to lift the substation.
We recommend that you wear suitable safety footwear while
handling and installing the substation.
4.0 Disposal
Dispose of the packaging in accordance with the local regulations for
disposal of used packaging materials.
The substation is made of materials that cannot be disposed of together
with household waste.
Close all energy sources and disconnect all connection pipes. Disconnect
and dismantle the product for disposal in accordance with the applicable
local regulations for the disposal of the individual components.
33
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
5.0 Diagram - Examples
5.1 Akva Lux II VX2
1 Plate heat exchanger, HE, with insulation
2 Plate heat exchanger, DHW
5 Strainer
6 Non-return valve
7 Ball valve
8 Circulation pump HE
11 Safety valve, HE 2,5 bar
12 Safety valve, DHW 10 bar
13 Thermometer
14 Pocket for pressure gauge
15 Manometer
16 Expansion vessel 12 L
17 Air valve
19 Connection for dierential pressure controller
Measurements:
Dimensions without cover
H730 x W530 x D360 mm
Dimensions with cover
H780 x W550 x D380 mm
Connections:
Order:
1 District heating (DH) supply
2 District heating (DH) return
4 Heating (HE) return
5 Heating (HE) supply
6 Domestic hot water (DHW)
7 Domestic cold water (DCW)
DH
Supply
DH
Return
HE
Supply
HE
Return
DHW
DCW
Circ.
22 Safety thermostat Danfoss AT
23 Sensor pocket for heat meter ½“
24 Fitting piece for heat meter, 1” x 130 mm
25 Controller Danfoss ECL 110/A130
26 Outdoor sensor Danfoss ESMT
27 Sensor Danfoss ESMC
29 Danfoss actuator AMV 150
30 2-way valve VS2
38 Domestic hot water controller
Danfoss PTC2 +P
40 Danfoss FJVR for bypass/circulation
---------------------------------------------------------------
62 Non-return valve (not part of dly)
64 Circulation pump (not part of dly)
Bypass
wall
top view
Connection sizes:
DH: G¾ (ET)
HE: G¾ (ET)
DHW, DCW: G¾ (ET)
Circ.: G¾” (IT)
4
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
5.2 Akva Lux II VX2-E
1 Plate heat exchanger, HE, with insulation
2 Plate heat exchanger, DHW
4 Fitting piece for dierential pressure controller
5 Strainer
6 Non-return valve
7 Ball valve
8 Circulation pump HE
9 Circulation pump DHW circ.
11 Safety valve, HE 2,5 bar
12 Safety valve, DHW 10 bar
13 Thermometer
14 Pocket for pressure gauge ½”
15 Manometer
16 Expansion vessel 12 L
Measurements:
Dimensions without cover
H870 x W530 x D360 mm
Dimensions with cover
H870 x W595 x D380 mm
Connections:
Order:
1 District heating (DH) supply
2 District heating (DH) return
4 Heating (HE) return
5 Heating (HE) supply
6 Domestic hot water (DHW)
7 Domestic cold water (DCW)
top view
wall
Connection sizes:
DH: G¾ (ET)
HE: G¾ (ET)
DHW, DCW: G¾ (ET)
Circ.: G¾” (IT)
17 Air valve
19 Connection for dierential pressure controller
20 Switch box for pumps
21 Flow switch
23 Sensor pocket for heat meter ½“
24 Fitting piece for heat meter, 1” x 130 mm
25 Controller Danfoss ECL 310/A266
26 Outdoor sensor Danfoss ESMT
27 Sensor Danfoss ESMC
29 Danfoss actuator AMV 150
30 2-way valve VS2
31 Danfoss actuator AMV 30
32 2-way pressure balanced valve VM 2
DH
Supply
DH
Return
HE
Supply
HE
Return
DHW
DCW
Circ.
55
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
5.3 Akva Lux II VX3
1 Plate heat exchanger, HE, with insulation
2 Plate heat exchanger, DHW
5 Strainer
6 Non-return valve
7 Ball valve
8 Circulation pump HE
11 Safety valve, HE 2,5 bar
12 Safety valve, DHW 10 bar
13 Thermometer
14 Pocket for pressure gauge ½”
15 Manometer
17 Air valve
19 Connection for dierential pressure controller
22 Safety thermostat Danfoss AT
Measurements:
Dimensions without cover
H860 x W660 x D360 mm
Dimensions with cover
H860 x W700 x D380 mm
Connections:
Order:
1 District heating (DH) supply
2 District heating (DH) return
3 Heating (HE) return
4 Heating (HE) supply
5 Heating (HE) return
6 Heating (HE) supply
7 Domestic hot water (DHW)
8 Domestic cold water (DCW)
top view
Connection sizes:
DH: G¾ (ET)
HE: G¾ (ET)
DHW, DCW: G¾ (ET)
Circ.: G¾” (IT)
23 Sensor pocket for heat meter ½“
24 Fitting piece for heat meter, 1” x 130 mm
25 Controller Danfoss ECL 310/A260
26 Outdoor sensor Danfoss ESMT
27 Sensor Danfoss ESMC
29 Danfoss actuator AMV 150
30 2-way valve VS2
38 Domestic hot water controller
Danfoss PTC2 +P
40 Danfoss FJVR for bypass/circulation
---------------------------------------------------------------
16 Expansion vessel 12 L
62 Non-return valve (not part of dly)
64 Circulation pump (not part of dly)
DH
Supply
DH
Return
HE
Supply
HE
Return
DHW
DCW
Circ.
HE
Supply
HE
Return
Bypass
6
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
5.4 Akva Lux II VX3-E
1 Plate heat exchanger, HE, with insulation
2 Plate heat exchanger, DHW
4 Fitting piece for dierential pressure controller
5 Strainer
6 Non-return valve
7 Ball valve
8 Circulation pump HE
9 Circulation pump DHW circ.
11 Safety valve, HE 2,5 bar
12 Safety valve, DHW 10 bar
13 Thermometer
14 Pocket for pressure gauge ½”
15 Manometer
17 Air valve
19 Connection for dierential pressure controller
Measurements:
Dimensions without cover
H870 x W660 x D360 mm
Dimensions with cover
H870 x W700 x D380 mm
Connections:
Order:
1 District heating (DH) supply
2 District heating (DH) return
3 Heating (HE) return
4 Heating (HE) supply
5 Heating (HE) return
6 Heating (HE) supply
7 Domestic hot water (DHW)
8 Domestic cold water (DCW)
20 Switch box for pumps
21 Flow switch
23 Sensor pocket for heat meter ½“
24 Fitting piece for heat meter, 1” x 130 mm
25 Controller Danfoss ECL 310/A260
26 Outdoor sensor Danfoss ESMT
27 Sensor Danfoss ESMC
29 Danfoss actuator AMV 150
30 2-way valve VS2
31 Danfoss actuator AMV 30
32 2-way pressure balanced valve VM2
---------------------------------------------------------------
16 Expansion vessel 12 L incl. brackets and T-piece
(supplied loose)
DH
Supply
DH
Return
HE
Return
HE
Supply
DHW
DCW
Circ.
top view
Connection sizes:
DH: G¾ (ET)
HE: G¾ (ET)
DHW, DCW: G¾ (ET)
Circ.: G¾” (IT)
HE
Supply
HE
Return
HE
Return
HE
Supply
77
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
6.0 Main components
6.1 Akva Lux II VX2
1 Plate heat exchanger HE
2 Plate heat exchanger DHW
8 Circulation pump, HE
11 Safety valve HE
12 Safety vale DHW
16 Expansion vessel
17 Air valve
19 Connection for di. pressure controller
22 Safety thermostat
24 Fitting piece for heat meter
25 Electronic controller ECL110
29 Actuator AMV 150
30 2-way valve VS 2
38 PTC2+P controller
40 Danfoss thermostat for bypass/circulation
The substations oer variable connection possibilities, as con-
nection of pipes can be established both in the top or in the
bottom of the substation.
Please note:
Your substation may look dierent than the substation shown, as vari-
ants with other components may be supplied. The control function,
however, is basically as stated in this instruction manual.
Instructions for the tted components will be supplied together with
the substation.
Accessories to be ordered separately (mounting on site):
Circulation set - Art. No. 810.441
For systems with DHW circulation.
Insulation cover for DHW plate heat exchanger
is supplied together with the circulation set.
White-lacquered steel-sheet cover
Art. No. 936.0811
1
8
40
24
Primary
DHW
DCW
HE return
HE supply
DH supply
DH return
17
Secondary
DHW
2
38
30
29
25
12
11
810.441
936.0811
22
16
19
8
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
6.2 Akva Lux II VX2-E
1 Plate heat exchanger HE
2 Plate heat exchanger DHW
4 Fitting piece for di. pressure controller
8 Circulation pump, HE
9 Circulation pump, DHW circ.
11 Safety valve HE
12 Safety vale DHW
16 Expansion vessel
17 Air valve
19 Connection for di. pressure controller
20 Switch box for pumps
21 Flowswitch
24 Fitting piece for heat meter
25 Electronic controller EC310/A266
29 Actuator AMV 150
30 2-way valve VS 2
38 PTC2+P controller
40 Danfoss thermostat for bypass/circulation
The substations oer variable connection possibilities, as con-
nection of pipes can be established both in the top or in the
bottom of the substation.
Please note:
Your substation may look dierent than the substation shown, as vari-
ants with other components may be supplied. The control function,
however, is basically as stated in this instruction manual.
Instructions for the tted components will be supplied together with
the substation.
Accessories, which are supplied loose with the substation
(mounting on site):
Circulation set - Art.No. 810.443
The circulation set is supplied assembled and electrically wired
and ready to mount on the substation as shown on the above
photo.
Accessories to be ordered separately (mounting on site):
White-lacquered steel-sheet cover
Art. No. 936.0811
1
8
24
Primary
DHW
DCW
HE return
HE supply
DH supply
DH return
17
Secondary DHW
2
30
29
25
12
11
9
Circulation set
4
20
32
31
936.0811
16
19
21
99
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
6.3 Akva Lux II VX3
Accessories, which are supplied loose with the substation
(mounting on site):
Expansion vessel - Art. No. RES. 178
Accessories to be ordered separately (mounting on site):
Circulation set - Art. No. 810.441
For systems with DHW circulation.
Insulation cover for DHW plate heat exchanger
is supplied together with the circulation set.
White-lacquered steel-sheet cover
Art. No. 936.1541
1 Plate heat exchanger HE
2 Plate heat exchanger DHW
8 Circulation pump, HE
11 Safety valve HE
12 Safety vale DHW
17 Air valve
19 Connection for di. pressure controller
22 Safety thermostat
24 Fitting piece for heat meter
25 Electronic controller ECL 310/260
29 Actuator AMV 150
30 2-way valve VS2
38 PTC2+P controller
40 Danfoss thermostat for bypass/circulation
The substations oer variable connection possibilities, as
connection of pipes can be established both in the top or in
the bottom of the substation.
Please note:
Your substation may look dierent than the substation shown, as
variants with other components may be supplied. The control func-
tion, however, is basically as stated in this instruction manual.
1
25
29
30
8
24
Primary Secondary
HE return
HE upply
HE return
HE supply
DH supply
DH return
DHW
DCW
DHW
2
40
38
12
11
17
810.441
RES.178
936.1541
8
19
22
10
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
6.4 Akva Lux II VX3-E
Accessories, which are supplied loose with the substation
(mounting on site):
Expansion vessel - Res. 178
Circulation set - Art.No. 810.443
The circulation set is supplied assembled and electrically wired
and ready to mount on the substation as shown on the above
photo.
Accessories to be ordered separately (mounting on site):
White-lacquered steel-sheet cover
Art. No. 936.1541
1 Plate heat exchanger HE
2 Plate heat exchanger DHW
4 Fitting piece for di. pressure controller
8 Circulation pump, HE
11 Safety valve HE
12 Safety vale DHW
17 Air valve
19 Connection for di. pressure controller
20 Switch box for pumps
21 Flowswitch
24 Fitting piece for heat meter
25 Electronic controller ECL 310/A260
29 Actuator AMV 150
30 2-way valve VS2
31 Actuator AMV 30
32 2-way pressure balanced valve VM2
The substations oer variable connection possibilities, as
connection of pipes can be established both in the top or in
the bottom of the substation.
Please note:
Your substation may look dierent than the substation shown, as
variants with other components may be supplied. The control func-
tion, however, is basically as stated in this instruction manual.
Instructions for the tted components will be supplied together with
the substation.
29
30
8
8
24
Primary Secondary
HE supply
HE return
HE return
HE supply
DH supply
DH return
DHW
DCW
DHW
2
32
12
11
17
9
19
31
29
25
20
RES.178
1
Circulation set
936.1541
4
21
30
1111
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
7.0 Getting started
Connect the substation to the household piping in accordance with
the labelling at the bottom and/or in accordance with the instruc-
tions in this manual.
If the system features DHW recirculation, a recirculation connection
must be established on the substation.
For instructions about recirculation connection, see page 13.
We recommend establishing recirculation BEFORE mounting the
substation on the wall.
Start-up
1. The ball valves are supplied loose with the substation. Mount the
ball valves for DH supply and return as well as the ball valves for
HE supply and return in the top of the substation. Mount the ball
valves for DHW and DCW in the bottom of the substation.
2. Please note that change of connection from bottom to top
for DCW and DHW includes relocation of blind plates BEFORE
mounting the substation on the wall. (See page 12, item 8.1
for further information.
3. The substations are for wall mounting, and the mounting sheet
has got holes for installation. Fix the substation on a solid wall
with two sturdy bolts, screws, expansion bolts or the like.
Please note that we recommend min. two people to lift the
substation.
4. Close all shut-o valves at the substation before connecting
them to the household piping.
5. Mount expansion vessel on substation types Akva Lux II VX3 and
Akva Lux II VX3-E, - see page 14.
6. Mount heat meter, - see page 15.
7. IMPORTANT! Tighten all connections, as vibrations dur-
ing transport and handling may have caused leaks.
CAUTION! Please note that the connections may be sup-
plied with EPDM rubber gaskets. Therefore take care not to
overstrain the union nuts, as this may result in leaks. The
manufacturer accepts no liability for leaks that result from
overstrain of union nuts.
8. On systems that feature a safety valve, establish a drain con-
nection in compliance with the applicable legislation.
9. If the household piping system features domestic hot water
recirculation, the substation must be connected to the recir-
culation system. See page 13 for more information about DHW
recirculation.
10. Carefully open the ball valves for the HE supply and return ow as
well as the ball valve for DCW. Carefully open the ll valve and ll
the system with water and at the same time vent the system. Fill
the heat exchanger / the system with water until the manome-
ter shows a working pressure, which correspondes to the system
height + 5 m (approx. 1.2 - 1.5 bar), - see page 16.
11. Close the ll valve.
12. Subsequently open the ball valve for the DH supply and return
ow and heat up the system.
13. Check the substation and the household piping carefully for any
leaks.
14. Pressure test the entire system for leaks in accordance with the
applicable regulations.
15. Connect pump(s) and automatic components to the electricity
supply, but do not switch on the power.
16. Heat the system and vent the radiator circuit/heating side
thoroughly on the radiators and the air valve, if any.
17. Switch on the pumps and automatic components.
18. Finish by adjusting the substation in accordance with this
instruction manuals.
IMPORTANT! Heating and cooling of the system may cause
leaks. Therefore it may be necessary to retighten the connec-
tions in the period after commissioning.
12
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
8.0 Mounting
The installation, connection and maintenance of the substation must
be performed by qualied and authorised personnel.
Installation must always be performed in accordance with the ap-
plicable legislation and in compliance with these instructions.
The substation must be installed so that it is freely accessible and can
be maintained without unnecessary disruption. Lift the substation
by its mounting plate/rear section and secure it to a solid wall using
2 sturdy bolts, screws or expansion bolts positioned in the two key-
holes in the mounting plate/rear section.
Before commissioning, rinse all the pipes in the household piping
system thoroughly to remove any impurities, and check and clean
the dirt strainers in the substation.
Connect the substation to the household piping in accordance with
the labelling at the bottom and/or in accordance with the instruc-
tions in this manual.
8.1 Variable connection possibilities
The substations oer variable connection possibilities, as connec-
tion of pipes can be established in the top or in the bottom of the
substation.
Upon delivery the ball valves are supplied loose with the substation
and the substation is prepared for mounting of the ball valves for DH
supply and return as well as the ball valves for HE supply and return in
top of the substation and for mounting of the ball valves for DHW and
DCW in the bottom of the substation, as illustrated on the photo to your
right (g. B).
For substations, on which the ball valves are mounted according to
the above, it is possible to change the connection order as follows:
For change of connection from top to bottom for DH supply and return
and HE supply and return, demount plugs on connection pipes in bottom
of substation and ball valves on connection pipes in top of substations
and mount plugs in connection pipes in top of substation and ball valves
on connection pipes in bottom of substation.
For change of connection from bottom to top for DHW and DCW
please follow the below instructions:
Fig. 1: Demount plugs on connection pipes in top of substation
Fig. 2: Demount ball valves on connection pipes in bottom of
substation
Fig. 3: Relocate blind plate in T-piece on DHW pipe as shown on
photo to your right. Please note the easy access to the T-piece
through a cut out in the back plate.
Fig. 4: Demount blind plate on DCW pipe
Fig. 5: Mount ball valves on DCW and DHW connection pipes in top of
substation.
Fig. 6: Mount plugs in DCW and DHW connection pipes in bottom of
substation
Please note Akva Lux II VX3-E is supplied with blind plate on
the DCW pipe only.
DCW
pipe
Fig. 1 Fig. 2
Fig. 3 Fig. 4
Fig. 5 Fig. 6
DHW
pipe
Fig. B
Fig. A
1313
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
8.2 DHW recirculation Akva Lux II VX2 & Akva Lux II VX3
If the household plumbing system includes hot water recirculation
the substation must be connected to the hot water recirculation
system by using this circulation set.
It is to be recommended to prepare the substation for recirculation
BEFORE mounting it on the wall.
8.2.1 Mounting of circulation set for Akva Lux II VX2 & VX3
Fig. 1. Mount the circulation set on the DCW inlet pipe, either
in the toop or in the bottom of the substation. The pump
must be installed so that the pump is pumping water
towards the substation.
Fig. 2. If the circulation set is mounted on the DCW inlet pipe in
the top of the substation, the blind plate in the T-piece on
the DCW pipe must be demounted,
Fig. 3. and the plug in the top DCW inlet pipe must be relocated
to the top of the inserted T-piece.
Fig. 4. The circulation set must be mounted in the order, shown
on the photo at the top of the page. The non-return valve
must be glued or packed in the 5/4” pump union piece and
the arrow on the non-return valve must point towards the
T-piece.
Fig. 5. If the circulation set is mounted on the DCW inlet pipe
in the bottom of the substation, the T-piece must be
mounted above the ball valve.
Fig. 6. The insulation cover is to be mounted on the DHW plate
heat exchanger. Remove top/bottom and front piece of
insulation cover.
Fig. 7. Mount the insulation cover, as shown on g. 7 by placing
the front piece of the insulation cover in front of the plate
heat exchanger
Fig. 8. and then slide the back piece of the insulation cover on
the heat exchanger, thus gathering the front and back
piece of the insulation cover.
Fig. 9. Fix top and buttom and fasten with self-cutting screws.
Connect the pump to the household electrical wiring. For
setting and venting of pump, please refer to page 31.
8.2.2 Mounting of circulation set Akva Lux II VX2-E and VX3-E
The circulation set is supplied assembled and electrically wired
and ready to be mounted on the DCW inlet pipe in the bottom of
the substation before start up. See photo on page 9 and 11.
Fig. 1 Fig. 2
Fig. 3 Fig. 4
Fig. 5 Fig. 6
Fig. 7 Fig. 8 Fig. 9
Top
or
bottom
Pack
14
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
8.3 Expansion vessel
Expansion vessel, Akva Lux II VX2 and VX2-E
The Akva Lux II VX2 substation is equipped with an expansion ves-
sel, which is factory set to 0.5 bar.
Expansion vessel, Akva Lux II VX3 and VX3-E
An expansion vessel is supplied loose with the Akva Lux II VX3
substations for mounting on site.
The expansion vessel is factory set to 0.5 bar.
The expansion vessel can be connected to the substation either in
the top or in the bottom of the substation, - contrary to the pipes
connection, which can be established both in the top or in the bot-
tom of the substation.
Mount the expansion vessel according to the below instructions:
1. Mount the T-piece on the HE supply either in top or bottom of
substation.
2. Mount the bracket on the wall.
3. Place the expansion vessel on the bracket and fasten it with
union nuts or screw nuts (not part of the delivery).
4. Establish pipe connection between T-piece and connecting
piece on expansion vessel. (Please note that a connection
pipe is not part of the delivery).
T-piece
Expansion vessel
Bracket
1515
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
8.4 Heat meter, Fitting piece
The substations are equipped with tting pieces for heat meter on
the district heating return line.
Fitting of heat meter
- Close the ball valves on the district heating and the heating
sides.
- Loosen the union nuts at both ends of the tting piece and
remove it.
- Fit the heat meter, - remember to insert gaskets.
- Mount sensor, - remember to insert gaskets.
- After mounting of heat meter remember to check and tighten
all pipe connections before commissioning the heat meter.
8.5 Test and connections
Before lling the system with water, retighten all the pipe connections
because vibrations and shocks during transport and handling may
have caused leaks. Once the system has been lled with water, tighten
all the pipe connections once more before performing pressure test
for leaks. After heating of the system, check all the connections and
retighten if necessary.
Please note that the connections may feature EPDM rubber gaskets!
Therefore, it is important that you DO NOT OVERTIGHTEN the
union nuts. Over-tightening may result in leaks. Leaks caused by
over-tightening or failure to retighten connections are not covered
by the warranty.
8.6 Mounting of outdoor temperature sensor
The outdoor temperature sensor is delivered separately and must be
mounted on site according to the enclosed illustrations.
The outdoor sensor is always to be mounted on the coldest side of
the property (normally the north side of the property).
The sensor must not be exposed to the morning sun, and should not
be mounted above windows, doors, air vents or other heat sources,
and not under balconies and roof eaves.
Mounting height approx. 2.5 m above ground.
Temperature range: -50 to 50° C
Electrical connections
Two wire non polarized (can be crossed)
Sensor cable: 2 x 0.4 - 1.5 mm²
ECL 110:
Connect the cable ends to ECL controller in clamps 1 and 2.
ECL 310
Connect the cable ends to ECL controller in clamps 29 and 30.
8.7 Safety valves
A discharge outlet from the safety valves must be established in com-
pliance with local regulations.
16
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX
9.0 Filling, Start-up
Prior to the Akva Lux II VX installation all its pipes and connections
should be cleaned and rinsed. After that the dirt strainers should
be cleaned.
Due to vibrations during transport all connections must be checked
and tightened before lling and start-up.
Before lling up the system and rst start-up, check if:
- pipes are connected according to the circuit diagram,
- expansion vessel is connected,
- heat meter is mounted,
- shut-o valves are closed,
- threaded and anged connections are tightened.
Filling:
The lling valve(s) are used for lling up the heating circuit.
• The pump must be switched o when lling the system with
water.
• Open the ball valves for the HE supply and return ow as well
as the ball valve for DCW.
• Carefully open the ll valve(s) and ll the system with water
and at the same time vent the system.
• Fill heat exchanger / the system with water until the mano-
meter shows a working pressure, which corresponds to the
system height + 5 m (approx. 1.2 - 1.5 bar).
• Close the ll valve(s).
• Then open the ball valves for the DH supply and return ow
and heat up the system.
• After lling and heat- up of the system, it should be vented by
means of the air vents on the substation and on the radiators.
• The switch on the pump(s).
10.0 Manometer and relling
If the pressure drops below 1 bar, water must be added to the
system. The operating pressure should never exceed 1.5 bar.
(The safety valves open at 2.5 bar)
If the system pressure drops dramatically within a short time, or
if you experience that it is necessary often to rell the system,
the heating system should be examined for leaks, - this includes
checking the factory set pressure of the expansion vessel.
Filling valves
Akva Lux II VX2
Filling valves
Akva Lux II VX2-E
Filling valves
Akva Lux II VX3
Filling valves
Akva Lux II VX3-E
1717
Danfoss District Energy VI.GP.V1.02 DKDHR
Instructions Akva Lux II VX
11.0 Electrical connections
The station is wired and tested in the factory.
Electrical connections between the controller, pump(s), sensor
and actuator(s) are made.
The electrical connection of the substation must be performed
by a qualied and authorised electrician in compliance with all
applicable rules and regulations.
The station should be connected to a 230 V AC power supply.
The power supply connection must be carried out in accordance
with the applicable regulations and instructions.
The station must be wired and connected to an external main
switch so that it can be turned o during maintenance, cleaning
or repair work or in case of an emergency situation.
Component Supply voltage
Power
consumption
Controller
ECL 110
230 V a.c., 50 Hz 3 VA
Controller
ECL 300/310
230 V a.c., 50 Hz 5 VA
Actuator
AMV 150
230 V a.c., 60 Hz 8 VA
Actuator
AMV10/20/30
230 V a.c., 60 Hz 2 VA
Pump, Wilo Yonos
Para
230 V a.c., 50 Hz Max. 45 Watt
Pump, Wilo
Stratos Pico 15/1-6
230 V a.c., 50 Hz Max. 40 Watt
Pump, Wilo
Star Z Nova
230 V a.c., 50 Hz Max. 4.5 Watt
Pump, Wilo Stratos
Eco Z
230 V a.c., 50 Hz Max. 59 Watt
18
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX2 (ECL 110)
12.0 Description of Akva Lux II VX variants
12.1 Akva Lux II VX2 (ECL 110)
Substation for indirect heating for single-family, semi-detatched and
terraced houses as well as ats. With one heating circuit for radiator or
oor heating and instantaneous domestic hot water heater. Designed
for wall-mounting with connections in top and bottom of substation.
The temperature for the heating circuit is controlled by a Danfoss
ECL 110 controller in combination with an electronic actuator. The
supply temperature is calculated by the controller on basis of the
outdoor temperature.
Please note:
Your substation may look dierent than the substation shown, as vari-
ants with other components may be supplied.
Instructions for the tted components will always be supplied to-
gether with the substation.
Heating circuit
The temperature for the heating circuit is controlled electronically
by the Danfoss ECL controller. The supply temperature is calculated
by the controller on basis of the outdoor temperature.
The factory-setting of the controller ensures that heating is automati-
cally switched o in the summer period.
In periods with higher heat demand the controller settings can be
changed in accordance with the enclosed producer instructions for
the mounted controller.
Installation & Maintenance
Danfoss ECL Comfort 110
Control of heating circuit
For controlling the heating circuit the Akva Lux II VX 2 (ECL 110) is
supplied with a 2-way valve VS 2 and an electrical actuator AMV 150,
which in combination with the ECL controller controls the heating
circuit.
The electrical actuator has undergone a functional test from factory.
In case of operating disturbances the actuator can be closed manu-
ally turning the manual override knob on top of actuator counter-
clockwise.
Please see enclosed instructions,
Electrical actuator AMV 150
2-way valve VS 2
DH-SMT/DK VI.KT.F2.02 © Danfoss 06/2008
$2!&4
Instructions
ECL Comfort 110
Application 116
Constant temperature control
of domestic hot-water systems (DHW)
User guide,
Installation & Maintenance
Manual override (AMV 150)
VS 2
Press and hold the button (on
the bottom side of the actuator)
during manual override.
7369267-9 SIBC R&D EI.97.Q2.00 © Danfoss 12/01 1
INSTRUCTIONS
VS2 2-way
065R9075
065R9075
DN L (mm)
15 65
20 70
25 75
DN L
1
(mm)
15 131
20 142
25 159
DN L
2
(mm)
15 139
20 154
25 159
DN L
3
(mm)
15 69
20 74
25 79
Instructions
AMV 150
73691180 DH-SMT/SI VI.KU.N2.1J © Danfoss 01/2008 1
ENGLISH
Actuators for three point control AMV 150 w ww.danfoss.com Page 2
DANSK
Motorer til 3-punkts styring AMV 150 www.danfoss.dk Side 3
DEUTSCH
Stellantriebe für 3-Pkt.- Eingangssignal AMV 150 www.danfoss.de Sei te 3
SVENSKA
Motor för 3-punktsreglering AMV 150 varme.danfoss.se Sida 4
NEDERLANDS
Servomotor met 3-puntssturing AMV 150 www.danfoss.nl Pagina 4
LIETUVIŲ K.
Pavaros trijų padėčių valdymui AMV 150 www.danfoss.lt 5 puslapis
LATV ISKI
Motori trīs punktu kontrolei AMV 150 www.danfoss.com Lpp. 5
MAGYAR
Szelepmozgatók hárompontos szabályozáshoz AMV 150 www.danfoss.com 6. oldal
ČESKY
Servopohony s tříbodovým regulační m signálem AMV 150 www.danfoss.cz Strana 6
POLSKI
Siłowniki sterowane sygnałem 3-punktow ym AMV 150 www.danfoss.pl Strona 7
РУССКИЙ
Электроприводы для трехпозиционного регулирования AMV 150
www.danfoss.ru Ст рани ца 7
AMV 150 + AMV 150 + AMV 150 +
VS2 (DN 15) VMV AVQM (DN 15)
1919
Danfoss District Energy VI.GP.V1.02 DKDHR
Circulation pump, heating circuit
See chapter 13 on page 30 for more information about circulation
pump.
Safety thermostat
The heating circuit is supplied with a safety thermostat, type AT
pipe thermostat, for protection against overheating.
The AT pipe thermostat is used to regulate the medium tempera-
ture in the pipe, on which the thermostat is mounted. AT senses the
temperature in the pipe through its contact surface and is therefore
suitable to control the ow temperature, as it - in combination with
the ECL controller - switches of the pump to prevent excessive lev-
els of temperature.
Please see enclosed operating instructions
Domestic hot water
The domestic hot water is prepared in a heat exchanger based on the
ow principle and the temperature is controlled by a combined hydraulic
and thermostatic self-acting controller PTC2+P with integrated dieren-
tial pressure controller, which blocks the ow of primary and secondary
side ow through the heat exchanger immediately after completion of
the tapping process.
DHW temperature control
Danfoss PTC2+P controller (1) for DHW. The DHW temperature is adjusted
by turning the lever towards “+” (warmer) or “-” (colder).
Start by turning the handle clockwise - until stop /until the handle can
not be turned anymore. Then turn the handle counter-clockwise until
the temperature of the tap water is approx. 48° C at normal use (7-8 l/
min). The temperature should never exceed 55° C to avoid lime scale
precipitation.
Bypass thermostat
Bypass thermostat (default).
As a standard the Akva Lux II VX2 is equipped with a bypass thermostat,
Danfoss FJVR (2), which ensures that hot water is produced immedi-
ately, when tapping starts. It is recommended to set the thermostat
in pos.3. If the water temperature rises too slowly it can be necessary
to set the thermostat at higher value.
Alternatively a DHW circulation system must be installed.
DHW recirculation
For Akva Lux II VX2 switching to recirculation is possible from a
constructional point of view, requiring only an additional circula-
tion set. The circulation set is not included in the delivery and must
be ordered separately and mounted on site.
See instructions for mounting of circulation set on page 13.
Remember always to mount circulation pump, non-return valve and
safety valve on the circulation pipe. The pump must be installed so
that it is pumping water towards the substation.
Instructions Akva Lux II VX2 (ECL 110)
Handle for temperature setting
1
2
Approximate scale settings
2 = 30° C
3 = 40 °C
4 = 45° C
I = 50° C
(max. temperature)
Application
The AT pipe thermostat is used to regulate the
medium temperature in the pipe on which the
thermostat is mounted. AT senses the tempera-
ture in the pipe through its contact surface and is
therefore suitable to control boiler or flow tem-
perature in central heating systems.
The AT pipe thermostat comprises a bimetallaic
sensor, a contact system and a setting knob.
On connection to terminals CO and NC the ther-
mostat breaks on a rise in temperature.
On connection to terminals CO and NO the ther-
mostat close on a rise in temperature.
The AT thermostat can be mounted on the pipe
without emptying the plant of water.
Technical Data
Temperature range 30 to 90 °C
Temperature scale external (type 041E0000)
internal (type 041E0020)
Temperature differential 8 K
Max. temperature plant surface Ts90
Max. ambient temperature 55 °C
Storage temperature -20 to 90 °C
Switch system SPDT
Enclosure IP40
Terminal CO-NC Breaks on temperature rise
Terminal CO-NO Closes on temperature rise
Switch load 6 (2.5) A, 250 Vac
0.1 A, 250 Vdc
Approval according to EMC Standard EN 60730-2-9: 1995
EMC Standard Emission EN 55014
Environment Normal
Installation Installed in any position
Accessories
Product Code no.
Heat-conductive compound ~ 5 g 041E0110
Heat-conductive compound ~ 1 kg 041E0111
Data Sheet
Thermostat type AT
Danfoss Heating Solutions VDGIA102 © Danfoss 01/2012 1
20
DKDHR VI.GP.V1.02 Danfoss District Energy
Instructions Akva Lux II VX2-E (ECL 310/A266)
12.2 Akva Lux II VX2-E (ECL 310/A266)
Substation for indirect heating for single-family, semi-detatched and
terraced houses as well as ats. With one heating circuit for radiator or
oor heating and instantaneous domestic hot water heater. Designed
for wall-mounting with connections in top and bottom of substation.
The temperature for the heating circuit is controlled by a Danfoss
ECL 310 controller in combination with an electronic actuator. The
supply temperature is calculated by the controller on basis of the
outdoor temperature.
Please note:
Your substation may look dierent than the substation shown, as vari-
ants with other components may be supplied.
Instructions for the tted components will always be supplied to-
gether with the substation.
Heating circuit
The temperature for the heating circuit is controlled electronically by
the Danfoss ECL controller. The supply temperature ist calculated by
the controller on basis of the outdoor temperature.
The ECL Comfort 210 controller is loaded with a selected application
by means of an ECL Application Key (Plug-&-Play). The Application
Key contains information about application, languages and factory
settings.
The controller is factory preset to turn o the heating automatically
in the summer period.
The controller settings can be changed in accordance with the en-
closed producer instructions for the mounted controller.
See ECL Application Key Box with ECL Comfort 210/310 user guide
and mounting guide, for further information.
Control of heating circuit
For control of heating circuit 1 the Akva Lux II VX2-E (ECL 310) is
supplied with a 2-way valve VS 2 and an electrical actuator AMV 150,
which in combination with the ECL controller controls the heating
circuit.
The electrical actuator has undergone a functional test from factory.
In case of operating disturbances the actuator can be closed manu-
ally turning the manual override knob on top of actuator counter-
clockwise.
Please see enclosed instructions,
Electrical actuator AMV 150
2-way valve VS 2
Manual override (AMV 150)
7369267-9 SIBC R&D EI.97.Q2.00 © Danfoss 12/01 1
INSTRUCTIONS
VS2 2-way
065R9075
065R9075
DN L (mm)
15 65
20 70
25 75
DN L
1
(mm)
15 131
20 142
25 159
DN L
2
(mm)
15 139
20 154
25 159
DN L
3
(mm)
15 69
20 74
25 79
Instructions
AMV 150
73691180 DH-SMT/SI VI.KU.N2.1J © Danfoss 01/2008 1
ENGLISH
Actuators for three point control AMV 150 w ww.danfoss.com Page 2
DANSK
Motorer til 3-punkts styring AMV 150 www.danfoss.dk Side 3
DEUTSCH
Stellantriebe für 3-Pkt.- Eingangssignal AMV 150 www.danfoss.de Sei te 3
SVENSKA
Motor för 3-punktsreglering AMV 150 varme.danfoss.se Sida 4
NEDERLANDS
Servomotor met 3-puntssturing AMV 150 www.danfoss.nl Pagina 4
LIETUVIŲ K.
Pavaros trijų padėčių valdymui AMV 150 www.danfoss.lt 5 puslapis
LATV ISKI
Motori trīs punktu kontrolei AMV 150 www.danfoss.com Lpp. 5
MAGYAR
Szelepmozgatók hárompontos szabályozáshoz AMV 150 www.danfoss.com 6. oldal
ČESKY
Servopohony s tříbodovým regulační m signálem AMV 150 www.danfoss.cz Strana 6
POLSKI
Siłowniki sterowane sygnałem 3-punktow ym AMV 150 www.danfoss.pl Strona 7
РУССКИЙ
Электроприводы для трехпозиционного регулирования AMV 150
www.danfoss.ru Ст рани ца 7
AMV 150 + AMV 150 + AMV 150 +
VS2 (DN 15) VMV AVQM (DN 15)
VS 2
Press and hold the button (on
the bottom side of the actuator)
during manual override.
ECL application key
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Danfoss Akva Lux II VX2, VX3, VX2-E, VX3-E Operating instructions

Danfoss
Brand
Danfoss
Model
Akva Lux II VX2, VX3, VX2-E, VX3-E
Type
Operating instructions
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