Danfoss Akva Lux II VX Operating guide

Instructions for installation and use Akva Lux II VX substations
Akva Lux II VX thermostatic control
Akva Lux II VX thermostatic control, and optional junction box + zone valve
Akva Lux II VX (ECL 110)
Akva Lux II VX HWP (ECL210)
Akva Lux II VX H2WP (ECL 210)
1. Contents
1.0 Contents .....................................................................................................................................................................................................................................1
2.0 Product introduction .............................................................................................................................................................................................................2
3.0 Dimensional sketches / connections ..............................................................................................................................................................................7
4.0 Enduser instructions, General ............................................................................................................................................................................................8
5.0 Enduser instructions, Initial adjustment and Setting ................................................................................................................................................9
6.0 Enduser instructions, Safety and Handling ................................................................................................................................................................ 11
7.0 Installation instructions - Getting started .................................................................................................................................................................. 12
8.0 Installation instructions, general .................................................................................................................................................................................... 13
9.0 Recirculation connection .................................................................................................................................................................................................. 19
9.1 Installation instructions - recirculation instructions ........................................................................................................................................ 20
10.0 Description of the Akva Lux II VX variants ................................................................................................................................................................... 21
10.1 Akva Lux II VX (thermostatic control) - 1 HE circuit + instantaneous DHW............................................................................................. 21
10.2 Akva Lux II VX (thermostatic control, optional junction box + zone valve) - 1 HE circuit + instantaneous DHW ..................... 24
10.3 Akva Lux II VX (ECL110) - 1 HE circuit + instantaneous DHW ....................................................................................................................... 27
10.4 Akva Lux II VX HWP (ECL 210/A237) - 1 HE circuit + instantaneous DHW ............................................................................................... 30
10.5 Akva Lux II VX H2WP (ECL 210/A260) - 2 HE circuits + instantaneous DHW ..........................................................................................32
11.0 Circulation pumps ................................................................................................................................................................................................................ 35
12.0 Domestic hot water (DHW) ............................................................................................................................................................................................... 39
12.1 Regulation of the domestic hot water temperature ....................................................................................................................................... 39
12.2 Bypass or circulation thermostat ........................................................................................................................................................................... 39
13.0 Maintenance ........................................................................................................................................................................................................................... 40
13.1 Maintenance schedule (recommendations) ...................................................................................................................................................... 41
14.0 Troubleshooting .................................................................................................................................................................................................................... 42
14.1 Troubleshooting - Heating ....................................................................................................................................................................................... 42
14.2 Troubleshooting - Domestic hot water ................................................................................................................................................................44
15.0 EU Declaration of Conformity .......................................................................................................................................................................................... 45
16.0 Commissioning Certicate ................................................................................................................................................................................................ 46
Danfoss District Energy VI.GP.Q3.02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
2.0 Product introduction
2.1 Akva Lux II VX (thermostatic control) - 1 HE circuit and instantaneous domestic hot water heater
1 Plate heat exchanger, HE, insulated 2 Plate heat exchanger, DHW 4 Dierential pressure controller AVPL 5 Dirt strainer 6 Non-return valve 7 Ball valve 8 Circulation pump, HE 9 Plug 11 Safety valve, HE, 2.5 bar 12 Safety valve, DHW, 10 bar 13 Thermometer 14 Pocket for pressure gauge ¼ 15 Manometer
DHW
Circ.
DCW
16 Expansion vessel 12 l 17 Air valve 23 Sensor pocket for heat meter ½“ 24 Flex. tting piece for heat meter, 3/4” x 110-165 mm 30 Thermostat T°C200 / VS2-15 or AVTB 38 PTC2 + P controller 40 Danfoss thermostat for bypass/circulation
--------------------------------------------------------------­61 Recirculation hose (not part of the delivery) 62 Non-return valve (not part of the delivery) 64 Circulation pump DHW recirculation. (not part of the delivery)
DH Supply
DH Return
Principal components
1 Plate heat exchanger HE 2 Plate heat exchanger DHW 4 Dierential pressure controller 7 Ball valve (ll valve) 8 Circulation pump, HE 11 Safety valve, HE 12 Safety valve, DHW 16 Expansion vessel 17 Air valve 24 Fitting piece for heat meter 30 Thermostat T°C 200 / VS2 38 PTC2+P controller 40 Thermostat for bypass/circulation
The substation oers variable connection possibilities, as connec­tion of pipes can be established both in the top or in the bottom of the substation. Please note that the ball valves are supplied loose with the substation, - for mounting on site.
Accessories available as extra equipment (mounting on site)
Recirculation pipe set - Div.736 - Code No. 004U8404 For systems that feature domestic hot water recirculation.
Rell line - Div.770 - Code No. 004U8668 To secure a constant pressure on the secondary side.
(Applicable on some markets, if in accordance with all local regulations, ­please check with your heating supplier).
Recirculation pipe set
Rell line
HE Supply
HE Return
38
17
17
16 2
1
16 2
38
7
4
30
30
40
8
24
24
11
12
24
DHW
DH return
DH supply
Primary
2
DKDHR VI.GP.Q3.02 Danfoss District Energy
HE return
HE supply
Secondary DHW
DCW
Instructions for installation and use Akva Lux II VX substations
2.2 Akva Lux II VX (thermostatic control and optional junction box + zone valve) - 1 HE circuit and instantaneous DHW heater
1 Plate heat exchanger, HE, insulated 2 Plate heat exchanger, DHW, insulated 4 Dierential pressure controller AVPL 5 Dirt strainer 6 Non-return valve 7 Ball valve 8 Circulation pump, HE 11 Safety valve, HE
DHW
DCW
(Option: Circ. div. 736)
DH Supply
DH Return
Circ. (option)
Bypass (standard)
12 Safety valve, DHW 13 Thermometer 0 - 120° C 13A Thermometer 0 - 160° C 14 Pocket for pressure gauge ¼ 15 Manometer 16 Expansion vessel 17 Air valve 23 Sensor pocket for heat meter ½“ 24 Fitting piece for heat meter, 3/4” x 110 mm 30 Thermostat T°C200 / VS2-15 38 PTC2 + P controller 40 Danfoss thermostat for bypass/circulation
--------------------------------------------------------------­Option: Rell line - delivered loose Options: Ball valve 70 Zone valve 62 Non-return valve 71 Junction box 63 Pressure reducing valve Socla kv=3
(Option: Zone valve + junction box
HE Supply
HE Return
(Option: Rell line)
Principal components
1 Plate heat exchanger HE 2 Plate heat exchanger DHW 4 Dierential pressure controller 8 Circulation pump, HE 11 Safety valve HE 12 Safety valve DHW 16 Expansion vessel 17 Air valve 24 Fitting piece for heat meter 30 Thermostat T°C 200 / VS2 38 PTC2+P controller 40 Thermostat for bypass/circulation 70 Zone valve (Option) 71 Junction box (Option)
The substation oers variable connection possibilities, as con­nection of pipes can be established both in the top or in the bottom of the substation. Please note that the ball valves are supplied loose with the substation, - for mounting on site.
Accessories available as extra equipment (mounting on site)
Recirculation pipe set - Div.736 - Code No. 004U8404 For systems that feature domestic hot water recirculation.
Rell line - Div.770 - Code No. 004U8668 To secure a constant pressure on the secondary side.
(Applicable on some markets, if in accordance with all local regulations, ­please check with your heating supplier).
Recirculation pipe set
Rell line
17
16
1
16
70
38
71
40
30
2
4
12
11
8
24
24
24
DCW
DHW
DH supply
Primary
DH return
HE return
HE supply
Secondary DHW
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
2.3 Akva Lux II VX (ECL 110) - 1 HE circuit and instantaneous domestic hot water heater
1 Plate heat exchanger, HE, insulated 2 Plate heat exchanger, DHW, insulated 4 Dierential pressure controller AVPL 5 Dirt strainer 6 Non-return valve 7 Ball valve 8 Circulation pump, HE 11 Safety valve, HE
DHW
DCW
(Option: Circ. div. 736)
DH Supply
DH Return
Circ. (option)
Bypass (standard)
12 Safety valve, DHW 13 Thermometer 0 - 120° C 13A Thermometer 0 - 160° C 14 Pocket for pressure gauge ¼ 15 Manometer 16 Expansion vessel 23 Sensor pocket for heat meter ½“ 24 Fitting piece for heat meter, 3/4” x 110 mm 25 Electronic controller Danfoss ECL 110 26 Outdoor sensor Danfoss ESMT 27 Sensor Danfoss ESMC 29 Danfoss actuator AMV 150 30 2-way valve VS2 38 PTC2 + P controller 40 Danfoss thermostat for bypass/circulation
--------------------------------------------------------------­Option: Rell line - delivered loose 7 Ball valve 62 Non-return valve 63 Pressure reducing valve Socla kv=3
HE Supply
HE Return
(Option: Rell line)
Principal components
1 Plate heat exchanger HE 2 Plate heat exchanger DHW 4 Dierential pressure controller 8 Circulation pump, HE 11 Safety valve, HE 12 Safety valve, DHW 16 Expansion vessel 24 Fitting piece for heat meter 25 Electronic controller 29 Actuator AMV 150 30 2-way valve VS2 38 PTC2+P controller 40 Thermostat for bypass/circulation
The substation oers variable connection possibilities, as con­nection of pipes can be established both in the top or in the bottom of the substation. Please note that the ball valves are supplied loose with the substation, - for mounting on site.
Accessories available as extra equipment (mounting on site)
Recirculation pipe set - Div.736 - Code No. 004U8404 For systems that feature domestic hot water recirculation.
Rell line - Div.770 - Code No. 004U8668 To secure a constant pressure on the secondary side.
(Applicable on some markets, if in accordance with all local regulations, ­please check with your heating supplier).
Rell lineRecirculation pipe set
38
1
2
25
29
4
40
30
16
24
8
11
12
24
DHW
DH return
DH supply
Primary
4
DKDHR VI.GP.Q3.02 Danfoss District Energy
HE return
HE supply
Secondary DHW
DCW
Instructions for installation and use Akva Lux II VX substations
2.3 Akva Lux II VX HWP (ECL 210/A237) - 1 HE circuit and instantaneous domestic hot water heater
1 Plate heat exchanger, HE, insulated 2 Plate heat exchanger, DHW, insulated 5 Dirt strainer 6 Non-return valve 7 Ball valve 8 Circulation pump, HE 11 Safety valve, HE
DHW
12 Safety valve, DHW 13 Thermometer 14 Pocket for pressure gauge ¼ 15 Manometer 16 Expansion vessel 23 Sensor pocket for heat meter ½“ 24 Fitting piece for heat meter, 3/4” x 110 mm 25 Electronic controller Danfoss ECL 210/A237 26 Outdoor sensor Danfoss ESMT 27 Sensor Danfoss ESMC 29 Danfoss actuator AMV 150 30 Multifunctional control valve AHQM 38 PTC2 + P controller 40 Danfoss thermostat for bypass/circulation
--------------------------------------------------------------­Options.: Recirculation set Electronic Danfoss Controller ECL 310
DCW
Circ. (option)
DH Supply
Bypass
DH Return
Principal components
1 Plate heat exchanger HE 2 Plate heat exchanger DHW 5 Strainer 8 Circulation pump, HE 11 Safety valve, HE 12 Safety valve, DHW 16 Expansion vessel 24 Fitting piece for heat meter 25 Electronic controller ECL 210/A237 29 Actuator AMV 150 30 Multifunctional control valve AHQM 38 PTC2+P controller 40 Thermostat for bypass/circulation
The substation oers variable connection possibilities, as con­nection of pipes can be established both in the top or in the bottom of the substation. Please note that the ball valves are supplied loose with the substation, - for mounting on site.
HE Supply
HE Return
38
25
29
1
2
40
30
16
12
8
11
Accessories available as extra equipment (mounting on site)
Recirculation pipe set - Div.736 - Code No. 004U8404 For systems that feature domestic hot water recirculation.
Rell line - Div.770 - Code No. 004U8668 To secure a constant pressure on the secondary side.
(Applicable on some markets, if in accordance with all local regulations, ­please check with your heating supplier).
Rell lineRecirculation pipe set
Danfoss District Energy VI.GP.Q3 .02 DKDHR
5
DH supply
Primary
24
DH return
5
HE return
HE supply
Secondary DHW
DHW
DCW
55
Instructions for installation and use Akva Lux II VX substations
2.4 Akva Lux II VX H2WP (ECL 210/A260) - 2 HE circuits and instantaneous domestic hot water heater
1 Plate heat exchanger, HE, insulated 2 Plate heat exchanger, DHW, insulated 5 Dirt strainer 6 Non-return valve 7 Ball valve 8 Circulation pump, HE 10 Circulation pump, FH 11 Safety valve, HE 12 Safety valve, DHW 13 Thermometer
14 Pocket for pressure gauge ¼ 15 Manometer 16 Expansion vessel 23 Sensor pocket for heat meter ½“ 24 Fitting piece for heat meter, 3/4” x 110 mm 25 Electronic controller Danfoss ECL 210/A260 26 Outdoor sensor Danfoss ESMT 27 Sensor Danfoss ESMC 28 Immersion sensor ESMB
DHW
DCW
Circ. (option)
DH Supply
Bypass
DH Return
Principal components
1 Plate heat exchanger HE 2 Plate heat exchanger DHW 5 Dirt strainer 8 Circulation pump, HE 10 Circulation pump, FH 11 Safety valve, HE 12 Safety valve, DHW 16 Expansion vessel 24 Fitting piece for heat meter 25 Electronic controller 29 Actuator AMV 13 30 Multifunctional control valve AHQM 33 Actuator AMV 150 34 3-way valve VMV 38 PTC2+P controller 40 Thermostat for bypass/circulation 57 Safety thermostat
The substation oers variable connection possibilities, as con­nection of pipes can be established both in the top or in the bottom of the substation. Please note that the ball valves are supplied loose with the substation, - for mounting on site.
Accessories available as extra equipment (mounting on site)
Recirculation pipe set - Div.736 - Code No. 004U8404 For systems that feature domestic hot water recirculation.
Rell line - Div.770 - Code No. 004U8668 To secure a constant pressure on the secondary side.
(Applicable on some markets, if in accordance with all local regulations, ­please check with your heating supplier).
Rell lineRecirculation pipe set
29 Danfoss actuator AMV 30 Multifunctional control valve AHQM 33 Danfoss actuator AMV 34 Three-way valve VMV 38 PTC2 + P controller 40 Danfoss thermostat for bypass/circulation 29 Danfoss actuator AMV, HE 57 Safety thermostat
Supply limit
HE Supply
HE Return
57
25
1
34 33
29
38
2
40
30
10
16
8
11
5
24
5
12
DHW
DH return
DH supply
Primary
6
DKDHR VI.GP.Q3.02 Danfoss District Energy
HE return
HE supply
Secondary DHW
FH supply
FH return
DCW
Instructions for installation and use Akva Lux II VX substations
3.0 Dimensional sketches / connections
Dimensions mm:
Without cover: H 860 x W min. 510 / max. 553* x D 365
With cover: H 861 x W 550 x D 365 H 861 x W 600 ** x D 381
* Units with insulated plate heat exchanger type XB06H-1 40 for both HE and DHW circuits.
** Width of cover for units with insulated plate heat exchanger type XB06H-1 40 for both HE and DHW circuits
.
Connections sizes:
Akva Lux II VX (thermostatic control)
DH + DCW + DHW + HE: G ¾” (int. thread) Connections, Circ.: R ½” (int. thread)
*
Substations with XB 0 6L-24 heat exchanger for o or heating are
supplied with connection pipes for radiators for direct connection.
Akva Lux II VX (thermostatic control and optional junction box + zone valve) + Akva Lux II VX (electronic control)
DH: G¾” (ET) DCW, DHW, HE: G¾” (IT) Circ. R½” (ET)
Akva Lux II VX - 1 HE circuit + domestic hot water
Wall
A DB FEC
H
G
top view
Connections:
Order:
A. District heating (DH) supply
B. District heating (DH) return C. Heating (HE) return D. Heating (HE) supply E. Domestic hot water (DHW F. Domestic cold water (DCW) G. Connection return H. Connection supply *
*
Wall
A DB FEC
top view
Connections:
Order: A District heating (DH) supply B District heating (DH) return C Heating (HE) return D Heating (HE) supply E DHW F DCW
Dimensions mm:
Without cover: H 861 x W 650 x D 365
With cover: H 861 x W 700 x D 380
Connections:
Order: 1 District heating (DH) supply 2 District heating (DH) return 3 Heating (HE) return 4 Heating (HE) supply 5 Floor heating (FH) supply 6 Floor heating (FH) return 7 DHW 8 DCW
Connections size:
DH: G¾” (ET) DCW, DHW, HE, FH: G¾” (IT) Circ. R½” (ET)
Akva Lux II VX - 2 HE circuits + domestic hot water
Zirk.
Wall
top view
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
4.0 Enduser instructions, General
Instructions
Please read these instructions carefully before installing and commis­sioning this substation. The manufacturer accepts no liability for loss or damage resulting from failure to comply with these instructions for use. Read and follow these instructions carefully to prevent the risk of physical injury and/or damage to property. Exceeding the recommended operating parameters appreciably increases the risk of personal injury and/or damage to property.
Installation, commissioning and maintenance must be carried out by qualied and authorised personnel (both plumbing and electri­cal work). Once the station has been installed and is operating, there is nor- mally no need to alter the settings or other functions. The district heating substation is very reliable and easy to operate.
If necessary, you can change the temperature settings as described on page 10. For more detailed information about the substation, see the sections concerning installation and commissioning.
Description
These instructions apply to substation types Akva Lux II VX, which are district heating substations for indirect heating for single-family houses, semi-detatched and terraced houses as well as ats. With one or two heating circuits for radiator and/or oor heating and with instantaneous water heater for domestic hot water heating. For wall­mounting and with variable connection possibilities.
The HE supply temperature is controlled either by a self-acting ther­mostat T°C 200 or AVTB or by a Danfoss ECL controller in combination with an electronic actuator. The ECL controller acts as the brain of the heating system. It lets you easily control and optimize system performance and operation.
Warning! Hot surfaces
Parts of the substation may be very hot and can cause burn in­juries. Be very careful when you are in the immediate vicinity of the unit.
Warnings about high pressure and high temperature
The maximum supply temperature in the district heating net­work can be up to 120°C (130° 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 appropriate assistance. If the domestic hot water is discoloured or malodorous, shut o all ball valves on the substation notify all users and call for profes­sional assistance without delay.
*
the substations can work temporarily at 130° C
We recommend regular inspections of the substation - ideally in connection with readings of the district heating meter. Pay special attention to any leaks and an excessively high return temperature in the district heating circuit (poor cooling of the district heating water). Cooling – i.e. the dierence between the supply and return temperature of the district heating water – has a signicant ef­fect on the overall energy economy. Therefore, it is important to focus on the supply and return temperature in the heating system. The dierence should typically be 30–35°C in systems that operate with radiators. In systems that feature oor heating, the dierence is typically 5–10°C. In oor heating systems, the supply temperature should not exceed 35°C.
Cooling from the water heater alone:
During tapping, the level of cooling will typically be 30–35°C. When domestic hot water is not being tapped, it is completely normal for the return temperature from the water heater to rise slightly. In this situa­tion, the district heating meter will register very modest consumption as the volume of water is very small. On substations with recirculation, the calorie meter registers the heat loss in the recirculation pipe.
Irregularities
When reading the meters, check all joints and connections for leaks.
If you identify any irregularities/leaks, contact your professional provider for assistance. Check the troubleshooting section before contacting your professional provider.
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
5.0 Enduser instructions, Initial adjustment and Setting
Domestic hot water control
Danfoss PTC2+P controller (Fig. 1) for domestic hot water. Set the DHW temperature by moving the adjuster lever towards “+” (hotter) or “-” (colder). Start by turning the lever clockwise – until it stops/until you cannot turn it any further. Then turn the lever counter-clockwise until the temperature of the tap water is approx. 48°C during normal tapping ow (7–8 litres per min.). The temperature must never exceed 55°C to prevent limescale deposits building up in the water heater.
Fig. 1
Option: Alternatively the VX substations may be tted with a Danfoss PM2+P controller (Fig. 2) for domestic hot water. Set the DHW temperature by turning the adjuster lever towards red (hotter) or blue (colder). Start by turning the lever clockwise – until the pin is opposite the blue dot. Then turn the lever counter-clockwise until the temperature of the tap water is approx. 48°C during normal tapping ow (7–8 litres per min.). The temperature must never exceed 55°C to prevent limescale deposits building up in the water heater.
Bypass or circulation thermostat
Thermostat (Fig. 3) that keeps the branch pipe warm in the summer or regulates the circulation temperature if domestic hot water recircu­lation has been established in the hot water system (see pages 20-21 and page 37 for more information). The thermostat should initially be set to position 3.
Heating circuit, Dierential Pressure Controller
The dierential pressure controller (Fig. 1) reduces the high, uctuating pressure in the district heating network to a constant operating pres­sure. The AVPL dierential pressure controller is initially set by the plumber in connection with the commissioning of the substation. If disruptions to the operation occur: noise in the radiator thermostats or poor regulation capacity, it may be necessary to reset the dierential pressure controller to a lower or higher operating pressure. We suggest that you contact your local plumber for assistance. The TD200 dierential pressure controller is preset from factory and should not be adjusted afterwards.
Heating circuit, Temperature control
Thermostatic control
The supply temperature to the substation can be set by adjusting the ther­mostat TC (Fig. 5), which controls the temperature for the heating circuit. The thermostat will be set by the installer in connection with the com missioning, but it may be necessary to adjust it subsequently depending on the outdoor temperature.
Approximate thermostat scale settings:
Pos. 2 = 30°C 3 = 40°C for range 25-70° C 4 = 50°C 5 = 60°C or
Pos. 2 = 45°C 3 = 55°C for range 35-85° C 4 = 65°C 5 = 75°C
Please note that a label on the TC thermostat will indicate the temperature range (g. 6).
The setting values may vary depending on the operating conditions. It is important to set the supply temperature to the radiators as low as pos­sible. Use the radiator thermostats to regulate the room temperature.
NB! For houses that are heated exclusively with oor heating. The supply temperature should typically be set to approx. 30–35°C. ALWAYS refer to the instructions from the oor supplier.
Fig. 2
pin
Fig. 3
Fig. 4
or
TD200AVPL
Fig. 5A
-
Fig. 6
or
Range 35-85° CRange 25-70° C
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
Alternatively the HE temperature is controlled by a self-acting tem­perature controller Danfoss AVTB (Fig. 5B). The controller has a control valve, thermostatic actuator and handle for temperature setting. The thermostat will be set by the installer in connection with the commis­sioning, but it may be necessary to adjust it subsequently depending on the outdoor temperature. Approximate thermostat scale settings:
1.0 = 35 °C
1.5 = 45 °C
2.0 = 55 °C
2.5 = 65 °C
3.0 = 75 °C
Other variations with other types of thermostatic valves for control of the heating circuit may occur.
Electronic control
The temperature for the heating circuit can be controlled electroni­cally by a Danfoss ECL 110, a Danfoss ECL 210 or a Danfoss ECL 310 controller (Fig. 6). The supply temperature ist calculated by the con­troller on basis of the outdoor temperature. See the enclosed documentation for same.
Pump. Akva Lux II VX substations are factory tted with a pump (Fig. 7). The pump setting is established in connection with the commissioning. Gen­erally speaking, this setting is not to be altered. If it should nevertheless be necessary to change the pump setting, see the section concerning pumps in the installation and commissioning sections regarding the individual products. In the summer, you can switch o the power to the pump at the mains if you want to save electricity by not heating your home. Start-up and venting – see the installation and commissioning sections, if necessary.
Fig. 5B
AVTB
Fig. 6
or
ECL 210 / ECL 310ECL 110
Fig. 7
UPM3 AUTOUPM3 AUTO L
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
6.0 Installation instructions, Safety and Handling
Instructions
Please read these instructions carefully before installing and comis­sioning this substation. The manufacturer accepts no liability for loss or damage resulting from failure to comply with these instructions for use. Read and follow these instructions carefully to prevent the risk of physi­cal injury and/or damage to peroperty. Exceeding the recommended operating parameters considerably increases the risk of personal injury and/or damage to property. Installation, commissioning and maintenance must be carried out by qualied and authorized personnel in compliance with the local safety regulations.
Once the station has been installed and is operating, there is normally no need to alter the settings or other functions. The district heating substation is very reliable and easy to operate.
Energy source
The substation is primarily designed for connection to district heating. Alternative energy sources can be used if the operating conditions are equivalent to district heating at all times.
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. The substation is to be connected to the household piping in a frost-free room, where the temperature does not exceed 50 °C and the relative humidity is not higher than 80%. The substation must no be covered, bricked in or otherwise cut o from access.
Choice of materials
Only use materials, that comply with local regulations.
Corrosion
The maximum chloride compounds of the medium must not be higher than 300 mg/l. The risk of corrosion increases considerably if the recom­mended chloride content is exceeded.
Safety valve(s)
Installation of safety valve(s) must always be in compliance with local regulations.
Noise level.
≤ 55 dB.
PTC2+P controller for domestic hot water
The controller is preset from factory and sealed with a red sticker. This sealing must not been broken. The warranty becomes void if the sealing is broken.
Storage
Before installation, the units must be stored in a dry, heated (i.e. frost­free) room. (Relative humidity max. 80% and storage temperature 5-70 °C). The units must not be stacked higher than the limit at the factory (max. 8 layers) Units supplied in cardboard packaging must be lifted using the handles incorporated 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.
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.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
Connection
It must be possible to cut o all energy sources to the unit - includ­ing electrical connections - at all times.
Potential equalization/grounding
Potential equalization is an electrical equalizer connection to secure against user contact with dangerous voltage, which may occur for example between two piping systems. Potential equalization reduces corrosion in heat exchangers, water heaters, district heating units and plumbing installations. Equalization of potentials should be eected according to local regulations.
Warning! Hot surfaces
Parts of the substation may be very hot and can cause burn inju­ries. 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 120°C (130°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.
* the substation can work temporarily at130°C.
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 appropri­ate assistance. If the domestic hot water is discoloured or malodorous, 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.
NB! - Tightening of connections
Before mounting of the substation, ALL pipe connections MUST be retightened, as vibrations during transport may have caused leaks. Once the substation has been put into operation ALL pipe connections MUST be pressure tested for leaks and retightened once more if necessary. DO NOT OVERTIGHTEN THE PIPE CONNECTIONS – see page 14, “Test & connections”.
Handling
We recommend that you wear suitable safety footwear while handling and installing the substation.
1111
Instructions for installation and use Akva Lux II VX substations
7.0 Installation instructions - Getting started
Connect the substation to the household piping in accordance with the labelling at the bottom and/or in accordance with the instruc­tions in this manual.
If the system features DHW recirculation, a recirculation connec­tion must be established on the substation. The circulation set
is optional equipment, which must be ordered separately and mounted on site.
We recommend establishing recirculation BEFORE mounting the substation on the wall.
For instructions about recirculation connection, see page 20-21.
Commissioning
Please note that from factory the substation is prepared for connection in bottom of the substation.
1. The ball valves, which are supplied loose with the substation, can be mounted either on the top connections or bottom connec­tions. For connection in top, demount the plugs from the top con­nections and mount them on the bottom connections.
(Please see instruction on page 14 for further information)
2. For connection in TOP for DCW and DHW please note that this includes relocation of the built-in blind plates BEFORE mounting the substation on the wall. (Please see instruction on page 15 for further information).
3. If the household piping system features domestic hot water recirculation, the substation must be connected to the recircu­lation system. See pages 20-21 for further information about DHW recirculation.
4. The substation is prepared for wall mounting. Mount the sub­station on a solid wall using two sturdy bolts, screws, expan­sion bolts or similar.
5. Close all shut-o valves in the substation before connecting it/ them to the household piping.
6. Mount the district heating meter (see page 16).
7. IMPORTANT! Tighten all pipe connections, as they may have loosened during transport and handling.
8. On systems that feature a safety valve, establish a drain con­nection in compliance with the applicable legislation.
9. Fill the heat exchanger / the system with water according to the instructions on pages 18 and 19 until the manometer shows a working pressure, which corresponds to the system height + approx. 5 m (approx. 1.2 - 1.5 bar).
12. Pressure test the entire system for leaks in accordance with the applicable regulations.
13. Connect pump and automatic components, if any, to the elec­tricity supply, but do not switch on the power.
14. Heat the system and vent the radiator circuit/heating side thoroughly on the radiators and the air valve, if any.
15. For substations, which include zone valve, remember
to remove the red split on the position indicator of the zone valve.
16. Now switch on the pump and automatic components, if any.
10. Finally open the ball valve for the DH supply and return ow and heat up the system.
11. Check the substation and the household piping thoroughly for leaks.
12
DKDHR VI.GP.Q3.02 Danfoss District Energy
17. Finish by adjusting the substation in accordance with the instruction manuals.
Heating and cooling the substation may cause leaks. Therefore it may be necessary to retighten the connections in the period after commissioning.
Instructions for installation and use Akva Lux II VX substations
8.0 Installation instructions, general
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 ap­plicable 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 and secure it to a solid wall using 2 sturdy bolts, screws or expansion bolts positioned in the two keyholes in the mounting plate. 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 instruc­tions in this manual.
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 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 over­tightening or failure to retighten connections are not covered by the warranty.
Variable connections possibilities
The Akva Lux II VX substations oer variable connection possibili­ties, as connections of pipes can be established in the top or in the bottom of the substation. - Upon delivery the substation is prepared for connction in bottom of the substation. Please note that the ball
valves are supplied loose and must be mounted on site.
For change of connection from bottom to top, demount plugs on connection pipes in top of substation and ball valves on connection pipes in bottom of substation, and mount plugs in connection pipes in bottom of substation and ball valves on connection pipes in top of substation.
These variable connection possibilities makes it possible to establish some of the connections in the top and others in the bottom of the substation. This may be desirable in some cases.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
PLEASE NOTE!
Remember to use gaskets when establishing connection in top of unit.
DCW
If there is a need for a domestic cold water outlet in top of the unit, remove the blind plate in pos. A and demount the plug in top of the unit.
For DCW inlet in top of the unit, remove the plug in top of the unit and the blind place in pos. A. Mount the ball valve in top and use the plug for plugging in the bottom (remember gaskets).
DHW
For DHW outlet in top of the unit, remove the blind plate and gasket from Pos. B and relocate to Pos. C - see photos to the right. The blind plate should be installed in Pos. C to prevent a pocket of standing water that at worst can produce dangerous bacteria. Therefore, it is extremely important to install the blind plate as shown. Also move the plug from the top connection to the DHW outlet in the bottom of the unit and mount the ball valve in top (remember gaskets).
DHW both up and down The unit can be connected with piping both up and down for the do­mestic hot water. Remove blind plate in pos. B and plug in top of unit.
DCW
DHW
A
Demount blind plate
Heating (HE)
The unit can be connected with piping both up and down on the heating side. Remove the plugs in top of unit, and establish connec­tion upwards.
Expansion vessel
The Akva Lux II VX substations are equipped with an expansion vessel, which is factory set to 0,5 bar.
DHW
Demount blind plate
B
Mount blind
C
plate here
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Fitting piece(s) for heat meter(s).
The Akva Lux II VX substations are equipped with tting piece(s) for heat meter in both DH supply and return (leak detection) or only in DH return.
The tting piece(s) can be either exible size 3/4 x 110 - 165 mm or xed size 3/4” x 110 mm.
Variations with other dimensions may occur.
Fitting of heat meter in substation with exible tting piece size 3/4 x 110 - 165 mm
Fitting of heat meter in DH return - (Fig. 1)
The heat meter can easily be tted on site as follows:
- Close the ball valves on the district heating and the heating lines.
- Loosen the union nuts at both ends of the nipple pipe 24 remove nipple pipe 24
1
and insert heat meter and tighten
1
.
- do not forget gaskets.
- For heat meters with an overall length of more than110 mm the exible tting pipe 24
2
must be loosened and displaced,
so that it corresponds to the size of the heat meter.
- Tighten union nut/locknut.
- After mounting of heat meter remember to check and tighten all pipe connections before commissioning the heat meter.
For tting of heat meter in DH supply (Fig. 2) please follow the above instructions.
For tting of heat meter in both DH supply and return, please follow the above instructions.
Fig. 1
2
1
24
24
Loosen union nut/locknut and the exible pipe 242 is adjustable from 110 to 165 mm.
Fig. 2
2
1
24
24
Loosen union nut/locknut and the exible pipe 242 is adjustable from 110 to 165 mm.
Fig. 3
Fitting of heat meter(s) in substation with xed tting piece size 3/4 x 110 mm
Fitting of heat meter(s) - (Fig. 3)
The heat meter can easily be tted on site as follows:
- Close the ball valves on the district heating and the heating lines.
- Loosen the union nuts at both ends of the tting piece13b and remove it.
- Fit the heat meter, - remember to insert gaskets.
- After mounting of heat meter remember to check and tighten
all pipe connections before commissioning the heat meter.
Mounting of temperature sensor
As standard the heat meter is supplied with temperature sensors for measuring the supply and return ow temperatures.
The Akva Lux II VX substations are prepared for mounting of tem­perature sensors with M10x1 connection (see photo to the right).
The supply ow sensor is mounted in the sensor pocket on DH sup­ply (pos. A)
- demount M10 plug (pos. A)
- insert one temperature sensor in the sensor pocket
- tighten temperature sensor union nut
Mount the return ow sensor in the heat meter housing (pos. C) or in the sensor pocket on DH return (pos. B).
13b
Fig. 4
A
B
Pipe bushing ½”/M10x1 incl. plug M10
C
Please note: Some variant are supplied with ½” plug.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
Electrical connection
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 disconnected during maintenance, cleaning and repairs or in the event of an emergency.
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.
Controller ECL 110/210/310
Supply voltage: 230 V a.c. - 50 Hz Voltage range: 207 to 244 V a.c. (IEC 60038) Power consumption: 5 VA Load on relay outputs: 4(2) A - 230 V a.c Load on triac outputs: 0,2 A - 230 V a.c.
Actuator AMV13 / AMV 150
Supply voltage 230 V a.c. - 50 Hz Power consumption 2 / 7 VA For further information please refer to the enclosed instructions.
Pumps (UPM3 AUTO L & UPM3 AUTO)
Supply voltage: 230 V a.c. - 50 Hz Protection class: IP44 Power consumption: Max. 52 Watt For further information please refer to the enclosed instructions for the circulation pumps.
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.
For ECL 110: Connect the cable ends to ECL controller in terminal 1 and 2.
For ECL 210: Connect the cable ends to ECL controller in common ground termi­nal and in terminal 29.
For ECL 310: Connect the cable ends to ECL controller in common ground termi­nal and in terminal 29.
Access to ECL base part
Access to the base part for connection of outdoor sensor or the like is obtained by pulling the lock (pin) down with a screwdriver until a yellow line is visible on the lock. Then, the front piece can easily be removed. Lock by pressing the lock (pin) up.
Common ground terminal
Lock / pin
16
DKDHR VI.GP.Q3.02 Danfoss District Energy
ECL Comfort 210 base part
Instructions for installation and use Akva Lux II VX substations
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 starting-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,
- recirculation, if any, has been established.
Fill the heat exchanger / the system with water:
Akva Lux II VX with ll valve
(placed on the DHW pipe (see product introduction page 3), built-in from factory (photo 1)).
This type of substation does not include a permanent water ll­ing pipe, but is supplied with a exible water lling pipe, which is supplied loose (may be attached to the ll valve as shown on enclosed photo 1), and which must be mounted on site as shown on photo 3.
1
Fill valve
Filling pipe
The pump must be switched o when lling the system with water.
Demount the plugs M1 and M2 on HE supply and DHW (photo
2) and mounting the exible pipe as shown on photo 3).
Mount the exible water lling pipe and open the ball valves
for the HE supply and return ow as well as the ball valve for DCW.
Carefully open the ll valves V1 and V2 and ll the system with
water and at the same time vent the system.
Fill the heat exchanger / the system with water* until the ma-
nometer shows a working pressure, which corresponds to the system height + approx. 5 m (approx. 1.2 - 1.5 bar).
Close the ll valves, demount the pipe and remount the plugs
M1 and M2 (remember gaskets).
Finally open the remaining ball valves and heat up the sy-
stem.
After lling and heat-up of the system it should be vented by
means of the air vents on the substation, if any and on the ra­diators.
For substations, which include zone valve, remember to re-
move the red split on the position indicator of the zone valve.
Then switch on the pump.
2 3
V2
V1
M2
M1
Water lling pipe
Manometer
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
Akva Lux II VX without ll valve
Filling of water to the heating system must be done outside the substation, typically by connection to a cold water supply in the household installation.
The pump must be switched o when lling the system with water.
Open the ball valves for the HE supply and return ow and ll the system with water and at the same time venting the sys­tem.
Fill the heat exchanger / the system with water until the ma­nometer shows a working pressure, which corresponds to the system height + approx. 5 m (approx. 1.2 - 1.5 bar).
Finally open the remaining ball valves 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, if any and on the ra­diators.
For substations, which include zone valve, remember to re­move the red split on the position indicator of the zone valve.
Then switch on the pump.
Manometer and 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 valve opens at 3 bar)
If system pressure drops dramatically within a short time, heating system should be examined for leakage, - this includes checking the factory set pressure of the expansion vessel.
Rell line (option) If water needs to be added to the system a rell line is applicable on some markets, if in accordance with all local regulations, ­please check with your heating supplier.
The rell line includes a pressure reducing valve type 11 BIS, which will open, when the ow/pressure on the secondary side drops.
The pressure adjusting valve is adjustable and is supplied pre-set at 3 bar.
The rell line with pressure reducing valve can be mounted in top or bottom of the substation.
- Mount the rell line
- Open the ball valves
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
9.0 Recirculation connection
If the household piping system features domestic hot water recirculation, the substation must be connected to the recirculation system. The circulation set for recirculation connection is not standard equipment. The set must be purchased as extra equipment.
We recommend establishing recirculation BEFORE mounting the substation on the wall.
Connect the recirculation pipe from the xed household piping to the hexagon nipple at the bottom of the substation, - see photo to your right .
You must always t a pump and a non-return valve to the recir­culation pipe, with ow direction towards the substation.
(This is not part of the delivery and must be mounted on site).
If a time-controlled pump is used, we recommend setting of the circulation water temperature to approx. 35°C. Please note that if the circulation pump (outside the substation) is stopped for a protracted period, we recommend that the bypass thermostat is shut o for the same period.
The circulation set and and control change from bypass to DHW recirculation will be described thoroughly on page 21.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
1919
Instructions for installation and use Akva Lux II VX substations
9.1 Installation instructions - recirculation
A1
A2
B
E
D
C2
Please note that this circulation set applies to substations with 4 as well as 6 mm capillary tube.
Therefore excess components may occur and we ask you please to ignore these.
You must always t a pump and a non-return valve to the recircu­lation pipe, with ow direction towards the susbstation. (This is not part of the delivery and must be mounted on site).
Fig. 1+ 2 In substations, equipped with ECL controller, it may be necessary to remove the actuator in order to prepare the substation for connec­tion to the recirculation system.
Disassemble in points 1, 2 and 3, and move actuator and pipe section to the left (g. 1). If it is necessary to create additional space loosen nut 4 (g. 2) by the bypass valve, allowing it to be turned to right.
(Please note that the above instructions serve as guideline only, as substation execution may vary and therefore variants with another component placement may be supplied).
B1
C1
1
2
4
3
Fig. 1 Fig. 2
Fig. 3 Fig. 4
C
C
Then follow below instructions and nish by mounting the actuator and pipe section and possibly bypass valve again. Remember gaskets!
Fig. 3 Demount nipples/plugs (6 mm Allen Key) from controller.
Fig. 4 Mount circulation hose end A1 and nipple B in controller (for sub­statios with 6 mm capillary tube nipple B1 is to be mounted.
Fig. 5 Demount capillary tube from T-piece (Pos C).
Fig. 6 Plug the hole in pos. C with 4 mm screw plug C1 (substation with 4 mm capillary tube) or with union nut and ball plug C2 (substations with 6 mm capillary tube).
Fig. 7 Fit the capillary tube end from pos. C in nipple B (alternatively B1 for 6 mm capillary tube) in DHW controller by means of union nut and cutting ring.
Fig. 5 Fig. 6
Fig. 7 Fig. 8
Fig. 8 Fix circulation hose end A2 and hexagon nipple E in mounting plate as shown.
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
7369316-0 SIBC VI.CB.T1.6K © Danfoss 05/03 1
Instructions
10.0 Description of the Akva Lux II VX variants
10.1 Akva Lux II VX (thermostatic control) - 1 HE circuit and instantaneous domestic hot water heater
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 with instantaneous water heater for domestic hot water heating. For wall-mounting and with variable connection possibilities.
The HE supply temperature is controlled by a self-acting thermo­stat thermostat T°C 200.
Please note: Your substation may look dierent than the substation shown, as variants with other components may be supplied. Instructions for the tted components will be supplied together with the substation.
Dierential pressure controller
(Standard on systems with self-acting thermostat). The dierential pressure controller reduces the high unctuations in pressure in the district heating network, ensuring constant ope­rating pressure across the substation possible operating conditions for radiator thermostats, which ena bles individual control of the room temperature.
and thereby ensures the best
-
Dierential pressure controller AVPL
AVPL is a self-acting dierential pressure controller for PN 16 with adjustable dierential pressure setting. Der AVPL keeps a constant dierential pressure even with a variable system resistance. The AVPL can be set at any dierential pressure between 0,05 bar and 0,25 bar. The preset factory setting of the controller is 0,1 bar. To alter the dierential pressure, use an Allen Key NV 3. 1 full turn is equivalent to approx. 0.01 bar. The arrow on the control­ler top shows that the setting of the dierential pressure is increased when it is turned clockwise and reduced when turned counter-clock­wise. The controller settings can be changed in accordance with the enclosed producer instructions.
Dierential pressure controller (PN 16) AVPL Return mounting, adjustable setting.
AVPL 1.0/1.6
1 5
2 6
34 7
r kPa
20 25 19 24 18 23 17 22 16 21 15 20 14 19 13 18 12 17 11 16 10 15 9 14 8 13 7 12 6 11 5 10 49 38 27 16 05
Alternative dierential pressure controller TD200
Alternatively a diferential pressure controller type TD200 can be mounted in the substation. This type of dierential pressure controller is preset from factory and should not be adjusted afterwards.
AVPL
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
Control of heating circuit
The temperature for the heating circuit is controlled by a thermo­static valve T°C 200. Approximate thermostat scale setting for range 25-70° C: Pos. 2 = 30°C 3 = 40°C 4 = 50°C 5 = 60°C 6 = 70°C
Please note that the values are intended as a guide and may vary according to the district heating operating conditions. Approximate supply temperatures at: 10 °C outdoor temperature approx. 40°C 0 °C outdoor temperature approx. 55°C
-10 °C outdoor temperature approx. 65°C
Please note that a label on the thermostatic valve will indicate the temperature range.
It is important to keep the supply temperature to the radiators as low as possible (the temperature is indicated by thermometer mounted in HE return). The room temperature is controlled by radiator ther­mostats.
Floor heating (substation with heat exchanger for oor heating) It is important to keep the supply temperature to the oor heating system as low as possible, approx. 30-35° (the temperature is indi­cated by thermometer mounted in HE return),
The T°C is typically set in pos. 2-2.5 (intended as a guide). The supply temperature should not exceed 40°C (ALWAYS refer to the instructions of the oor supplier)
Alternatively the HE temperature is controlled by a self-acting tem­perature controller Danfoss AVTB. The controller has a control valve, thermostatic actuator and handle for temperature setting. The thermo­static actuator consists of a bellows, capillary tube and sensor. The AVTB closes on rising temperature. The thermostat will be set by the installer in connection with the com­missioning, but it may be necessary to adjust it subsequently depend­ing on the outdoor temperature. Approximate thermostat scale settings:
1.0 = 35 °C
1.5 = 45 °C
2.0 = 55 °C
2.5 = 65 °C
3.0 = 75 °C
Other variations with other types of thermostatic valves for control of the heating circuit may occur.
Circulation pump, heating circuit
See item 11 on page 37 for more information about circulation pump.
AVTB
22
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
088R0248| 15.12.2005 | Version 03
VI.SB.H3.02 12-2005 Produced by Danfoss Industri Service 05.09 JJ-Bi.DS
Electronic programmable room thermostat (option) As an option the Akva Lux II VX with thermostatic control can be delivered with a zone valve, which enables connection to an elec-
tronic programmable room thermostat.
The thermal actuator of the zone valve is switched on by an exter­nal contact from the room thermostat, and starts to open or close the valve. The actuating movement is achieved by means of an electrically heated expansion element. When the heating current is switched o, the actuator shuts or opens the valve.
The actuator is equipped with a visual position indicator to show the open or closed position of the valve.
INSTRUCTIONS
TWA NC
TWA-A
For Danfoss RA valves
TWA-V
For Danfoss RAV/VMT valves
TWA-L
For Danfoss RAVL valves
TWA-K
For Heimeier/MNG/Oventrop valves with M30 × 1.5 connection, generally as per attached drawing. Other valves must be veried individually to ensure correct valve closing measurement and valve top geometry.
TWA-D
For Danfoss RTD valves
*) 24 V Class II transformer (SELV) **) 230 V max. 3 A pre-fuse
If the substation is connected to a room thermostat the tempera­ture is controlled by the room thermostat and radiator thermostats. Please note that the room thermostat keeps the temperature at a constant level in the whole apartment according to the set room parameters.
Consult additional maintenance instructions for room thermostat for further information. It is recommended to avoid fully opened thermostats on some radiators and fully shut-o on others. Higher temperature at the top and lower temperature at the bottom part of radiators means that the system operation is correct. To keep cor­rect temperature and friendly microclimate for human beings in the apartment, it is recommended to ensure regular airing in rooms.
Rell line (option)
A district heating rell line is applicable on some markets.
See page 19 for more detailed description.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
7369316-0 SIBC VI.CB.T1.6K © Danfoss 05/03 1
Instructions
10.2 Akva Lux II VX (thermostatic control and optional juntion box + zone valve) - 1 HE circuit and instantaneous DHW heater
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 with instantaneous water heater for domestic hot water heating. For wall-mounting and with variable connection possibilities.
The HE supply temperature is controlled by a self-acting thermo­stat thermostat T°C 200.
Please note: Your substation may look dierent than the substation shown, as vari­ants with other components may be supplied. Supplier instructions for the tted components will be supplied together with the substation.
Dierential pressure controller
(Standard on systems with self-acting thermostat). The dierential pressure controller reduces the high unctuations in pressure in the district heating network, ensuring constant ope­rating pressure across the substation possible operating conditions for radiator thermostats, which ena bles individual control of the room temperature.
and thereby ensures the best
-
Dierential pressure controller AVPL
AVPL is a self-acting dierential pressure controller for PN 16 with adjustable dierential pressure setting. Der AVPL keeps a constant dierential pressure even with a variable system resistance. The AVPL can be set at any dierential pressure between 0,05 bar and 0,25 bar. The preset factory setting of the controller is 0,1 bar. To alter the dierential pressure, use an Allen Key NV 3. 1 full turn is equivalent to approx. 0.01 bar. The arrow on the control­ler top shows that the setting of the dierential pressure is increased when it is turned clockwise and reduced when turned counter-clock­wise. The controller settings can be changed in accordance with the enclosed producer instructions.
Dierential pressure controller (PN 16) AVPL Return mounting, adjustable setting.
AVPL 1.0/1.6
1 5
2 6
34 7
r kPa
20 25 19 24 18 23 17 22 16 21 15 20 14 19 13 18 12 17 11 16 10 15 9 14 8 13 7 12 6 11 5 10 49 38 27 16 05
Alternative dierential pressure controller TD200
Alternatively a diferential pressure controller type TD200 can be mounted in the substation. This type of dierential pressure controller is preset from factory and should not be adjusted afterwards.
AVPL
24
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Control of heating circuit
The temperature for the heating circuit is controlled by a thermo­static valve T°C 200. Approximate thermostat scale setting for temperature range 35-85°C: Pos. 2 = 45°C 3 = 55°C 4 = 65°C 5 = 75°C
Please note that the values are intended as a guide and may vary according to the district heating operating conditions.
It is important to keep the supply temperature to the radiators as low as possible (the temperature is indicated by thermometer mounted in HE return). The room temperature is controlled by radiator ther­mostats.
Please note that a label on the thermostatic valve will indicate the temperature range.
Circulation pump, heating circuit
See item 11 on page 36 for more information about circulation pump.
Electronic programmable room thermostat (option)
As option the Akva lux II with thermostatic control can be delivered with a zone valve and junction box, as shown in the photo on page
24. This enables connection to an electronic programmable room thermostat.
The thermal actuator of the zone valve is switched on by an exter­nal contact from the room thermostat, and starts to open or close the valve. The actuating movement is achieved by means of an electrically heated expansion element. When the heating current is switched o, the actuator shuts or opens the valve.
The actuator is equipped with a visual position indicator to show the open or closed position of the valve.
If the substation is connected to a room thermostat the tempera­ture is controlled by the room thermostat and radiator thermostats. Please note that the room thermostat keeps the temperature at a constant level in the whole apartment according to the set room parameters. Consult additional maintenance instructions for room thermostat for further information. It is recommended to avoid fully opened thermostats on some radiators and fully shut-o on others. Higher temperature at the top and lower temperature at the bottom part of radiators means that the system operation is correct. To keep cor­rect temperature and friendly microclimate for human beings in the apartment, it is recommended to ensure regular airing in rooms.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
2525
Instructions for installation and use Akva Lux II VX substations
Electrical junction box
The electrical junction box houses the internal electrical connections of the substation and allows the wiring in the substation to interface with the main power supply provided by a local utility.
For the Akv Lux II VX with junction box, the pump and zone valve are pre-wired to the junction box, and the junction box is also prepared for connection of a room thermostat.
In case of oor heating a safety switch is also connected in the junction box, securing that zone valve and pump will close in case of overheat­ing.
See enclosed wiring diagram for more information.
Rell line (option)
A district heating rell line is applicable on some markets.
See page 19 for more detailed description.
26
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
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
7369316-0 SIBC VI.CB.T1.6K © Danfoss 05/03 1
10.3 Akva Lux II VX (ECL110) - 1 HE circuit and instantaneous DHW heater
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 with instantaneous water heater for domestic hot water heating. For wall-mounting and with variable connection possibilities.
The temperature for the heating circuit is controlled by a Danfoss ECL controller in combination with an electronic actuator. The ECL controller acts as the brain of the heating system. It lets you easily control and optimise system performance and operation.
Please note: Your substation may look dierent than the substation shown, as variants with other components may be supplied. Supplier instructions for the tted components will be supplied together with the substation.
Heating circuit
The temperature for the heating circuit is controlled 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 auto­matically 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
Dierential pressure controller AVPL
AVPL is a self-acting dierential pressure controller for PN 16 with adjustable dierential pressure setting. Der AVPL keeps a constant dierential pressure even with a variable system resistance. The AVPL can be set at any dierential pressure between 0,05 bar and 0,25 bar. The preset factory setting of the controller is 0,1 bar. To alter the dierential pressure, use an Allen Key NV 3. 1 full turn is equivalent to approx. 0.01 bar. The arrow on the control­ler top shows that the setting of the dierential pressure is increased when it is turned clockwise and reduced when turned counter-clock­wise. The controller settings can be changed in accordance with the enclosed producer instructions.
Dierential pressure controller (PN 16) AVPL Return mounting, adjustable setting.
Instructions
AVPL 1.0/1.6
1 5
2 6
r kPa
20 25 19 24 18 23 17 22 16 21 15 20 14 19 13 18 12 17 11 16 10 15 9 14 8 13 7 12 6 11 5 10 49 38 27 16 05
AVPL
34 7
Danfoss District Energy VI.GP.Q3 .02 DKDHR
2727
Instructions for installation and use Akva Lux II VX substations
INSTRUCTIONS
065R9075
Control of heating circuit
For control of the heating circuit the Akva Lux II VX (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 by turn­ing the manual operation knob on top of actuator counter-clockwise.
Please see enclosed instructions, Electrical actuator AMV 150 2-way valve VS 2
Manual operation (AMV 150)
VS2 2-way
DN L (mm)
15 65
20 70
25 75
DN L1(mm)
15 131
20 142
25 159
DN L2(mm)
15 139
20 154
25 159
Instructions AMV 150
065R9075
AMV 150 + AMV 150 + AMV 150 + VS2 (DN 15) VMV AVQM (DN 15)
Actuators for three point control AMV 150 www.danfoss.com Page 2
ENGLISH
Motorer til 3-punkts styring AMV 150 www.danfoss.dk Side 3
DANSK
Stellantriebe für 3-Pkt.- Eingangssignal AMV 150 www.danfoss.de Seite 3
DEUTSCH
Motor för 3-punktsreglering AMV 150 varme.danfoss.se Sida 4
SVENSKA
Servomotor met 3-puntssturing AMV 150 www.danfoss.nl Pagina 4
NEDERLANDS
Pavaros trijų padėčių valdymui AMV 150 www.danfoss.lt 5 puslapis
LIETUVIŲ K.
Motori trīs punktu kontrolei AMV 150 www.danfoss.com Lpp. 5
LATVISKI
Szelepmozgatók hárompontos szabályozáshoz AMV 150 www.danfoss.com 6. oldal
MAGYAR
Servopohony s tříbodovým regulačním signálem AMV 150 www.danfoss.cz Strana 6
ČESKY
Siłowniki sterowane sygnałem 3-punktowym AMV 150 www.danfoss.pl Strona 7
POLSKI
Электроприводы для трехпозиционного регулирования AMV 150
DN L3(mm)
15 69
20 74
25 79
РУССКИЙ
www.danfoss.ru Стр аниц а 7
VS2
Press and hold the button (on the bottom side of the actuator) during manual operation.
Option
As alternative to the AVPL dierential pressure controller and the 2-vay valve VS 2 the Akva Lux II VX (ECL 110) can be supplied with a self-acting ow controller with integrated control valve Danfoss AHQM, for control of the heating circuit. In this case instructions for the AHQM will be enclosed.
Safety function (option) In case of oor heating the oor heating circuit can as an option be supplied with a safety thermostat Jumo AT and an electrical actua­tor AMV 13 instead of AMV 150 for protection against overheating.
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1
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AHQM
AMV 13
28
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Circulation pump, heating circuit
See item 11 on page 36 for more information about circulation pump.
Rell line (option)
A district heating rell line is applicable on some markets.
See page 19 for more detailed description.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
2929
Instructions for installation and use Akva Lux II VX substations
10.4 Akva Lux II VX HWP (ECL 210/A237)
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 with instantaneous water heater for domestic hot water heating. For wall-mounting and with variable connection possibilities.
The temperature for the heating circuit is controlled by a Danfoss ECL controller in combination with an electronic actuator. The ECL controller acts as the brain of the heating system. It lets you easily control and optimise system performance and operation.
Please note: Your substation may look dierent than the substation shown, as variants with other components may be supplied. Supplier instructions for the tted components will be supplied together 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. Various applications can be loaded by means of the ECL Application Key, and it is possible to update the controller with new application software.
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 en­closed producer instructions for the mounted controller.
See ECL Application Key Box with ECL Comfort 210/310 user guide and mounting guide, for further information.
We also refer to Danfoss Installation Guide für ECL Comfort 210, application A230, which can be found on www.heating.danfoss.com
ECL application key
30
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Control of heating circuit
For controlling the heating circuit the Akva Lux II VX HWP is supplied with a self-acting ow controller with integrated control valve Danfoss AHQM and an electrical actuator AMV 150, which in combination with the ECL controller controls the heating circuit. The controller closes when set max. ow is exceeded. The ow-controller is equipped with excess pressure safety valve, which protects the actuator from too high dierential pressure.
The electrical actuator has undergone a functional test from fac­tory. In case of operating disturbances the actuator can be closed manually turning the manual operation knob on top of actuator counter-clockwise.
Please see enclosed instructions, Electrical actuator AMV 150 Flow-controller with integrated control valve AHQM
Manual operation (AMV 150)
Instructions AVQM, AVQMT – PN 16, 25 / DN 15-50
AVQM (PN 16) AVQM (PN 25) AVQMT (PN 25) AVQMT/AVT (PN 25)
DN 15-32 DN 15- 50 DN 32-50 DN 15-5 0 DN 32-50 DN 15-50 DN 32-50 ∆p = 0.2 p = 0.2 p = 0.2 p = 0.2 p = 0.2 p = 0.2 p = 0.2
Flow (and temperature) controller with integrated control
ENGLISH
valve AVQM, AVQMT
Flow- (og temperatur-)regulator med indbygget motorventil
DANSK
AVQM, AVQMT
Volumenstrom (und Temperatur-) Regler mit Motorstellventil
DEUTSCH
AVQM, AVQMT
Regulador de caudal (y temperatura) con válvula de control
ESPAÑOL
integrada AVQM, AVQMT
Regulator pretoka (in temperature) z regulacijskim ventilom
SLOVENŠČINA
AVQM, AVQMT
Regulator przepływu (i temperatury) z zaworem
POLSKI
regulacyjnym AVQM, AVQMT
Térfogatáram(és hőmérséklet) szabályozó, motoros
MAGYAR
szabályozó-szeleppel egybeépítve AVQM, AVQMT
Uputstvo AVQM, AVQMT-PN 16, 25/DN 15-50 grejanje.danfoss.com Strana 21
SRPSKI
www.danfoss.com Page 7
www.danfoss.dk Side 9
www.danfoss.de Se it e 11
www.danfoss.es Página 13
www.danfoss.si Stran 15
www.danfoss.pl Strona 17
www.danfoss.hu Oldal 19
Instructions AMV 150
Actuators for three point control AMV 150 www.danfoss.com Page 2
ENGLISH
Motorer til 3-punkts styring AMV 150 www.danfoss.dk Side 3
DANSK
Stellantriebe für 3-Pkt.- Eingangssignal AMV 150 www.danfoss.de Seite 3
DEUTSCH
Motor för 3-punktsreglering AMV 150 varme.danfoss.se Sida 4
SVENSKA
Servomotor met 3-puntssturing AMV 150 www.danfoss.nl Pagina 4
NEDERLANDS
Pavaros trijų padėčių valdymui AMV 150 www.danfoss.lt 5 puslapis
LIETUVIŲ K.
Motori trīs punktu kontrolei AMV 150 www.danfoss.com Lpp. 5
LATVISKI
Szelepmozgatók hárompontos szabályozáshoz AMV 150 www.danfoss.com 6. oldal
MAGYAR
Servopohony s tříbodovým regulačním signálem AMV 150 www.danfoss.cz Strana 6
ČESKY
Siłowniki sterowane sygnałem 3-punktowym AMV 150 www.danfoss.pl Strona 7
POLSKI
Электроприводы для трехпозиционного регулирования AMV 150
РУССКИЙ
AMV 150 + AMV 150 + AMV 150 + VS2 (DN 15) VMV AVQM (DN 15)
www.danfoss.ru Стр аниц а 7
Circulation pump, heating circuit
See item 11 on page 36 for more information about circulation pump.
Safety function (option) In case of oor heating the oor heating circuit can as an option be supplied with a safety thermostat Jumo AT and an electrical actua­tor AMV 13 instead of AMV 150, for protection against overheating.
AHQM
Press and hold the button (on the bottom side of the actuator) during manual operation.
,QVWUXFWLRQV
$09
5
$099096 $09$940 $099%
'+6076, (,+'DQIRVV
5
1
1
AMV 13
Rell line (option)
A district heating rell line is applicable on some markets.
See page 19 for more detailed description.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
3131
Instructions for installation and use Akva Lux II VX substations
10.5 Akva Lux II VX H2WP (ECL 210/A260) - 2 HE circuits + instantaneous DHW heater
Substation for indirect heating for single-family, semi-detatched and terraced houses as well as ats. With two heating circuits for radiator and oor heating and with instantaneous water heater for domestic hot water heating. For wall-mounting and with variable connection possibilities.
The temperature for the heating circuit is controlled by a Danfoss ECL controller in combination with an electronic actuator. The ECL controller acts as the brain of the heating system. It lets you easily control and optimise system performance and operation.
Please note: Your substation may look dierent than the substation shown, as variants with other components may be supplied. Supplier instructions for the tted components will be supplied together 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. Various applications can be loaded by means of the ECL Application Key, and it is possible to update the controller with new application software.
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 en­closed producer instructions for the mounted controller.
See ECL Application Key Box with ECL Comfort 210/310 user guide and mounting guide, for further information.
We also refer to Danfoss Installation Guide für ECL Comfort 210, application A260, which can be found on www.heating.danfoss.com
ECL application key
32
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
7369311-0 VI.52.D3.003-2005
INSTRUCTIONS
065R9179
Control of heating circuits
For controlling the heating circuit the Akva Lux II VX H2WP is supplied with a self-acting ow controller with integrated control valve Danfoss AHQM and an electrical actuator AMV 13, which in combination with the ECL controller controls the heating circuit. The controller closes when set max. ow is exceeded. The ow-controller is equipped with excess pressure safety valve, which protects the actuator from too high dierential pressure.
The electrical actuator has undergone a functional test from fac­tory.
Please see enclosed instructions, Electrical actuator AMV 13 Flow-controller with integrated control valve AHQM
Instructions AVQM, AVQMT – PN 16, 25 / DN 15-50
AVQM (PN 16) AVQM (PN 25) AVQMT (PN 25) AVQMT/AVT (PN 25)
DN 15-32 DN 15- 50 DN 32-50 DN 15-5 0 DN 32-50 DN 15-50 DN 32-50 ∆p = 0.2 p = 0.2 p = 0.2 p = 0.2 p = 0.2 p = 0.2 p = 0.2
Flow (and temperature) controller with integrated control
www.danfoss.com Page 7
valve AVQM, AVQMT
Flow- (og temperatur-)regulator med indbygget motorventil
www.danfoss.dk Side 9
AVQM, AVQMT
Volumenstrom (und Temperatur-) Regler mit Motorstellventil
www.danfoss.de Se it e 11
AVQM, AVQMT
Regulador de caudal (y temperatura) con válvula de control
www.danfoss.es Página 13
integrada AVQM, AVQMT
Regulator pretoka (in temperature) z regulacijskim ventilom
www.danfoss.si Stran 15
AVQM, AVQMT
Regulator przepływu (i temperatury) z zaworem
www.danfoss.pl Strona 17
regulacyjnym AVQM, AVQMT
Térfogatáram(és hőmérséklet) szabályozó, motoros
www.danfoss.hu Oldal 19
szabályozó-szeleppel egybeépítve AVQM, AVQMT
Uputstvo AVQM, AVQMT-PN 16, 25/DN 15-50 grejanje.danfoss.com Strana 21
SLOVENŠČINA
ENGLISH
DANSK
DEUTSCH
ESPAÑOL
POLSKI
MAGYAR
SRPSKI
,QVWUXFWLRQV
$09
5
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'+6076, (,+'DQIRVV
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1
1
Circulation pump, heating circuit
See item 11 on page 36 for more information about circulation pump.
Control of oor heating circuit
For controlling the oor heating circuit the Akva Lux II VX H2WP is supplied with a 3-way valve VMV and an electrical actuator AMV 150, which in combination with the ECL controller controls the oor heating circuit.
AHQM
AMV 13
The electrical actuator has undergone a functional test from fac­tory. In case of operating disturbances the actuator can be closed manually turning the manual operation knob on top of actuator counter-clockwise.
Please see enclosed instructions, Electrical actuator AMV 150 3-way seated mixing valve VMV
NC (normally closed) RAVK (only VMV DN 15, 20) ABV - NC
NO (normally open) ABV - NO
NC (normally closed) RAVK (only VMV DN 15, 20) RAVI (only VMV DN 15, 20) ABV - NC
NO (normally open) ABV - NO
VMV
065R9179
Instructions AMV 150
Actuators for three point control AMV 150 www.danfoss.com Page 2
ENGLISH
Motorer til 3-punkts styring AMV 150 www.danfoss.dk Side 3
DANSK
Stellantriebe für 3-Pkt.- Eingangssignal AMV 150 www.danfoss.de Seite 3
DEUTSCH
Motor för 3-punktsreglering AMV 150 varme.danfoss.se Sida 4
SVENSKA
Servomotor met 3-puntssturing AMV 150 www.danfoss.nl Pagina 4
NEDERLANDS
Pavaros trijų padėčių valdymui AMV 150 www.danfoss.lt 5 puslapis
LIETUVIŲ K.
Motori trīs punktu kontrolei AMV 150 www.danfoss.com Lpp. 5
LATVISKI
Szelepmozgatók hárompontos szabályozáshoz AMV 150 www.danfoss.com 6. oldal
MAGYAR
Servopohony s tříbodovým regulačním signálem AMV 150 www.danfoss.cz Strana 6
ČESKY
Siłowniki sterowane sygnałem 3-punktowym AMV 150 www.danfoss.pl Strona 7
POLSKI
Электроприводы для трехпозиционного регулирования AMV 150
РУССКИЙ
AMV 150 + AMV 150 + AMV 150 + VS2 (DN 15) VMV AVQM (DN 15)
www.danfoss.ru Стр аниц а 7
VMV
Manual operation (AMV 150)
Press and hold the button (on the bottom side of the actuator) during manual operation.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
3333
Instructions for installation and use Akva Lux II VX substations
Safety temperature monitor
The heating circuits can be supplied with a safety thermostat for protection against overheating.
Please see enclosed operating instructions Jumo AT
Circulation pump, oor heating circuit
The oor heating circuit comprises a circulation pump. See item 11 on page 36 for more information about circulation pump.
Rell line (option)
A district heating rell line is applicable on some markets.
See page 19 for more detailed description.
34
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
11.0 Circulation pump for HE
Grundfos Pump UPM3 Auto L
Grundfos UPM3 Auto L has 10 optional settings, which can be se­lected with the push-botton. See g. 1 - User interface.
The user interface is designed with a single push button, one red/ green LED and four yellow LEDs.
The pump is set from factory to Proportional pressure curve 3.
The user interface shows: * performance view (during operation)
- operation status
- alarm status * settings view (after pressing the button)
The LEDs show the power consumption for the pump. When the pump is running, LED 1 is green. The four yellow LEDs indicate the current power consumption (P1). See g. 2 - Performance view.
Fig. 1. User interface.
Fig. 2. Performance view.
Fig. 2. Performance view.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
3535
Instructions for installation and use Akva Lux II VX substations
Check the pump setting by pressing the button once. The LEDs will briey show the pump setting before changing back to showing the power consumption. See g. 3 - Pump settings.
Fig. 3. Pump settings
If the pump setting does not give the desired distribution of heat in the rooms of the house, change the pump setting. See g. 4 - Re-
commended pump settings.
To change the pump setting, choose the setting you want (see g
3), press the button down for more than 2 seconds (less than 10)
and the LEDs will ash. Then press the button until the LEDs shows the desired setting. The LEDs ash and when they stop the new set­ting is saved. The LEDs return to show power cunstumption. Please note that if the LEDs do not ash after 2 seconds, possibly the pump setting is locked. To unlock, press the button down for more than 10 seconds. LEDs will ash and the pump is unlocked. To lock the pump, repeat the procedure.
For more information, see enclosed Grundfos instructions.
grundfos INSTRUCTIONS
UPM3
AUTO L
1
In case the 1
st
LED is red the pump has detected one or more alarms. See g. 5 - Alarm status. When there is no active alarm anymore the user interface switches back to operation mode shortly and then showing power consumption.
Fig. 4. Recommended pump settings
UMP3 15-70 AUTO L
Application Recommended pump mode
Radiator two-pipe system
Radiator one-pipe system
Floor heating 1. Constant pressure mode
Ventilation 1. Constant curve mode, speed 1-2-3-4
Domestic hot water*
Fig. 5. Alarm status
1. Proportional pressure mode
1. Constant curve mode, speed 1-2-3-4
2. Constant pressure mode
2. Constant pressure mode
1. Constant curve mode, speed 1-2-3-4
* Bronze or stainless steel pump housing
36
DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Grundfos Pump UPM3 Auto
Grundfos UPM3 Auto has 12 optional settings, which can be select­ed with the push-botton. See g. 1 - User interface.
The pump is set from factory to Autoadapt maximum curve propor­tional pressure.
The user interface shows: * performance view (during operation)
- operation status
- alarm status * settings view (after pressing the button)
The LEDs show the power consumption for the pump. When the pump is running, LED 1 is green. The four yellow LEDs indicate the current power consumption (P1). See g. 2 - Performance view.
Fig. 1. User interface.
Fig. 2. Performance view.
Fig. 2. Performance view.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
3737
Instructions for installation and use Akva Lux II VX substations
Check the pump setting by pressing the button once. The LEDs will briey show the pump setting before changing back to showing the power consumption. See g. 3 - Pump settings.
Fig. 3. Pump settings
If the pump setting does not give the desired distribution of heat in the rooms of the house, change the pump setting. See g. 4 - Re-
commended pump settings.
To change the pump setting, choose the setting you want (see g
3), press the button down for more than 2 seconds (less than 10)
and the LEDs will ash. Then press the button until the LEDs shows the desired setting. The LEDs ash and when they stop the new set­ting is saved. The LEDs return to show power cunstumption. Please note that if the LEDs do not ash after 2 seconds, possibly the pump setting is locked. To unlock, press the button down for more than 10 seconds. LEDs will ash and the pump is unlocked. To lock the pump, repeat the procedure.
For more information, see enclosed Grundfos instructions.
In case the 1 See g. 5 - Alarm status. When there is no active alarm anymore the user interface switches back to operation mode shortly and then showing power consumption.
st
LED is red the pump has detected one or more alarms.
Fig. 4. Recommended pump settings
UMP3 15-70 AUTO
Application Recommended pump mode
Radiator two-pipe system
Radiator one-pipe system
Floor heating 1. Auto adapt, Constant pressure mode
Ventilation 1. Constant curve mode, speed 1-2-3-4
Domestic hot water 1. Constant curve mode, speed 1-2-3-4
Fig. 5. Alarm status
1. Auto adapt proportional pressure mode
2. Proportional pressure mode **
1. Constant curve mode, speed 1-2-3-4
2. Constant pressure mode **
2. Constant pressure mode **
** factory setting
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
12.0 Domestic hot water (DHW)
Description
The domestic hot water is prepared in the 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erential pressure controller, which blocks the ow of primary and secondary side ow through the heat exchanger im­mediately after completion of the tapping process.
12.1 Regulation of the domestic hot water temperature
PTC2 controller for domestic hot water (Fig. 1).
Danfoss PTC2 controller for domestic hot water. Adjust the hot wa­ter temperature by moving the adjuster lever towards “+” (hotter) or “-” (colder). Start by turning the lever clockwise – until it stops/ until you cannot turn it any further. Then turn the lever counter- clockwise until the temperature of the tap water is approx. 48°C during normal tapping ow (7–8 litres per min.). The temperature must never exceed 55°C to prevent limescale deposits building up in the water heater.
Alternative controller PM2+P As alternative the temperature can be controlled by a the pressure-con­trolled self-acting controller PM2+P with integrated dierential pressure controller. Set the DHW temperature by turning the adjuster lever to­wards red (hotter) or blue (colder). Start by turning the lever clockwise
- until the pin is opposite the blue dot. Then turn the lever counter­clockwise until the temperature of the tap water is approx. 48°C during normal tapping ow (7–8 litres per min.). The temperature must never exceed 55°C to prevent limescale deposits building up in the water heater. NB! The pin must be positioned between the blue and red
dot, otherwise the controller will shut down.
12.2 Bypass or circulation thermostat (Fig. 2)
Bypass thermostat (default)
As a standard the substation is equipped with a bypass thermostat, Danfoss FJVR, so that when water is tapped, the water heater immediately starts to produce hot water. We recommend setting of the thermostat in pos.3. If you have to wait a long time (i.e. more than 20 sec.) for hot water, it may be necessary to set the thermostat at a higher value.
1
Adjuster lever
Adjuster lever
2
Scale setting (indicative) Pos. 2 = 30°C 3 = 40°C 4 = 45°C
If you want to avoid waiting time altogether, you will need to set up domestic hot water recirculation to the tapping points.
Circulation thermostat / conversion to recirculation
If the household piping system features domestic hot water recir­culation, the substation must be connected to the recirculation system.
Conversion to recirculation requires only an additional circulation set. (this is not part of the delivery and must be purchased as extra equip­ment, - see photo on page 21).
Connect the recirculation pipe from the xed household piping system to the hexagon nipple, at the bottom of the substationtion (please see pages 20 -21 for instructions about how to make recirculation connection).
If a time-controlled pump is used, we recommend setting the circula­tion water temperature to approx. 35 °C.
Please note! If the circulation pump (outside the station) is stopped for a protracted period, we recommend that the bypass thermostat is shut o for the same period.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
13.0 Maintenance
Maintenance work
Is only to be carried out by qualied and authorised personnel.
Inspection
The water heater should be checked regularly by authorised personnel. Any necessary maintenance must be performed in accordance with the instructions in this manual and other sets of instructions. During service the dirt strainers are to be cleaned – including the lter on the controller, all pipe connections must be tightened and the safety valve must be function tested by turning the lever.
Rinsing/cleaning of plate heat exchanger
To clean the plate heat exchanger, rinse it by running clean water through the exchanger at high speed and in the opposite direction to the normal ow. This will remove any dirt deposits that may have built up in the exchanger. If rinsing with clean water is not sucient, the exchanger can also be cleane d by circulating a cleaning agent approved by Danfoss (e.g. Kaloxi or Radiner Fl cleaning uid) through the exchanger. Both these cleaning uids are environmentally friendly and can be disposed o through the standard sewer system. After use of a cleaning uid, the plate heat exchanger must be rinsed thoroughly with clean water.
Acid cleaning of plate heat exchanger
Deposits of limesc ale may build up in plate heat exchangers for domestic hot water on account of the large temperature uc tuations, and because aerated water is used on the secondary side. If it becomes necessary to clean the exchanger with acid, this can be done as shown on the drawing to the right. Brazed plate heat exchangers can withstand rinsing with a dilute acid solution - e.g. 5% formic, acetic or phosphoric acid).
Measures after maintenance work
After maintenance work and before commissioning: – Check that all screwed connections are tight. – Check that all safet y features, covers, that were removed, have been
replaced properly. – Clean the working area and remove any spilled materials. – Clear all tools, materials and other equipment from the working area. – Connect to energy supply and check for leaks. – Vent the system. – Carry out any necessary adjustment again. – Make sure that all safety features on the device and the system work
properly.
Meter reading
The caretaker/owner must perform visual checking and reading of the district heating meter at short, regular intervals. (The meter is not a part of the delivery from Danfoss). Service procedures must only be performed by trained, authorised personnel. NB! Excessive consumption for whatever reason is not covered by the Danfoss warranty.
Cooling / Return temperature reading
Cooling – i.e. the dierence between the supply and return temperature of the district heating water – has a signicant eect on overall energy economy. Therefore, it is important to focus on the supply and return temperature in the heating system. The dierence should typically be 30–35°C. Please note that a low district heating return temperature is directly related to the return temperature from the heating circuit and the return temperature of the circulation water. It is therefore important to focus on these return temperatures.
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Cooling from the water heater alone:
During tapping, the level of cooling will typically be 30–35°C. When hot water is not being tapped, it is completely normal for the return temperature from the water heater to rise slightly. In this situation, the district heating meter will register very modest consumption as the volume of water is very small. On water heaters with recirculation, the calorie meter registers the heat loss in the circulation pipe.
13.1 Maintenance schedule (recommendations)
Interval Maintenance work Comments
Check all connections for leaks
Check that the safety valve on the cold water supply is functioning correctly.
Check that all components are intact and functioning as intended
Clean all dirt lters/strainers in the substation Replace any lters that are not intact
At least once a year
Check that any electrical cables are in serviceable condition and that it is possible to disconnect the electrical power sup­ply to the substation
Check the pipes and exchanger for signs of corrosion Visual check
Check that the temperature regulators are set in accordance with the instructions in this manual
Check the functions of all shut-o valves Check that the ball valves open and close as they should
Service and maintenance procedures must only be performed by trained, authorised personnel. Please note that after dismantling, the gaskets MUST be replaced. Once the system has been lled with water, retighten 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 gaskets! Therefore, it is important that you DO NOT OVERTIGHTEN the pipe connections. Over-tightening may result in leaks. Leaks caused by over-tightening or failure to retighten connections are not covered by the warranty.
If you identify a leak, replace the gaskets and retighten the pipe connec­tions
Check the functionality by turning the lever on the safety valves
In the event of irregularities, lack of functionality or visible faults and defects in a component, replace the component in questionn
Visual check. Check whether it is possible to disconnect the current to the substation.
Follow the instructions in the present manual
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Instructions for installation and use Akva Lux II VX substations
14.0 Troubleshooting
If operating disturbances occur, the following basic features should be checked before carrying out acual troubleshooting:
- the substation is correctly connected,
- the district heating supply temperature is at the normal level (summer at least 60 °C, winter at least 70 °C),
- the dierential pressure is higher than or equal to the normal (local) dierential pessure in the district heating network. - If in doubt, ask the district heating plant,
14.1 Troubleshooting - Heating
Problem Possible cause Solution
Dirt strainer clogged on DH og HE side (radiator circuit).
Filter in district heating meter clogged. Clean the lter (after consulting the
Defective dierential pressure controller. Check the functions of the dierential
Defective sensor Replace sensor.
Defektive actuator. Check the functioning of the actuator.
Defective motor valve - or possibly dirt in the valve housing.
No heat
Automatic controls wrongly set or defec­tive - possibly power failure.
- the substation is connected to electricity (pump and automatic components).
- the dirt strainer in the district heating supply pipe is clean,
- air pockets in the system.
Clean dirt strainer.
district heating plant).
pressure controller - clean valve seat if required.
Check the functions of the motor valve ­clean valve housing if required.
Check if the setting of the controller is correct - see separate instructions. Check the power supply. Temporary setting of actuator to “man­ual” control - see instruction on heating circuit, manual control.
Uneven heat distribution
Supply temperature too high
Pump out of operation.
The pump is set at too low speed of rotation.
Air pockets in the system. Vent the installation thoroughly.
Air pockets in the system. Vent the installation thoroughly.
Wrong setting of automatic controls. Adjust automatic controls, see instruc-
Defective sensor. Replace sensor.
Defective controller. The controller does not react as it is should in accordance with the instructions.
Check that the pump is receiving power and that it runs. Control that there is no air in the pump housing - see pump manual.
Set the pump at higher speed of rotation
- see instructions on heating circuit.
tions for automatic controls.
Call in automatic controls manufacturer or replace controller.
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Problem Possible cause Solution
Supply temperature too low
Poor cooling
Wrong setting of automatic controls.
Defective controller. The controller does not react as it is should in accordance with the instructions.
Outdoor sensor mounted or placed incorrectly.
Dirt strainer clogged. Clean dirt strainer.
Too small heating surface/ too small radiators compared to the total heating requirement of the building.
Poor utilization of existing heating surface.
The system is single-pipe. It is extremely important to keep the
Adjust automatic controls, see instruc­tions for automatic controls.
Call in automatic controls manufacturer or replace controller.
Mount/place outdoor sensor correctly.
Increase total heating surface.
Make sure that the heat is distributed evenly across the full heating surface ­open all radiators and keep the radiator in the system from heating up at the bottom. Higher temperature at the top and lower temperature at the bottom part of the radiators means that the system operation is correct.
supply temperature to the radiators as low as ever possible, while maintaining a reasonable level of comfort.
Self-acting thermostat on DH defective (does not apply to all variants)
Replace thermostat - alternatively only the sensor.
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
14.2 Troubleshooting - Domestic hot water
Problem Possible cause Solution
Variations in temperature
Low temperature / variations in tem­perature at the draining points
Not enough pressure on the hot water
Long waiting time
No domestic hot water Dirt strainer on DH supply clogged. Clean dirt strainer.
Non-return valve on the circulation line defective (leads to mixing - and the circulation water pipes become cold du-
Non-return valve in thermostatic mixer tap in the bathroom defective - leads to mixing of cold and hot water-. Note that variations in temperature may occur at other draining points/water taps in the household piping! REMEMBER, to check all the mixer taps in the house!
Dirt strainer in cold water meter or in the cold water supply line clogged.
Circulation pump out of operation - (not part of the dly).
See above.
Replace non-return valve.
Replace mixer tap, or non-return valve only.
Clean dirt strainer (cold water meter possibly in consulation with the water supply company).
Check whether the pump is running ­whether the pump is receiving power. Control that there is no air in the pump housing - see pump manual.
See above.
DHW temperature too low
DHW temperature too high Defective DHW controller.
Declining temperature during tapping
Poor cooling Calied heat exchanger.
Discoloured water (during a protracted period)
Lack of hot water pressure Calied plate heat exchanger.
Non-return valve on the circulation line defective (leads to mixing - and the circulation water pipes become cold dur­ing tapping).
Air in capillary tubes.
Calied heat exchanger.
Short-circuiting of / defective heat exchanger.
Plate heat exchanger short-circuited. Replace the plate heat exchanger.
Replace non-return valve.
Check the functions of the controller, and replace if required.
Air and rinse capillary tubes.
Clean heat exchanger with acid solution or replace heat exchanger.
Replace heat exchanger.
Clean heat exchanger with acid solution or replace heat exchanger.
Replace the plate heat exchanger or clean it with acid.
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
15.0 EU Declaration of Conformity
Danfoss Redan A/S
Telephone +45 87 43 89 43
EC-DECLARATION OF CONFORMITY
For CE marking in EU (European Union)
Danfoss Redan A/S District Energy
DK-8382 Hinnerup
Declares under our sole responsibility that below products including all available power and control options:
Akva Lux II VX
Main components: See instruction manual.
District Energy
Omega 7, Søften
DK-8382 Hinnerup
Covered by this declaration is in conformity with the following directive(s), standard(s) or other norma­tive document(s), provided that the products are used in accordance with our instructions.
EU Directives:
EMC Directive 2004/108/EEC
EN 61000-6-1 2007 Electromagnetic compatibility- Generic standard: Immunity for residential, commercial and light
industry.
EN 61000-6-2 2007 Electromagnetic compatibility- Generic standard: Immunity industry.
EN 61000-6-3 2007 Electromagnetic compatibility- Generic standard: Emission for residential, commercial and light
industry.
EN 61000-6-4 2007 Electromagnetic compatibility- Generic standard: Emission industry.
Machinery Directive 2006/42/EEC
EN ISO 14121-1 Safety of machinery -- Risk assessment
EN 60204-1-Safety of machinery - Electrical equipment of machines — Part 1: General requirements
PED Directive 97/23/EEC
Conformity assessment procedure followed: Module A - Internal control of production
All substations that falls under Article 3 §3 and category 1 shall not be CE-marked according to this directive
CE marked affixed year 2010
Approved by:
Place and date of issue: Hinnerup, Aug. 22nd, 2013
Name: Katja Brødegaard
Title: Quality & HSE Manager
Danfoss District Energy VI.GP.Q3 .02 DKDHR
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Instructions for installation and use Akva Lux II VX substations
16.0 Commissioning Certicate
Commissioning certicate
The substation is the direct link between the district heating supply network and the household piping system. All supply pipes and the pipes in the household piping system must be checked and rinsed before commissioning. Once the system has been lled with water, all pipe connections must be retightened before performing pressure test for leaks. The dirt strainers must be cleaned and the substation must be adjusted in accordance with the instructions in this manual.
It is important to comply with all technical regulations and the applicable legislation in every respect.
Installation and commissioning must only be performed by trained, authorised personnel.
The substation is checked in the factory for leaks before delivery. Leaks are however possible due to vibrations caused by transport, hand­ling and heating of the system and therefore it is important to check all connections and to retighten if necessarys before commissioning. Please note that the connections may feature EPDM gaskets! Therefore it is important that you DO NOT OVER-TIGHTEN the connections. Over-tightening may result in leaks. Leaks caused by overtightening or failure to retighten connections are not covered by the warranty.
To be lled-out by the installer.
This substation has been retightened, adjusted and commissioned
on the: by installer:
Date/Year
Company name (stamp)
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DKDHR VI.GP.Q3.02 Danfoss District Energy
Instructions for installation and use Akva Lux II VX substations
Danfoss District Energy VI.GP.Q3 .02 DKDHR
4747
Instructions for installation and use Akva Lux II VX substations
Danfoss Redan A/S · District Energy · Omega 7, Søften · DK-8382 Hinnerup Tel. +45 87 43 89 43 · Fax: +45 87 43 89 44 · redan@danfoss.com · www.redan.danfoss.dk
VI.GP.Q3.02
Produced by Danfoss Redan A/S © 01/2015
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