Danfoss Akva Lux II TDP Reno Operating guide
Instructions for installation and use
District heating substation
for exhange of Gas Boilers
Akva Lux II TDP Reno
District district heating substation for heating and domestic hot water.
Reno
Exchange of gas
boilers.
www.danfoss.com
Instructions for installation and use Akva Lux II TDP RENO
1.0 Content
2.0 Product introduction ..............................................................................................................................................................................................................3
3.0 Dimensional sketches / Connections ...............................................................................................................................................................................3
4.0 Enduser instructions, General .............................................................................................................................................................................................4
5.0 Enduser instructions, Initial adjustment/setting ..........................................................................................................................................................5
6.0 Installation instructions, Safety and Handling ..............................................................................................................................................................6
7.0 Getting started .........................................................................................................................................................................................................................7
8.0 Installation instructions, General .......................................................................................................................................................................................8
8.1 Height adjustable cover .............................................................................................................................................................................................. 12
9.0 Adjustment and commissioning of the Akva Lux II TDP RENO ........................................................................................................................... 13
10.0 Maintenance........................................................................................................................................................................................................................... 15
10.1 Maintenance schedule (recommendations) ..................................................................................................................................................... 16
11.0 Troubleshooting, Heating.................................................................................................................................................................................................. 17
12.0 Troubleshooting, Domestic hot water .......................................................................................................................................................................... 18
12.0 EU Declaration of Conformity .......................................................................................................................................................................................... 19
13.0 Commissioning Certicate ................................................................................................................................................................................................ 20
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Instructions for installation and use Akva Lux II TDP RENO
2. PRODUCT INTRODUCTION
DH
Supply
Heating
Supply
DH
Return
2 Plate heat exchanger
4 Dierential pressure controller
Top connection
(DCW connection optional)
5 Strainer
7 Ball valve
23 Sensor pocket for heat meter
24 Fitting piece for heat meter
3/4” x 110 mm
38 PT°C2 controller
40 Danfoss FJVR Thermostat for
Bypass/Circulation
52 Zone valve Danfoss RA-C
------------------------------------------------Optiones:
16A Anti-hammer vessel CAR19 für TWW
52A Thermo actuator Danfoss TWA-A NC
60 Top connection DCW with DCW tting
piece 3/4” x 110 mm
Accessories:
Ball valve 3/4” x 62 mm ET/ET
Bottom connection
Heating
KWWW
Return
2 Plate heat exchanger DHW
4 Dierential pressure controller
5 Strainer
7 Ball valve
23 Sensor pocket for heat meter
24 Fitting piece for heat meter
38 PTC2+P controller
40 Danfoss FJVR thermostat for Bypass/Circulation
52 Zone valve Danfoss RA-C
60 Top connection DCW with tting piece for cold water meter
3/4” x 110 mm (optional)
Please note that the cover is adjustable by 100 mm in height.
Please refer to page 12 for more information.
Please note:
Your substation may look dierent than the substation shown,
as variants with other components may be supplied.
The control function, however, is basically as stated in this
instruction manual.
Instructions for the tted components will be supplied together
with the substation.
Primary
Return
DCW connection
Top (optional)
Primary
Supply
60
40
5
24
2
38
4
52
7
Connections size:
DH, HE, DHW, DCW: G¾” IT
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HE
Supply
DHW
DCW
HE
Return
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Instructions for installation and use Akva Lux II TDP RENO
3. ADIMENSIONAL SKETCHES - CONNECTIONS
Connections:
1 Heating (HE) Supply, bottom
2 Domestic hot water (DHW), bottom
3 Domestic cold water (DCW) bottom
4 Heating (HE) Return
5 District heating (DH) Supply, top
6 District heating (DH) Return, top
7 DCW connection, top (option)
Depth incl. of mounting plate:
150 mm
Connections size:
DH, HE, DHW, DCW: G¾” IT
5 6 7
90 100 95
30 30
40
85
40
920
85 750
Dimensions:
Without cover:
H 920 x W 440 x D 150 mm
With cover:
H 1130/1140 x W 480 x D 150 mm
Please note that the cover is adjustable
by 100 mm in height.
Please refer to page 12 for more information.
90 65 130 65 90
440
1 2 3 4
10 mm
1130 mm
44
150
180 mm
80 mm
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480 mm
VI.JV.R1.02
Instructions for installation and use Akva Lux II TDP RENO
4. ENDUSER INSTRUCTIONS, GENERAL
Instructions
Please read these instructions carefully.
The manufacturer accepts no liability for loss or damage resulting from
failure to comply with these instructions. 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 qualied 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 8. For more detailed information about the substation, see
the sections concerning installation and commissioning.
Description
These instructions apply to substation Type Akva Lux II TDP RENO,
which ist a district heating substations, which is especially designed
for the exchange of gas boilers in single-family, semi-detached and
terraced houses as well as ats. With one heating circuit and instantaneous water heater for domestic hot water heating.
Akva Lux II TDP RENO substations are tted with a dierential pressure
controller that maintains a constant pressure in the heating circuit(s).
The supply temperature to the radiators is always identical to the district heating supply temperature. The room temperature is adjusted
solely using the radiator thermostats.
Akva Lux II TDP RENO is designed for wall mounting. For this purpose
it is tted with a height-adjustable cover made of white painted sheet
steel. The existing connections for DHW and DCW as well as supply
and return of secondary heating circuits can be used without major
changes, but it is recommended that the connections for the primary
hot water ow and return are to lead through the chimney. Optionally
the cold water supply can also be connected from above.
As further option it is possible to install a water hammer vessel to
dampen the pressure strokes.
Cooling from the water heater alone:
During tapping, the level of cooling will Typeically 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 heat 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.
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 90°C and the operating pressure can be up
to 10 bar. This may result in a risk of scalding from touching the
substation and from outow 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
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 dierence between the supply and return
temperature of the district heating water – has a signicant eect on
the overall economy. Therefore, it is important to focus on the supply
and return temperature in the heating system.
The dierence should Typeically be 30–35°C in systems that operate
with radiators. In systems that feature oor heating, the dierence is
Typeically 5–10°C. In these systems, it is important that the supply
temperature does not exceed 35°C.
Please note that a low district heating return temperature is directly
related to the return temperature from the heating/oor heating circuit
and the return temperature of the domestic hot water recirculation (in
systems with domestic hot water recirculation). It is therefore important
to focus on these return temperatures..
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Instructions for installation and use Akva Lux II TDP RENO
5. Enduser instructions, Initial adjustment/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 should never exceed 55°C
to prevent limescale deposits building up in the water heater.
Bypass or circulation thermostat
Thermostat (Fig. 2) 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.
The thermostat should initially be set to position 3.
Heating circuit, Dierential Pressure Controller
The dierential pressure controller (Fig. 4) reduces the high, uctuating pressure in the district heating network to a constant operating pressure. The dierential 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
dierential pressure controller to a lower or higher operating pressure. We suggest that you contact your local plumber for assistance
Fig. 1
Handle
Fig. 2
Fig. 3
Heating circuit, temperature control
The room temperature is regulated exclusively using the radiator
thermostats.
AVPL
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Instructions for installation and use Akva Lux II TDP RENO
2. 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 qualied 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.
Choise 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.
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 equalizing 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 substations and plumbing installations. Equalization of potentials should be
eected 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 90°C and the operating pressure can be up to 10 bar. This may
result in a risk of scalding from touching the substation and from outow 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 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.
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.
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IMPORTANT - Tightening of connections
Before adding water to the system, ALL pipe connections MUST be
retightened, as vibrations during transport may have caused leaks.
Once the substation has been lled and the system has been put into
operation, ALL pipe connections MUST be tightened once more.
Handling
We recommend that you wear suitable safety footwear while
handling and installing the substation.
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Instructions for installation and use Akva Lux II TDP RENO
7. 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.
GETTING STARTED is a quick guide and some details in connection with
installation and commissioning may require additional information,
which can be found elsewhere in this instruction manual.
Commissioning:
Please note that the “getting started” quick guide presupposes
that shutt-o possibility is established to and from the substation. - We recommend mounting of ball valves.
1. The substation is prepared for wall mounting. Mount the substation on a solid wall using two sturdy bolts, screws, expansion bolts or similar.
2. Make sure that the ball valves are closed, when connnecting
them to the household piping.
3. Mount the district heating mete (see page 9).
4. IMPORTANT! Tighten all pipe connections, as they may have
loosened during transport and handling.
5. Open the ball valve for the HE supply and return ow and ll
the system with water by carefully opening the ball valve for
the district heating supply ow and at the same time venting
the system. Finally, open the ball valve for the district heating
return ow.
6. Check the substation and the household piping thoroughly
for leaks.
7. Pressure test the entire system for leaks in accordance with
the applicable regulations.
08. Connect automatic components, if any, to the electricity supply, but do not switch on the power.
9. Heat the system and vent the radiator circuit/heating side
thoroughly on the radiators and the air valve, if any.
10. For TDP RENO substations, which include zone valve, remember to remove the red split on the position indicator of the
zone valve.
11. Now switch on automatic components, if any.
12. Finish by adjusting the substation in accordance with this
instruction manuals.
WICHTIG! Erwärmung und Abkühlen der Wohnungsstation
kann Leckagen verursachen. Deshalb kann Nachziehen alle
Verschraubungen und Anschlüsse nach der Inbetriebnahme
notwendig sein.
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VI.JV.R1.02
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