Instructions for installation and use
Akva Lux II VXe
© Danfoss | Produced by Danfoss Redan A/S | 2021.02 | 3
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2.
INSTALLATION INSTRUCTIONS, SAFETY AND HANDLING
Instructions
Please read these instructions carefully before installing and comis-
sioning 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 physi-
cal 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 mainte-
nance must be carried out by qualified 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 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 off 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 recom-
mended chloride content is exceeded.
Safety valve(s)
Installation of safety valve(s) must always be in compliance with lo-
cal 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. frost-
free) room.
(Relative humidity max. 80% and storage temperature 5-70 °C).
The units must not be stacked higher than the limit at the factory (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.
Connection
It must be possible to cut off all energy sources to the unit - including
electrical connections - at all times. The unit must be connected to an
electrical equalizer connection.
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 substa-
tion.
Warning of high pressure and high temperature
The maximum supply temperature in the district heating network
can be up to 120°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 outflow of the medium (water/steam). Exceeding the substa-
tion design data and operating parameters for pressure and tem-
perature carries an appreciable risk of personal injury and/or damage
to property.
Emergencies
In the event of fire, leaks or other hazards, immediately shut off all
sources of energy to the substation, if possible and call for appropri-
ate assistance.
If the domestic hot water is discoloured or malodorous, shut off all
ball valves on the substation, notify all users and call for professional
assistance immediately.
Warning of damage during transport
On reception of the substation, and before installing it, check for any
evidence of damage during transport.
The substation must be handled and moved with the greatest care
and attention.
IMPORTANT - Tightening of connections
Before adding water to the system, ALL pipe connections MUST be
retightened, as vibrations during transport may have caused leaks.
Once the substation has been filled and the system has been put into
operation, ALL pipe connections MUST be tightened once more.
(Do not overtighten! - See page 8, Test and Connections)
Handling
We recommend that you wear suitable safety footwear while
handling and installing the substation.
NOTE:
Interventions/rework on our components results in loss of
warranty.
