Installation Instructions, Safety And Handling - Danfoss Akva Lux II VXi Instructions For Installation And Use Manual

Instructions for installation and use
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 operat-
ing 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 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 protection
The risk of equipment corrosion increases considerably if recommended
permissible chloride compounds are exceeded.
All pipes are made of min. AISI 304 (heating) and min. AISI 316 (domestic
water) stainless steel as well as brass. Components for domestic water,
however, primarily in dezinci cation-resistant brass. Heat exchangers are
made of stainless steel and are copper-soldered or steel-soldered.
Surfaces in contact with water can be subject to two problems, limescale
formation and corrosion.
The nature of the water will be of great importance in this context, where
the pH value, chlorides, gases, etc., have a decisive e ect on how much
lime is deposited and how aggressive the water is.
The temperature also has a great in uence in this context. For example the
corrosion rate increases by a factor of 2 to 3 for every 10° C temperature rise.
With knowledge of the chemical water composition and operating condi-
tions of a heating system, the risk of scaling and corrosion can be assessed.
Based on that, recommendations can be made to avoid scaling and/or
corrosion problems in the components.
See item 19, page 41 for more detailed Guidelines for Water Quality in Danfoss
brazed heat exchangers and recommended Chloride concentration to avoid
Stress Corrosion Cracking.
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. 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).
VI.JV.R1.02
Akva Lux II VXi, VXi Solo HWP, VXi Solo H
Units supplied in cardboard packaging must be lifted using the han-
dles 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
Connection
It must be possible to cut o 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 out ow 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 re, leaks or other hazards, immediately shut o all
sources of energy to the substation, if possible and call for appropri-
ate assistance.
If the domestic hot water is discoloured or 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.
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.
(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.
© Danfoss | Produced by Danfoss Redan A/S | 2017.01 | 3