Mounting and installation guide
EvoFlat WSS Water Heaters
© Danfoss | Produced by Danfoss Redan A/S | 2020.08 | 3
AN352656760258en-000101
145X2039
The following instructions refer to the standard design of the station.
This operating manual should be read carefully before installation and start-
up of the flat station. The manufacturer accepts no liability for damage or
faults that result from non-compliance with the operating manual. Please
read and follow all the instructions carefully to prevent accidents, injury and
damage to property.
Assembly, start-up and maintenance work must be performed by qualified
and authorized personnel only.
Please comply with the instructions issued by the system manufacturer or
system operator.
Corrosion protection
All pipes and components are made of stainless steel and brass.
The maximum chloride compounds of the flow medium should not be higher
than 150 mg/l.
The risk of equipment corrosion increases considerably if the
recommended level of permissible chloride compounds is exceeded.
Energy source
The substation is designed to be connected to decentralized heating instal-
lations with various energy sources, such as district heating, central boiler
(gas, oil, biomass, etc.), solar, heat pump or a combination between them if
the operating conditions allow it.
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.
Safety valve(s)
Installation of safety valve(s) must always be in compliance with local reg-
ulations.
Noise level.
≤ 35 dB.
Connection
It must be possible to cut off all energy sources to the system – including
electrical connections – at all times.
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 appropriate 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.
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 Units sup-
plied 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.
2. SAFETY NOTES
Authorized personnel only
Assembly, start-up and maintenance work must be per-
formed by qualified and authorized personnel only
.
Please observe instructions carefully
To avoid injury to persons and damage to the device, it is
absolutely necessary to read and observe these instruc-
tions carefully.
Warning of high pressure and temperature
Be aware of the installation’s permissible system pressure
and temperature.
The maximum temperature of the flow medium in the flat
station is 95 °C. The maximum operating pressure of the
flat station is 10 bar. The risk of persons being injured and
equipment damaged increases considerably if the recom-
mended permissible operating parameters are exceeded.
The flat station installation must be equipped with safety
valves, however, always in accordance with local regulations.
Warning of hot surface
The flat station has got hot surfaces, which can cause skin
burns.
Please be extremely cautious in close proximity to the flat
station. Power failure can result in the motor valves being
stuck in open position. The surfaces of the flat station can get
hot, which can cause skin burns. The ball valves on district
heating supply and return should be closed.
Warning of transport damage
Before flat station installation, please make sure that the
flat station has not been damaged during transport.
IMPORTANT - Tightening of connections
Due to vibrations during transport all flange connections,
screw joints and electrical clamp and screw connections
must be checked and tightened before water is added to
the system.
After water has been added to the system and the system
has been put into operation, re-tighten
ALL
connections.
Check that all hairpins in click connectionsare completely
pushed in.
Handling
We recommend wearing suitable and safe footwear when
handling and installing the district heating station.
