55
Instructions for installation and use
S 22
Danfoss District Energy
VI.IE.D1.02
DKDHR
4.
Installation instructions, connection, safety and handling
Instructions
Please read these instructions carefully before installing and com-
missioning this unit. 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 qualified and authorised personnel (both plumbing and electri-
cal work).
Heat source
The unit 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 unit is designed exclusively to heat water.
The unit must not be used to heat other media.
The unit is to be connected to the household piping in a frost-free
room, where the temperature does not exceed 50°C, and where the
relative humidity is not higher than 80%. The unit must not be cove-
red, bricked in or otherwise cut off from access.
Choise of materials
Only use materials that comply with local regulations.
Corrosion
The maximum chlorine content of the medium must not be higher
than 300 mg/l. The risk of corrosion increases considerably if the
recommended chlorine content is exceeded.
Safety valve(s)
Safety valves must always be installed in accordance with the appli-
cable local regulations.
Noise level
≤ 55 dB
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.
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 effected
according to local regulations.
Warning! Hot surfaces
Parts of the unit 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 and the operating pressure can be up to 16 bar.
This may result in a risk of scalding from touching the unit and from
outflow of the medium. Exceeding the unit 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 fire, leaks or other hazards, immediately shut off all energy
sources to the unit, if possible, and call appropriate assistance.
If the domestic hot water is discoloured or malodorous, shut off all ball
valves on the unit, notify all users and call professional assistance with-
out delay.
Warning about damage during transport
On reception of the unit, and before installing it, check for any evidence
of damage during transport.
The unit must be handled and moved with the greatest care and at-
tention.
NB! - Tightening of connections
Before filling the unit with water, ALL pipe connections MUST be
retightened, as vibrations during transport may have caused leaks.
Once the unit has been filled and the system is hot, ALL pipe connec-
tions MUST be retightened once more. DO NOT OVERTIGHTEN THE
PIPE CONNECTIONS – see page 7, “Test & connections”.
Storage
Before installation, the unit(s) must be stored in a dry, heated (i.e. frost-
free) room.
(Relative humidity max. 80% and storage temp. 5–70°C).
The units must not be stacked higher than the limit at the factory. 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 unit 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 unit 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.
Handling
We recommend that you wear suitable safety footwear while handling
and installing the unit.
We recommend that you wear suitable safety working gloves while
handling and installing the unit.
Do not remove any transport brackets until the unit is in the immediate
vicinity of the installation site.
