iNSTallaTiON
installation
8
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11.3.2 Heating water connection
Installation example:
D
00000
70
88
7
1
2
1 Pipes carrying heating water
2 Pressure hose (available as accessory)
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Thoroughly flush the pipes before connecting the heat pump.
Foreign bodies (e.g. welding pearls, rust, sand, sealant, etc.)
can impair the operational reliability of the heat pump.
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Install the heating water pipes (see chapter "Specification /
Dimensions and connections").
Safety valve
1
3
2
D
00000
61
64
5
1 Drain hose (not part of the standard delivery)
2 Fasteners (not part of the standard delivery)
3 Drain (not part of the standard delivery)
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Size the drain hose so that water can drain off unimpeded
when the safety valve is fully opened.
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Ensure that the safety valve drain hose is open to the outside.
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Lay the safety valve drain hose with a constant fall to the
drain.
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Secure the drain hose to prevent any hose movement while
water is discharged.
11.4 DHW connection and safety assembly
11.4.1 Safety instructions
!
Material losses
The maximum permissible pressure must not be exceed-
ed (see chapter "Specification / Data table").
!
Material losses
Operate the appliance only with pressure-tested taps.
Cold water line
Galvanised steel, stainless steel, copper and plastic are approved
materials.
!
Material losses
A safety valve is required.
DHW line, DHW circulation line
Stainless steel, copper and plastic are approved materials.
11.4.2 Installing the DHW circulation line, if applicable
A DHW circulation line with external DHW circulation pump can be
fitted to the DHW circulation connection (see chapter "Specification
/ Dimensions and connections").
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Remove the sealing cap from the DHW circulation connection
(see chapter "Specification / Dimensions and connections").
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Connect the DHW circulation line.
11.4.3 DHW connection and safety assembly
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Flush the pipes thoroughly.
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Install the DHW outlet line and the cold water inlet line (see
chapter "Specification / Dimensions and connections"). Con-
nect the hydraulic connections with flat gaskets.
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Install a type-tested safety valve in the cold water inlet line.
Please note that, depending on the supply pressure, you may
also need a pressure reducing valve.
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Size the drain pipe so that water can drain off unimpeded
when the safety valve is fully opened.
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The safety valve drainage aperture must remain open to
atmosphere.
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Install the safety valve drain pipe with a constant fall to the
drain.
11.5 Filling the system
Heating circuit water quality
Carry out a fill water analysis before the system is filled. This
analysis may, for example, be requested from the relevant water
supply utility.
To avoid damage as a result of scaling, it may be necessary to
soften or desalinate the fill water. The fill water limits specified
in chapter "Specification / Data table" must always be observed.
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Recheck these limits 8-12 weeks after commissioning and
during the annual system service.
