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Hydraulic connections
6.4
Connect the indoor unit to the heating system
1. Connect PRV pipe work into a frost protect drain.
2. Connect the heating system return line. Install an isolation valve
(VC8) in this line
3. Connect the heating system flow line. Install an isolation valve (VC9)
in this line.
Magnetite
seperator
(Advised )
(accessory)
VC8
SC1
1
Fig. 23 Indoor unit connections to the heating system
[1]
Heating system return line
[2]
Heating system flow line
6.5
Connect the indoor unit to the mains water supply
WARNING
Risk of system damage
If the function of the pressure-relief valve cannot be guaranteed,
excessive pressure occurs in the system.
▶ WARNING – Make sure that the pressure relief valve outlet is never
plugged or shut off.
WARNING
Risk of scalding!
If the installation requires DHW temperatures >65 °C a temperature
mixing device must be installed.
22
The DHW mixer must be installed in the tap water circuit (not included in
the scope of delivery).
▶ Connect a discharge pipe from the tundish [6] to a frost protected
▶ If used, connect the DHW circulation pump (optional accessory) to
VL2
▶ Connect domestic hot water outlet [1].
VC10
▶ Connect cold water inlet [2]. It is recommended to fit an isolating
VC9
▶ Connect the expansion vessel provided in the accessory pack to
▶ The domestic tap water system must be protected from pollution at
2
0010048843 -001
Fig. 24 Heat pump connections tap water
[1]
[2]
[3]
[4]
[5]
[6]
outlet see section 4.7
the secondary return connection [5]
valve in cold water feed (not supplied).
connection for it [4]
the installation
1
1
Magnetite
seperator
(Advised )
(accessory)
Domestic hot water out (210L &250L on LH side)
Cold water inlet
Balance cold feed
DHW expansion vessel connection
DHW circulation connection
Tundish
Pre plumbed cylinder – 6 721 852 928 (2023/04)
2
3
4
6
0010048849-001
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