9
Secondary circuit connections
Symbol Meaning
Connection on the indoor unit (female thread)
DHW cylinder flow (on the heating water
side)
G 1
¼
+
Heating water return and DHW cylinder re-
turn
G 1
¼
Heating water flow
G 1
¼
1.
Prepare the connections on the heating water and
the DHW side.
Flush the heating system.
2.
Prepare the electrical connections.
Preparing for installation
Requirements for on-site connections
(cont.)
5790 931 GB
Installation
