HTW A60CGN8PLUS Manuel De L'utilisateur page 107

8.5.1 Check the water circuit
The unit is equipped with a water inlet and water outlet for connection to a water circuit. This circuit must be provided by a
licensed technician and must comply with local laws and regulations.
The unit is only to be used in a closed water system. Application in an open water circuit can lead to excessive corrosion of
the water piping.
Example：
Outdoor
1
Coding Assembly unit
1 Outdoor unit
2 Indoor unit
User interface (accessory)
3
Balance tank (field supply)
5
Automatic bleed valve
5.1
Drainage valve
5.2
P_o: Outside circulation pump (field supply)
6
Expansion vessel (field supply)
13
Indoor
2
2.4
2.2
2.5
2.9
2.6
3
2.11
2.3 2.1
2.1
2.10 2.8 2.7
17 17
15
5.1
19
5
18
5.2
19
Modbus
13
6
FHL1
Coding Assembly unit
15 Filter (accessory)
Shut-off valve (field supply)
17
Filling valve (field supply)
18
Drainage valve (field supply)
19
Collector/distributor (field supply)
23
Bypass valve (field supply)
24
Floor heating loop (field supply)
FHL 1...n
26
23
24
FHL2 FHLn