HDG F20 - Page 34

4 Planning and installation – Installing the heating system
34
1. Mount the double nipple (4 + 6) on the connection for the flow (7)
or the return (5).
2. Install the three-way switch valve (2) on the double nipple (4).
3. Install the actuator (10) on the three-way switching valve (2) using
the fastening screw.
4. Run the cable from the actuator (10) to the central module and
insert the connector in the central module.
✎ See “Electrical plans for the HDG log wood boiler”.
5. Install the T-piece (8) on the double nipple (6).
Figure 4/9 - Hydraulic connection set HDG F20-50 Hybrid
30°
30°
2
1
3
4
9
865 7
10
11
Important!
When installing the three-way switch valve (2) and the T-piece (8),
ensure the proper installation angle!
Important!
If the pellet unit will be retrofitted at a later point in time, dummy
plugs must be installed on the three-way switching valve (2) or T-
piece (8).