2
27
0-
420
790
480
344
400
81
0
180
0-
1950
Gas fired boiler and
DHW cylinder positioning
Three-way changeover
valve installation
Dummy plug
Primary
return
Elbow
Primary
flow
Gas fired boiler and DHW cylinder are installed in the following steps as shown:
- Remove the dummy plug from the heating return.
- Remove the bend from the heating flow.
- Install the three-way changeover valve from the connection set with the enclosed
gaskets to the heating flow.
CSW / TSW connection set
for installation on finished walls
Three-way
changeover
valve
Gas supply pipe
Domestic hot
water cylinder
Domestic hot water
Cold water
DHW flow
DHW return
Primary return
Primary flow
Gas fired boiler
Three-way
changeover valve
Install the gas fired boiler in accordance with installation instructions.
Locate the DHW cylinder below and in alignment with the boiler.
DHW return
vent valve
DHW flow
vent valve
Gas fired boiler and
DHW cylinder pipework
TSW without decorative panel
DHW cylinder cutout for supply lines
Connection
panel
780-
800
30
0
480
344
400
183
5 ±
1
0
Connection
panel
DHW cylinder cutout for supply lines
TSW with decorative panel
27
0-42
0
79
0
810
1800
-19
50
CSW
Connection
panel
Connection
panel
DHW cylinder cutout for supply lines
Connection set ...SW-120 for
surface installation
Evacuation
P+T-Valve
P+T-pipe
Tundish
