Preparing For Boiler Installation - Viessmann VITODENS 111-W Installation And Service Instructions Manual

Installation information

Preparing for boiler installation

Dimensions and connections
497
A
BC F GH K
D
E
Fig. 1
Area for electrical connections
A
B Heating flow 22 mm
7
Condensate drain
C
Heating return 22 mm
D
7
Filling/draining
E
Preparing the connections
Note
This boiler (IP rating: IP X4) is approved for installation
in wet rooms inside safety zone 1 in accordance with
IEEE Wiring Regulations, providing the occurrence of
hosed water can be ruled out.
Observe the IEEE Wiring Regulations.
1. Prepare the water connections. Flush the heating
system.
8
166
35
480
Gas connection
F
G Safety valve (DHW side)
Cold water
H
DHW 15 mm
K
7
2. Prepare the gas connection.
3. Prepare the electrical connections.
Power cable:
■
A flexible cable 3 x 1.5 mm
is connected in the delivered condition.
■ Cables for accessories:
2-core sheathed cable min. 0.5 mm
age
22 mm
7
15 mm
7
2
, approx. 1.5 m long
2 for low volt-