Installation Information Preparing For Installation; Connections; Siting Information - Viessmann Vitocell 100-U Installation Instructions For Contractors

Preparing for installation

Connections

Fig. 1
Thermometer sensor connection
A
Magnesium anode with earth cable
B
Heating water return, solar (lower indirect coil, col-
C
lector connection)
DHW to pipework
D
Heating water flow, solar (lower indirect coil, col-
E
lector connection)
Sensor well for cylinder temperature sensor of the
F
boiler control unit
Heating water flow, boiler (upper indirect coil)
G
DHW circulation
H
Heating water return, boiler (upper indirect coil)
K
Cold water/drain outlet
L
Heating water return, solar (lower indirect coil, con-
M
nection to heat exchanger)/sensor well for cylinder
temperature sensor, solar
Sensor well for lower thermometer
N
Heating water flow, solar (lower indirect coil, con-
O
nection to heat exchanger)

Siting information

!
Please note
The thermal insulation must not be able to come
into contact with naked flames.
Exercise caution when welding and soldering.
!
Please note
To prevent material losses, site the DHW cylin-
der in a room free from the risk of frost and
draughts.
When not in use, the DHW cylinder must be
drained if there is a risk of frost.
6
Use the adjustable feet to level the DHW cylinder.
Note
Never extend the adjustable feet beyond a total length
of 35 mm.