Installation Information Product Information; Connections; Siting Information - Viessmann VITOCELL 300-B Installation Instructions Manual

Product information
Stainless steel DHW cylinder with internal indirect coils
for DHW heating in conjunction with solar thermal sys-
tems, floorstanding and wall mounted boilers and/or
heat pumps for dual mode operation

Connections

Fig. 1
DHW
A
Cylinder temperature sensor or temperature con-
B
troller (upper indirect coil)
C Heating water flow *1
DHW circulation
D
E Heating water return
Cylinder temperature sensor or temperature con-
F
troller and thermometer sensor (lower indirect
coil) *2
G Heating water flow *3
Heating water return and cylinder temperature
H
sensor for solar operation
Cold water
K

Siting information

!
Please note
The thermal insulation must not come into con-
tact with naked flames.
Exercise caution when welding and soldering.
!
Please note
To prevent material losses, install the cylinder in
a room free from the risk of frost and draughts.
Otherwise the cylinder will have to be drained
when it is not in use and there is a risk of frost.
The upper indirect coil is designed for connection to a boiler.
*1
*2 Recommended positioning of the cylinder temperature sensor for solar operation:
With threaded elbow (accessories) in the heating water return.
*3 The lower indirect coil is designed for connection to solar collectors.
A
B
C
D
E
F
G
H
K
(upper indirect coil)
*1 (upper indirect coil)
(lower indirect coil)
*2*3
An immersion heater can be used
■
Capacity: 300 and 500 l
■
Suitable for systems conforming to DIN 1988,
■
EN 12828 and DIN 4753
Maximum connectable heat pump input (upper and
lower indirect coils linked in series):
For 300 l:
For 500 l:
Provide adequate clearance from the wall so that the
■
temperature controller can be operated (if installed).
Level the DHW cylinder with the adjustable feet.
■
Note
Never extend the adjustable feet beyond a total
length of 35 mm.
12 kW
15 kW
5