Preparing For Installation Connections; Siting Information - Viessmann Vitocell 300-B Installation Instructions Manual

Connections
Fig. 1 300 litres
Temperature controller (upper indirect coil)
A
(below the thermal insulation)
Cylinder temperature sensor and safety limiter
B
(below the thermal insulation)
DHW
C
Heating water flow
D *1
DHW circulation
E
Heating water return (upper indirect coil)
F
Cylinder temperature sensor or temperature con-
G
troller and thermometer sensor (lower indirect
coil)
*2
Heating water flow
H *3
Heating water return and cylinder temperature
K
sensor for solar operation
Cold water
L

Siting information

!
Please note
The thermal insulation must not come into con-
tact with naked flames.
Exercise caution when welding and brazing.
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.
6
A
B
C
D
E
F
G
H
K
L
(upper indirect coil)
(lower indirect coil)
*2*3
Fig. 2 500 litres
DHW
A
Clamp (behind the thermal insulation) for cylinder
B
temperature sensor or temperature controller
(upper indirect coil)
Heating water flow *1
C
DHW circulation
D
Heating water return (upper indirect coil)
E
Clamp (behind the thermal insulation) for cylinder
F
temperature sensor or temperature controller and
thermometer sensor (lower indirect coil)
G Heating water flow *3
Heating water return and cylinder temperature
H
sensor for solar operation
Cold water
K
Cylinder capaci-
ty pump output (upper and lower
indirect coils linked in series):
300 l
500 l
A
B
C
D
E
F
G
H
K
(upper indirect coil)
*2
(lower indirect coil)
*2*3
Maximum connectable heat
12 kW
15 kW