Filling The Dhw Cylinder; Shutting Down The System; Checking The Safety Valve Function; Cleaning The Inside Of The Dhw Cylinder - Viessmann VITOCELL 300-B Installation And Service Instructions Manual

Filling the DHW cylinder

1. Fill the DHW cylinder on the DHW side.
Note
If the DHW cylinder is pressurised, retighten the
flange cover with a torque of 40 Nm.
The cylinder cap does not need to be retightened.

Shutting down the system

Checking the safety valve function

Cleaning the inside of the DHW cylinder

E
C
D
F
K L M
8x
Fig. 18 300 l capacity
Commissioning, inspection, maintenance
2. Check the fittings on the heating water and DHW
side and at the immersion heater for leaks. If
required, tighten the fittings.
3. Check the function of the safety valves according
to the manufacturer's instructions.
A
B
G
H
E
C
D F
K L M
8x
Fig. 19 500 l capacity
01. Remove cover
A and thermal insulation B
A
B
G
H
.
23