Fitting The Cover; Fitting The Cylinder Temperature Sensor For Solar Operation; Connections On The Heating Water Side - Viessmann Vitocell 300-B Installation Instructions Manual

500 l capacity
(cont.)

Fitting the cover

A
2.
Fig. 11
Cap with Viessmann logo
A

Fitting the cylinder temperature sensor for solar operation

Fig. 12
1. Seal threaded elbow and sensor well (accessories)
into the heating water return connection (solar
return).

Connections on the heating water side

■ Connect all pipework with detachable fittings.
■ Seal any connections that are not required with red
brass caps.
Adjust the temperature controller and high limit
■
safety cut-out so that the DHW temperature in the
DHW cylinder does not exceed 95 °C.
■ For 300 l and heating water flow temperatures above
95 °C:
Remove the pipe collars from the pipe outlets on the
heating water side (pipe collars have l.h. threads).
1.
2.
1.
Note
The soft side of the thermal insulation must rest
against the cylinder body.
2. Insert the cylinder temperature sensor (part of
solar control unit standard delivery) into the sensor
well as far as it will go and secure against slipping
out.
!
Please note
The internal indirect coil is installed with gas-
kets.
Temperatures > 150 °C at the connections will
■
damage the gaskets.
Ensure an adequate safety distance when sol-
dering and welding.
■ Realigning the connector will damage the gas-
kets.
15