Boiler Water Connections (Heat Exchanger Connection); Recommended Piping For Solar Application With An Additional Tank - Viessmann VITOCELL 100-V CVA-Series Installation Instructions Manual

Vitocell 100-V Installation Instructions
Boiler Water Connections

Recommended piping for solar application with an additional tank

Legend
A
Solar collector
B
High limit safety cut-out
C
Filling valve
D
Solar-Divicon
E
Vitocell 100-V
F
Individual DHW tank heating system
G
Anti-scald tempering valve
WARNING
Due to the potentially high DHW temperatures generated
by the solar heating system, the domestic hot water
temperature must be limited to a maximum of 140º F (60º C)
by installing a anti-scald tempering valve. The tempering
valve does not completely eliminate the risk of scalding at
the tap. The installation of a mixing tap is recommended.
IMPORTANT
Use a Loctite 55 string and pipe dope on all threaded
nipples on tank.
(heat exchanger connection)
1. For boiler water supply temperatures over 203° F (95° C):
Remove plastic supply and return grommets
(grommets are left-threaded).
2. Pipe supply line with an incline and install an air vent
valve at the highest point.
3. For boiler water supply temperatures over 230° F
(110° C):
Install a type-tested high limit safety cut-out, if no other
has previously been installed in this system. For this
purpose, install a dual thermostat (high limit thermostat
and high limit safety cut-out).
4. Close off test nipples which are not used for the
installation of a probe or sensor.
Set-up and Connections
15