14
5813 312 - 01
Vitocell 300-W/V, EVIA/EVIB Installation, Operating and Service
Boiler Water Connections
(heat exchanger connection)
Legend
A
Solar collector
B
High limit safety cut-out
C
Filling valve
D
Solar-Divicon
E
Vitocell 300-W, 300-V
F
Individual DHW tank heating system
G
Anti-scald tempering valve
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.
Recommended piping for solar application with an additional tank
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 140ºF
(60ºC) 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.
Installation
Note:
Tee with sensor well for solar return must be
ordered
separately.
