Preparing The Dhw Cylinder; Without Immersion Heater; In Conjunction With The Immersion Heater (On Site); Safety Valve (T&P Valve) (Required Accessory) - Viessmann Vitosol 222-T Installation Instructions Manual

Preparing the DHW cylinder

Without immersion heater

Accessories, comprising the follow-
ing components:
■ Flange cover with magnesium anode
■ Thermal insulation

In conjunction with the immersion heater (on site)

Accessories, comprising the follow-
ing components:
■ Flange cover with female connection
and magnesium anode
■ Thermal insulation
Safety valve (T&P valve) (required accessory)
Always install to protect the DHW cylin-
der against excessive temperatures.
■ Permissible operating pressure 6 bar.
Max. operating temperature 95 °C.
■ It must not be able to be isolated from
the DHW cylinder.
4
■ Cover
■ Flange gasket
■ Cover with opening for feeding in the
power cable
■ Flange gasket
■ Never seal off the discharge pipe.
Expelled water should be safely and
visibly drained into a sewer. Place a
sign on the safety valve with the
inscription:
For safety reasons, hot water
(95 °C) may be discharged from the
discharge pipe during heating.
Arrange the hot water drain so that any
discharged hot water or steam cannot
represent a risk to individuals or dam-
age the system and materials in or on
the building.
■
!
Please note
DHW with temperatures in
excess of 60 °C can result in
scalding.
To limit the temperature to
60 °C, install a mixing device,
e.g. a thermostatically control-
led mixing valve (accessory).