Vaillant Solar System and auroSTOR unvented solar..., Руководство по запуску, обслуживанию и устранению неисправностей

Страница: 21 / 69

Manual - Solar hot water systems 0020009607_02 28
auroSTOR solar cylinders are available in three sizes:
200, 250 and 300 litres. The containers are made of
stainless steel and insulated with EPS.The cylinders are
equipped with all necessary cold and hot water control
devices and a motorised 2 port valve.
The auroSTOR cylinders are operated at the pressure of
the water supply pipe and do not need a cold water tank
for their supply. They have hot and cold water
connections of 22 mm diameter.A cold water supply of
appropriate pressure and flow rate is required to operate
the solar cylinder ideally (refer to Section 5.6.1, Cold
water supply pressure).
Control of the hot water temperature
The hot water temperature in the top half of the cylinder
can be optionally regulated by the Vaillant auroMATIC
VRS 560 solar control by means of the programmable
Vaillant VRT 360 room thermostat or a timer.
This will ensure maximum solar gains from your system.
If other controls are utilised then the VRS 560/2 can be
employed as a solar only controller and wired to work
with your chosen hot water control.
The temperature settings for solar water heating and
the maximum cylinder temperature are made by means
of this solar control, e. g. auroMATIC VRS 560. The
auroSTOR must be wired properly in order to adhere to
the G3 building regulations.
h Note
The solar pump must be connected to the solar
control via a safety thermostat (STB) (refer to
Section 5.8 “Electrical installation”). This
ensures that the solar pump is switched off if
the hot water temperature in the cylinder ex-
ceeds 90 °C.
Fig. 5.2 Attachment of the solar pump TCO
VIH S GB 200 S, VIH S GB 250 S and
VIH S GB 300 S
The thermal cut out and temperature sensor have been
pre-installed by the manufacturer.
1
Fig. 5.3 NTC capillary tube guide
A VR 10 temperature sensor ( 1 ) must be used instead of
the installed thermostat if the auroMATIC VRS 560 is
used (refer to Section 5.8.2, Electrical connection to the
cylinder control device, for the removal of the
thermostat).
5 Installation