Vaillant uniSTOR - Control Component Combinations

22 Installation and maintenance instructions for uniSTOR 0020111105_00
> Remove the top front cladding from the cylinder.
> Dismantle the electric immersion heater cover.
> Install a separate electrical power supply for the
electric immersion heater in accordance with current IEE
regulations (BS 7671).
– Use heat-resistant cables (1.5 mm
2
, 3-wire HOFR-coa-
ted) as per BS 6141 for the cabling of the electric
immersion heater.
– Use the cable grip(2) to firmly secure the supply
cable of the immersion heater.
– Connect the electric immersion heater to the power
mains via a double pole isolating switch with a contact
separation of at least 3 mm in both poles.
– Protect the circuit using a 16 A fuse.
> Mount the cover for the electric immersion heater.
i
Only switch the immersion heater on once
the cylinder is completely full.
With the isolating switch, the electric immersion heater
can be switched on if the reheating device has malfunc-
tioned.
5.5.3 Options for combining control components
> For the installation, use the connection wiring diagram
specified in Tab. 5.2 for the gas-fired wall-hung boiler
and control components used.
Gas-fired wall-hung boiler used
eBUS-compatible gas-fired wall-hung boiler such as the
Vaillant ecoTEC or non-eBUS-compatible gas-fired wall-
hung boiler from Vaillant or a third-party manufacturer.
Wiring
Wiring via the Vaillant VR 61 mixer module or Control
Center VR 65 as a system solution which enables Vail-
lant dual-channel eBUS controllers (low-voltage) to be
used with valves and domestic hot water cylinders in the
traditional 230 V range in the English market. Alterna-
tively, using a standard cabling box.
Control system of the heating circuits
The heating circuits can be controlled via Vaillant pro-
grammable room thermostats or weather compensators
in conjunction with the Vaillant range of eBUS-compati-
ble gas-fired wall-hung boilers. You can also use tested
standard operating elements (see above).
For an overview of the combination options for these
control components, see Tab.5.2.
i
All wiring must be carried out in accordance
with BS7671: "Requirements for electrical instal-
lations" (IEE wiring regulations, current edition).
Regulation of cylinder reheating
The regulation of the reheating of the cylinder takes
place via a Vaillant dual-channel eBUS controller or
a timer (third-party manufacturer).
5 Installation