Commissioning The Gas-Fired Wall-Hung Boiler; Filling In The Cylinder Commissioning Checklist; Handover To The Operator - Vaillant uniSTOR Operating Instructions Manual

6.5

Commissioning the gas-fired wall-hung boiler

> Make sure that the control device and thermostats are
set so that heating is required.
> Carry out the commissioning and testing measures for
the gas-fired wall-hung boiler in accordance with the ins-
tallation instructions.
> Check whether the gas-fired wall-hung boiler starts ope-
rating and the water in the cylinder and radiators heats
up in accordance with the hot water and room
thermostat settings.
> Following completion of the commissioning procedure,
use the controller to set the hot water temperature to a
maximum of 60°C in order to achieve the highest degree
of energy efficiency. If you are controlling the hot water
temperature via the cylinder thermostat installed in the
cylinder, switch the cylinder thermostat (2) on. Set the
electric immersion heater thermostat (1) to the required
temperature.
> Reattach the cover for the electric immersion heater and
the upper front cladding of the cylinder.
> Regulate the hot water thermostat mixer via the adjus-
ting knob to maintain the required temperature on the
hot water taps.
6.6

Filling in the cylinder commissioning checklist

> Fill in the benchmark cylinder commissioning checklist
located on the last few pages of these instructions.
Installation and maintenance instructions for uniSTOR 0020111105_00
6.7

Handover to the operator

You must brief the operator of the unit on the handling
and function of the cylinder.
> Provide the operator with all relevant instructions and
unit documentation.
> Go through the operating instructions with the operator
and answer any questions.
> Draw special attention to the safety instructions which
the operator must follow.
> Inform the operator of the necessity of ensuring the
regular inspection/maintenance of the system (inspec-
tion and maintenance contract).
> Make the operator aware that the instructions must be
kept near to the cylinder and must be accessible
to anyone working on the cylinder.
> Inform the operator of the correct (efficient) settings for
temperatures, controllers, and thermostatic radiator
valves.
> Explain to the operator how to safely use the cylinder
and control devices.
> Inform the operator of the required precautionary mea-
sures to prevent damage to the system and building if
the system is not kept in operation during frost.
> In addition, inform the operator that the electric immer-
sion heater is intended as a reserve appliance for water
heating and must not be used to heat water in the cylin-
der at the same time as the gas-fired wall-hung boiler.
i
In regions with hard water, the set hot water
temperature must not exceed 60 ºC to avoid
scaling.
For more information, contact Vaillant customer service.
Commissioning 6
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