Removing/Installing The Protective Cover; Installation; Installing The Air Supply And Air Exhaust - Vaillant aroSTOR VWL B 200/5 UK Installation And Maintenance Instructions Manual

▶
In order to avoid noise disturbance, do not install the
product near bedrooms.
▶
We recommend maintaining a clearance of at least
300 mm above and below the unit to allow the upper
cover plate to be removed and to enable maintenance
work to be carried out on the magnesium protection
anode and the electric back-up heater.
4.7

Removing/installing the protective cover

4.7.1 Removing the covering hood
A
x1
1. Turn the screw (A) on the product's ring by a few milli-
metres using a Torx screwdriver.
2. Turn the unit out of the covering hood (B) and turn the
ring anti-clockwise in order to loosen the lugs on the
bayonet fitting.
3. Lift the unit out of the upper covering hood (C) and
ring, and remove it.
4.7.2 Installing the covering hood
1. Install the unit from the upper covering hood (C) and
ring.
2. Turn the unit out of the covering hood (B) and turn the
ring clockwise by a few millimetres in order to allow the
lugs on the bayonet fitting to click into place.
3. Ensure that the insulating material is not damaged.
4. Ensure that the ring is positioned correctly on the do-
mestic hot water cylinder and the lugs on the bayonet
fitting are not bent.
5. Secure the ring by tightening the screw (A).
5

Installation

Caution.
Risk of material damage due to heat trans-
fer during soldering.
▶
Do not carry out any welding work in the
area of the product's connectors.
▶
Before any welding work, insulate the wa-
ter-carrying pipes on the product's outlet
and the installation.
10
B
C
Danger!
Risk of scalding and/or damage due to
incorrect installation leading to escaping
water.
Mechanical stresses in the connection pipes
may lead to leaks.
▶
Ensure that there is no mechanical stress
when installing the connection pipes.
Caution.
Risk of damage in the pipelines due to
residue.
Residue from pipelines, such as welding
beads, scale, hemp, putty, rust and coarse
dirt, may be deposited in the product and
cause malfunctions.
▶
Flush the pipelines thoroughly before con-
necting to the product in order to remove
any possible residue.
Note
To comply with the requirements of the G3
construction regulation, this product is fitted with
a temperature and pressure relief valve at the
factory in accordance with standard BS EN 1490.
Diversions from a water-heating system must be
guided to a point at which they are visible without
putting anybody in the building in danger. The
tundish and the drain hose must be installed in
accordance with the requirements of the approved
document Building Regulation G3 (England and
Wales), from part P for Northern Ireland and
standard 4.9 for Scotland.
5.1

Installing the air supply and air exhaust

5.1.1 Selecting air duct systems
Caution.
Risk of material damage caused by incor-
rect installation.
▶
Do not connect the product to extractor
hoods.
1. Use only commercially available, insulated air ducts
with suitable heat insulation, to prevent energy loss
and condensation from forming on the air ducts.
Maximum length of the air pipes L1 + L2 (L1 = air in-
take pipe; L2 = air outlet pipe)
Standard value
Condition: Flexible pipes
Installation and maintenance instructions 0020285063_05
L1 + L2
10 m
Note
In addition to the total
length, two 90° el-
bows can be added.