Vaillant ecoCRAFT exclusive VKK GB 1206/3-E R1 Installation And Maintenance Instructions Manual page 11

5 Installation
5.1 Preparing for installation
Danger!
Risk of scalding and/or risk of material
damage due to incorrect installation lead-
ing to escaping water.
Stresses in supply lines can cause leaks.
▶
Install the supply lines without tension.
Caution.
Risk of material damage due to contamin-
ated lines.
Foreign bodies, such as welding remnants,
sealing residues or dirt in the supply lines,
may cause damage to the product.
▶
Blow or flush the supply lines thoroughly
prior to installation.
▶
Install an expansion relief valve on-site.
▶
A discharge pipe with inlet funnel and siphon must be
routed on-site from the discharge line of the expansion
relief valve to a suitable drain in the installation room.
The drain must be visible.
▶
Install a purging device at the highest point in the heating
installation.
▶
Install a filling/draining device in the heating installation.
Conditions: Plastic pipes present in the heating installation
▶
Install a suitable thermostat at the heating flow on-site in
order to protect the heating installation against temperat-
ure-related damage.
▶
Connect the thermostat to the terminals for the surface-
mounted thermostat (blue ProE plug).
▶
Use seals that are made of a paste-like fibre material
because seals that are made of rubber-like materials
may be subject to plastic deformation, which can lead
to pressure losses.
5.2 Required accessories (on-site)
The following required accessories (to be provided on-site)
are necessary for the installation:
–
Gas isolator cock with fire protection device
–
Expansion relief valve, heating side
–
Service valves (heating flow and return)
–
Low loss header (optional)
–
Heat generator pump
–
Expansion vessel
–
Controller
–
Flue pipe
–
Condensate pump (optional)
–
Neutralising unit
–
Automatic air vent
0020149561_01 ecoCRAFT exclusive Installation and maintenance instructions
5.3 Performing the gas installation
Using the incorrect type of gas may cause fault shutdowns in
the product. Ignition and combustion noise may occur in the
product.
▶
Only use the gas type listed on the identification plate.
▶
Make sure that the existing gas meter is capable of
passing the rate of gas supply required.
Caution.
Risk of material damage due to the gas
leak-tightness test.
At a test pressure of >11 kPa (110 mbar), gas
leak-tightness tests may cause damage to
the gas valve.
▶
If, during gas leak-tightness tests, you
also place the gas lines and the gas valve
in the product under pressure, use a max.
test pressure of 1.1 kPa (110 mbar).
▶
If you cannot limit the test pressure to
11 kPa (110 mbar), close any gas isolator
cocks that are installed upstream from the
product before you carry out the gas leak-
tightness test.
▶
If, during gas leak-tightness tests, you
have closed the gas isolator cock that is
installed upstream of the product, relieve
the gas line pressure before you open this
gas isolator cock.
▶
The cross-sections of the gas pipe must be designed to
suit the nominal floor-standing boiler heat loading.
▶
Install the gas line without tension on the connection in
the product (1) in accordance with the recognised rules of
engineering practice.
▶
Remove the residues from the gas pipe by blowing
through the gas pipe.
▶
Install a gas isolator cock with fire protection device in the
gas line, upstream from the product, at an easily access-
ible location. The gas stopcock must be at least the same
nominal size as the gas connection (R 1.5").
▶
Purge the gas line before start-up.
Installation 5
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