Hoval TopGas 80, Руководство по установке

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ASSEMBLY
4.2 Boiler installation room
Hoval heat output boilers series TopGas
®
(80) can be
combined with flue gas pipelines which
a) extract the combustion air from the boiler
installation room (room air dependent gas firing
location)
b) extract the combustion air from the outside via a
closed system (room air independent gas firing)
The boiler installation rooms must satisfy the locally ap-
plicable regulations (firing regulation, fire service regulati-
ons), in particular the requirements according to:
- SVGW- Leitsätze
- DVGW - TRGI 86-96
must to be noted an complied with.
With room air dependent operation, care is to be taken
that the combustion air is free from impurities (dust, buil-
ding materials...) and aggressive substances (halogens
such as chlorides, fluorides etc.). The gas boiler should
not be connected to the gas supply or put into operation
whilst building work is still in progress.
4.2.1 Installing the boiler
The Hoval TopGas
®
(80) is delivered as follows.
Carton: Boiler; cladding components, installation and
operating instructions.
NOTE
The boiler must not be placed on its connec-
tor elements.
Mount the boiler to the wall at the planned location. Di-
stance from the side: at least 5 cm; distance from the
ceiling: the necessary distances are to be observed ac-
cording to the type and dimensions of the pipelines for
combustion air and flue gas.
Please note dimensions and instructions in
the drawings in section 3.3.
4.3 Hydraulic connection
The Hoval TopGas
®
(80) is suitable for flexible operation
(room temperature control or weather-supported boiler
and heating control) temperature limiting.
For suitable hydraulic connections, please note the inst-
ructions in the Hoval project planning documentation.
NOTE
When modernising an old heating system
with an open expansion tank, this is to be
converted to a “closed” heating system with a
diaphragm expansion tank and safety valve.
4.3.1 Protection planning guidelines for the hy drau-
lic connection
• The installation of a sludge collector in the boiler return
is recommended (ensure correct dimensioning).
• An adequately dimensioned expansion tank must be
provided.
• The minimum pre-pressure in the expansion tank must
be 1.2 bar and the working pressure in the heating boi-
ler must be 1.5 bar.
• The pump is to be connected in the boiler return and
the expansion tank in the suction side of the pump.
• If the system pressure cannot to be reached (e.g. roof
central heating plants), the expansion tank must be in-
stalled in the flow line. (Note: starting from 70°C an ad-
ditional connecting tank is necessary).
• Plants with
- continuous oxygen intake (e.g. underfloor heating
systems without diffusion proof plastic piping) or
intermittent oxygen intake (e.g. where frequent refil-
ling is necessary)
must be equipped with separate circuits.
We also recommend the conclusion of a main-
tenance contract!
4.3.2 Boil-dry safeguard
To safeguard the boiler against low water levels or water
deficiency, a water pressure deflector is installed as stan-
dard in the flow distributor (AMP connector at positions 1
and 3). If water pressure is lower than 1 bar power dis-
connection takes place (indication „P27“). Please check
the system pressure and top up with water as required.