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Remeha Gas 3002 ECO Seite 22

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Remeha
Gas 3002 ECO
9. GAS SUPPLY
9.1 General
The local Gas authority should be consulted to ensure
that an adequate pressure and supply is available, at the
boilers maximum output. The gas supply should be con-
form to the British Gas Safety regulations.
The gas connection of the boiler (1
1
/
4
" for boilers with 7
and 9 sections, 2" for boilers with 11 to 19 sections) is
located at the same side as the water connections and
the air supply connection (in room sealed form).
The standard location of these connections is top left
on the boiler. If specified when ordering, it is possible to
have the connections installed at the top right side.
The water connections, the gas connection, the air
supply connection (in room sealed form) and the
control panel are always located at the same side.
The gas multibloc of the 7 and 9 section boilers include
a gas filter. Therefore, no extra filters are needed in the
gas supply pipe.
The 11 to 19 section boilers have no filter mounted in
the gas multi bloc. A gas filter with the fineness of 50
microns has to be installed in the gas supply pipe.
9.2 Pressure test of the gas installation
Gas installations must be gas tight and tested to current
safety standards.
During the pressure test, the boiler equipment must be
isolated from the main gas pipe.
9.3 Gas pressures
Gas supply pressure: 17-30 mbar.
Higher gas supply pressures only in consultation with the
gas company.
Maximum gas pressure at inlet:
- 7 and 9 sections: 50 mbar
- 11 to 19 sections: 100 mbar
Minimum gas pressure at inlet: 17 mbar.
8. ASSEMBLY GUIDELINES AND INSTALLATION INSTRUCTIONS FOR THE HEATING ENGINEER
8.1 General
The Remeha Gas 3002 ECO is delivered unassembled.
The dimensions allow for transportation of all parts to the
boiler room through normal access doors.
The casing and equipment parts are packed.
8.2 Water connections
The water connections consist of flanges to DIN 2633,
BS 4504 PN16 (DN 65 for boilers with 7 to 11 sections
and DN 80 for boilers with 13 to 19 sections) and are
located at the same side as the gas and air supply
connections (in room sealed construction). The standard
location of these connections is the top left on the boiler.
If specified when ordering, it is possible to have the con-
nections installed at the top right side.
The water connections, the gas connection, the air
supply connection (in room sealed form) and the
control panel are always located at the same side.
Just below the flange of the flow connection there is a
1
1
/
4
" welding socket for fitting of a safety valve (see para.
8.4). Furthermore, a pocket (Ø 15 mm) for installation of
a weather compensated boiler control is located in the
flow piping underneath the boiler casing.
As an option, it is also possible to get the boiler delivered
with separate flow and return connections (DN 65) for
the second heat exchanger (ECO).
8.3 Water pressure
Each boiler section undergoes a test pressure of 12 bar.
The max. test pressure of an assembled boiler is 6 bar.
The boilers are designed for operating pressures
between 0.8 bar and 6 bar.
8.4 Safety valve
The size and location of the safety valve must comply
with the relevant requirements. A 1
1
/
4
" connection for fit-
ting of
a safety valve is located underneath the flange of the
flow connection.
Note:
To enable disassembly of the side panel casing, the
safety valve must not be installed directly next to the
boiler.
8.5 Filling, refilling and venting of the installation
Initial filling of an installation can be done via the boiler
fill and drain off cock. Refilling must be done at another
place, to avoid thermal stresses in the boiler.
Before filling, open the caps of the automatic vents instal-
led on the opposite side of the connections on the end
section of the primary heat exchanger and on the return
box of the secondary heat exchanger. The installation
must be vented at the highest point, when the entire
installation has been heated to approximately 80°C and
the pumps have been switched off.
8.6 Boiler draining
The boiler should be drained via the fill and drain off
cocks of the boiler. It is recommended to drain the entire
instal- lation at another place to avoid the penetration of
any dirt from the installation into the boiler.
… 22 …

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Andere Handbücher von Remeha Gas 3002 ECO

Remeha Gas 3002 ECO Bedienungsanleitung - Deutsch - 28 seiten

Remeha Gas 3002 ECO Bedienungsanleitung - Holländisch - 2 seiten


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