Bellfires UNC-2 40 Installation Instructions & Manual For Maintenance page 12

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1.7 GENERAL SERVICES
1 FLUE
There are 3 possible conventional fl ue connections:
• Appliance installed into a new chimney (e.g. stud work)
Top exit only: Ø4" (Ø100 mm for rigid pipe sleeved, or twin wall or Ø106 mm
‚ Appliance installed into an existing chimney
A Top exit
B Rear exit
Before installation, it must be verifi ed that the fl ue has suffi cient draw. Remove all
fl ue gas dampers (if present) in the fl ue or fi x them in the open position. The fl ue
must be at least 2 metres long. In order to prevent condensation in a masonry fl ue
and, if necessary, to improve correct operation of the appliance, it is recommended
that the fl ue be fi tted with an, (insulated) aluminium or (fl exible) stainless steel pipe
of Ø100 mm (4" or 5" minimum) (Top exit) or Ø178 mm (7" minimum) (Rear exit).
An protective cap must be placed on top of the chimney to prevent rain entering.
Where it concerns a new aluminium or (fl exible) stainless steel pipe, you need to
encase the entire fl ue pipe with fi reproof material. This in connection with the high
external temperatures of the fl ue pipe (up to + 300°C.). You must also never apply
and/or position fl ammable materials in the vicinity of the encased pipe.
2 VENTILATION OF THE ROOM
The ventilation of the room has to comply with national and local building regulations.
The minimum dimensions of the ventilation opening(s) are detailed in "Technical
Details/Regulations" at the rear of this manual. The ventilation opening(s) must be
non-closable !!!
3 GAS CONNECTION
The Ø8 mm gas connection is located, factory fi t, on the rear side of the appliance.
During installation the gas connection can also be made underneath or on either
side. Connect the gas supply to the appliance using a compression coupling. Use
only gas piping with a minimum diameter of 1/2" G with a shut-off valve.
A small gas tap is located, in the appliance, right-under the main burner.
Position the gas supply pipe such that it can be easily mounted after installation.
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for fl exible pipe sleeved, or twin wall) for a "Lined" installation.
Ø5" with adapter (option) for rigid or fl exible pipe.
For a "Lined" installation
Ø4" (Ø106 mm) or Ø5" (Ø127 mm) with adapter.
For an "Unlined" installation
minimum. Rear exit fl ue opening appliance is
(U.K. only).
Use of the rear fl ue exit, for an "unlined" installation,
is only allowed in the U.K.
Use a fl ue Ø7" (Ø178 mm)
217 x 34.5 mm
Installation instructions
English