Bellfires DERBY SMALL 3 CF Guide

This document is an essential part of your gas fire. Read it carefully before
installation and use of the gas fire and keep it in a safe place!
INSTALLATION INSTRUCTIONS &
MANUAL FOR MAINTENANCE
DERBY SMALL 3 CF/LF
Gas fire with closed combustion system
Bellfires wishes you many cosy evenings with your new Bellfires gas fire
Serial number:
Production date:

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Bellfires English
Installation instructions
BELLFIRES GAS FIRE WITH CLOSED COMBUSTION SYSTEM:
Derby Small 3 CF (Centre Fire) (DYS3 CF)
Derby Small 3 LF (Line Fire) (DYS3 LF)

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CONTENTS
Page
1. INSTALLATION INSTRUCTIONS .............................................................. 7
2. MAINTENANCE .....................................................................
................... . 67
3. FAULTS ...................................................
................................. ... . ... .......... . 68
4. DISMANTLING / ASSEMBLING OF THE GLASS
. .................... . .. ... ....... ... 69
5. DIAGRAM ELECTRICITY AND GAS ........................ ........................ ......... 75
6. DIMENSIONS ......................................................
.............................. .... .... . 76
7. TECHNICAL DETAILS/REGULATIONS .....................................
.. .. ... ......... 84
8. REPLACEMENT PARTS LIST .........................................
.......... .. ... .. . ........ 88
9. DISPOSAL OF PACKAGING AND APPLIANCE .........
...................... ... ..... . 91
The installation must only be carried out by a
“Gas Safe Register” registered installation engineer.
IMPORTANT

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1 INSTALLATION INSTRUCTIONS
1.1 GENERAL
The gas fire must be positioned and connected as a “room sealed system” (balance
flue) appliance by a “Gas Safe Register” registered gas installation engineer in
accordance with the following installation instructions, nationally and locally applicable
regulations (see “Technical Details/ Regulations” at the rear of this manual). If you have
any queries regarding the installation, please consult your local gas company.
Important: Before beginning the installation, check that the details on the
rating plate correspond to the gas type and pressure to which
the appliance will be connected.
The appliance is supplied with a “Centre Fire” or “Line Fire” double burner, as ordered.
These burners each have their own specific flame image which is defined by the
perforation pattern in the burner cover. See Chapter 5 and the Instructions for use.
The appliance is factory set to the correct nominal heat input. The pilot light is set to the
correct level of consumption.
Depending on the requested version, the appliance will be delivered from the factory
with a Ø100 mm - Ø150 mm or Ø130 mm - Ø200 mm concentric connection for
extracting the flue gases and supply of combustion air.
It is possible to install the gas fire with either a wall or roof outlet.
The roof connection must be carried out using the concentric flue system Ø100 mm -
Ø150 mm. The fumes are exhausted naturally to the outside environment through the
inner Ø100 mm pipe whereas the combustion air supply passes between the Ø100 mm
and Ø150 mm pipes.
The wall connection must be carried out using the concentric flue system Ø130 mm -
Ø200 mm. The flue gases are evacuated outside by means of natural draft through the
internal pipe of Ø130 mm, whereas the combustion air is supplied between the pipes of
Ø130 mm and Ø200 mm. The wall outlet itself is, depending on the concentric flue gas
system configuration, Ø100 mm - Ø150 mm or Ø130 mm - Ø200 mm. (In some cases,
with a wall connection, a complete concentric flue system Ø100 mm - Ø150 mm is also
possible (see Chapter 1.6.1).)
The gas fire can be installed in a completely sealed or mechanically ventilated house
without extra ventilation and/or fume extraction.
The gas fire can be installed as an insertion into an existing open fireplace or as
a built-in appliance in a new fireplace.
In order to prevent the fireplace heating up excessively, it must be properly
ventilated by installing vents at the top and bottom of the fireplace.

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Set documentation - Instructions for use
- Installation instructions
Attributes - Ceramic log set, or
marble pebbles white or marble pebbles grey
- Hook (for opening the frame and the glass)
The appliance can be fitted with a convection package as an optional extra. This is a
“convection jacket” (convection casing) for around and above the appliance, two flexible
aluminium pipes and two built-in convection vents. This enables hot air to be circulated
into the room.
If required, two additional convector grills can be fitted (= 1x extra convection set).
If an existing chimney is to be used, please consult your installer first. If the chimney
was previously used for a wood or coal fire, then it should be cleaned by an expert.
1.2 CONCENTRIC FLUE SYSTEMS Ø100 MM - Ø150 MM AND
Ø130 MM - Ø200 MM : • Bellfires (Muelink & Grol system)
• Poujoulat (PGI system)
• Ontop (Metaloterm US system)
The gas fire, in combination with the concentric flue system [Ø100 mm - Ø150 mm] and/
or [Ø130 mm - Ø200 mm] (rigid and/or flexible)
for the brands Bellfires (Muelink & Grol
system), Poujoulat (PGI system) or Ontop (Metaloterm US system), has been approved
in accordance with the European CE-norm for gas appliances and may therefore be
used only with these systems. The permitted components for these systems are listed
in Chapter 1.6.2. The guarantee on the appliance lapses if it is installed, fully or partially,
with other components or a different flue system.
The concentric flue [Ø100 mm - Ø150 mm] and [Ø130 mm - Ø200 mm] systems can be
used with either a newly-built or existing chimney.
N.B. If any part is missing, please contact your dealer.
1.3 INCLUDED

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1.4 OPTIONS AND ACCESSORIES
The following options and accessories can be supplied by your dealer:
Part no Accessorie
312829 Convection set General: (for convection air extraction)
302188 • 1x Flexible aluminium pipe Ø125 mm, L= 3 m (max.)
310178 • 2x Fitting box 135 x 135 mm
309872 • 2x Convection exit grid, white, 145 x 145 mm
309730 • 2x Collar adaptor Ø125 mm
304040 • 4x Hose clamp Ø125 mm
329874 Set carrying brackets (2 pieces)
3........ Bellfires (M&G) concentric flue system
See component summary
3........ Poujoulat (PGI) concentric flue system
See component summary
3........ Ontop (Metaloterm US) concentric flue system
See component summary
Part no Option
Convection package Derby Small 3
331142 • 1x Convection casing
331143 • 1x Top plate Convection
312829 • 1x Convection set General
330361 Set of high adjustable feet (4 pieces)
311960 Mantle iron L = 1000 mm

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1.5 PREPARATION FOR INSTALLATION
The following preparation must be carried out before the gas fire can be installed.
1.5.1 Instructions for positioning the outlet
1.5.1.1 Positioning the outlet for correct operation:
Roof-mounted outlet:
Figure 1: Roof-mounted outlet
This must be positioned at least 0.5 m from the roof edge;
the apex of the roof can be disregarded.
Wall-mounted outlet:
Figure 2: Wall-mounted outlet
This must be positioned at least 0.5 m from:
• the corner of the building.
• the roof overhang, the rain gutter.
• balconies etc., unless the exhaust construction
extends to at least the face of the protruding section.
>0.5 m
>0.5 m

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Installation instructions
1.5.1.2. Positioning the outlet to avoid affecting the surrounding area
All listed “distances” in this section are no more than
guidelines.
For the exact minimum “distances”, please consult your
national and local directives.
“Distance” = minimum distance required for positioning of the outlet to avoid
adverse effects with respect to:
A. A ventilation opening serving an occupied room, a toilet or a bathroom.
B. A heating air supply, when the supply flows through an occupied room.
C. A window that can be opened and that is near an occupied room, a toilet
or a bathroom.
Roof-mounted outlet:
To avoid adverse effects Distance: outlet - A, B or C
At the same roof level. >3 m (*)
At a different roof level. >1 m (*)
At a lower positioned wall. >1 m
At a higher sloping surface. >3 m (**)
(*) If the required distance cannot be achieved, the outlet position rules take
precedence.
(**) If the required distance cannot be achieved, the position of the outlet must
be at least 1 m above the highest facade/roof.

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Wall-mounted outlet:
To avoid adverse effects Distance: outlet - A, B or C
At walls in buildings with staggered Not permitted if A, B, or C are located
heights. above the outlet.
On a wall - general. (*) Above the outlet: >2 m
Below the outlet: >0.75 m
Left and right of the outlet: >0.75 m
At <1 m from the roof overhang. >2 m
Beneath balconies, walkways etc. >2 m from the underside of the
protruding balcony or walkway.
Beneath balconies, walkways >2 m
etc. where the outlet extends to
the front.
To the garden or on the terrace. >2 m to the outside space. (**)
With respect to a facing wall. >2 m (if the distance from the facing
wall is less, the criteria detailed for
“On a wall - general” apply).
Enquire at your local gas company for the regulations relating to outlets
positioned opposite each other and outlet(s) in facade(s) that form an angle.
(*) These minimum distances do not apply if there is an obstruction
between the outlet and A, B and C that protrudes at least 0.5 m from
the wall and has a length exceeding the distance.
(**) This distance is not required if the outlet is situated at least 1 m
higher than the intended area of the outside space.
If the outlet has a clearance of less than 0.5 m from the hard surface of a public area at
a height of less than 2 m, it must be fitted with an effective protector. The mesh size of
the guard must not affect the correct operation of the appliance.

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Installation instructions
1.6 GENERAL SERVICES
1.6.1 The Fume Channel/Combustion Air Intake
The combined fume channel and combustion air intake requires one of the following
concentric flue system configurations.
Important: Due to the high temperature of the outer walls
(approx. 150°C), no flammable materials may be located
or used in the vicinity of the flue system.
The complete flue system, must therefore be sleeved
with a heat resistant material after assembly.
Ventilate the covered concentric flue by fitting a
grid near the floor and ceiling (on each floor).
Do not insulate the concentric flue.
Use the universal wall/floor support Ø150 mm
to attach the covering of the concentric flue system
[Ø100 mm - Ø150 mm], see 1.6.2, drawing number 36.
Figure 3: Application universal wall/floor support Ø150 mm
Use as a wall support Use as a floor support
36
36

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RIGID CONCENTRIC FLUE Ø100 mm - Ø150 mm SYSTEM CONNECTION
POSSIBILITIES
18
10, 11, 12, 13
1
4
Y
28
16
17
16
24
23
24
23
(100)
Appliance: Concentric flue connection Ø100-Ø150 mm or Ø130-Ø200 mm
Figure 4: Vertical roof-mounted outlet without bend
ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
Item descriptions:
see 1.6.2
Assemble restriction plate:
Appliance: Distance Y Concentric Concentric
(min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
2.0 - 4.0 m Width: Width:
B = 30 mm B = 65 mm
Derby Small 3
4.0 - 12.0 m Width: Width:
B = 40 mm B = 80 mm

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Installation instructions
Figure 5: Vertical roof-mounted outlet with bend
(*) : (Y1+ Y2) : X > 2 : 1
(Vertical to horizontal ratio (or 45° upwards) is always at least 2 to 1)
ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
16
23
Y2
X
10, 11, 12, 13
14, 15
Y1
4
1
28
23
23
17
24
(100)
Assemble restriction plate:
Appliance: Distance Y1(*) Distance X (*) Distance Y1+ Y2(*) Concentric Concentric
(min.-max.) (min.-max.) (min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
Derby 1.0 - 11.0 m 0 - 3.0 m 1.0 - 11.0 m -Width:
Small 3 B = 40 mm
Item descriptions:
see 1.6.2

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ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
(100)
1
4
28
32
18
23
25
26
29
7
5
29
30
10, 11, 12, 13
Y
Appliance: Concentric flue connection Ø100-Ø150 mm or Ø130-Ø200 mm
Assemble restriction plate:
Appliance: Distance Y Concentric Concentric
(min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
2.0 - 4.0 m Width: Width:
B = 30 mm B = 65 mm
Derby Small 3
4.0 - 12.0 m Width: Width:
B = 40 mm B = 80 mm
Item descriptions:
see 1.6.2
Figure 6: Vertical chimney outlet using an existing lined chimney
(Flexible Ø100 mm and/or rigid Ø100 mm / Ø150 mm)
FLEXIBLE CONCENTRIC FLUE Ø100 mm - Ø150 mm SYSTEM CONNECTION
POSSIBILITIES

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Installation instructions
(*) : (Y1+ Y2+ Y3) : X > 2 : 1
(Vertical to horizontal ratio (or 45° upwards) is always at least 2 to 1)
ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
Y2
Y1
10, 11, 12, 13
> 45°
X
Y3
32
18
30
29
5
7
29
26
25
23 28
4
1
(100)
Item descriptions:
see 1.6.2
Assemble restriction plate:
Appliance: Distance Y1(*) Distance X (*) Distance Y1+ Y2 + Y3(*) Concentric Concentric
(min.-max.) (min.-max.) (min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
Derby Small 3 1.0 - 11.0 m 0 - 3.0 m 1.0 - 11.0 m -Width:
B = 40 mm
Figure 7: Vertical chimney outlet using a lined chimney with a bend > 45°
(Flexible Ø100 mm and/or rigid Ø100 mm / Ø150 mm)

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Installation instructions
ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
Y
7
6
8
1832
31
29
30
29
26
29
27
28
29
4
1
(100)
Item descriptions:
see 1.6.2
Assemble restriction plate:
Appliance: Distance Y Concentric Concentric
(min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
2.0 - 4.0 m Width: Width:
B = 30 mm B = 65 mm
Derby Small 3
4.0 - 12.0 m Width: Width:
B = 40 mm B = 80 mm
Figure 8: Vertical chimney outlet using an existing unsound lined
chimney or when no chimney liners are present
(Flexible Ø100 mm / Ø150 mm)

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Installation instructions
(*) : (Y1+ Y2+ Y3) : X > 2 : 1
(Vertical to horizontal ratio (or 45° upwards) is always at least 2 to 1)
ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
Y3
Y2
Y1
X
> 45°
6
8
7
31
29
32
18
30
29
26
29
27
28
29
4
1
(100)
Item descriptions:
see 1.6.2
Figure 9: Vertical chimney outlet using an existing unsound lined
chimney or when the chimney is unlined; with a bend >45o
(Flexible Ø100 mm / Ø150 mm)
Assemble restriction plate:
Appliance: Distance Y1(*) Distance X (*) Distance Y1+ Y2+ Y3 (*) Concentric Concentric
(min.-max.) (min.-max.) (min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
Derby Small 3 1.0 - 11.0 m 0 - 3.0 m 1.0 - 11.0 m -Width:
B = 40 mm

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Installation instructions
Figure 10: Horizontal wall termination
ALL SIZES INCLUDE THE LENGTH OF THE ROOF OR WALL TERMINATION
Item descriptions:
see 1.6.2
Assemble restriction plate:
Appliance: Distance Y Distance X Concentric Concentric
(min.-max.) (min.-max.) connection connection
on appliance is on appliance is
Ø100-Ø150 mm Ø130-Ø200 mm
0.5 - 1.0 m 0 - 0.6 m - -
Derby Small 3
1.0 - 2.0 m 0 - 1.6 m - -
Wall
Termination
Position
(100)
4
28
1
Y
X19
14
10, 11, 13
0.16 m
Appliance: Concentric flue connection Ø100-Ø150 mm or Ø130-Ø200 mm
RIGID CONCENTRIC FLUE Ø100 mm - Ø150 mm SYSTEM CONNECTION
POSSIBILITIES and with wall outlet Ø100 mm - Ø150 mm