13.0
CHANGING COMPONENTS
IMPORTANT: When changing components ensure that both
the gas and electrical supplies to the boiler are isolated
before any work is started.
See Section 12 : “Annual Servicing” for removal of case, panel,
door etc.
32
© Dimplex Boilers 2008
13.1
IGNITER
1. Disconnect the two feed wires, earth wire and electrode
lead noting their positions (Fig. 53).
2. Undo the two screws securing the igniter to its bracket and
remove the igniter. Reassemble in reverse order.
13.2
SPARK AND SENSING ELECTRODES
1. Disconnect the electrode leads, noting their positions
(Fig. 56).
2. Using a 3mm Hex key, remove the retaining screws securing
each of the electrodes to the burner door and remove the
electrodes.
3. Check the condition of the sealing gaskets and replace if
necessary. Reassemble in reverse order and then check that
the electrode gaps are as shown in Fig. 54 & 55.
Fig. 53
Fig. 54
Fig. 55
Fig. 56
Igniter
Gasket
6mm ± 0.5
to Burner
4mm ± 0.5
10mm ± 0.5
7.0
SITE REQUIREMENTS
7.7
FLUE
1. This high efficiency boiler will discharge a plume of water
vapour from the flue. This should be considered when siting
the flue terminal.
2. The following guidelines indicate the general requirements
for siting balanced flue terminals. For GB recommendations are
given in BS 5440 Pt 1. For IE recommendations are given in
the current edition of I.S. 813 “Domestic Gas Installations”.
3. If the terminal discharges onto a pathway or passageway,
check that combustion products will not cause a nuisance and
that the terminal will not obstruct the passageway.
4. If a terminal is less than 2 metres above a balcony,above
ground or above a flat roof to which people have access, then
a suitable terminal guard must be provided - Part No: 951507.
IMPORTANT:
• Only O
ONE of the 25mm clearances (Positions ‘O’ to ‘S’ in
the chart below) is allowable per installation.
• Under car ports we recommend the use of the plume
displacement kit.
• The terminal position must ensure the safe and nuisance
- free dispersal of combustion products.
© Dimplex Boilers 2008
17
NOTE: The minimum distance from a flue terminal to a boundary line is 300mm.
If fitting a plume diverter kit, the air inlet should be a minimum of 100mm from
any opening windows or doors.
NOTE A: A terminal should
be no closer than 150mm
to an opening in the
brickwork intended to
accommodate a fitting
such as a window frame.
NOTE: Fitting of the deflector
elbow is recommended when
installing boiler to minimum
clearance of 25mm as
detailed in positions O & P.
A
M,L
M,L
N
C
F
P
O
O
R
N
S
C
C
N
Flue terminals that require a guard fitting
P
B
J
H
N
N
G
Q
K
D
E
Position
Description
Minimum Distance (mm)
A
Horizontally to an opening, air brick, opening window - see note A
300
B
Above an opening, air brick, opening window etc. - see note A
300
C
Below an opening, air brick, opening window etc. - see note A
300
D
Below windows or openings on pitched roofs
2000
E
Adjacent to windows or openings on pitched and flat roofs
600
F
From an adjacent opening window (vertical only)
1000
G
From an adjacent wall to flue (vertical only)
300
H
Horizontally from a terminal on the same wall
300
J
Vertically from a terminal on the same wall
1500
K
From an opening in a carport (e.g. door, window) into the dwelling
1200
L
From a terminal facing a terminal (horizontal flue)
1200
From a terminal facing a terminal (vertical flue)
600
M
From a surface or boundary line facing a terminal
600
N
Above ground, roof or balcony level
300
O
From an internal or external corner
25
P
From a vertical drain pipe or soil pipe
25
Q
Below balconies or car port roof
25
R
Below eaves
25
S
Below gutters, soil pipes or drain pipes
25
300mm Min 300mm Min
Adjoining Properties Boundary Line
TERMINAL POSITION
Fig. 18
Fig. 19
48pp MANUAL SPREADS 19/10/10 08:36 Page 17
