Technical data

27
8) No combustible surface must be within 75 mm of the casing. If there
is need to adjust near a combustible surface, follow the clearances
on Table 2.
9) The appliance can be installed in a cupboard used for airing clothes
provided that the requirements of relevant National and local rules
and regulations (if any) are maintained.
10) The airing space must be separated from the boiler space by a
perforated non-combustible partition. Expanded metal or rigid wire
meshes are acceptable provided that the major dimension is less
than 13 mm.
11) Not withstanding those rules and regulations, room sealed appli-
ancemaybettedinacompartmentwithnoventsaslongasthe
minimum clearances stated in Air Supply, are maintained.
4.1.3 AIR SUPPLY
The appliance does not require a separate vent for combustion air.
Theappliancecanbettedinacupboardwithnoventsforcoolingbut
the minimum clearances must be increased to those given below. (Note:
the clearances at the front are for a removable panel, e.g. a door).
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL
19
10) The airing space must be separated from the boiler space by a perforated non-combustible
partition. Expanded metal or rigid wire meshes are acceptable provided that the major
dimension is less than 13 mm.
11) Not withstanding those rules and regulations, room sealed appliance may be fitted in a
compartment with no vents as long as the minimum clearances stated in Air Supply, are
maintained.
4.1.3 AIR SUPPLY
The appliance does not require a separate vent for combustion air.
The appliance can be fitted in a cupboard with no vents for cooling but the minimum
clearances must be increased to those given below. (Note: the clearances at the front are for a
removable panel, e.g. a door).
Table 3 Minimum clearances for cupboard installation.
Above the flue turret
150 mm
In front
250 mm
Below
200 mm
Right-hand side
75 mm
Left-hand side
75 mm
If the appliance is to be fitted in a cupboard or compartment with less clearance than those in
the table above (minimum clearances are given in the “Boiler Location” section) then
permanent air vents for cooling are required. Both located at high and low levels, all vents
connecting directly to outside air or to a room. Both vents must pass to the same room or be
on the same wall to the outside air.
The minimum free areas required are given in Table 4:
Table 4 Minimum ventilation areas for cupboards without sufficient clearance.
Position of air vents
Air from another room
Air direct from outside
High level
260 cm²
130 cm²
Low level
260 cm²
130 cm²
Iftheapplianceistobettedinacupboardorcompartmentwithless
clearance than those in the table above (minimum clearances are given
in the “Boiler Location” section) then permanent air vents for cooling
are required. Both located at high and low levels, all vents connecting
directly to outside air or to a room. Both vents must pass to the same
room or be on the same wall to the outside air.