Technical data

4.1 The appliance may be installed in any room although partic-
ular attention is drawn to the requirements of the current I.E.E.
Wiring regulations BS 7671 and, in Scotland, the electrical provi-
sions of the building regulations applicable to Scotland; with
respect to the installation of appliances in rooms containing
baths or showers.
Where a room sealed appliance is installed in a room containing
a bath or shower, any electrical switch or appliance control
using mains electricity must not be able to be touched by a per-
son whilst using the bath or shower.
4.2 The appliance is a through the wall appliance not suitable
for external installation.
4.3 It is recommended the appliance should only be installed
where outside the property the maximum height from the bot-
tom of the appliance is 1.5 metres above a suitable hard stand-
ing from which servicing and maintenance can be safely carried
out.
4.4 The appliance must be positioned on an external wall such
that the flue terminal can safely discharge the flue gases as
described in Section 7.
4.5 The appliance must be installed on a suitable load bearing
external wall that is capable of supporting the weight of the
appliance.
4.6 Specified clearances must be available for installation and
servicing see fig. 5 and below:
(a) Above - 150mm
(b) In front - 600mm
(c) Below - 100mm
(d) Right and left hand side - 10mm
See Figs. 2, 3 and 7.
For installation and servicing of the appliance the cabinet should
be removed as follows:
5.1 Remove the cabinet by pulling the bottom of the cabinet for-
wards to release the ball studs. Lift the cabinet upwards and for-
wards to release from the locating slots and slide the cabinet for-
wards.
5.2 The internal control box can be removed by undoing the
two screws on the front of the facia. There is an earth loom that
connects the internal control box to the wall mounting duct,
release the wire from the earth rivet and push back through the
hole in the back of the internal control box.
Remove the split pin from the thermostat phial pocket located in
the front, right hand side of the boiler. Carefully withdraw the
control and automatic high limit thermostats from the pocket
noting their positions.
Carefully lift the phial retaining spring so that the manual reset
overheat, manual reset duct and frost thermostats can be pulled
out from the springs noting their positions.
Remove the two screws holding the internal control box to wall
mounting duct and slide out the internal control box; place the
control box in a safe place next to the appliance being careful
not to damage the burner cable and taking care not to kink the
thermostat capillary tubes.
5.3 Remove the external cover by undoing the two fixings
underneath the cover and padlock if fitted. Pull the bottom of
the cover so it clears the bottom of the external duct/flue and
lift up to release the two locating tabs from the top of the duct.
6.1 The appliance does not require a separate vent for com-
bustion air.
6.2 Installation in cupboards or compartments require per-
manent vents for cooling purposes, one at high level and one
at low level, either direct 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 air vent free area is given in
Table 3.
6.3 There must be sufficient clearance around the appliance
to allow proper circulation of ventilation air. The clearances
required for Installation and Servicing will normally be ade-
quate for ventilation. See Section 4.6.
6. Air Supply
5. Removal of the Cabinet
and External Cover
4. Siting the Appliance
7
Table 3. Minimum air vent free area for room sealed
appliances installed in a compartment.
Appliance
Ventilation to room or
Ventilation to outside
model
internal space
High Level Low Level High Level Low Level
12/19 209cm
2
209cm
2
105cm
2
105cm
2
Fig. 5. Appliance casing dimensions and
required clearance
SIDE
VIEW
100mm*
FRONT
VIEW
420mm
600mm
10mm*
10mm*
**315mm
150mm*
600mm*
* Space required for installation and servicing
** Optional 285mm if fitted within a 300mm unit
* Space required for installation and servicing
300mm*
OUTSIDE
PROPERTY
INSIDE
PROPERTY
EXTERNAL
COVER
INSIDE
PROPERTY