6
Mynute
Fig. 5 A
Make-up
vessel or tank
Automatic
air-vent
Non-return
valve
Stopcock
5.0 metres minimum
Heating return
Fig. 6
3.6.8
FREQUENT FILLING
Frequent filling or venting of the system may be
indicative of a leak. Care should be taken during
the installation of the appliance to ensure all
aspects of the system are capable of withstand-
ing pressures up to at least 3 bar.
3.7
ELECTRICAL SUPPLY
The appliance is supplied for operation on 230V
@ 50Hz electrical supply; it must be protected
with a 3-amp fuse. The method of connection to
the mains electricity supply must allow for
complete isolation from the supply. The preferred
method is by using a double-pole switch with a
contact separation of at least 3 mm. The switch
must only supply the appliance and its
corresponding controls, i.e. time clock, room ther-
mostat, etc. Alternatively an un-switched shuttered
socket with a fused 3-pin plug both complying
with BS 1363 is acceptable.
3.8
MOUNTING ON A COMBUSTIBLE SURFACE
If the appliance is to be fitted on a wall of combus-
tible material, a sheet of fireproof material must
protect the wall.
3.9
TIMBER FRAMED BUILDINGS
If the appliance is to be fitted in a timber framed
building, it should be fitted in accordance with the
Institute of Gas Engineers publication (IGE/UP/
7) “Guide for Gas Installations in aTimber Frame
Buildings”.
3.10
CONDENSATE DISPOSAL
When choosing a location for the boiler,
consideration should be given to the disposal of
the condensate discharge into a suitable drain or
soil pipe. The condensate outlet pipe must be
connected to the drain in accordance with building
regulations or other rules in force.
3.11
INHIBITORS
Vokera recommend that a inhibitor – suitable for
use with aluminium heat exchangers – is used to
protect the boiler and system from the effects of
corrosion and/or electrolytic action. The inhibitor
must be administered in strict accordance with
the manufacturers* instructions.
*Fernox and Sentinel manufacture products that
have proved suitable for use with Vokera
appliances. Vokera Ltd. cannot comment on the
suitability of any other such product with our
appliances.
This appliance must be installed by a competent
person in accordance with and defined by, the
Standard Specification (Domestic Gas
Installations) Declaration (I.S. 813).
3A.1
RELATED DOCUMENTS
The installation of this boiler must be in accordance
with the relevant requirements of the local building
regulations, the current ETCI National Rules for
Electrical Installations, and the bylaws of the local
water undertaking.
It should be in accordance also with any relevant
requirements of the local and/or district authority.
3A.2
LOCATION OF APPLIANCE
The appliance may be installed in any room or
internal space, although particular attention is
drawn to the requirements of the current ETCI
National Rules for Electrical Installations, and I.S.
813, Annex K.
When an appliance is installed in a room or
internal space containing a bath or shower, the
appliance or any control pertaining to it must not
be within reach of a person using the bath or
shower.
The location chosen for the appliance must permit
SECTION 3A
GENERAL REQUIREMENTS (EIRE)