INSTALLATION REQUIREMENTS
3
3.1
STATUTORY REQUIREMENTS
GAS SAFETY (INSTALLATION AND USE) REGULATIONS
1996 (AS AMENDED)
The appliance is suitable only for installation in GB and IE and
should be installed in accordance with the rules in force.
In GB, a CORGI Registered Installer must carry out the
installation. It must be carried out in accordance with the relevant
requirements of the:
Gas Safety (Installation and Use) Regulations
The appropriate Building Regulations either The Building
Regulations, The Building Regulations (Scotland), Building
Regulations (Northern Ireland).
The Water Fitting Regulations or Water Byelaws in Scotland.
The Current I.E.E Wiring Regulations.
Where no specific instructions are given, reference should be
made to the relevant British Standard code of Practice.
In IE, the installation must be carried out by a Competent Person and
installed in accordance with the current edition of I.S.813 “Domestic
Gas Installations”, the current Building Regulations and reference
should be made to the current ETCI rules for electrical installation.
It should also be in accordance with the relevant
recommendations in the current editions of the following British
Standards and Codes of Practice: BS 5449, BS 5546, BS 5440-
1, BS 5440-2, BS 6798, BS 6891, Institute of Gas Engineer
document IGE/UP-7, BS 7074 (expansion vessel), BS 5482
(propane installations) and IS813 for IE.
IMPORTANT NOTE:
Manufacturer's instructions must NOT be
taken in any way as overriding statutory obligations.
3.3
FLUE TERMINAL POSITION
Detailed recommendations for flue installation are
given in BS 5440-1. The following notes are for
general guidance.
a)
The appliance MUST be installed so that the terminal is
exposed to the external air.
b)
It is important that the position of the terminal allows free
passage of air across it at all times.
c)
It is ESSENTIAL TO ENSURE that products of combustion
discharging from the terminal cannot re-enter the building or any other
adjacent building, through ventilators, windows, doors, other sources
of natural air infiltration, or forced ventilation / air conditioning.
d)
The minimum acceptable dimensions from the terminal to
obstructions and ventilation openings are specified in Figure 5.
e)
If the terminal discharges into a pathway or passageway
check that combustion products will not cause nuisance and that
the terminal will not obstruct the passageway.
f)
Where the lowest part of the terminal is fitted less than 2000
mm (78 in) above the ground, above a balcony or above a flat
roof to which people have access, the terminal MUST be
protected by a purpose designed K6 terminal guard (optional
extra: Part No. 951507).
g)
The air inlet / flue outlet MUST NOT be closer than 25 mm (1
in) to combustible material.
h)
Condensing appliances have a tendency to form a plume of
water vapour at the terminal under certain operating conditions.
This is normal but positions where this would cause damage or a
nuisance should be avoided. Consideration should be given to
the dispersal of the plume in terms of adjacent surfaces and
neighbouring properties. A special flue terminal, (Kit C), is
available to raise the flue discharge point; use of this terminal will
limit the maximum flue length available. For further information
contact: Halstead Boilers Ltd, Service Help Line: 01926 834834.
3.2
APPLIANCE LOCATION
The following limitations MUST be observed when
siting the appliance:
a)
The appliance is not suitable for external installations. The
position selected for installation should be within the building,
unless otherwise protected by a suitable enclosure and MUST allow
adequate space for installation, servicing and operation of the
appliance and for air circulation around it (Section 2.4 and 3.4).
b)
This position MUST allow for a suitable flue system and
terminal position. The appliance must be installed on a flat
vertical wall, which is capable of supporting the weight of the
appliance and any ancillary equipment.
c)
If the appliance is to be fitted in a timber framed building it
should be fitted in accordance with the British Gas publication
'Guide for Gas Installations In Timber Frame Housing', Institute of
Gas Engineers document IGE/UP-7. If in doubt, advice must be
sought from the Local Gas Supplier.
d)
The appliance is approved to a protection rating of XXXX.
Therefore if the appliance is to be installed in a room containing
a bath or a shower, any electrical switch or control utilising mains
electricity must be so situated that it cannot be touched by a
person using the bath or shower. Attention is drawn to the
requirements of the current BS 7671 (I.E.E Wiring Regulations)
and in Scotland the electrical provisions of the Building
Regulations applicable in Scotland. (This section under review!)
3.4
VENTILATION REQUIREMENTS
Detailed recommendations for air supply are given in BS 5440-2.
The following notes are for general guidance.
a)
It is not necessary to have a purpose provided air vent in the
room or internal space in which a room-sealed appliance is
installed.
b)
Cupboard or compartment ventilation is not necessary for a
room-sealed appliance providing that the minimum clearances are
maintained.
c)
Where an open flued, (B23), system is used, then an air vent
must be provided in the same room or internal space as the flue
duct air inlet, with a minimum free-area of at least:
VBX 30
117 cm
2
VBX 18
57 cm
2
9
REPLACEMENT OF PARTS
9
Before commencing any service operation, ISOLATE the mains
electrical supply and TURN OFF the gas supply at the main
service cock.
Replacement of most parts first requires the removal of the sealed
chamber front panels; refer to section 6.2.
There may be some slight water spillage; so electrical components
should be protected.
It is the law that any service work must be carried out by a
registered person.
Refer to Figure 33
a)
Ensure supply voltage is isolated, and that the gas supply is
isolated.
b)
Remove the gas control valve, fan & burner assembly; refer to
section 6.2.
c)
Unscrew the two screws holding the electrode, remove
electrode, and used gasket.
ELECTRODES
9.1
IGNITION AND DETECTION
Refer to Figure 34
a)
Ensure supply voltage is isolated.
b)
Remove the plug and earth lead from the ignition electrode.
c)
Remove the electrical supply leads.
d)
Unscrew the two screws holding the igniter unit, remove
igniter unit.
e)
Fit the new igniter unit.
g)
Re-assemble in reverse order; ensure that the igniter unit is
orientated as shown in Figure 34, and that the brown electric
supply lead is fitted to position 1 on the igniter unit.
h)
Ensure that all joints and seals are correctly re-fitted.
9.2
IGNITER UNIT AND IGNITION LEADS
33
34
IGNITOR UNIT AND IGNITION LEADS
IGNITION AND DETECTION
ELECTRODES
d)
Fit the new electrode, and new gasket.
e)
Check that electrode is aligned as detailed in Figures 29(a) or
29(b).
f)
Re-assemble in reverse order. Ensure that all joints and seals
are correctly re-fitted.
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