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5. Before installation
5.1 Installation regulations
WARNING
Installation of the appliance must be done
by a qualified engineer in accordance with
prevailing and national regulations as listed
below.
Building Regulations G3
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The Building Standards (Scotland)
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The Building Regulations (Northern
�
Ireland)
I.E.E Electrical Regulations
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UK Water Regulations
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5.2 Installation requirements
Water supply
It is recommended that the maximum water demand is
assessed and the water supply checked to ensure this
demand can be satisfactorily met.
We suggest the minimum supply requirements
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should be 0.04MPa (0.4 bar) pressure.
A 15mm cold water supply is recommended.
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The higher the available pressure and flow rate the
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better the system performance.
The appliance has a maximum operating pressure
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of 0.2Mpa (2 bar, 20 meteres head).
Limitations
The appliance should not be used in association with
any of the following:
Situations where maintenance is likely to be
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neglected.
Water supplies that have either inadequate
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pressure or where the supply may be intermittent.
In areas where the water consistently contains a
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high proportion of solids.
In areas where the water supply contains chloride
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levels that exceed 250mg/l.
5.3 Choice of location
The appliance must be vertically wall mounted.
Although location is not critical, the following points
should be considered:
The appliance should be sited to ensure minimum
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dead leg distances, particularly to the point of most
frequent use.
Avoid siting where extreme cold temperatures will
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be experienced. All exposed pipe work should be
insulated.
Access to associated controls and immersion
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heaters must be available for the servicing and
maintenance of the system.
Clearance under the water heater should be at
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least 300 mm to allow removal of the cover and
immersion heater.
Ensure that the wall the appliance is to be mounted
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on is capable of permanently supporting the weight
when full of water (see table 1, page 5 for weights).
5.4 Transport
Prior to installation the appliance should be transported
and stored in an upright position in its original packaging
in a dry area free from excessive damp, humidity or
frost.
Please take care when handling a packaged appliance.
The appliances are heavy and must only be moved
manually using safe working practices. The package
weights are displayed on the carton label. Once the
packaging has been removed decide on a safe lifting
method for the appliance again taking note of the
weights noted in table 1, page 5.
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