Grant 140/160, Инструкция для пользователя, по установке и обслуживанию

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16
Multi Pass Oil Boilers
Air supply 3.5
Fig. 9 - Air supply for room sealed balanced flue boilers
3 - GENERAL BOILER INFORMATION
Electricity supply 3.4
1 A 230/240 V ~ 50 Hz mains supply is required.
The boiler must be earthed.
2 The supply must be fused at 5 Amp and there must
only be one common isolator for the boiler and
control system, providing complete electrical
isolation.
3 A fused double pole switch or a fused three pin
plug and shuttered outlet socket should be used for
the connection.
4 The power supply cable should be at least 0.75 mm²
PVC as specified in BS 6500, Table 16.
5 All the wiring external to the boiler must be in
accordance with the current I.E.E. Wiring
Regulations.
6 Any room thermostat or frost thermostat used must
be suitable for use on mains voltage.
7 In the event of an electrical fault after installation
of the boiler, the following electrical system checks
must be carried out:- Short circuit, Polarity, Earth
continuity and Resistance to earth.
See Figs. 9 and 10
A sufficient permanent air supply to the boiler should
be provided:
a For proper combustion of fuel and effective
discharge of combustion products to the open air.
b For the ventilation of any confined space in
which the boiler is installed to prevent
overheating of the boiler any equipment in and
near the boiler.
c For the satisfactory operation of any draught
stabiliser which may be fitted.
It should be both the designer's and installer's concern
that the air required for these functions be introduced
so as to cause as little discomfort as possible to the
building occupants and thus to offer them the least
temptation to obstruct the ventilators.
Further details may be obtained from BS 5410:1:1997.
Notes:
For a boiler fitted in a compartment, which is
ventilated as shown, no additional allowance is
necessary.
Open flue - Extract fans, where needed, should
be in accordance with Section 4.4.7 in BS 5410
Part 1 1997.