Ravenheat CSI85A(T), Инструкции по установке и обслуживанию

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12
Terminal position for fan assisted boiler
(minimum distance) mm
A - Directly below an open window or other 300
opening (e.g. air brick)
B - Below gutters, soil pipes or drain pipes 25
C - Below eaves 25
D - Below balconies or car port roof 25
E - From vertical drain pipes and soil pipes 25
F - From internal or external corners 25
G - Above ground or below balcony level 300
H - From a surface facing a terminal 600
I - From a terminal facing a terminal 1200
J - From an opening in the car port
(e.g. door window) into dwelling. 1200
K - Vertically from a terminal on the same wall 1500
L - Horizontally from a terminal on the same wall 300
NOTE: The flue must be terminated in a place not
likely to cause a nuisance.
4.6.2 A concentric vertical flue kit is available for
flueing applications up to a maximum height of
4 metres.
For further details see vertical flue installation
instructions.
4.7 AIR SUPPLY
4.7.1 The following notes are intended for general
guidance.
The room sealed fan flued boiler does not
require a permanent air vent for combustion
air supply.
Where installed in a cupboard or compartment
ventilation is not required.
4.8 WATER CIRCULATION (central heating)
4.8.1 Detailed recommendations are given in
BS 6798:1987/5449:1990 (for smallbore
and microbore central heating systems).
The following notes are given for general
guidance.
4.8.2 Pipework
Copper tubing to BS 2871 1.1.1971 is
recommended for water pipes. Jointing should
be either with capillary soldered or with
compression fittings.
Where possible pipes should have a gradient
to ensure air is carried naturally to air release
points and water flows naturally to drain taps.
It should be ensured as far as possible that
the appliance heat exchanger is not a natural
collecting point for air except where providing
useful heat, pipes should be insulated to
prevent heat loss and to avoid freezing.
Particular attention should be paid to pipes
passing through ventilated spaces in roofs and
under floors.
4.8.3 The water through the appliance heat
exchanger circuit must exceed the min. 2.38
gals/min. (650 It/h) when the burner is firing. It
is important to ensure that this rate is achieved
when sections of the system are shut off either
manually or by automatic controls.
Therefore a by-pass must be fitted to the
system (15 mm min.) (Fig. 6A).
If the volume of circulating water is too low, the
boiler water temperature will rise too rapidly.
This could cause noise in the system or even
cause the safety thermostat to trip.