Gulfstream GS A-Class 12/OV, Инструкции по проектированию, установке и обслуживанию

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Page 11
GULFSTREAM
A-CL
ASS
3.1 VENTILATION
(a) The GulfStream
A-CLASS
is a room sealed
appliance and therefore it does not take air
for combustion from the dwelling. Therefore
when this room sealed appliance is installed
in a room or habitable internal space, there
are no specific ventilation requirements.
Table 3.1 Minimum effective area of
compartment air ventilation
Position of
opening
Ventilated
to
Area of each
vent (cm2)
High and low
level
Room 80
High and low
level
Outside 40
(b) When the appliance is installed in an airing
cupboard of minimum dimensions specified
in section 1.7 (table 2.1 and figure 2.1) no
vents are required in the airing cupboard.
The normal infiltration rate through the
cupboard is sufficient to provide cooling air
for the appliance.
(c) When the appliance is installed in a purpose
built boiler compartment it is essential that
permanent high and low level vents are
provided for the circulation of cooling air.
Purpose made vents must have a non-
adjustable free area not less than the
minimum specified in table 3.1.
3.2 HOT AND COLD WATER SYSTEM
(a) All recommendations with regard to pipe
work systems in this manual are generally
based on the use of BS/EN Standard copper
pipework and fittings.
(b) However the plastic pipework system can be
used in place of copper internally as long as
the chosen system is recommended by the
manufacturer for use in cold and hot water
systems and is fully designed and installed
in accordance with their recommendations.
(c) This is particularly important in relation to
use of push fit connections when using the
optional flexible hose kits (See Installation
and Wiring section of this document).
(d) It is also important that if an alternative
pipework material or system is chosen,
then, the manufacturer confirms that the
design criterion for the new system is at
least equivalent to the use of BS/EN Standard
copper pipework and fittings.
SYSTEM DESIGN
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Top connections
Lower connections
Heating
flow
Store
drain CW
Mains
Inlet
Hot
Water
outlet
Heating
return
60
145
210
305
335
385
490
60
80
CA
Valve
discharge
PRV
discharge
45
100
150
595
All dimensions in mm
Air
Vent Gas
Open Vent
OV models only
120
70
230
140
115
Air Inlet
Flue Gas
Figure 2.5 Appliance connection details