Sime Planet Super 4 F.S., Инструкция по установке и обслуживанию

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4
the painted surface.
– The air inlet/outlet flue duct MUST
NOT be closer than 25 mm (1 in) to
combustible material.
– In certain weather conditions the termi-
nal may emit a plume of steam. This is
normal but positions where this would
cause a nuisance should be avoided.
2.4 VENTILATION REQUIREMENTS
Detailled recommendations for air supply
are given in BS5440:2. The following notes
are for general guidance:
– It is not necessary to have a purpose
provided air vent in the room or internal
space in which the appliance is installed.
2.5 GAS SUPPLY
– The gas supplier should be consulted at
the installation planning stage in order
to establish the availability of an ade-
quate supply of gas.
– An existing service pipe MUST NOT be
used without prior consultation with the
gas supplier.
– A gas meter can only be connected by
the gas supplier or their contractor.
– An existing meter should be of sufficient
size to carry the maximum boiler input
plus the demand of any other installed
appliance. (BS6891:1988). The gas
required for the boiler is specified in the
point 1.3.
– The governor at the meter must give a
constant outlet pressure of 20 mbar (8
inwg) for natural gas when the appliance
is running.
– The gas supply line should be purged.
NOTE: Before purging open all doors and
windows, also extinguish any cigarettes,
pipes, and any other naked lights.
– The complete installation must be tested
for gas soundness.
– It is important to assure an adequate gas
supply to the appliance. No more than 3
m of 15 mm pipe should be used. Where
the supply exceeds 3 m the pipe should
be suitably sized only reducing to 15 mm
for the last 3 m prior to the appliance.
2.6 ELECTRICITY SUPPLY
The appliance MUST be earthed. A mains
supply of 230 V - 50 Hz single phase is
required. All external controls MUST be
LOW voltage.
Wiring should be in 3 core PVC insulated
cable NOT LESS than 0.75 mm 2 (24 x 0.2
mm) to BS6500, Table 16. Wiring external to
the boiler MUST be in accordance with cur-
rent l.E.E. Wiring Regulations (BS 7671) and
local regulations. The supply connection to the
flying lead provided MUST be made to a fused
double pole switch, having a 3 mm (1/8 in)
contact separation in both poles, serving only
the boiler and system controls.
The fuse rating should be as per the origi-
nal instructions. This connection should be
readily accessible and be made adjacent to
the boiler (except in the case of bathroom
installations for domestic boilers where
the point of connection to the mains MUST
be outside of the bathroom).
2.7 WATER SYSTEMS - GENERAL
– This appliance is designed for connection
to sealed central heating water systems.
– Check that the mains water pressure is
sufficient to produce the required
D.H.W. flow rate, but does not exceed
the maximum D.H.W. pressure (point
1.3). If necessary, a pressure reducing
valve must be fitted to the mains supply
before the D.H.W. inlet connection.
2.8 REQUIREMENTS FOR SEALED
WATER SYSTEMS
The heating system design should be based
on the following information:
a) The available pump head is given in fig. 5.
b) The appliance is equipped with an inter-
nal by-pass that operates with system
heads (H) greater than 3,5 m. If ther-
mos t atic radiat or val ves ar e t o be
installed, at least one radiator should be
without a thermostatic valve (usually
the bathroom radiator).
d) A sealed system must only be filled by a
competent person. The system design
should incorporate the connections
appropriate to one of these methods.
e) The following paragraphs outline the
specifications of the items fitted to the
boiler.
2.8.1 Pump
The available head shown in fig. 5 is that
in excess of the appliance hydraulic resis-
tance, i.e. that available for the system at
any given heating load up to the maxi-
mum output in C.H. mode. Never reduce
the pump speed below maximum as this
will reduce D.H.W. output. The pump
speed is indicated on the side of the
pump speed selector switch (if fitted).
2.8.2 System volume
(total water content)
The following Table gives the maximum
system volume that the integral expan-
sion vessel can sustain under different
charge pressure conditions. If the system
volume exceeds that shown, an additional
expansion vessel must be fitted and con-
nected to the heating system primary
return pipe as close as possible to the
appliance.
If an extra vessel is required, ensure that
the total capacity of both vessels is ade-
quate. Further details are available in the
current issues of BS5449 and BS6798.
0
200 1600 1400 1200 1000 800 600 400
FLOW RATE (l/h)
RESUDIAL HAED (mbar)
400
100
200
300
PL
ANET SUPER 4 F
.S.
Fig. 5
Vessel charge and initial system pressure
Total water content of system using 8 l (1.76 gal
capacity expansion vessel supplied with appliance
For systems having a larger capacity multiply the
total system capacity in litres (gal) by the factor to
obtain the total minimum expansion vessel capacity
required litres (gal)
bar
psi
l
gal
0.5
7.3
87
19.1
.0833
1.5
21.8
44
9.7
.156
1.0
14.5
64
14.0
.109
TABLE 2