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

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Page 19
GULFSTREAM
A-CL
ASS
4.1.3 Flue System
Only flue system supplied by Gledhill Water Storage Ltd for this appliance should
be used. Unless already fitted, install the flue system as shown in the installation
instructions supplied with the flue kit.
4.1.4 Gas Supply
(a) Ensure that the gas supply is isolated.
(b) The gas supply to the appliance should be in 22mm copper or equivalent
steel pipe up to within 0.5 metre of the appliance gas cock.
(c) The gas connection is made at the top of the appliance and the union gas cock
is supplied as a loose item in the fitting kit. The male liner with the union nut
should be fitted to the RC ½” gas inlet using an approved jointing compound.
The gas cock can then be fitted and gas supply connected.
(d) DO NOT turn on the gas supply or the appliance at this stage.
4.1.5 Central Heating and Domestic Hot Water Connection
(a) The central heating flow and return connections are clearly labelled. Using 22mm
copper pipework connect the appliance to the central heating system. Heating
system isolating valves should be fitted as close as possible to the appliance.
(b) The mains cold water supply and the domestic hot water outlet connections
are clearly labelled. Using 22mm copper pipework connect the appliance to the
mains supply and hot water supply network. Cold water mains supply isolating
valve should be fitted as close as possible to the appliance.
4.1.6 Condensate Drain Pipe
(a) Before fitting the condensate drain pipe, remove and fill the condensate trap
with water and refit to the appliance..
(b) The condensate will be slightly acidic and the condensate pipe should be run in
a high temperature plastic drain pipe material (e.g. PP, UPVC etc). Copper tube
MUST NOT be used and ‘Push Fit’ overflow pipe MUST NOT be used.
(c) Internal pipework should have a bore diameter no smaller than 20mm.
(d) The external pipework should be kept to minimum, and have a bore diameter
no smaller than 32mm.
(e) The pipe should not have any upward pipe runs and must fall at least 2.5 o (1:20)
throughout its length towards the discharge point.
(f) It is strongly recommended that the condensate pipe should be run internally
to the house soil or vent stack or to a waste pipe.
(g) Alternatively the condensate may be discharged into a rainwater system,
external gully or a purpose-built soakaway. Any local building control authority
requirements must be complied with.
(h) It is recommended that the pipe should not be installed externally but if it is it
should be insulated and terminated below the grating level of the gully or at
least 50mm above the soak away to minimise the effects of freezing.
4.1.7 Feed and Expansion Cistern
(Open vented ‘-OV’ models only)
(a) The feed and expansion cistern should be
installed on a level and flat base to ensure
that it is fully supported.
(b) The feed and expansion cistern should not
rest on top of the appliance case. Adequate
access must be provided for maintenance of
the F & E cistern (See figure 2.1).
(c) Connect the combined cold feed and open
vent pipe in 22mm copper from the appliance
to the cistern as shown schematically in
figure 2.1.
(d) Run the overflow/warning pipe in at least
20mm internal diameter pipe in material
complying with BS 5449 (such as copper). It
should have a continuous fall and discharge
in a conspicuous external position with no
other pipe connected to it.
4.1.8 Tundish discharge pipe
(Sealed system ‘-SS’ model only)
(a) The pressure relief discharge is connected to
the tundish discharge from the automatic CA
filling device (figure 4.3).
(b) The common discharge pipe should be run in
copper with an internal diameter of at least
20mm and have a continuous fall of 0.25
o (i.e.
minimum 1:200).
(c) The discharge must terminate in a way that it
permits safe discharge of hot water such that
no hazard to persons or damage to property
or electrical components is caused.
INSTALLATION AND WIRING