Grant Vortex VTXBH1521, Инструкции по установке и обслуживанию

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Section 4: Boiler installation information page 15
4.5 pipEWORK matERiaLS
The Grant Vortex boiler is compatible with both copper and plastic
pipe. Where plastic pipe is used it must be of the oxygen barrier
type and be the correct class (to BS 7291-1) for the application
concerned.
On either sealed or open-vented systems; where plastic pipe is
used a minimum of ONE metre of copper pipe (or as per pipe
manufacturers instructions) MUST be connected between both
the boiler flow and return connections and the plastic pipe.
! NOtE !
Do not connect plastic pipe directly to the boiler.
Grant UK does not accept any responsibility for any damage,
however caused, to plastic piping or fittings.
SEaLED SYStEmS
If plastic pipe is to be used, the installer must check with the
plastic pipe manufacturer that the pipe to be used is suitable for
the temperature and pressures concerned.
Plastic pipe must be Class S to BS 7291-1.
! WaRNiNG !
When plastic pipe is used, the system mUSt incorporate
a low level pressure switch to shut off power to the boiler
if the system pressure drops below 0.2 bar. a suitable low
pressure switch kit is available to purchase from Grant UK
(product code: mpCBS62).
UNDERFLOOR pipEWORK
Plastic pipe may be used on underfloor floor systems where the
plastic pipe is fitted after the thermostatic mixing valve. Copper
tube must be used for at least the first metre of flow and return
primary pipework between the boiler and the underfloor mixing/
blending valves.
4.6 CONNECtiONS
4.6.1 FLOW aND REtURN CONNECtiONS
Refer to Section 5.
4.6.2 CONDENSatE CONNECtiON
The condensate trap is supplied loose in the burner box and
needs to be fitted as shown in Figure 6-2.
Refer to Section 6 for details of the condensate disposal pipework.
4.6.3 DRaiN COCK
A drain cock is supplied in the accessories pack and should be
fitted at the bottom on the front of the boiler to allow the boiler to
be drained.
To enable draining of the system, a suitable drain cock must be
fitted at the lowest point of the heating system.
4.7 pREpaRatiON FOR
iNStaLLatiON
1. Grant Vortex Boiler House models are supplied in two
separate cartons; one containing the boiler and the other
containing the burner and condensate drain trap. The dual
thermostat (15/21, 21/26, 26/35, 36/46 models) are also
included with the burner.
The dual thermostat is factory fitted on the 46/58 and 58/70
models.
The flow pipe and push fit connector are supplied with the
36/46 model (under the removable cover).
2. Carefully remove the packaging from the boiler and unpack
the carton containing the remaining items.
4.8 iNStaLLiNG tHE BOiLER
1. Having decided upon the position of the boiler and type of
flue, prepare the wall as described in Section 9. Ensure
that the flue terminal position complies with the necessary
clearances.
2. Make the water connections as described in Section 5. If
access will be restricted, make any connections to the boiler
before placing it in its final position. Refer to Section 7 if the
boiler is to be used on a sealed system.
! NOtE !
If using a balanced flue system - install the balanced flue
system before connecting the heating system pipework to
the boiler. Once the flue system is fitted then complete the
water connections and fill the heating system.
3. Ensure the requirements are met for the disposal of
condensate as described in Section 6.
4. Connect the power supply as described in Section 8.
5.
Connect the flue and ensure there is an adequate air supply
as described in Section 9.
4.9 BEFORE YOU COmmiSSiON
To avoid the danger of dirt and foreign matter entering the boiler
the complete heating system should be thoroughly flushed
out – both before the boiler is connected and then again after
the system has been heated and is still hot. This is especially
important where the boiler is to be installed on an older system.
For optimum performance after installation, the boiler and the
associated heating system must be flushed in accordance with
the guidelines given in BS 7593 (Treatment of water in domestic
hot water central heating systems). This must involve the use
of a proprietary cleaner, such as Sentinel X300 (new systems),
Sentinel X400 (existing systems), or Fernox Restorer.
After cleaning, it is vitally important that all traces of the cleaner
are thoroughly flushed from the system.
For long term protection against corrosion and scale, after
cleaning/flushing a suitable inhibitor should be added to the
system water, such as Sentinel X100 or Fernox MB-1, in
accordance with the manufacturers’ instructions.
Failure to follow the above will invalidate the guarantee.
If the boiler is installed in a garage or out house, in order to
provide further protection should there be a power failure in cold
weather, a combined anti-freeze and corrosion inhibitor can
be used such as Sentinel X500 or Fernox Alphi-11. Follow the
manufacturers’ instructions supplied to achieve the level of anti-
freeze protection required.
For details of the Sentinel Products visit www.sentinel-solutions.
net and for Fernox products visit www.fernox.com.
Grant UK strongly recommends that a Grant Mag One in-line
magnetic filter/s (or equivalent*) is fitted in the heating system
pipework. This should be installed and regularly serviced in
accordance with the filter manufacturer’s instructions.
* As measured by gauss. The MagOne magnetic filter has a gauss
value of 12000.
4.10 COmpLEtiON
Following installation of the boiler, instruct the user in the
operation of the boiler, the boiler controls, the heating controls and
the safety devices.
Please ensure that the OFTEC CD/10 installation completion
report (provided with the boiler) is completed in full, leaving the
top copy with the user and retain the carbon copy for your own
records.
Ensure that the User Handbook (supplied with the boiler) is
handed over to the user.