Main Multipoint BF Instrukcja obsługi, instalacji i serwisowania - Strona 13
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Fig. 12 - Inlet pressure test point
Fig. 13 - Gas control slide - Pilot ignition position
Fig. 14 - Gas control slide - operating position
Fig. 15 - Gas control slide - shut down position
Fig. 16 - Burner pressure test point
6 720 607 090
Move slide control to the far left
12. Commissioning
Before commissioning the appliance, the gas installation
must be purged and tested for gas soundness in accordance
with BS 6891.
12.1 Ensure that the gas isolation valve in the gas inlet
pipe is turned off.
12.2 Loosen screw A and connect a pressure gauge to
the test point. (fig. 12).
12.3 Turn on the gas isolation valve, replace the Outer
Case.
12.4 Move the gas control slide to the ignition position
(fig. 13).
Depress slide control and hold it in.
Press the igniter
repeatedly until the pilot is alight.
Release the slide control approx 10 seconds after pilot
lights.
Repeat these steps if the pilot does not remain alight.
Note: On initial light up, or after prolonged shut down,
the establishment of the pilot may take several attempts
due to the presence of air in the gas supply pipe.
The pilot flame should envelope approximately 5 mm of
the thermocouple head.
12.5 Once pilot is established, move slide control to burner
operation position
. Fully open any hot water tap. The
main burner should light.
12.6 Check the dynamic inlet gas pressure is 20 mbar.
If the pressure is not correct then check the gas supply
to the appliance.
If the pressure is correct, turn off the hot water tap and
move the slide to the off position. (fig. 15).
Remove the outer Case, turn off the Gas Isolation Valve.
Remove the pressure gauge and tighten screw A. (fig.
12).
12.7 The burner pressure is factory set and should not
require adjustment, confirmation of burner pressure can
be made as below.
Loosen screw D and connect the pressure gauge to the
test point (fig. 16). Replace the Outer Case.
Re-light the appliance as described in paragraph 12.4
and 12.5.
12.8 Operate the appliance for at least 2 minutes then
check that the burner pressure is 14. 1 mbar.
12.9 Turn off the hot water tap. remove the Outer Case.
Close the gas service cock. Remove the pressure gauge
and tighten screw D. Replace the Outer Case.
12.10 On completion of the commissioning and testing of
the system, the installer should:
12.10.1
Give the Instructions to the user for safe
keeping.
12.10.2
Explain and demonstrate the lighting and
shutdown procedures.
12.10.3
Advise the user of the precautions necessary
to prevent damage to the system and to the building
in the event of the system remaining inoperative during
frost conditions.
12.10.4
Recommend that the appliance is serviced
annually for reasons of safety and economy and that
the servicing must be carried out by a competent
person.
.
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