O Potterson CF 20/35, Инструкция по установке и обслуживанию

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B Turn the boiler thermostat to the
‘O’ position.
C Turn on the main gas supply and the gas service cock on boiler.
D
Ensure that the time control, if fitted is in an
‘ON’ condition, and that the room
and/or cylinder thermostats, where fitted are set to high temperatures.
E Switch on the external electricity Supply to the boiler. In the event of an elec
trical fault after installation of the appliance, preliminary electrical system chec
ks must be carriedout as described in the BG multimeter instruction book. The
checks to be carried out are: A - Earth Continuity, B - Short Circuit, C -
Polarity, D - Resistance to Earth.
F Partly depress and turn the gas control knob clock-
wise ensuring the symbol lines up with the datum mark on the gas valve bod
y. See
FIG. 16 . This ensures that the valveis in the
‘OFF’ condition.
G Partly depress and turn the control knob anti-
clockwise until the symbol lines up with the datum mark on the gas valve bo
dy. Press and hold in the control knob and pressthe spark generator button un
til a click is heard. Release the spark generator button and repeat operation u
ntil the pilot ignites. See FIGS.
2 and 16
Hold in the control knob for a further 15 seconds. On release the pilot should r
emain alight.
Partly depress and turn the control knob anti-
clockwise until the symbol lines up with the datum mark on the gas valve bo
dy.
NOTE:
On first lighting, establishment of the pilot flame may be slightly delayed due t
o the presence of air in the pipework. If the pilot fails to light or goes out at any
time, immediatelyturn the control knob clockwise as far as possible, then rele
ase it and wait three minutes before repeating the lighting procedure. The cont
rol knob should not be touchedduring this period.
H Turn the boiler thermostat on and to a high setting and the main burner will l
ight.
I Set the boiler thermostat and the room and/or cylinder thermostat(s) and tim
e control, where fitted, to their required operating conditions.
J After the boiler has operated for five minutes check that there is no spillage
or leakage of combustion products in accordance with BS 5440 Part 1.