Potterton PRIMA 30C, Руководство пользователя

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19
COMMISSIONING - Page 19
Open Vented Systems
Remove the pump and flush out the system thoroughly with
cold water. Refit the pump, fill and vent the system and
examine for leaks.
Sealed Systems
The system can be filled using a sealed system filler pump
with a break tank or by any other method approved by the
local Water Authority. Refer to FIG 6 and BS6798 1987.
Remove pump and flush out the system thoroughly with cold
water. Re-fit the pump. Fill and vent the system until the
pressure gauge registers 1.5 bar (22.5lbf/in2), examine for
leaks. Raise the pressure until the safety valve lifts. This
should occur within ± 0.3 bar of the pre-set lift pressure of 3
bar. Release water to attain the correct cold fill pressure.
All Systems
The whole of the gas installation including the meter should
be inspected and tested for soundness and purged in
accordance with the recommendations of BS6891.
Fit the case door into position by lifting it onto the top hinge
brackets and secure it with the lower two fixing screws.
First Lighting
A. Ensure that the pump and radiator isolating valves are
open.
B. Turn the boiler thermostat to the ‘0’ 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 electrical fault after installation of the
appliance, preliminary electrical system checks must be
carried out 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 clockwise
ensuring the symbol
•
lines up with the datum mark on
the gas valve body. See Fig 19. This ensures that the
valve is 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 body. Press and hold in the control knob and
press the spark generator button until a click is heard.
Release the spark generator button and repeat
operation until the pilot ignites. See Figs 2&19. Hold in
the control knob for a further 15 seconds. On release the
pilot should remain alight. Partly depress and turn the
control knob anti-clockwise until the symbol lines up with
the datum mark on the gas valve body.
NOTE:
On first lighting, establishment of the pilot flame may be
slightly delayed due to the presence of air in the pipework. If
the pilot fails to light or goes out at any time, immediately
turn the control knob clockwise as far as possible, then
release it and wait three minutes before repeating the
lighting procedure. The control knob should not be touched
during this period.
H. Turn the boiler thermostat on and to a high setting and
the main burner will light.
I. Set the boiler thermostat and the room and/or cylinder
thermostat(s) and time 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 BS5440 Part 1. Check soundness of all
appliance gas carrying components and joints using leak
detection fluid and a mirror where necessary.
K. Switch off the boiler, using the thermostat knob.
NOTE: If the main burner fails to light turn the boiler
thermostat to the off position and check that the spillage
detector thermostat reset button (see Fig 18a) is pressed in,
then repeat operation. If you have to keep resetting the
thermostat, or the main burner fails to light consult the fault
finding chart on page 26, Fig 23.
Figure 18a