Worcester GB162-100, Инструкция по установке и обслуживанию

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COMMISSIONING
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B
Open the screw plug on the testing nipple for the gas
hook-up pressure and for purging by 2 turns [1].
B
Reset the digital pressure gauge to "0".
B
Connect the pressure gauge connection tube to the
positive port of the testing nipple [2].
Fig. 85 Measuring the gas supply pressure
B
Slowly open the gas valve by pushing on the gas valve
and turning it ¼ rotation in an anticlockwise direction
(
Æ
fig. 79, page 49). The gas valve is open when it is
in the vertical position.
B
Switch on the heating system by pressing the mains
switch [1] of the BC10 basic controller.
B
Press and hold the "Chimney sweep" button [3]
(approx. 2 seconds), until the dot in the right-hand
bottom corner of the display [9] appears. See also
table 10, "Flue gas test", page 42.
B
After the "Burner" LED [6] has lit up wait for one
minute until the boiler is burning at full load.
B
Measure the gas supply pressure and enter it in the
commissioning log book, page 72.
The gas supply pressure must be:
•
for natural gas H min. 17 mbar, max. 25 mbar, nominal
supply pressure 20 mbar.
•
for LPG min. 30 mbar, max. 50 mbar, nominal supply
pressure 37 mbar.
B
Press the "Service" button [4] repeatedly until the
temperature reading is shown in the display.
B
Press the "Chimney sweep" button [3] to clear the
reading. Also see table 10, "Flue gas test", page 50.
Fig. 86 BC10 basic controller
B
Close the gas valve (
Æ
fig. 81, page 50).
B
Remove the gauge-connection tube and tighten the
screw plug on the testing nipple again.
B
Open the gas valve again by pushing on the gas valve
and turning it ¼ rotation in an anticlockwise direction
(
Æ
fig. 79, page 49).
10.2.7 CHECKING AND ADJUSTING THE GAS/AIR-
RATIO
B
Open at least 2 thermostatic radiator valves. Do not
switch on the boiler.
B
Push on the control panel to open it (
Æ
fig. 68,
page 40).
Throughout the measuring operation, keep
the digital pressure gauge in the same
position (horizontal or vertical) in which it
was reset to "0".
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DANGER: Danger of fatal accident from
explosive fumes.
B
Check the testing nipples used for leaks.
B
Only use approved leak detection spray
to locate leaks.
NOTE:
B
Check the gas supply pipe or contact the
relevant gas utility company if the
required supply pressure is not available.
B
If the supply pressure is too high, a gas
pressure regulator must be integrated
upstream of the gas fitting. Contact the
gas utility company.
WARNING:
Damage to the boiler by incorrect
adjustment of the gas/air-ratio.
B
Adjust gas/air-ratio ONLY with part load!
B
Adjust gas/air-ratio ONLY based on the
gas/air pressure differential and never
based on measured flue gas values such
as CO/CO
2
/NO
x
!
888
1
10 9 8
7
6
5 4 3 2
1
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