12
Final start-up procedures
Logano G
C
124 II – 6 720 804 440 (2012/11)
17
Fig. 24 Gas valve
[1]
ON/OFF knob (shown in ON position)
[2]
Safety screw on gas supply pressure measurement port
[3]
Safety screw on orifice pressure adjustment port
[4]
Safety screw on orifice pressure measurement port
[5]
Safety screw on ignition gas adjustment screw
▶ Record the measured value in the start-up protocol. Install the safety
screw back into the gas valve.
▶ Observe main burner flame through the sight glass (
figure 22,
page 16) in the burner plate. The flame must show a steady and stable
body and generally be of bluish color. If the main burner flame meets
the requirements, proceed to the next step. If the main burner flame
is weak, yellow, or goes out, turn the ON/OFF knob (
figure 26) on
the gas valve clockwise to OFF.
C
lose the gas shut-off and disconnect
the heating system from the main power source and contact the
customer service technician or the gas company.
Fig. 25 Main burner
[1]
Main burner flame
Checking flame rod
▶ Test the flame rod by closing the gas shut-off. The main burner flame
(
figure 25) and the ignition flame are extinguished. After no more
than six (6) seconds the main gas solenoid valve on the gas valve must
close with an audible noise. If the gas valve does not operate
correctly, turn ON/OFF knob on the gas valve clockwise to the OFF
position immediately.
C
lose the main gas shut-off and disconnect the
heating system from the main power source and contact the customer
service technician or the gas company.
Fig. 26 Gas valve
[1]
ON/OFF knob (shown in ON position)
▶ After 90 seconds the igniter stops generating sparks for five (5)
seconds.
▶ Disconnect the heating system from the main power source. Open
main gas shut-off. A normal operating cycle must follow.
▶ If the main burner flame lights and burns to spec, proceed to the next
step. If not, turn knob on gas valve clockwise to OFF position
immediately.
C
lose main gas shut-off. Disconnect heating system
from the power source and inform the customer service technician or
gas company.
GC124
Natural Gas
[inch W.C.]
LP
[inch W.C.]
18
3.5
8.8
25
3.5
8.6
32
3.5
8.7
Table 10 Orifice pressure at 60°F / 30" Hg. These values are only valid in
the U.S.A. and only for elevations from
0-8500ft.
1
2
3
5
4
6 720 804 440-24.1T
1
6 720 804 440-25.1T
1
6 720 804 440-26.1T
Содержание Logano GC 124 II
Страница 32: ......
