90
4. Before attempting to start the boiler, make the
number of turns to the throttle screw called for in
Table 24.
5. Attempt to start the boiler using the lighting
instructions located inside the lower front cover of
the boiler. If the boiler does not light on the first
try for ignition, allow to boiler to make at least
four more attempts to light. If boiler still does not
light, turn the throttle counter clockwise in 1/4 turn
increments, allowing the boiler to make at least
three tries for ignition at each setting, until the boiler
lights.
6. After the burner lights, force the burner to high
fire. Allow the boiler to operate for approximately 5
minutes before taking combustion readings.
Figure 5: Dungs gas Valve Detail
Table 2: number of Clockwise Throttle Screw
Turns for LP Conversion
Boiler Model
Gas Valve
Throttle Screw Turns at
Altitude Range
0 - 7000 Ft.
ALP080
Dungs
GB-055
(½” NPT)
2¾
ALP105
4
ALP150
3¼
ALP210
4
ALP285
Dungs
GB-057
(¾” NPT)
4½
ALP399
Dungs
GB-057 HO
(¾” NPT)
1¾
ALP500
1
WaRning
The throttle adjustments shown in Table 24 are approximate. The final throttle setting must be found using
a combustion analyzer. Leaving the boiler in operation with a CO level in excess of the value shown in
Table 25 could result in injury or death from carbon monoxide poisoning.
Xi. System Start-up (continued)
Summary of Contents for Alpine ALP080
Page 40: ...40 Figure 29 Condensate Trap and Drain Line V Condensate Disposal continued ...
Page 56: ...56 VIII Electrical continued ...
Page 57: ...57 VIII Electrical continued Figure 35 Wiring Connections Diagram ...
Page 58: ...58 Figure 36 Ladder Diagram VIII Electrical continued ...
Page 64: ...64 Figure 39 Modular Boiler Direct Vent Termination X Modular Installation continued ...
Page 65: ...65 Figure 40 Modular Boiler Concentric Vent Termination X Modular Installation continued ...