68
IX. System Start-up
(continued)
Table 25B: Approximate Throttle Screw
Adjustment Values from Fully Closed
Position, LP Gas
Boiler
Model
Throttle Position (Number of Counter-
clockwise Turns from Fully Closed
Position
PHNTM210
5 & 1/2
PHNTM285
4 & 1/2
WARNING
Asphyxiation Hazard. If the throttle is very far out of adjustment on the “rich” (counter-clockwise) side,
the boiler burner may be running at 0% excess air or even with air deficiency. Operating the boiler in this
condition may cause property damage, personal injury or loss of life.
Under these conditions most combustion analyzers used in the field will show 0% O
2
and a very high (well
over 1000 ppm) CO. Combustion readings will also appear to be unresponsive to throttle adjustment.
If the boiler appears to operate under these conditions, shut down the boiler and follow instructions in
Paragraph S “Correcting Throttle Screws Mis-Adjustment. Then, use a combustion analyzer to verify and
adjust O
2
(or CO
2
) and CO to values shown in Table 22 for natural gas or Table 23 for LP gas.
Table 25A: Approximate Throttle Screw
Adjustment Values from Fully Closed
Position, Natural Gas
Boiler
Model
Throttle Position
(Number of Counter-clockwise Turns
from Fully Closed Position
PHNTM210
9 &1/2
PHNTM285
9
Summary of Contents for Phantom-X PHNTM210
Page 7: ...7 Figure 1B Model PHNTM285 I Product Description Specifications and Dimensional Data continued...
Page 52: ...52 VIII Electrical continued...
Page 53: ...53 VIII Electrical continued Figure 26 Wiring Connections Diagram...
Page 54: ...54 VIII Electrical continued Figure 27 Ladder Diagram...
Page 118: ...118...
Page 119: ...119...
