Chapter 6 — Adjustment Procedures
6-14 Part No. 750-184
Table 6-1 Gas pressure requirements, CB-LE 125-200 HP*
CBLE 20 PPM CBLE 30 PPM CBLE 60 PPM
Boiler HP
Gas Train
Size, in
Pressure
Range PSI
Gas Train
Size, in
Pressure
Range PSI
Gas Train
Size, in
Pressure
Range PSI
125 1.5 0.8 - 3.0 1.5 0.7 - 3.0 1.5 0.7 - 3.0
150 1.5 1.0 -3.0 1.5 0.9 - 3.0 1.5 0.9 - 3.0
200 NA NA
1.5 1.5 - 4.0 1.5 1.5 - 4.0
2** 1.0 - 1.5 2** 1.0 - 1.5
*Table is based on Siemens gas train, which includes a regulating actuator.
**Oversize gas train
Table 6-2 Gas pressure requirements, NTI gas trains, CB-LE 125-200 HP
CBLE 15 PPM CBLE 9 PPM
Boiler HP
Gas Train
Size, in
Pressure Range
PSI
Gas Train
Size, in
Pressure Range
PSI
125 1.5 3.3 - 6.0 1.5 3.3 - 6.0
150 1.5 3.9 - 6.0 1.5 4.1 - 6.0
200 1.5 4.5 - 7.0 1.5 4.5 - 7.0
Table 6-3 Gas pressure requirements, standard and oversize gas
trains, CB Ohio Special 100-225 HP
Boiler HP Gas Train Size (In.) Min. Pressure Max. Pressure PSI
100
1.5 14” WC 2
29” WC1
125
1.5 19” WC 2
213” WC1
150
1.5 25” WC 3
217” WC2
175
1.5 35” WC 3
221” WC2
200
1.5 45” WC 3
230” WC2
2.5 24” WC 1.5
225
1.5 56” WC 3
2 37” WC 2.5
2.5 31” WC 2
Table is based on Siemens gas train, which includes a regulating
STANDARD
actuator. OVERSIZE
UNDERSIZE
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