Navien NP-180 Service Manual page 133

Standard Setting Chart of the Gas-Air Pressure
Model
NR/NP-180(A)
NR/NP-180(A)
NR/NP-210(A)
NR/NP-210(A)
NR/NP-240(A)
NR/NP-240(A)
Fan
Air Pressure
Gas Pressure
Manometer
©Navien America Inc. 2010
Type
3 Stage Min. Burn
Natural Gas 0.87" ± 0.06" W.C
Propane Gas 1.57" ± 0.06" W.C
Natural Gas 0.67" ± 0.06" W.C
Propane Gas 1.30" ± 0.08" W.C
Natural Gas 0.67" ± 0.06" W.C
Propane Gas 1.30" ± 0.08" W.C
APS
GPS
gas valve
131
NR/NP series service Manual
Gas-Air Pressure Difference
3 Stage Max. Burn
2.68" ± 0.08" W.C
4.60" ± 0.08" W.C
1.73" ± 0.08" W.C
3.19" ± 0.08" W.C
2.20" ± 0.08" W.C
3.86" ± 0.08" W.C
gas valve
Proportional valve
Minimum Modulating
PCB Board
Maximum Modulating
Version 2.0