Manifold Gas Pressure Adjustment; Manifold Gas Pressure Maximum And Minimum Values - Noritz NR50-OD Service Manual
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Also See for NR50-OD:
- Owner's manual (32 pages) ,
- Installation manual (32 pages) ,
- Instructional manual (7 pages)
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<NR50-OD / NR66 (-SV,-OD) / N-0531S (-OD), NR71 (-SV,-OD) / N-0631S (-OD)>
Manifold Gas Pressure Adjustment
Note 1)
Use the following procedure to adjust the manifold gas pressure only if it can be done with a high flow rate
through the unit.
Note 2)
When the manifold gas pressure is adjusted, the front cover will be off. Adjust the manifold gas pressure to
the value of "Cover Off" in the table (because it is not possible to adjust the manifold gas pressure with the
front cover on).
(1) With a manometer or pressure gauge connected to the manifold pressure
tap, press and hold the maximum manifold gas pressure set button. Use the manifold
gas pressure increase and decrease buttons to adjust to the correct pressure.
(2) Press and hold the minimum manifold gas pressure set button.
Use the manifold gas pressure increase and decrease buttons
to adjust to the correct pressure.
(3) Repeat steps (1) and (2) until both are at the correct pressure.
Manifold Gas Pressure Maximum and Minimum Values
Model
Gas Type
NG
N-0631S
LPG
NG
N-0631S-OD
LPG
NG
N-0531S
LPG
NG
N-0531S-OD
LPG
NG
NR71-SV
LPG
NG
NR71-OD
LPG
NG
NR66-SV
LPG
NG
NR66-OD
LPG
NG
NR50-OD
LPG
Please check the latest burner specification table.
Supply Pressure
Manifold Pressure (inch H
(i nch H
0)
Max. Value
2
7.9
2.25
11.0
2.65
7.9
2.25
11.0
2.50
7.9
2.20
11.0
2.75
7.9
2.20
11.0
2.80
7.9
2.25
11.0
2.65
7.9
2.25
11.0
2.50
7.9
2.20
11.0
2.75
7.9
2.20
11.0
2.80
7.9
2.63
11.0
3.05
83
Manifold Gas Pressure
Increase Button
Manifold Gas Pressure
Decrease Button
Minimum Manifold Gas
Pressure Set Button
Maximum Manifold Gas
Pressure Set Button
0) Cover on
Manifold Pressure (inch H
2
Min. Value
Max. Value
0.55
2.89
0.55
2.85
0.55
3.05
0.50
3.46
0.60
2.73
0.70
3.09
0.60
2.69
0.70
3.09
0.55
2.89
0.55
3.09
0.55
3.05
0.50
3.61
0.60
2.77
0.70
3.46
0.60
2.77
0.70
3.46
0.96
2.81
0.92
3.26
Circuit Board
0) Cover o
2
Min. Value
0.72
0.80
0.72
0.84
0.88
1.00
0.88
1.00
0.72
0.88
0.72
0.84
0.88
1.09
0.84
1.09
1.04
1.00
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