96
Table 4-8
Natural Gas Combustion Curve
(Ratio of Oxygen to Carbon Dioxide in percent)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
0 1 2 3 4 5
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Percent Oxygen
Percent Carbon Dioxide
Curve Fuel
A = 1,000 BTU per cu. ft.
of Natural Gas.
A
Figure 4-8
Gas Valve Adjustment Screw Locations
Table 4-7
Recommended Manifold Pressures and CO
2
Levels
during Furnace Operation (See Notes)
Furnace
MBH
Firing
Manifold
Stage
Rate
%CO2
Pressure
High-Fire
235
100%
8.5-9.5
3.0-3.5
Low-Fire
117
50%
6.0-7.0
0.9
High-Fire
350
100%
8.5-9.5
3.0-3.5
Low-Fire
175
50%
6.0-7.0
0.9
High-Fire
500
100%
8.5-9.5
3.0-3.5
Low-Fire
250
50%
6.0-7.0
1.25
High-Fire
850
100%
8.5-9.5
3.0-3.5
Low-Fire
500
59%
6.0-7.0
1.25
High-Fire
1000
100%
8.5-9.5
3.0-3.5
Low-Fire
500
50%
6.0-7.0
1.25
Manifold pressures are given in inches w.c.
High fire manifold pressure is adjustable on all heaters.
Low fire manifold pressure is non-adjustable on 235 MBH
and 350 MBH heaters.
Figure 4-7
Flue Gas Carbon Dioxide & Oxygen Measurements
Содержание INTELLIPAK RT-SVX10C-EN
Страница 16: ...15 Figure 3 1 Minimum Operation and Service Clearances for Single Multiple Unit Installation...
Страница 17: ...16 Figure 3 2A SAHF Cooling Only Units 20 thru 75 Ton...
Страница 19: ...18 Figure 3 2B SEHF SFHF SLHF SSHF SXHF Units 20 thru 75 Ton...
Страница 21: ...20 Figure 3 2C S_HG Cooling Heating Units 90 through 130 Ton...
Страница 25: ...24 Figure 3 4 Typical Unit Rigging Figure 3 5 Unit Base Roof Curb Section...
Страница 38: ...37 Figure 3 13 Steam Coil Piping 20 through 30 Ton Units Steam Coil Piping 40 through 130 Ton Units...
Страница 41: ...40 Figure 3 14 Continued Typical Field Power Wiring 90 thru 130 Ton Table 3 6 Customer Connection Wire Range...
Страница 52: ...51 Field Connection Diagram Notes for 20 through 130 Ton CV or VAV Applications...
Страница 86: ...84 Figure 4 6 Compressor Locations...
Страница 103: ...101 Service Maintenance Continued Table 5 3 Unit Internal Fuse Replacement Data VFD Factory Settings...
Страница 117: ...115...
Страница 118: ...116...