Trane RT-SVX10C-EN specifications Mbh, Firing Manifold, CO2 Pressure

Table 4-7

Recommended Manifold Pressures and CO2 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

Table 4-8

Natural Gas Combustion Curve

(Ratio of Oxygen to Carbon Dioxide in percent)

Percent Carbon Dioxide

18
17										Curve		Fuel
16										A	=	1,000 BTU per cu. ft.
15
												of Natural Gas.
14
13
12
11							A
10
9
8
7
6
5
4
3
2
1
0
0	1	2	3	4	5	6	7	8	9	10 11 12 13 14 15 16 17 18 19 20 21
								Percent Oxygen

Figure 4-8

Gas Valve Adjustment Screw Locations

96