Trane RT-PRC031-EN manual Performance Adjustment Factors, Enthalpy of Saturated Air

Performance Adjustment Factors

Table 6 Enthalpy of Saturated Air

Wet Bulb
Temperature	Btu per Pound
41	15.70
43	16.66
42	16.17
43	16.66
44	17.15
45	17.65
46	18.16
47	18.68
48	19.21
49	19.75
50	20.30
51	20.86
52	21.44
53	22.02
54	22.62
55	23.22
56	23.84
57	24.48
58	25.12
59	25.78
60	26.46
61	27.15
62	27.85
63	28.57
64	29.31
65	30.06
66	30.83
67	31.62
68	32.42
69	33.25
70	34.09
71	34.95
72	35.83
73	36.74
74	37.66

Altitude/Temperature Correction

Air Density

Ratio (Density

at New

Air Density)

Condition/Std.

Air Handler Leaving AirTemperature (degrees F)

Figure 18. Air Density Ratios

Table 7 Cooling Capacity Altitude Correction Factors

			Altitude (Ft.)
	Sea Level	1000	2000	3000	4000	5000	6000	7000
Cooling Capacity Multiplier
	1.00	0.99	0.99	0.98	0.97	0.96	0.95	0.94
Sensible Heat Ratio Correction Multiplier	1.00	.98	.95	.93	.91	.89	.87	.85

Table 8 Gas Heating Capacity Altitude Correction Factors

	Sea Level To 2000	2001 to	2501 to	3501 to	4501 to	5501 to	6501 to
		2500	3500	4500	5500	6500	7500
Capacity Multiplier
	1.00	.92	.88	.84	.80	.76	.72

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