Packaged Rooftop Air Conditioners - RT-DS-9 - Page 916

Packaged Rooftop Air Conditioners -RT-DS-9

Performance Adjustment Factors

Table 17-1— Enthalpy of Saturated AIR

Table 17-2 — Cooling Capacity Altitude CorrectionFactors

	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
KW Correction Multiplier (Compressors)	1.00	1.01	1.02	1.03	1.04	1.05	1.06	1.07
SHR Correction Multiplier	1.00	.98	.95	.93	.91	.89	.87	.85
Maximum Condenser Ambient	115F	114F	113F	112F	111F	110F	109F	108F

Note:

SHR = Sensible Heat Ratio

Air Density Ratio
(Density at New Air
Density Condition Std.)

Figure 17-1 — Air Density Ratios

Table 17-3 — Gas Heating Capacity Altitude Correction Factors

Note:

Correction factors are per AGA Std 221.30 — 1964, Part VI, 6.12. Local codes may supersede.

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