Specifications

45
PERFORMANCE DATA (cont)
50
40
30
20
10
0
0
0.25
0.5
0.75 1
FLOW (CFM)
STATIC PRESSURE (in. wg)
3 TO 6 TON
7 1/2 TO 12 1/2 TON
0.25
0.20
0.15
0.10
0.05
0.00
1200
2000
2800
3600 4400
FLOW (CFM)
STATIC PRESSURE (in. wg)
3 TO 6 TON
7 1/2 TO 12 1/2 TON
0.35
0.30
Vertical EconoMi$er Outdoor-Air Leakage
Vertical EconoMi$er Return-Air Pressure Drop
Horizontal EconoMi$er Outdoor Air Leakage
3 to 6 Ton
7
1
/
2
to 12
1
/
2
To n
FLOW IN CUBIC FEET PER MINUTE (cfm)
STATIC PRESSURE (in. wg)
0.00
0.10
0.20
0.30
0.40
0.50
80
60
40
20
0
FLOW IN CUBIC FEET PER MINUTE (cfm)
0
1000 2000 3000 4000
5000
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
STATIC PRESSURE (in. wg)
Horizontal EconoMi$er Return Air Pressure Drop
3 to 6 Ton
7
1
/
2
to 12
1
/
2
To n
OUTDOOR SOUND POWER (TOTAL UNIT)
LEGEND
UNIT
551B
ARI RATING
(dB)
OCTAVE BANDS
63 125 250 500 1000 2000 4000 8000
036,048
76 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3
060,072
80 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0
090,102
82 62.2 69.3 71.5 74.7 76.2 72.9 68.7 61.5
120
84 64.6 71.1 73.3 76.9 77.6 73.7 70.6 63.7
150
86 63.7 69.9 72.5 78.2 81.1 77.3 73.3 66.8
ARI —
Air Conditioning and Refrigeration Institute
dB —
Sound Levels (decibels)