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Table 3 3 – STATIC PRESSURE ADDERS (Factory Options and/or Accessories)
PERFECT HUMIDITY
3 --- 6 TO NS
CFM (in. wg) 1000 1250 1500 1750 2000 2250 2500 2750 3000
3Tons 0.04 0.052 0.07 --- --- --- --- --- ---
4Tons --- 0.106 0.138 0.172 0.21 --- --- --- ---
5Tons --- --- 0.138 0.172 0.21 0.252 0.30 --- ---
6Tons --- --- --- 0.112 0.125 0.161 0.19 0.22 0.25
7.5---12.5 TONS
CFM (in. wg) 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 5500 5750 6000
7.5 Tons 0.12 0.14 0.16 0.19 0.21 0.23 0.26 --- --- --- --- --- --- --- --- ---
8.5 Tons --- 0.11 0.12 0.13 0.15 0.17 0.18 0.20 0.22 --- --- --- --- --- --- ---
10 Tons --- --- --- 0.13 0.15 0.17 0.18 0.20 0.22 0.24 0.26 0.28 --- --- --- ---
12.5 Tons --- --- --- --- --- 0.17 0.18 0.20 0.22 0.24 0.26 0.28 0.31 0.33 0.36 0.39
ECONOMIZER, BAROMETRIC RELIEF AND PE PERFORMANCE
0
500
1000
1500
2000
2500
0 0.05 0.1 0.15 0.2 0.25 0.3
RETURN DUCT STATIC PRESSURE (in. wg)
RELIEF FLOW (CFM)
3 -6 Ton
7½ - 12½ Ton
Horizontal Economizers
C08070
Fig. 11 -- Bar ometric Relief Flow Capacity
0
5
10
15
20
25
30
0.00 0.10 0.20 0.30 0.40 0.50
STATIC PRESSURE DELTA (in. wg)
LEAKAGE ACROSS DAMPER (CFM)
3 - 6 Ton
7 1/2 - 12 1/2 Ton
Horizontal Economizers
C08071
Fig. 12 -- Outdoor Air Damper Leakage
0
1000
2000
3000
4000
5000
6000
0 0.1 0.2 0.3 0.4
RETURN DUCT STATIC PRESSURE DROP (in. wg)
RETURN AIR FLOW (CFM)
3 - 6 TON
7 1/2 - 12 1/2 Ton
Horizontal Economizers
C08072
Fig. 13 -- Retu rn Air Pressu re Dro p
0
500
1000
1500
2000
2500
0 0.1 0.2 0.3 0.4 0.5
EXHAUST AIRFLOW
(cfm)
RETURN DUCT
STATIC PRESSURE (in. wg)
Horizontal Power Exhaust
C08012
Fig. 14 -- Horizontal Power Exhaust Performance
580J