Economizer, barometric relief and pe performance, 581j, Fig. 9 -- barometric relief flow capacity – Bryant PREFERRED 581J User Manual
Page 43: Fig. 10 -- return air pressure drop, Fig. 11 -- horizontal power exhaust performance, Fig. 12 -- barometric relief flow capacity, Fig. 13 -- return air pressure drop, Fig. 14 -- vertical power exhaust performance
43
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 PRESS URE (in. wg)
RE
L
IE
F
F
L
O
W
(CF
M
)
3 -5 Ton
- Ton
Horizontal Economizers
½
8
6
C10233
Fig. 9 -- Barometric Relief Flow Capacity
0
1000
2000
3000
4000
5000
6000
0
0.1
0.2
0.3
0.4
RETURN DUCT STATIC PRESS URE DROP (in. wg)
RE
T
U
R
N
AI
R F
L
O
W
(CF
M
)
3 - TON
-
1/2
Ton
Horizontal Economizers
8
5
6
C10235
Fig. 10 -- Return Air Pressure Drop
0
500
1000
1500
2000
2500
0
0.1
0.2
0.3
0.4
0.5
STATIC PRESSURE (in. wg)
FLOW
(cfm)
3-8.5 Ton
C10239
Fig. 11 -- Horizontal Power Exhaust Performance
0
500
1000
1500
2000
2500
0
0.05
0.1
0.15
0.2
0.25
0.3
RETURN DUCT STATIC PRESS URE (in. wg)
R
E
L
IE
F
FL
O
W
(C
FM
)
3 - Ton
- ½
Ton
Vertical Economizers
8
5
6
C10236
Fig. 12 -- Barometric Relief Flow Capacity
0
1000
2000
3000
4000
5000
6000
0
0.1
0.2
0.3
0.4
RETURN DUCT STATIC PRESS URE DROP (in. wg)
RE
T
U
R
N
AI
R F
L
O
W
(CF
M
)
3 - TON
- 1/2 Ton
Vertical Economizers
8
5
6
C10238
Fig. 13 -- Return Air Pressure Drop
0
1000
2000
3000
4000
5000
0
0.1
0.2
0.3
0.4
0.5
STATIC PRESSURE (in. wg)
FLOW
(cfm)
3 - 5 Ton
6 - 8 1/2 Ton
C10240
Fig. 14 -- Vertical Power Exhaust Performance
581J