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57
ECONOMIZER, BAROMETRIC RELIEF AND PE PERFORMANCE (cont.)
Horizontal Application
0
500
1000
1500
2000
2500
3000
0.0
0.1
0.2
RE
T
URN AI
RF
L
O
W
(CF
M
)
RETURN DUCT STATIC PRESSURE DROP (in. wg)
HORIZONTAL ECONOMIZER
3 - 6 TON
C11239
Fig. 22 -- Return Air Pressure Drop
0
1000
2000
3000
4000
5000
6000
0.0
0.1
0.2
0.3
0.4
0.5
0.6
RE
T
U
RN AI
RF
L
O
W
(CF
M
)
HORIZONTAL ECONOMIZER
RETURN DUCT STATIC PRESSURE DROP (in. wg)
7.5 - 12.5 TON
C11241
Fig. 23 -- Return Air Pressure Drop
2,800
3,300
3,800
4,300
4,800
5,300
5,800
6,300
6,800
7,300
0.05
0.15
0.25
0.35
0.45
RE
T
U
RN AI
RL
O
W
(CF
M
)
RETURN DUCT STATIC PRESSURE DROP (in. wg)
HORIZONTAL ECONOMIZER STATIC PRESSURE ADDER
C11258
Fig. 24 -- Return Air Pressure Drop--Horizontal 15 Ton
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)
RE
L
IE
F
F
L
O
W
(CF
M
)
3 -6 Ton
7½ - 12½ Ton
Horizontal Economizers
C08070
Fig. 25 -- Barometric Relief Flow Capacity
0
500
1000
1500
2000
2500
0
0.05
0.1
0.15
0.2
0.25
0.3
R
ELI
EF
F
L
O
W
(
C
F
M
)
RETURN DUCT STATIC PRESSURE (in. wg)
15 -Ton
Horizontal Economizers
C101120
Fig. 26 -- Barometric Relief Flow--Horizontal 15 Ton
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
3 - 15 TON
C08012
Fig. 27 -- Horizontal Power Exhaust Performance
Summary of Contents for WeatherMaker 48TC**04
Page 22: ...22 CURBS WEIGHTS DIMENSIONS cont C10298A Fig 5 Dimensions 48TC 08 12 ...
Page 25: ...25 CURBS WEIGHTS DIMENSIONS cont A14149 Fig 9 Dimensions 48TC 14 ...
Page 27: ...27 CURBS WEIGHTS DIMENSIONS cont C14151 Fig 12 Dimensions 48TC 16 ...
Page 29: ...29 CURBS WEIGHTS DIMENSIONS cont C10772B Fig 15 Roof Curb Details 48TC 16 ...