RT-SVX36G-EN
135
Unit Start Up
Table 49. Fresh air damper pressure drop (inches w.c.) — Air-Cooled and Evaporative Condensing
(20, 25 Ton and 24, 29 Ton) Units
(50, 55 and 59 Ton) Units
CFM
Damper Position
CFM
Damper Position
#1
#2
#3
#4
#5
#6
#1
#2
#3
#4
#5
#6
4000
0.03
0.04
0.06
0.13
0.16
0.33
10000
0.03
0.04
0.09
0.18
0.23
0.55
6000
0.03
0.04
0.10
0.20
0.30
0.90
14000
0.09
0.12
0.20
0.35
0.50
1.36
8000
0.19
0.21
0.32
0.52
0.75
1.75
18000
0.31
0.36
0.50
0.79
1.10
-
9000
0.30
0.35
0.48
0.76
1.08
2.40
20000
0.45
0.51
0.70
1.05
1.57
-
10000
0.45
0.51
0.70
1.05
1.57
-
22000
0.58
0.66
0.75
1.30
1.95
-
11000
0.62
0.71
0.95
1.42
2.15
-
24000
0.75
0.88
1.10
1.75
2.50
-
(30, 36 Ton) Units
(60, 70, 75 Ton and 73, 80, 89 Ton) Units
CFM
Damper Position
CFM
Damper Position
#1
#2
#3
#4
#5
#6
#1
#2
#3
#4
#5
#6
6000
0.03
0.04
0.07
0.15
0.20
0.43
14000
0.03
0.04
0.12
0.25
0.35
1.05
8000
0.03
0.05
0.11
0.21
0.30
0.90
18000
0.19
0.21
0.32
0.52
0.75
1.75
10000
0.15
0.19
0.26
0.43
0.62
1.50
22000
0.45
0.51
0.70
1.05
1.57
-
11000
0.20
0.25
0.37
0.60
0.85
1.85
26000
0.70
0.80
1.02
1.58
2.30
-
12000
0.31
0.36
0.50
0.79
1.10
2.40
28000
0.88
1.03
1.30
2.20
-
-
13000
0.42
0.48
0.62
0.97
1.42
-
30000
1.05
1.22
1.55
2.65
-
-
(40, 48 Ton) Units
(90 - 130 Ton) Units
CFM
Damper Position
CFM
Damper Position
#1
#2
#3
#4
#5
#6
#1
#2
#3
#4
#5
#6
8000
0.03
0.04
0.08
0.16
0.21
0.52
27000
0.31
0.36
0.50
0.79
1.10
2.40
10000
0.03
0.05
0.11
0.21
0.30
0.90
32000
0.55
0.64
0.72
1.25
1.88
-
12000
0.10
0.13
0.21
0.38
0.55
1.40
36000
0.75
0.88
1.10
1.75
2.50
-
14000
0.20
0.25
0.37
0.60
0.85
1.85
40000
1.00
1.18
1.50
2.50
-
-
16000
0.41
0.46
0.60
0.94
1.38
-
43000
1.20
1.42
1.92
-
-
-
18000
0.56
0.65
0.74
1.28
1.92
-
46000
1.40
1.58
2.29
-
-
-
NOTICE:
Compressors Failure!
Unit must be powered and crankcase heaters energized at least 8 hours BEFORE compressors
are started. This will protect the compressors from premature failure.
