09CDF50 HERTZ
FORM SSI 09CDF (89)
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09CDFAir-Cooled CondensersNominal cooling capacity 11~128.5 ton
Air-Cooled Condensers - Quality and Value
1
With the 09CDF air - cooled condensers SSI offers a Fanschoice of 21 models with capacities from 11 to 128.5 36 in diameter with high-efficiency blade design. Extra ton for vertical and horizontal airflow. 09CDF deep fan shroud for optimum air flow.condensers are manufactured to the highest quality standards and offer the following distinct advantages:
Fan MotorsStandard voltage 400 V (± 10%), 3 phase, 50 HertzHeavy-duty construction with casing madeOperating in - 40F to 122F ambient temperature. from galvanized sheet metal for maximum UV and Protection IP55 (IEC 34-5), Class F (IEC 85 and IEC corrosion resistance.34-1). Each motor mounted on rigid four cross beam Advanced circuitry and fin design with a wideand wired to a terminal box close to the refrigerant selection of fin and tube materials.connections. Maximum 6 starts per hour. Motors must High-efficiency fan motors and propellers withrun at least two hours per month.optimized air management design.
Improved serviceability through large accessdoors for each fan motor section. Fan Cycling Control
During intermediate season,proper condensing temperature is controlled by fan control packages which permit shutoff from one to six Technical Descriptioncondenser fans.
CasingCoilsSelf supporting design, fan sections individually High performance aluminum fins and copper partitioned.tubes, staggered tube arrangement.Casing made from galvanized sheet metal. Lifting lugs One Schrader valve for each circuit.for all models provided. Service access doors for each Holding charge of minimum 1 bar.fan motor.
OptionsMultiple circuits.Copper Tube and Copper Fins.Copper Tube and Coated Aluminum Fins
Electrical Connection
Model Number Nomenclature
Coil designation
Fan arrangement:S = One row of fansD = Two rows of fans
Number of fans
09CDF Series designation
09CDF XX M X X
Delta
For other conditions, the required nominal sound Sound pressure level pressure level has to be determined as follows:
1. Select correction value for other conditions:All nominal sound pressure level information is given for the following conditions:
2. The required nominal sound pressure level to belooked up in the selection data is:
Sn= S+ dSRemarks about the sound pressure level?The sound pressure level has been measured by precision instruments in open field on a (S = your required sound level)compact semi-reverberent base.?The results obtained on a site may be different than the stated value, due to sound reflection phenomena (walls, etc).?Reduction of sound pressure as a function of distance is theoretical. Reflection Example:phenomena may modify the final result on site, on total sound pressure level or on some frequencies. Sound pressure level of 55 dB required at 60 ft.
Nominal capacity
All catalogue capacities are based on:Ambient temperature: 77 F
For other conditions the required nominal capacity Refrigerant: R-22has to be determined as follows:Altitude: 0 ft
Air temperature difference between condensing 1. Select correction factors for other conditionstemperature
and air inlet temperature ? t = 27 F
2. The required nominal capacity to be looked up in the Example:selection data is:
R-22, 90 F ambient temperature, ?t 20 F, altitude 2000 ft required capacity 30 Ton. Qn = Q/(f1 x f2 x f3 x f4)
(Q= your required capacity)
Correction factor for different ambient temperatures:
Ambient temperature (F) 60
1.032
70
1.014
77
1
80
0.993
90
0.971
100
0.949
110
0.929
120
0.91
Correction factor for ? t:
? t (F) 15
0.555
20
0.740
25
0.926
27
1
30
1.111
35
1.296
Correction factor for different refrigerants:
Refrigerant R-134a
0.97
R-22
1
R-407 C
0.98
Correction factor for different altitudes:
Altitude (ft) 0
1
1000
0.980
2000
0.958
3000
0.936
4000
0.917
5000
0.896
6000
0.875
7000
0.854
Determination of required nominal sound pressure leveland nominal capacity
2
Factor f1:
Factor f2:
Factor f3:
Factor f4:
8000
0.834
33.0 ft
4.0 ft
Correction values for different distances
15 30 60 90 120 150
-6 0 6 10 12 14
Distance (ft)
Correction by (dB)
dS: 6 dB
S
Sn:
55 dB
55+6=61 dB
Correction factor:
Required sound level:
Required nominal sound level:
Factor f3:
Factor f2:
Factor f1:
1
0.740
0.971
Factor f4:
Q:
Qn:
0.958
30 Ton
30/(0.971 x 0.740 x 1 x 0.95843.6 Ton
Refrigerant:
?t:
Ambient temperature:
Altitude:
Required capacity:
Required nominal capacity:
No. ofFan(s) KW
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
Technical Data
3
Approximate Dimensions (in)
4
