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3. From the Ratings on pages 16 - 46:
SELECT. YCAL0050 (Eng lish Units)
53.1 Tons
48.7 Compressor kW
11.7 Unit EER
4. Calculate Comp ressor kW at 50 Tons:
kW = 50 x 48.7kW = 45.9kW
53.1
5. Calculate GPM:
GPM = 50 Tons x 24 = 120 GPM
10-F Range
6. F ro m Page 14, read 10 ft of water cooler p ressure
drop for GPM:
7. AYCAL005O Is suitable.
EXAMPLE -Brine Chilling
1. GIVEN: Provide a capa city of 34 tons cooling
30% by weight Ethylene Glycol from
50-F td 401.0.0D025FF, 95-F air on
the condenser, 60 Hz and 4000 IL altitude.
2. DETERMINE:
Unit Size
kW Input
Ethylene Glycol GPM
Cooler Pressure D ro p
3. See Ethylene Glycol correction factors, for 30% by
weight Ethylene Glycol..
12
READ: .974 Tons factor
.995 Compr. kW fa ctor
26.1 GaIlF/ronsfactor
4. See Performance Data Correc ti
on Factors for
0.00025 fouling factor and 4000 R alti tu
de.
READ: .083 Tons fa ctor
. 1.021 kW factor
RPP-24544 REV I
S. From RATINGS on pages 16-46:
145579-V--DS-12.1, AppendlxA
Page 12 of 116
SELECT. YCAL0040 (English Uras)
36.1 Tons
38.6 Compressor kW
6. Detemime YCAL0040 b ri ne cooling capa city
and Compressor kW requirement
A Tons - 36.1 x .974 x .983 = 34.6
S. Compr. kW - 38.6 x .995 x 1.021 = 39.2
7. Determine average full load Comp ressor kW at
34 tons:
34 tons x (392 I(W) - 38.5 Compressor kW
34.6 tons
8. Determine Ethylene Glycol GPM:
Tons x Gal. 71minribn factor
GPM =
Range
GPM =
34.0 x 26.1
GPM = 88.7
9. Determine Cooler Pressure Drop:
/C- tee Ethylene Glycol cor rec ti on factors for
30% by weight Ethylene Glycol.
10
READ: 1.096 Pressu re D ro p Factor
B. See page 14 at 88.7 GPM for the YCAL0040.
READ: 6.5 FL HO P ressure Drop
C. Cooler Pressu re
Drop = 6.5 x 1.096 or 7.1 FL
H2O
10. YCAL0040 Is suitable.
^^w
Originator.
Attachment: 8 Date: 7L29LL O
Calc. No: 145579-V-CA-004 Checked by.
Rev. No.: 1 Date: D7 Nib. O q-
Sheet 2 of 4
A5-663
YORK INTERNAnoNAL
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