Glycol Data - AIREDALE LogiCool LCC20 Technical Manual

LOGICOOL™
Performance Data

GLYCOL DATA

CAUTION
Ethylene Glycol Nominal Correction Factors
Glycol in System / Freezing Point ºC
Output (kW)
Input (kW)
Water Flow (l/s)
Pressure Drop (kPa)
Propylene Glycol Nominal Correction Factors
Glycol in System / Freezing Point ºC
Output (kW)
Input (kW)
Water Flow (l/s)
Pressure Drop (kPa)
Example
Output (kW)
Compressor Input (kW)
Water Flow (l/s)
Pressure Drop (kPa)
Chillers
22
Technical Manual : 6521355 V1.14.0 11/2016
For a given percentage of glycol in the system there are correction factors that need to
be applied, the following tables can be used as a guide.
All free-cooling units should use a MINIMUM 20% glycol concentration.
20% / -9°C
x
20% / -6°C
x
Model Ref. = LCC40
Ambient: = 35°C
Fluid = 30% Ethylene Glycol
Inlet Fluid Temp. = 7°C
Outlet Fluid Temp. = 12°C (5°C
Output
=
3.9 x ΔT
Plot from curve (refer to
Pressure Drop (kPa), on page 23)
Where:
Output = (kW) Output kW, refer to
Input = (kW) Input kW, refer to
ΔT
= (°C) Difference of Entering Water and Leaving Water temperature
30% / -15°C
1.00
1.00
1.00
1.00
30% / -12°C
0.98
1.00
1.00
1.08

T)
Catalogue
33.7
14.4
1.99
Waterside
128
Capacity Data - DX (Mechanical)
Capacity Data - DX (Mechanical)
Chillers
40% / -23°C
0.98
0.98
1.09
1.29
40% / -20°C
0.94
0.98
0.99
1.22
Multiplier Corrected Figure
=
x 0.98 33.0 kW
=
x 0.98 14.1 kW
=
x 1.02 2.03 l/s
=
x 1.15 147.2 kPa
Cooling, on page 19
Cooling, on page 19
0.96
0.97
1.12
1.48
0.91
0.97
0.99
1.35