AIREDALE UFC200D-8, Руководство по установке, эксплуатации и техническому обслуживанию

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Chillers ULTIMA FREECOOL
Chillers
Installation & Maintenance Manual : 903-125 IM E 05/04/A
17
Installation Data
GLYCOL DATA
CAUTION All free-cooling units should use minimum 20% glycol concentration.
Ethylene Glycol Nominal Correction Factors
Glycol in System / Freezing Point ºC 20% / -9°C 30% / -15°C 40% / -23°C
Cooling Duty
1.00 0.98 0.96
Input Power
1.00 0.98 0.97
Water Flow
1.00 1.02 1.05
Pressure Drop
x by
1.00 1.15 1.31
Propylene Glycol Nominal Correction Factors
Glycol in System / Freezing Point ºC 20% / -6°C 30% / -12°C 40% / -20°C
Cooling Duty 1.00 0.96 0.93
Input Power 1.00 0.98 0.97
Water Flow 1.00 0.98 0.98
Pressure Drop
x by
1.00 1.13 1.25
Example UFC500D-12 operating at 7/12, 30°C Ambient, 30% Ethylene Glycol
Cooling kW (484.9) (refer to
Technical Manual
) x 0.98 475.2 kW
Input kW (194.0) (refer to
Technical Manual
) x 0.98 190.1 kW
Flow l/s ( 24.2) (calculated:
4 x T
kW) Cooling (DX
∆
)
x 1.02 24.7 l/s
Pressure Drop kPa (122.0) (refer to
Waterside Pressure Drops
) x 1.15
30% Ethylene
Glycol =
140.3 kPa
Waste glycol needs to be handled responsibly, recycled or turned over to
professional personnel for correct disposal. Most anti-freeze manufacturers
recommend that used anti-freeze be collected and disposed according to Local
Legislation. Waste glycol should NOT be drained onto the ground, rainwater
drainage system or natural waters.
IIf the glycol contains heavy metals or other contaminants from gas or oil, the level
of hazard posed by the glycol is increased and could be characterised as
hazardous waste.
STEPS IF GLYCOL IS RELEASED/SPILLED
Small spill - soak up with absorbent material.
CAUTION
Large spill - contain spill and pump to suitable container for disposal.