Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 69)

Chillers OptiChill Freecool
Chillers
69
Technical Manual : 7197700 v1.2.0 02_2013
Mechanical Data - Extra Quiet Continued
31 32
Notes Units OFC076X20-66HS1 OFC081X20-76ML2
2 Row Free Cool 3 Row Free Cool 2 Row Free Cool 3 Row Free Cool
Cooling Duty - AC Fans 1 kW 749.8 744.9 807.9 802
Nom Input -Cooling Only kW 265.1 267.9 285.4 288.5
EER 2 2.83 2.78 2.83 2.78
ESEER 7 2.83 2.79 2.91 2.86
SEER 7 2.82 2.77 2.88 2.84
Nominal Output - Free Cooling 5 kW 612.1 674.1 624.4 689.7
Ambient when Free Cooling = 100% Nominal DX 6 °C 0.3 1.7 -0.5 1
Cooling Duty - EC Fans 1 kW 746.1 740.9 803.5 797.2
Nom Input -Cooling Only kW 250.8 253.6 271.3 274.4
EER 2 2.97 2.92 2.96 2.91
ESEER 7 3.25 3.2 3.31 3.26
SEER 7 3.2 3.15 3.26 3.2
Nominal Output - Free Cooling 5 kW 600.2 659.4 611.8 674
Ambient when Free Cooling = 100% Nominal DX 6 °C 0.1 1.5 -0.8 0.8
Cooling Duty - High Airflow EC Fans 1 kW 744.9 739.5 802 795.5
Nom Input -Cooling Only kW 251.4 254.2 272 275.1
EER 2 2.96 2.91 2.95 2.89
ESEER 7 3.23 3.18 3.29 3.24
SEER 7 3.18 3.13 3.24 3.18
Nominal Output - Free Cooling 5 kW 596.4 654.3 607.7 668.5
Ambient when Free Cooling = 100% Nominal DX 6 °C 0 1.4 -0.8 0.7
Capacity Steps % 20, 30, 40, 55, 65, 80, 90, 100
Dimensions (H x W x L) mm 2600 x 2200 x 11850 2600 x 2200 x 11850
Machine Weight kg 13210 13290 13185 13265
Operating Weight 3 kg 14850 15080 14805 15035
Construction Material
Base: Plain Galvanised Steel, Panels: Galvanised Sheet Steel, Epoxy Baked
Powder Paint, Light Grey (RAL 7035)
Evaporator - Type Shell and Tube
Insulation Class O / UV Stable
Total Max. Water Flow l/s 72.8 72.8 58.1 58.1
Total Min. Water Flow l/s 18.1 18.1 14.4 14.4
Condenser - Type Rifled Copper Tube / Aluminium Fin
Face Area Total m² 39.6 39.6 39.6 39.6
Maximum Airflow - High Airflow EC Fans m³/s N/A N/A N/A N/A
Maximum Airflow - EC Fans m³/s 69.1 65.7 69.1 65.7
Maximum Airflow - AC Fans m³/s 67.7 63.4 67.7 63.4
Condenser Fan & Motor Sickle Bladed Axial Fan
Quantity 20 20 20 20
Diameter mm 800 800 800 800
Maximum Speed - High Airflow EC Fans RPM N/A N/A N/A N/A
Maximum Speed - EC Fans RPM 700 700 700 700
Maximum Speed - AC Fans RPM 700 700 700 700
Compressor - Type Semi-Hermetic Twin Screw Compressor
Quantity 2 2 2 2
Oil Charge Volume (Total) l 35 + 35 35 + 35 35 + 35 35 + 35
Oil Type BSE 170 Polyol Ester Oil
Refrigerant - Control Electronic Expansion Valve
Refrigerant Pre-charged R134a
Charge (Total) CCT1 + CCT2 kg 180 + 181 180 + 181 182 + 183 182 + 183
Water Connections
Type Grooved Terminations
Inlet / Outlet - Unit DN200 DN200 DN200 DN200
Water Drain / Bleed - Evap inch 0.5 0.5 0.5 0.5
Water System - Volume l 1635 1783 1624 1771
Minimum System Water Volume 4 l 3858 3998 3953 4092
Max System Operating Pressure Bar 10 10 10 10
Flow Rate 20% Ethylene Glycol l/s 40.4 40.1 43.5 43.2
Pressure Drop 20% Ethylene Glycol kPa 96.3 78.2 149.2 127.9
(1) Based on units performance at 15/10°C return/supply temperatures, 35°C ambient, 20% Ethylene Glycol.
(2) EER = DX Cooling Output / (Compressor Input Power + Fan Input Power)
(3) Based on standard unit without options, operating weight includes refrigerant charge and water volume.
For unit weights with waterside options fitted please refer to Airedale.
(4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
(5) Nominal Free Cooling Output at 15/10°C return/supply temperatures, 3°C ambient, 20% Ethylene Glycol.
(6) Ambient temperature that Maximum Nominal DX Duty can be achieved using Free Cooling only.
(7) ESEER / SEER based upon unit operating at 12 / 7 °C return / supply temperature, 35°C ambient,