Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 57)

Chillers OptiChill Freecool
Chillers
57
Technical Manual : 7197700 v1.2.0 02_2013
Mechanical Data – Regular Quiet Continued
7 8
Notes Units OFC083R18-76ML2 OFC091R18-87HS4
2 Row Free Cool 3 Row Free Cool 2 Row Free Cool 3 Row Free Cool
Cooling Duty - AC Fans 1 kW 822.7 817.8 906 900.3
Nom Input -Cooling Only kW 283.8 286.5 324.9 328.2
EER 2 2.9 2.85 2.79 2.74
ESEER 7 2.93 2.88 2.92 2.88
SEER 7 2.91 2.86 2.89 2.85
Nominal Output - Free Cooling 5 kW 640.1 716.3 658.8 741
Ambient when Free Cooling = 100% Nominal DX 6 °C -0.4 1.3 -1.5 0.4
Cooling Duty - EC Fans 1 kW 820.9 817.6 909.4 906.1
Nom Input -Cooling Only kW 277 280.3 320.3 324.2
EER 2 2.96 2.92 2.84 2.8
ESEER 7 3.28 3.23 3.24 3.19
SEER 7 3.23 3.18 3.18 3.13
Nominal Output - Free Cooling 5 kW 663.4 746.3 685.4 776
Ambient when Free Cooling = 100% Nominal DX 6 °C 0.2 1.9 -0.9 1
Cooling Duty - High Airflow EC Fans 1 kW 820.6 817.2 908.8 905.4
Nom Input -Cooling Only kW 277.1 280.4 320.3 324.3
EER 2 2.96 2.91 2.84 2.79
ESEER 7 3.26 3.21 3.23 3.18
SEER 7 3.21 3.16 3.17 3.12
Nominal Output - Free Cooling 5 kW 683.5 771.1 707.3 803.5
Ambient when Free Cooling = 100% Nominal DX 6 °C 0.6 2.3 -0.4 1.5
Capacity Steps % 20, 30, 40, 55, 65, 80, 90, 100
Dimensions (H x W x L) mm 2600 x 2200 x 10850 2600 x 2200 x 10850
Machine Weight kg 11620 11675 11770 11850
Operating Weight 3 kg 13980 14185 14175 14380
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 58.1 58.1 79.2 79.2
Total Min. Water Flow l/s 14.4 14.4 19.7 19.7
Condenser - Type Rifled Copper Tube / Aluminium Fin
Face Area Total m² 35.6 35.6 35.6 35.6
Maximum Airflow - High Airflow EC Fans m³/s 95.5 91.3 95.5 91.3
Maximum Airflow - EC Fans m³/s 89.1 85.1 89.1 85.1
Maximum Airflow - AC Fans m³/s 81.6 77.5 81.6 77.5
Condenser Fan & Motor Sickle Bladed Axial Fan
Quantity 18 18 18 18
Diameter mm 800 800 800 800
Maximum Speed - High Airflow EC Fans RPM 1080 1080 1080 1080
Maximum Speed - EC Fans RPM 980 980 980 980
Maximum Speed - AC Fans RPM 900 900 900 900
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 169 + 170 169 + 170 180 + 173 180 + 173
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 1520 1653 1554 1687
Minimum System Water Volume 4 l 3851 3976 4571 4695
Max System Operating Pressure Bar 10 10 10 10
Flow Rate 20% Ethylene Glycol l/s 44.3 44 48.8 48.5
Pressure Drop 20% Ethylene Glycol kPa 150.1 130.4 129.2 106.4
(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,