Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 64)

OptiChill Freecool
Active Cabinet Exhaust
Chillers
64
Chillers
Technical Manual : 7197700 v1.2.0. 02_2013
Mechanical Data - Extra Quiet
21 22
Notes Units OFC073X16-66HS1 OFC074X16-66HL1
2 Row Free Cool 3 Row Free Cool 2 Row Free Cool 3 Row Free Cool
Cooling Duty - AC Fans 1 kW 726.8 720.5 730.1 723.7
Nom Input -Cooling Only kW 269.3 272.6 269.7 273
EER 2 2.7 2.64 2.71 2.65
ESEER 7 2.8 2.75 2.81 2.76
SEER 7 2.77 2.72 2.79 2.74
Nominal Output - Free Cooling 5 kW 498.9 548.9 499.5 549.6
Ambient when Free Cooling = 100% Nominal DX 6 °C -2.5 -0.7 -2.5 -0.8
Cooling Duty - EC Fans 1 kW 722 715.3 725.3 718.6
Nom Input -Cooling Only kW 258.6 262 259.1 262.5
EER 2 2.79 2.73 2.8 2.74
ESEER 7 3.13 3.07 3.14 3.08
SEER 7 3.07 3.02 3.09 3.03
Nominal Output - Free Cooling 5 kW 488.8 536.2 489.3 536.9
Ambient when Free Cooling = 100% Nominal DX 6 °C -2.7 -1 -2.8 -1.1
Cooling Duty - High Airflow EC Fans 1 kW 720.5 713.5 723.7 716.7
Nom Input -Cooling Only kW 259.4 262.9 259.8 263.3
EER 2 2.78 2.71 2.79 2.72
ESEER 7 3.11 3.05 3.12 3.06
SEER 7 3.05 3 3.07 3.01
Nominal Output - Free Cooling 5 kW 485.5 531.9 486 532.5
Ambient when Free Cooling = 100% Nominal DX 6 °C -2.8 -1.1 -2.9 -1.1
Capacity Steps % 20, 30, 40, 55, 65, 80, 90, 100
Dimensions (H x W x L) mm 2600 x 2200 x 9850 2600 x 2200 x 9850
Machine Weight kg 11295 11360 11295 11360
Operating Weight 3 kg 12535 12710 12535 12710
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 31.7 31.7 31.7 31.7
Maximum Airflow - High Airflow EC Fans m³/s N/A N/A N/A N/A
Maximum Airflow - EC Fans m³/s 55.3 52.6 55.3 52.6
Maximum Airflow - AC Fans m³/s 54.1 50.7 54.1 50.7
Condenser Fan & Motor Sickle Bladed Axial Fan
Quantity 16 16 16 16
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 154 + 155 154 + 155 154 + 155 154 + 155
Water Connections
Type Grooved Terminations
Inlet / Outlet - Unit DN150 DN150 DN150 DN150
Water Drain / Bleed - Evap inch 0.5 0.5 0.5 0.5
Water System - Volume l 1240 1358 1240 1358
Minimum System Water Volume 4 l 3464 3575 3478 3588
Max System Operating Pressure Bar 10 10 10 10
Flow Rate 20% Ethylene Glycol l/s 39.1 38.8 39.3 39
Pressure Drop 20% Ethylene Glycol kPa 111.5 97 141.5 126.4
(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,