Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 65)

Chillers OptiChill Freecool
Chillers
65
Technical Manual : 7197700 v1.2.0 02_2013
Mechanical Data - Extra Quiet Continued
23 24
Notes Units OFC078X16-76HS2 OFC079X16-76HL2
2 Row Free Cool 3 Row Free Cool 2 Row Free Cool 3 Row Free Cool
Cooling Duty - AC Fans 1 kW 770.9 763.9 774.9 767.6
Nom Input -Cooling Only kW 291.5 295.1 291.9 295.6
EER 2 2.65 2.59 2.66 2.6
ESEER 7 2.75 2.71 2.77 2.72
SEER 7 2.73 2.68 2.74 2.69
Nominal Output - Free Cooling 5 kW 506.2 558.1 506.8 558.9
Ambient when Free Cooling = 100% Nominal DX 6 °C -3.3 -1.4 -3.3 -1.5
Cooling Duty - EC Fans 1 kW 765.6 758.2 769.4 761.7
Nom Input -Cooling Only kW 281.1 284.8 281.6 285.3
EER 2 2.73 2.67 2.74 2.67
ESEER 7 3.05 3 3.06 3.01
SEER 7 3 2.95 3.01 2.96
Nominal Output - Free Cooling 5 kW 495.6 544.9 496.2 545.6
Ambient when Free Cooling = 100% Nominal DX 6 °C -3.5 -1.7 -3.6 -1.7
Cooling Duty - High Airflow EC Fans 1 kW 763.9 756.2 767.6 759.6
Nom Input -Cooling Only kW 281.9 285.7 282.4 286.2
EER 2 2.71 2.65 2.72 2.66
ESEER 7 3.03 2.98 3.05 2.99
SEER 7 2.98 2.93 2.99 2.94
Nominal Output - Free Cooling 5 kW 492.2 540.4 492.7 541
Ambient when Free Cooling = 100% Nominal DX 6 °C -3.6 -1.8 -3.7 -1.8
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 11315 11385 11315 11385
Operating Weight 3 kg 12545 12735 12545 12735
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 156 + 157 156 + 157 156 + 157 156 + 157
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 1228 1346 1228 1346
Minimum System Water Volume 4 l 3458 3568 3469 3580
Max System Operating Pressure Bar 10 10 10 10
Flow Rate 20% Ethylene Glycol l/s 41.5 41.1 41.7 41.3
Pressure Drop 20% Ethylene Glycol kPa 126.6 110.3 161.7 144.6
(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,