Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 55)

Chillers OptiChill Freecool
Chillers
55
Technical Manual : 7197700 v1.2.0 02_2013
Mechanical Data – Regular Quiet Continued
3 4
Notes Units OFC081R16-76MS2 OFC081R16-76ML2
2 Row Free Cool 3 Row Free Cool 2 Row Free Cool 3 Row Free Cool
Cooling Duty - AC Fans 1 kW 806.1 800.5 810.8 805.1
Nom Input -Cooling Only kW 284.4 287.3 284.8 287.7
EER 2 2.83 2.79 2.85 2.8
ESEER 7 2.9 2.86 2.92 2.87
SEER 7 2.88 2.83 2.89 2.85
Nominal Output - Free Cooling 5 kW 574.2 642.1 575.2 643.4
Ambient when Free Cooling = 100% Nominal DX 6 °C -1.8 0 -1.9 0
Cooling Duty - EC Fans 1 kW 810.1 806.7 814.9 811.6
Nom Input -Cooling Only kW 280.5 284 280.9 284.4
EER 2 2.89 2.84 2.9 2.85
ESEER 7 3.2 3.15 3.22 3.16
SEER 7 3.15 3.1 3.17 3.11
Nominal Output - Free Cooling 5 kW 596.9 671.6 598 673.1
Ambient when Free Cooling = 100% Nominal DX 6 °C -1.3 0.6 -1.3 0.5
Cooling Duty - High Airflow EC Fans 1 kW 809.3 805.9 814.2 810.7
Nom Input -Cooling Only kW 280.5 284 280.9 284.4
EER 2 2.89 2.84 2.9 2.85
ESEER 7 3.19 3.13 3.2 3.15
SEER 7 3.14 3.08 3.15 3.1
Nominal Output - Free Cooling 5 kW 615.4 694.4 616.6 696
Ambient when Free Cooling = 100% Nominal DX 6 °C -0.8 1.1 -0.8 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 11260 11315 11260 11315
Operating Weight 3 kg 12490 12665 12490 12665
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 84.9 81.2 84.9 81.2
Maximum Airflow - EC Fans m³/s 79.2 75.6 79.2 75.6
Maximum Airflow - AC Fans m³/s 72.5 68.9 72.5 68.9
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 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 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 3547 3657 3559 3669
Max System Operating Pressure Bar 10 10 10 10
Flow Rate 20% Ethylene Glycol l/s 43.4 43.1 43.6 43.3
Pressure Drop 20% Ethylene Glycol kPa 137.6 120.4 175.7 157.8
(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,