Chillers optichill freecool, Chillers, Mechanical data - extra quiet continued – Airedale OptiChill FreeCool 500kW - 1365kW User Manual
Page 71
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Chillers
OptiChill Freecool
Chillers
71
Technical Manual :
7197700 v1.2.0 02_2013
Mechanical Data - Extra Quiet Continued
35
36
Notes
Units
OFC104X20-99HL6
OFC076X22-66HS1
2 Row Free Cool
3 Row Free Cool
2 Row Free Cool
3 Row Free Cool
Cooling Duty - AC Fans
1
kW
1069.3
1059.1
757.4
753.1
Nom Input -Cooling Only
kW
410
415.5
264.9
267.4
EER
2
2.61
2.55
2.86
2.82
ESEER
7
2.96
2.91
2.84
2.8
SEER
7
2.91
2.86
2.82
2.78
Nominal Output - Free Cooling
5
kW
668.7
745.6
666.3
734
Ambient when Free Cooling = 100% Nominal DX
6
°C
-4.2
-2
1.4
2.7
Cooling Duty - EC Fans
1
kW
1061.6
1050.7
754.2
749.5
Nom Input -Cooling Only
kW
397.7
403.3
248.7
251.3
EER
2
2.67
2.6
3.03
2.98
ESEER
7
3.27
3.21
3.3
3.25
SEER
7
3.19
3.13
3.25
3.2
Nominal Output - Free Cooling
5
kW
653.7
726.4
653.7
718.4
Ambient when Free Cooling = 100% Nominal DX
6
°C
-4.5
-2.3
1.2
2.5
Cooling Duty - High Airflow EC Fans
1
kW
1059
1047.7
753.1
748.3
Nom Input -Cooling Only
kW
399
404.7
249.3
251.8
EER
2
2.65
2.59
3.02
2.97
ESEER
7
3.25
3.19
3.27
3.22
SEER
7
3.18
3.12
3.22
3.17
Nominal Output - Free Cooling
5
kW
648.9
719.8
649.6
712.9
Ambient when Free Cooling = 100% Nominal DX
6
°C
-4.6
-2.5
1.1
2.4
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 12850
Machine Weight
kg
13910
13985
13960
14055
Operating Weight
3
kg
15890
16115
15720
15975
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
91.9
91.9
72.8
72.8
Total Min. Water Flow
l/s
22.8
22.8
18.1
18.1
Condenser - Type
Rifled Copper Tube / Aluminium Fin
Face Area Total
m²
39.6
39.6
43.6
43.6
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
76
72.3
Maximum Airflow - AC Fans
m³/s
67.7
63.4
74.4
69.8
Condenser Fan & Motor
Sickle Bladed Axial Fan
Quantity
20
20
22
22
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
208 + 209
208 + 209
191 + 192
191 + 192
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
1977
2125
1756
1919
Minimum System Water Volume
4
l
5416
5553
3977
4132
Max System Operating Pressure
Bar
10
10
10
10
Flow Rate 20% Ethylene Glycol
l/s
57.5
57
40.8
40.5
Pressure Drop 20% Ethylene Glycol
kPa
165.7
131.3
101.7
81.6
(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,