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  1. OPTIMA-HD.CW/CWD Chilled Water Precision Air Conditioner for Critical Application

OPTIMA-HD.CW/CWD Chilled Water Precision Air Conditioner for Critical Application

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Brief Introduction
OPTIMA-HD will save the precious space with high cooling density and the high air volume for the customers, the maximum cooling density= 80kW/m2 (two circuits working at the same time). It adopts B/D size cabinet and can supply air with under floor fan section. OPTIMA-HD has two versions:
OPTIMA-HD.CW: Single chilled water circuit
OPTIMA-HD.CWD: Double chilled water circuits
Capacity
42.1kW~180.9kW  
Applications
Middle and high telecommunication exchange room
Middle and big data center and computer room
Museum and library
Precision machining equipment center
Features
High Efficiency
Use chilled water as cooling resource. Chilled water enters into the cooling coil and exchanges the heat with the return air to lower the room temperature. By increasing the return water temperature, the EER of the chiller will be optimized. By using the free cooling circuits, more energy will be saved.Free cooling system starts priority operating in dual cooling coils.
 

Compact, High Cooling Density, High Air Volume
Highly compact structure to achieve the high cooling density and the high air volume at the same time. It will save the precious space for the customers, the maximum cooling density= 80KW/m2 (two circuits working at the same time).
 

Precise Control
The control accuracy for temperature is ±1℃ and for Relative humidity is ±5%;
 

Various Cooling Schemes Available
Up flow with duct, front under flow, under flow with the under floor fan section.

 

EC fan
Save energy by reducing the fan speed when necessary; adjust external static pressure and air volume according to the external static pressure change;

Electric Heater
Stainless steel pipe twisted with fins around the pipe;
 

High reliability
Without mechanical cooling, all the components connected to microprocessor are continuously monitored and controlled and, in case of malfunction, the unit is shut up and the failure is shown on the display.
 

Isolated Control Panel
All the electrical and control components are installed on an isolated control panel with orderly wiring and clear labeling, meeting the IEC norm.
 

Easy Maintenance
Technical compartment recessed from the air flow, housing compressor, humidifier, control and safety devices for ordinary service and preventive maintenance during operation.
 

Option

OPTIMA-HD.CW

OPTIMA-HD.CWD

Centrifugal Fan with 3 Phase, AC powered motor

Motorized 3-way valve

Air pressure switch for clogged filter alarm.

Supply air plenum for up flow unit

Supply air temperature sensor

Supply air pressure sensor

Installation support stand with adjustable legs

Floor water leakage alarm kit

Colored touch screen graphical user interface

RS232 communication card

RS485 communication card

PcoWeb card serve as web based server

Clock card

Communication protocol converter

Phase sequence protection relay for power supply

Note: “○”option available,“—”no option available.

 

OPTIMA-HD.CW/CWD

Model

 

40B1

60B1

80B2

100B2

120B3

140B3

160B4

180B4

50D1

60D1

80D2

100D2

120D3

140D3

Circuit

 

CW: single circuit

CWD: double circuit

Supply air scheme

 

O:Up flow; U:Down flow

U:Down flow

Power source

 

380V/3Ph/50Hz

380V/3Ph/50Hz

Cooling capacity(1)

kW

42.1

60.7

83.6

101.6

123.3

145.2

160.5

180.9

50.4

61.1

81.0

100.7

120.5

143.2

Water flow(1)

m3/h

7.2

9.6

14.2

17.3

19.5

24.7

26.3

28.4

7.7

9.6

12.7

14.8

17.9

22.0

Water pressure drop(1)

kPa

95

97

86

94

93.6

91.2

98.6

83.9

101.1

123.1

83.1

83.2

184.6

156.6

Supply fan

 

 

 

Type

 

EC Centrifugal Fan

EC Centrifugal Fan

Qty. of fan

n.

1

1

2

2

3

3

3

3

1

1

2

2

3

3

Air volume

m3/h

11700

12600

22600

23600

31800

32600

37200

37200

11600

12300

23600

22800

31200

33600

Electric heater capacity

kW

9

9

13.5

13.5

18

18

18

18

9

9

13.5

13.5

13.5

13.5

Humidification capacity

Kg/h

8

8

8

8

8

8

8

8

8

8

8

8

8

8

Width*Depth*Height(O/U)(2)

mm

900*900*1960/1730

1750*900*1960/1730

2490*900*1960/1730

2905*900*1960/1730

1250*900*1900

1750*900*1900

2560*900*1900

Weight

Kg

375

405

525

560

670

750

840

910

380

405

465

490

580

640

(1) Return air dry bulb temperature 24℃, RH50%, inlet/outlet chilled water temperature 7℃/12℃;
(2) Excluding the height of return air plenum of up flow unit and supply air plenum of down flow unit.