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Home > Products > Rooftop Packaged Unit > Free Cooling Rooftop Packaged > Free Cooling Ducted Rooftop Packaged Air Conditioner
Free Cooling Ducted Rooftop Packaged Air Conditioner
Free Cooling Ducted Rooftop Packaged Air Conditioner
Free Cooling Ducted Rooftop Packaged Air Conditioner
  • Free Cooling Ducted Rooftop Packaged Air Conditioner
  • Free Cooling Ducted Rooftop Packaged Air Conditioner
  • Free Cooling Ducted Rooftop Packaged Air Conditioner

Free Cooling Ducted Rooftop Packaged Air Conditioner

    Unit Price: USD 1260 / Set/Sets
    Payment Type: L/C,T/T,Western Union
    Incoterm: FOB,CFR,CIF
    Min. Order: 1 Set/Sets
    Delivery Time: 30 Days

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Basic Info

Model No.: RTU12~RTU300

Type: Chiller

Air Tube Material: Galvanized Sheet

Corrosion Durability: Higher

Operating Voltage: 380/400 VAC

Noise Level: Low

Mounting: Floor Standing

Lifetime: 15~20 years

Certification: CE

Condition: New

Application Fields: Mechanical Engineering, School, Airport, Shopping Mall, Industrial Buildings

Refrigerant: R410A/R407c/R134A/R22

Cooling Capacity: 12kw-300kw

Compressor Brand: Copeland/Danfoss/Panasonic/Daikin

Electric Parts: Schneider Brand

Refrigerant Valves: Emerson/Danfoss Brand

Controller: Syslab Brand Or Siemens PLC Controller(optional)

Power Supply: 380~415V, 440~460V, 50HZ/60HZ

Energy Recovery: Optional

Additional Info

Packaging: Plywood Casing or standard package suitable for sea and air transport

Productivity: 6000PCS/Year

Brand: Amrta or OEM

Transportation: Ocean

Place of Origin: China

Supply Ability: 500PCS/Month

HS Code: 8418612090

Port: Qingdao,Shandong,China

Product Description

Free Cooling save money. They bring in fresh, outside air for ventilation; and provide cool, outside air to cool your building. This is the preferred method of low ambient cooling. When coupled to CO2 sensors, economizers/free cooling of Rooftop Packaged Unit can provide even more savings by coupling the ventilation air to only that amount required. Economizers are available, installed and tested by the factory, with either enthalpy or dry--bulb temperature inputs. There are also models for electromechanical as well as direct digital controllers. Additional sensors are available as accessories to optimize the economizers. Economizers include gravity controlled, barometric relief which equalizes building pressure and ambient air pressures. This can be a cost effective solution to prevent building pressurization in the Air Conditioning industry.


Characteristics

01.Structure. Panels and frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
Direct expansion coils with condensate drain tray.
02. Hermetic compressor. High efficiency scroll compressor for the whole range, with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers. Ripple type acoustic insulation for compressor section, and thermal insulation for coil and fan section, low noise.
03.Centrifugal fan. Forward curve centrifugal fans for air treatment section and axial fans for condensation section. Front, side and underside air discharge of the treatment unit. High external pressure, long air supply distance.
04. Electric panel. Electric panel consists of breakers and contactors for compressors and fan motors, phase sequence relay and other necessary protection devices for the main components.
05. Easy operation line controller
Cooling/Heating/Auto
Error indication
Timing on/off
06. Optional

Economizer with fresh, return air dampers and fresh air hood

Free cooling function for low ambient temperature

Low ambient control device for operation of outdoor units at ambient temperatures from less than 20°C down to -10°C
BMS devices
T3 (Tropical climate)
Roof curb
Metal/aluminum filter
100% heat recovery
Evaporating section: double skin with 50mm polyurethane foam
Optional water heating coil
Metal or plastic mesh on condenser coil
Optional supply/return air configurations
Upgraded plug fan

G4 filter, plate and bag filter

07. Economizer and Free Cooling.

It is one of the most important features of this rooftop as it maximise seasonal efficiency by reducing the use of thermodynamic cooling in mid season.

Thermodynamic cooling can be replaced by Free Cooling when outdoor temperature is below the building set point saving up to 15% on annual energy consumption.
Rooftop units are supplied with economizer and fresh air hood to improve comfort through better fresh air management and allow energy savings with free cooling.
08. Exhaust air
Gravity exhaust damper
Gravity exhaust damper Installed with economizer assembly, gravity exhaust damper relief pressure when outside air is being introduced in the system. It is a cheap and smart way to avoid over pressure in a building.
Power exhaust fans
Installed with economizer assembly, it provides exhaust air pressure relief when high levels of fresh air are being introduced in the system.

Interlocked to run when return air dampers are being closed and supply air blower is in operation. The extraction fans run when outdoor air dampers are at least 50% open (adjustable). It is also overload protected. A gravity exhaust damper is supplied with this option to prevent air from entering the unit during shutdown. The power exhaust fans have been size to exhaust 50% of the nominal air flow of the unit.

Free Cooling Rooftop Packaged Unit

Technical Data

Model

RTU45

RTU50

RTU60

RTU75

RTU90

RTU105

Cooling capacity

kW

44.5

50

60

70

90

105

Heating capacity

kW

48.7

54.3

64

75.4

96.2

113.2

Power supply

380V / 3Ph / 50HZA

Cooling power input

kW

17

19.5

22.8

26.7

32.9

39.7

Heating power input

kW

15.6

18

21

24.8

30.4

36.7

Start current

A

168

186

175

199

197

266

Working current in cooling

A

31.7

35.6

39.9

48.3

61

70.6

Working current in heating

A

29.9

33.5

37.5

45.4

57.3

66.3

Throttle methods

Thermal expansion valve

Circuits

2

2

2

2

3

3

Refrigerant

R410A

Compressor

Type

Scroll type 380V / 3Ph / 50HZA

Qty

2

2

2

2

3

3

Condenser side

Condenser

Type

Al+copper tube

Axial fan

Qty

1

1

1

1

2

2

Drive

Direct drive

Motor power

kW

0.25

0.37

0.37

0.55

0.75

0.75

Air flow

m3 /h

4600

7800

7800

9000

12600

12600

Evaporator side

Evaporator

Type

Al+copper tube

Centrifugal fan

Qty

1

1

1

1

1

1

Motor power

kW

3

3

4

4

5.5

5.5

Air flow

m3 /h

7600

8500

10900

12500

16000

19500

Drive

Direct drive

Belt drive

External static pressure(Pa)

250

250

300

300

300

300

Filter

Aluminum frame filter G3

Noise level dB(A)

73

73

73

75

74

75

Dimension

L

mm

2268

2268

2298

2298

2878

2878

W

mm

1440

1440

1650

1650

2140

2270

H

mm

1167

1167

1400

1400

1964

1964

Weight

kg

750

770

830

860

1160

1350

* Performance values refer to the following conditions:
Cooling: room air temperature 27.0°C DB RH 50%, ambient air temperature 35°C;
Heating: room air temperature 20.0°C DB, ambient air temperature 7°C DB / 6°C WB.
** Noise level measured by adopting average value in the noise lab with background noise of 25 dB(A), at a distance of 1.5m high fan speed.

Siemens PLC Rooftop Packaged UnitEconomizer Rooftop Packaged Unit

Looking for ideal Free Cooling Rooftop Packaged Unit Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Rooftop Packaged with Free Cooling are quality guaranteed. We are China Origin Factory of Free Cooling Rooftop Air Conditioning. If you have any question, please feel free to contact us.

Product Categories : Rooftop Packaged Unit > Free Cooling Rooftop Packaged

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