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Direct Expansion AHU
HVAC system air handing unit
  • HVAC system air handing unit
  • HVAC system air handing unit
  • HVAC system air handing unit
  • HVAC system air handing unit

HVAC system air handing unit

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  • Features
  • Technical Data
  • Application
  • Certification
Feature:
1, Complying with above China Standard, which is from ARI standard. ISO9001 and ISO14001  qualified.
2,  Choose best materials, main components are from China top brand or imported.
3, The modular casing design, easy interchanging each other. easy install,easy transport,easy maintaince.
4,  Unique no-cold-bridge design, improve the insulation and air tightness, total air leak rate ≤2.5%;
5,  With dynamic balanced double inlet Centrifugal fan, with good air dynamic features, and accurate working, high efficiency, low vibration, low noise etc.  
6, High efficient heat exchanger coil, ensure to provide the enough cooling capacity to the unit. And also high efficient breakwater panel is provided if required, water flow in coil ≤3×10-4kg/kg
7, Strong structure, good looking and permanent color.
8, Reasonable inside structure, with the suitable space for maintenance and cleaning.
9,  Casing sheet: Provide double-skin construction constructing Sandwich type comprising 0.5mm thick galvanized internal and external skins and with 30mm thick polystyrene insulation of minimum 45kg/m3 density. Good airproof material is use between the casing and the frame to reduce the rate of the air leak. 
   
The combined air handling untis are modular designed ,each modular can be used independently and can also work together and company with fan coil units to add refresh air. Not only reduce operation costs and energy saving, but also optimize air quality and create a congnitive indoor space to meet the human health requirements.

Unit characteristics

Model: GT-ZKW-( ) DX

20

30

40

50

65

80

100

Cooling capacity 1*

kw

10.1

15.3

20.3

25.5

32.3

38.6

52.0

Heating capacity 2*

kw

10.3

15.7

20.8

26.1

33.5

39.5

53.2

Air volume 3*

m3/h

2000

3000

4000

5000

6500

8000

10000

Static air pressure  3*

Pa

200

250

300

300

400

400

500

power

3N-380V-50Hz

Indoor unit

Supply air fan 3*

Type

Efficient centrifugal fan

kw

0.55

0.75

1.5

2.2

3.0

3.0

5.5

Chilled water coil 4*(option)

Type

Efficient copper tube and aluminum fin

Flow m3/h

1.7

2.6

3.5

4.4

5.6

6.6

8.9

Section length(mm)

300

300

300

300

300

300

300

Heater 5*

Type

Stainless steel tube electric heating/ steam heating coil/hot water heating coil

kw

6

9

12

18

24

24

30

Section length(mm)

300

300

300

300

400

400

400

Humidifier 5*

Type

Electrode type/steam/electrothermic type/wet film

kg/h

3

4

5

8

8

12

12

Section length(mm)

400

400

400

400

400

400

400

Filter 6*

Type

Primary filter G4(medium effect F8/ Nanocrystalline carbon filter

Noise

dB(A)

60

60

61

62

63

63

65

Overall dimension 7*

Length(mm)

1800

2000

2000

2100

2100

2200

2400

Width(mm)

730

1030

1030

1030

1140

1340

1340

Height(mm)

788

788

1115

1115

1115

1115

1420

Weight

kg

40

180

320

400

580

660

800

Outdoor unit

Model: GT-WL

10

15

20

25

35

40

55

Compressor A

Type

Hermetic scroll type (Fixed frequency system)

Qty

1

1

1

1

1

2

2

Input power A

kw

3.4

4.8

6.3

8.0

9.8

12.7

16.1

Compressor B

Type

Hermetic scroll type (Inverter system)

Qty

1

1

1

1

1

2

2

Input power B

kw

3.3

4.6

6.2

7.7

9.7

12.6

15.6

Refrigerant 8*

Type

R22/R407C/R410A

Mode

External balance type thermal expansion valve/electronic expansion valve

Noise 9*

dB(A)

63

63

64

64

65

65

67

Overall dimension

Length(mm)

850

850

980

980

980

1880

1880

Width(mm)

850

850

980

980

980

1880

1880

Height(mm)

1080

1080

1080

1080

1234

1080

1080

Weight

kg

130

135

150

180

220

280

320

Connection pipe size 10*

Liquid pipe(mm)

12.7(9.52)

12.7(9.52)

12.7(12.7)

15.88(12.7)

15.88(12.7)

15.88*2(12.7*2)

15.88*2(12.7*2)

Steam pipe(mm)

15.88(12.7)

19.05(15.88)

19.05(15.88)

28.6(22.23)

28.6(22.23)

22.23*2(19.05*2

28.6*2(22.23*2)


Note
1. Cooling condition: indoor dry bulb/wet bulb 27/19℃; outdoor dry bulb/wet bulb 35/24℃
2. Heating condition: indoor dry bulb/wet bulb 20/-℃; outdoor dry bulb/wet bulb 7/6℃
3. Air volume, pressure, power in the table is standard parameters. It can be separately designed according to customer`s requirements
4. Chilled water coil as optional parts, according to the customer site requirements configured to double cold source unit
5. Heater, humidifier, heat recovery device as optional parts, according to the customer requirements configured to the other forms
6. Unit standard uses G4 level filters, according to the customer requirements configured to the other forms
7. Unit length does not include the function section .Such as heating section, humidification section. Specific details please consult us.
8. Air cooled split type air conditioning unit without refrigerant leaving the factory, refrigerant models need to be indicated in the order
9. Noise data is measured 2m in front of the unit, 1.2m high, when cooling under the standard air volume.
10. Inside of bracket is R410A refrigerant type connection pipe diameter, the connection copper pipe between the indoor and outdoor unit should within 35 meters.
 
Application:
The units are widely used in the air system of many inductries like mechanical ,electronic, textile,medical,chemical,energy and foo inductries ,etc. the units are also ideal solution for restaurants, office buildings,hospitals,theaters,supermarkets and palaestra.
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