WaterCooled - Dunnairdunnair.com.au/au/.../Uploads/Inverter-water-cooled... · DWAI units use...

www.dunnair.com.au

WaterCooled

Inverter Water CooledAir Conditioners

Dunnair Quality Engineering SolutionsThe name Dunnair is synonymous with high quality products in the commercial air-conditioning industry. Beginning with Dunn Air Conditioning in 1961 and more recently, Dunnair International and Dunnair Australia, the company continues to be a leading supplier of air-conditioning products for the Australian market.

In 1994, the company was acquired by Multistack and renamed Dunnair International. In 2004, Ernest Ugazio acquired the sales and service department of Dunnair. This led to the company being divided into separate entities: Dunnair International and Dunnair Australia, the former focused on Multistack Chiller sales and spare parts; while the latter began design and development of a split ducted and rooftop packaged range.

The Inverter water cooled air conditioners shown in this brochure are part of Dunnair’s range of high quality units for every application. Dunnair has also become the first choice when individual engineering solutions are required. Fast-moving and responsive, Dunnair supplies made-to-measure HVAC solutions to a growing number of high profile developments across Australia.

Dunnair research and development plus a strict quality control program have been fundamental to our growth, success and reputation. Dunnair units are manufactured in accordance with strict quality control standards and are MEPS rated and developed for Australian conditions.

Range: Dunnair’s two modern factories manufacture 16 separate product lines and some 600 different models. Dunnair can supply most products the HVAC industry requires. This new product line of Inverter water cooled air conditioners is proof that the company is working continuously to improve its product range and efficiency.

Specialised Solutions: Dunnair will engineer and manufacture equipment to suit the application and building design. We will design and manufacture as required for the building, mining, transport and maritime industry. We employ mechanical engineers in all sales offices to support designers in achieving their requirements.

Our promise to our clients is Tell us what you need and we will work with you to deliver it.

With its head office in Melbourne, Dunnair has offices in New South Wales, Queensland, South Australia, Western Australia and Tasmania. Established 1961, Dunnair maintains a dedicated engineering and sales support staff waiting to assist you with technical and product information and provide valuable solutions for your project.

Dunnair will design, build and deliver HVAC equipment to meet the most stringent specifications and difficult applications.

03www.dunnair.com.au

>>General

>>Features

The Dunnair Inverter reverse-cycle packaged series provides a higher efficiency of our already efficient standard WPR packaged range, which are designed specifically to provide all-year round comfort to room occupants. Our units are efficient, designed to be operated by occupiers via individual control systems, avoiding costly centralised plant.

The inverter water-cooled range is an ideal choice for projects that need a large number of units such as high-rise offices or hotel buildings - where different zone temperature are required throughout the building. Our inverter technology will save power, take less time to reach desired temperature and oscillate closer to the desired temperature over fixed speed models.

1. DC Inverter Compressor

2. Electronic Expansion Valve

3. EC Fan (Option)

4. Tube In Tube Heat Exchanger

5. Reduced unit height

6. Stainless steel drip tray

7. BMS compatible (Modbus)

8. Blu-fin anti-corrosion coil protection

9. Powder coated galvanised steal panels

10. Pre-charged with R410a

11. Internal thermal acoustic insulation

12. Excellent C.O.P & E.E.R rating

13. High external static pressure

Soft start ensures lower start up current and associated lower energy consumption.This market leading product now provides a viable alternative to VRF systems. Our comprehensive range of inverter units from 4kW to 25kW allows all types of application providing a lower running cost throughout the entire life cycle of the unit.

TEMPERATURE

TIME

Inverter Air ConditionerNon-Inverter Air Conditioner

SET POINT

04 Serving the HVAC industry since 1961

>>Features>>General

The DUNNAIR DWAI Series represents a range of ducted, water cooled, packaged air conditioners designed to provide year round comfort to room occupiers.

The DWAI units are ideal for multi-unit installations such as high-rise offices or hotel buildings, where the flexibility of individual zone control is required.

Compact and reliable, these units can be installed above ceilings, or in other concealed spaces, saving valuable floor space and providing conditioned air direct to required locations.

DWAI Series units are designed to be used with simple duct layouts. To take maximum advantage of this feature, units should be located as close to the space to be air conditioned as acoustic criteria allows. Multiple small units, utilizing minimal duct lengths, prove more economical than a single large central ducted unit.

Designed also to suit different climates, the DWAI units are available in Reverse cycle.

In office buildings, a DWAI unit system can provide the ideal off-peak system for occupied areas when the main system is not running, e.g. night time, weekends, holidays.

DWAI unit systems can be designed to provide owner occupiers with individual control, thus avoiding large central plant room areas, e.g. in apartment buildings.

Refrigerants Each unit is factory charged with refrigerant R410A, which has zero Ozone depletion potential.

Air Coil Die formed plate type aluminium fins mechanically bonded to high efficiency inner grooved copper tubes.

Water CoilCopper tube in tube type with refrigerant flow in the outside tube. Designed to a maximum water pressure of 1500kPa (215psi).

FansForward curved double inlet fans in involute scrolls and fitted directly to a mounted motor. Speed tappings allow airflow selection to match external duct pressure.

ConstructionGalvanised steel construction, closed cell foam lined compressor and fan compartments, with an insulated and powder coated drain tray for complete moisture protection. The drain tray is easily removed for inspection and cleaning.

Air Filter (Standard)

A filter integrated return air spigot is available on all models. The filter is a washable polypropylene net type. Care should be taken, when locating each unit, that enough space is provided to enable the one-piece filter to be withdrawn to its full length from either side of the unit.

Compressor DWAI units use hermetically sealed high efficiency Toshiba inverter compressors.

Insulation

DWAI units are well insulated to minimise condensation and attenuate noise.


As an active market player in the commercial air conditioning industry, we understand that every project is unique. Standard manufactured units may not meet the requirements of your system design. Dunnair always welcome enquiries for special air conditioning equipment.

Available options are listed below:

• Stainless steel drip tray

• 50mm thick insulation

• VSD on supply air fan

• Higher ESP (external static pressure) up to 500pa

• 2 stages or more depending on size of the unit

• Belt drive instead of direct drive fan

• All copper coils

• BMS output/input connection.

Dunnair specialises in manufacturing equipment to suit the applications.

Units are fitted with a high pressure lockout protection. These protect the unit in the event of either water flow failure in cooling mode or fan failure in heating mode. Sensors protect against low air coil temperature and loss of refrigerant. Units include an anti-rapid cycle timer for compressor on/off protection.

DWAI reverse cycle units also have a low refrigerant temperature safety thermostat to protect against icing up of the water within the unit’s condenser on heating mode and a pump flow verification relay to protect individual units from a loss of water flow.

Convenient lockout contactor resetting is simply achieved by turning the power to the unit off and then on again, avoiding the need to gain access to each unit if the cause is failure of central water supply. Lockout protection will also reset when the thermostat switches on, or is switched to the dead zone.

Each compressor has internal overload protection.

The DWAI reverse cycle version has a low refrigerant temperature limit switch and a reverse cycle valve.

.

>>Optional Features >>Unit Protection


Flexible ConnectionFlexible Connection

Air Filter

Spring Mounting System

Unit

1m1m

Neoprene Vibration Isolation

25mm Insulation Lined Supply Air Duct

25mm Insulation Lined Return Air Duct

S Tray

P Tray

1. Ensure distance between two units is at least 2.5m.

2. The air velocity in the supply air duct should not be greater than 3–3.5m/sec.

3. The air velocity in the return air duct should not greater than 2–5m/sec.

4. Duct insulation should be at minimum of 25mm and be perforated aluminium lined for better sound absorption.

5. The minimum length of straight supply air duct between T pieces or 90° bends must be at least 5 times the diameter of the duct.

6. Dampers and grilles should not be installed closer than 3m from the air supply spigot of the unit.

7. Whenever possible insulate the area under the unit with suitable insulation to minimize sound travel downwards through the ceiling. Area to be insulated should be at least twice the size of the base of the unit.

8. The minimum length of the return air duct should be at least 2m. If this is not possible, introduce a bend in the duct design or install a sound attenuator duct.

9. Always install unit above unoccupied areas e.g. storerooms, toilets etc.

10. Always allow sufficient space around the unit for service. Dunnair units require a minimum 500mm free area on all sides.

11. Always install a secondary safety tray under the fan coil unit (supplied by mecharical contactor)

12. Install “P Trap ” to condensate drain outlet on fan coil unit.

13. Make sure drain has gradient to tundish

>>Noise Prevention

Safety Tray

P Trap


Drain Connections

Clear Plastic TubeTo Water Flow

Drain To Tundish

H=Air Static Pressure/10+20(mm)

50 – 100mm

6mm Air Vent

Ball Valve

Ball Valve

Union

Drain to Tundish(Optional)

AHU

2 Way Control Valueand Balancing Valve

AHU

6mm Air Vent

Ball ValveUnion

Ball Valve(Optional)

Drain to Tundish(Optional)

3 Way Control Valueand Balancing Valve

Ball Valve

>>Condensate Drain

>>Water Supply and Return


DWAI-04 HAB DWAI-06 HAB DWAI-08 HAB DWAI-10 HAB DWAI-12 HAB

Overall Size

Depth (mm) 445 445 555 555 555

Width (mm) 1127 1127 1430 1430 1430

Height (mm) 360 360 470 470 470

Weight (kg) 63 65 106 112 115

Spigot Sizes

Return Air Spigot (mm) 450 x 300 450 x 300 888 x 400 888 x 400 888 x 400

Supply Air Spigot (mm) 304 x 153 304 x 153 430 x 203 430 x 203 430 x 203

>>Inverter Water Cooled Packaged Unit - Dimensional Drawing

Inverter Water Cooled - Packaged Units (Horizontal)

Front view Side view

Top view

Rear view

* DWAI - 16HAB, DWAI - 20 HAB, DWAI - 25 HAB are available on request.

W

H

D

W

H

D

H

W


DWAI-04 HAB

DWAI-06 HAB

DWAI-08 HAB

DWAI-10 HAB

DWAI-12 HAB

DWAI-16 HAB

DWAI-20 HAB

DWAI-25 HAB

Total Cooling Capacity* (kW)4.1

(1.2-4.9)

6.2

(1.8-7.4)

8.0

(2.4-8.8)

9.8

(2.9-10.8)

11.5

(2.6-12.0)

15.0

(5.4-17.0)

20.0

(6.7-21.2)

25.0

(8.3-26.5)

Sensible Cooling Capacity (kW) 3.4 4.9 6.6 8.2 9.9 12.6 17.5 19.8

Heating Capacity** (kW)4.3

(1.2-5.0)

6.1

(1.5-7.2)

8.3

(2.1-9.2)

10.1

(2.3-11.0)

11.7

(2.6-12.2)

11.2

(7.1-17.2)

15.0

(9.2-20.3)

20.0

(12.2-26.6)

Rated Airflow (L/S) 236 260 434 445 528 780 1000 1150

Sound Pressure Level# 33.4 38.9 43.4 45.5 47.8 57.0 59.0 61.0

External Static Pressure (Pa) 100 120 150 150 150 150 150 180

Power 240V/50Hz/1Ph 415V/50Hz/3Ph

Electrical Input (Cooling) (kW) 1.08 1.62 2.19 2.6 3.1 4.2 5.5 6.9

Nominal Max Current (A) 4.2 6.7 9.5 10.9 13.0 12.6 15.7 19.7

E.E.R (Cooling) 3.80 3.82 3.64 3.77 3.71 3.57 3.64 3.62

Water Flow (L/s) 0.24 0.34 0.47 0.56 0.66 0.8 0.88 1.05

Water Coil Pressure Drop (kPa) 35 35 36 40 44 48 52 55

Water Connections

inch 1.0 1.0 1.25 1.25 1.25 1.5 1.5 1.75

mm 25.4 25.4 31.75 31.75 31.75 38.1 38.1 44.45

Dimension mm

Depth 445 445 555 555 555 700 700 700

Width 1127 1127 1430 1430 1430 1650 1650 1650

Height 360 360 470 470 470 700 700 700

Weight kg 63 65 106 112 115 160 185 205

* Entering air temp. @27/19°C and enter water temp. @30°C ** Entering air temp. @21DB and enter water temp. @20°C. # 1m from sound source with 1m insulated duct

>>Inverter Water Cooled Packaged Unit - Specifications Overview

Units are being reviewed

Packaged - Horizontal Units


>> Horizontal Water Cooled R410A

Specifications Overview

Air On (°C, WB)Total Cooling

Capacity

Sensible Cooling Capacity, Air On (°C,DB)

21.0 24.0 27.0 29.0 32.0

15.0 0.88 0.86 1.02 * * *

17.0 0.95 0.71 0.90 1.03 * *

19.0 1.00 0.56 0.77 1.00 1.17 *

21.0 1.06 0.60 0.84 1.02 1.22

23.0 1.12 0.43 0.59 0.78 0.99

Note: * means Sensible cooling capacity equals to Total cooling capacity

Air On (°C,DB) Heating Capacity Heat Absorption Capacity Input Power

16.0 1.02 1.04 0.92

18.0 1.01 1.02 0.97

21.0 1.00 1.00 1.00

24.0 0.98 0.96 1.07

27.0 0.97 0.93 1.14

Nominal Airflow % Total Cooling Capacity Sensible Cooling Capacity Heating Capacity

80 0.95 0.87 0.97

90 0.98 0.94 0.99

100 1.00 1.00 1.00

110 1.02 1.06 1.01

120 1.04 1.11 1.03

Cooling Capacity Correction Factor

Heating Capacity Correction Factor

Airflow Correction Factor

Note: Air on : Max 28 °C (DB) ,Min 15 °C (DB) / 15 °C (WB); EWT : Max 40 °C, Min 15 °C

Air on : Max 32 °C (DB) ,Min 20 °C (DB) / 15 °C (WB); EWT : Max 40°C, Min 20 °C

>>Water source heat pump unit performance correction table


Code Switch

Thermostat

Third partyBMCS system

A/C Unit PCB

Net Board

>>BMS Interface Module

>>Thermostat

> Heat/Auto mode (Reverse Cycle Systems only).

> Auto/High/Medium/Low fan speed selection.

> Temperature setting range from 16 °C to 30 °C.

> Room temperature display.

> Real time clock.


Performance

DWAI-04 HAB DWAI-06 HAB

DWAI-08 HAB DWAI-10 HAB

DWAI-12 HAB

High

Medium

Low

240

180

120

60

354 394 434 474 514

Exte

rnal

Stat

ic Pr

essu

rePa

scal

s

Includes DryCoil Static

Nominal Air Flow

High

Medium

Low

240

180

120

60

365 405 445 485 525

Exte

rnal

Stat

ic Pr

essu

rePa

scals

Includes DryCoil Stati c

Nominal Air Flow

High

Medium

Low

240

180

120

60

448 488 528 568 608

Exte

rnal

Stat

ic Pr

essu

rePa

scal

s


Nominal Air Flow

* DWAI - 16HAB, DWAI - 20 HAB, DWAI - 25 HAB are available on request.

High

Medium

Low

160

120

80

40

220 240 260 280 300

Exte

rnal

Sta

tic P

ress

ure

Pasc

als


Nominal Air Flow

High

Medium

Low

160

120

80

40

196 216 236 256 276

Exte

rnal

Sta

tic P

ress

ure

Pasc

als

Includes DryCoil Static

Nominal Air Flow

>>Inverter Water Cooled Packaged Unit - Fan Curves

Airflow (L/s) Airflow (L/s)


Airflow (L/s)



A Class: 33.4dB

Frequency (Hz) SPL (dB)

64 37.8

125 33.7

250 33.2

500 28.9

1000 27.5

2000 24.9

4000 18.3

8000 12.1

A Class: 38.9dB

Frequency (Hz) SPL(dB)

64 45.2

125 40.4

250 39.7

500 34.5

1000 32.2

2000 28.4

4000 25.2

8000 16.3

A Class: 43.4dB


64 48.5

125 47.1

250 40.3

500 35.5

1000 33.8

2000 30.6

4000 26.4

8000 18.5

DWAI-04 HAB

DWAI-06 HAB

DWAI-08 HAB

80dB

70dB

60dB

50dB

40dB

30dB

20dB

10dB

64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz0dB

80dB

70dB

60dB

50dB

40dB

30dB

20dB

10dB


80dB

70dB

60dB

50dB

40dB

30dB

20dB

10dB


>>Inverter Water Cooled Packaged Unit - Sound Pressure Curves

Packaged - Horizontal UnitsPackaged - Horizontal Units



A Class: 45.5dB


64 51.8

125 48.5

250 42.6

500 38.5

1000 34.6

2000 31.5

4000 26.8

8000 19.5

A Class: 47.8dB


64 52.6

125 48.1

250 42.6

500 38.1

1000 35.8

2000 32.4

4000 26.9

8000 18.6

80dB

70dB

60dB

50dB

40dB

30dB

20dB

10dB


80dB

70dB

60dB

50dB

40dB

30dB

20dB

10dB


DWAI-10 HAB

DWAI-12 HAB

* DWAI - 16HAB, DWAI - 20 HAB, DWAI - 25 HAB are available on request.# 1m from sound source with 1m insulated duct



DWAI4L DWAI6L DWAI8L

Overall Size

Depth (mm) 540 540 575

Width (mm) 520 520 586

Height (mm) 1290 1290 1450

Weight (kg) 85 90 105

Spigot Sizes (mm)

Return Air Spigot 380 x 350 380 x 350 420 x 611

Supply Air Spigot 304 x 153 304 x 153 358x 203

DWAI10L DWAI12L

Overall Size

Depth (mm) 575 575

Width (mm) 586 646

Height (mm) 1450 1549

Weight (kg) 110 125

Spigot Sizes (mm)

Return Air Spigot 420 x 611 480x 711

Supply Air Spigot 358x 203 358 x 203

>>Inverter Water Cooled Packaged Unit - Dimensional Drawing

Inverter Water Cooled - Packaged Units (Vertical)


Top view

Water InR/A

S/A

Water Out

Drain Connections

Filter

Access Panel

Access Panel

HP

LP

W D

D

W

H H



DWAI4L DWAI6L DWAI8L DWAI10L DWAI12L

Total Cooling Capacity* (kW) 4.1 6.2 8.3 9.5 11.5

Sensible Cooling Capacity (kW) 3.4 5.2 6.6 7.6 9

Heating Capacity** (kW) 4.3 6 7.8 10.1 11.7

Rated Airflow (L/s) 236 258 444 444 527

Sound Pressure Level# (dB) 42 45 47 47 47

External Static Pressure (Pa) 100 120 150 150 160

Power 240V/50Hz/1Ph

Electrical Input (Cooling) (kW) 1.12 1.63 2.2 2.65 3.1

Nominal Max Current (A) 7.5 11 13 15 16

E.E.R (Cooling) 3.6 3.8 3.8 3.6 3.7

Water Flow (L/s) 0.24 0.34 0.39 0.5 0.66

Water Coil Pressure Drop (kPa) 38 38 40 40 40

Water Connections

inch 3/4 3/4 1 1 1

mm 19.05 19.05 25.4 25.4 25.4

Dimension mm

Depth 540 540 575 575 575

Width 520 520 586 586 646

Height 1290 1290 1450 1450 1549

Weight Kg 85 90 105 110 125


>>Inverter Water Cooled Packaged Unit - Specifications Overview

Packaged - Vertical Units


Performance

DWAI4L DWAI6L

DWAI8L DWAI10L

DWAI12L

High

Medium

Low

160

120

80

40

196 216 236 256 276

Exte

rnal

Sta

tic P

ress

ure

Pasc

als

Coil Static

Nominal Air Flow

High

Medium

Low

180

140

100

80

218 238 258 278 298

Exte

rnal

Sta

tic P

ress

ure

Pasc

als


Nominal Air Flow

High

Medium

Low

240

180

120

60

364 404 444 484 524

Exte

rnal

Sta

tic P

ress

ure

Pasc

als


Nominal Air Flow

High

Medium

Low

240

180

120

60

364 404 444 484 524

Exte

rnal

Sta

tic P

ress

ure

Pasc

als


Nominal Air Flow

High

Medium

Low

240

180

120

60

448 488 528 568 608

Exte

rnal

Sta

tic P

ress

ure

Pasc

als


Nominal Air Flow

>>Inverter Water Cooled Packaged Unit - Fan Curves



Airflow (L/s)

Packaged - Vertical Units Packaged - Vertical Units


A Class: 42.5dB


64 36.8

125 43.0

250 42.4

500 39.4

1000 37.2

2000 35.6

4000 27.2

8000 22.3


DWAI4L

A Class: 45.5dB


64 50.0

125 46.9

250 45.3

500 39.4

1000 38.3

2000 34.9

4000 27.1

8000 22.2

DWAI6L

A Class: 47dB


64 50.6

125 47.1

250 45.0

500 43.1

1000 41.7

2000 36.0

4000 27.9

8000 20.2

DWAI8L

80dB

70dB

60dB

50dB

40dB

30dB

20dB

90dB

64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz

80dB

70dB

60dB

50dB

40dB

30dB

20dB

10dB64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz

80dB

70dB

60dB

50dB

40dB

30dB

20dB


Packaged - Vertical Units



A Class: 52dB


64 54.7

125 48.6

250 46.8

500 43.4

1000 41.8

2000 39.8

4000 32.6

8000 26.2

DWAI10L

A Class: 54dB


64 57.9

125 55.1

250 54.2

500 45.8

1000 41.6

2000 38.1

4000 28.1

8000 22.6

DWAI10L

80dB

70dB

60dB

50dB

40dB

30dB

20dB


80dB

70dB

60dB

50dB

40dB

30dB

20dB


# 1m from sound source with 1m insulated duct

Packaged - Vertical Units Packaged - Vertical Units


Inverter Water Cooled - Split Ducted Units

>>Inverter Water Cooled Split Ducted Unit - Dimensional Drawing

DWAIS4 DWAIS6 DWAIS8 DWAIS10 DWAIS12

Overall Size WxDxH (mm)

Indoor 920x570x270 920x570x270 920x520x270 1140x660x270 1200x750x300

Outdoor 640x451x385 640x451x385 670x550x520 670x550x520 670x550x520

Weight (Kg)

Indoor 25 25 29 36 43

Outdoor 45 48 53 58 62

Spigot Sizes

Return Air Spigot 787x233 787x233 1065x265 1065x265 1065x265

Supply Air Spigot 713x178 713x178 965x203 965x203 965x203

Outdoor

Front view

Top view

Side view

Indoor

Top view


W D

W

D

H H

H

W

D

H

W

D


DWAIS4 DWAIS6 DWAIS8 DWAIS10 DWAIS12

Total Cooling Capacity*(kW) 4.3 6.2 8.0 9.8 11.4

Sensible Cooling Capacity (kW) 3.3 4.2 6.6 8.2 8.4

Heating Capacity** (kW) 5.2 7.1 8.7 11.2 13.2

Rated Airflow (L/s) 252 327 370 470 540

Sound Pressure Level dB(A)

Indoor 30.7 31.4 33.6 35.4 36.3

Outdoor 33.4 34.4 46.2 48.2 49.2

External Static Pressure (Pa) 90 90 160 160 170

Power 240V.1 Ph.50Hz

Electrical Input (Cooling) (kW) 1.14 1.62 2.17 2.64 3.08

Nominal Max Current (A) 4.84 7.1 13 16 16

E.E.R (Cooling) 3.77 3.82 3.69 3.71 3.70

Water Flow (L/s) 0.29 0.41 0.40 0.5 0.52

Water Coil Pressure Drop (kPa) 35 35 36 40 45

Water Connections

inch 0.75 0.75 1.25 1.25 1.25

mm 19.05 19.05 31.75 31.75 31.75

Dimension mm WxDxH

Indoor 920x570x270 920x570x270 920x520x270 1140x660x270 1200x750x300

Outdoor 640x451x385 640x451x385 670x550x520 670x550x520 670x550x520

Weight KgIndoor 25 25 29 36 43

Outdoor 45 48 53 58 62


>>Inverter Water Cooled Split Ducted Unit - Specifications Overview

Split Ducted Units


Performance

DWAIS4 DWAIS6

DWAIS8 DWAIS10

DWAIS12

>>Inverter Water Cooled Split Ducted Unit - Fan Curves

High

Medium

Low

160

120

80

40

196 216 236 256 276

Exte

rnal

Sta

tic P

ress

ure

Pasc

als

Nominal Air Flow

High

Medium

Low

180

140

100

80

218 238 258 278 298

Exte

rnal

Sta

tic P

ress

ure

Pasc

als

Nominal Air Flow

High

Medium

Low

240

180

120

60

364 404 444 484 524

Exte

rnal

Stat

ic Pr

essu

re

Pasc

als

Includes Dr yCoil Static

Nominal Air Flow

High

Medium

Low

240

180

120

60

364 404 444 484 524

Exte

rnal

Stat

ic Pr

essu

rePa

scals

Nominal Air Flow

High

Medium

Low

240

180

120

60

448 488 528 568 608

Exte

rnal

Stat

ic Pr

essu

rePa

scal

s

Nominal Air Flow



Airflow (L/s)

Split Ducted Units


>>Inverter Water Cooled Split Ducted Unit - Sound Pressure Curves


64 32.2

125 30.7

250 27.3

500 23.2

1000 21.8

2000 20.7

4000 13.1

8000 10.8

DWAIS4

64Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB


64 37.4

125 33.4

250 32.5

500 29.5

1000 27.2

2000 26.4

4000 17.2

8000 12.3


64 33.2

125 31.4

250 28.3

500 24.6

1000 23.4

2000 22.4

4000 13.2

8000 11.3


64 38.2

125 34.4

250 33.5

500 29.5

1000 28.2

2000 27.4

4000 18.2

8000 12.3

Indoor A Class: 30.7dB

Outdoor

DWAIS6 Indoor A Class: 31.4dB

Outdoor64Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz

10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB

64Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB

64Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dBA Class: 33.4dB

A Class: 34.4dB

Split Ducted Units Split Ducted Units




64 49.2

125 46.2

250 41.5

500 35.1

1000 33.2

2000 31.4

4000 26.2

8000 18.3

DWAIS8



64 36.3

125 33.6

250 31.5

500 27.8

1000 25.5

2000 23.7

4000 16.8

8000 13.1

Outdoor


64 52.4

125 48.2

250 43.5

500 37.1

1000 35.2

2000 33.4

4000 28.2

8000 19.2

DWAIS10


10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB

64Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz

10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB


A Class: 33.6dB

10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB


Split Ducted Units




64 38.3

125 35.4

250 33.3

500 29.4

1000 27.3

2000 25.3

4000 17.8

8000 14.2

Outdoor


64 53.2

125 49.2

250 43.5

500 37.1

1000 35.2

2000 33.4

4000 28.2

8000 19.3

DWAIS12



64 39.4

125 36.3

250 34.5

500 30.5

1000 28.2

2000 26.4

4000 19.2

8000 14.3

Outdoor

A Class: 35.4dB

10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB


10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB


10dB

20dB

30dB

40dB

50dB

60dB

70dB

80dB


A Class: 36.3dB

# 1m from sound source with 1m insulated duct

Split Ducted Units Split Ducted Units


DWAI-04 HAB - DWAI-12 HAB

DWAI4L - DWAI12L

>>Wiring Diagram Single Phase

27www.dunnair.com.auNote: Water and air flow switches supplied by installer.

DWAIS4 - DWAIS12

>>Wiring Diagram Split Ducted Units

www.dunnair.com.au

1115v1

Dunnair (Aust) Pty Ltd supports a policy of continuous product improvement. Therefore specification and designs are subject to change without prior notice. Dunnair (Aust) Pty Ltd accepts no responsibility for possible errors in Catalogues, brochures and other printed material.

DUNNAIR (Aust) Pty Ltd

Head Office: 140 Bernard Street, Cheltenham VIC 3192 p 03 8586 8200 f 03 8586 8201 e [email protected] w www.dunnair.com.au

Dunnair New South Wales: p 02 9674 1577 f 02 9674 1588 e [email protected]

Dunnair SA & NT: p 08 8240 2888 f 08 8240 2777 e [email protected]

Dunnair Western Australia: p 08 9418 2444 f 08 9418 2100 e [email protected]

New Zealand (agent): p +64 9 582 1012 e [email protected]

Dunnair Victoria: p 03 9558 7001 f 03 9551 1644 e [email protected]

Dunnair Queensland: p 07 3890 8796 f 07 3890 8642 e [email protected]

Dunnair Tasmania: m 0418 756 643 p 03 6425 3531 e [email protected]

Contact: Mr Jeff He

Shanghai:p: +86 158 8806 3726 e: [email protected]: Ms Shelly Xiong

Thailand:

P: +66 8 7074 2965

E: [email protected]: Mr Giuseppe Di Martino

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