ACDHUM
ACDHUM - Air Change
Dehumidification Unit
First Australian made Dehumidification Unit
with air to air counterflow plate heat exchange
technology for temperature and humidity control.
DX Packaged Unit 200-5000 L/s
Chilled Water Unit 200-6000 L/s
• Heat exchange technology enables
pre-cooling and re-heating
• Higher efficiency and superior humidity control
over standard systems
• Achieves high COP
• Advanced Control System as standard
• Complete packaged design
• No return air required – 100% pressurisation
• Improves indoor air quality with up to 100% outdoor air
• Multi award winning Australian made, internationally
patented technology
Australian Innovation at its best
airchange.com.au
ACDHUM
Features & Benefits
Air Change Dehumidification Unit - DX or Chilled Water
The specialised ACDHUM range is designed to provide a more energy efficient and cost effective
solution for handling high latent loads.
The ACDHUM unit efficiently pre-conditions the temperature and humidity of the building fresh air supply.
The system is an ideal solution for situations where exhaust air cannot be recovered or used due to spill
air contamination, building pressure requirements or the practical constraint of recovering exhaust air.
Although it has been designed for hot and humid environments the ACDHUM is not only limited to that,
it can be effectively used all year round. During winter or mild temperatures the reverse cycle capability
provides efficient operation in heating mode.
Product Range
• DX Units from 200–5000L/s
• Chilled Water Units from 200–6000L/s
Backward curve fans
Built-in high
grade air filters
High static fan
*EC Plug Fan (standard
for ACDHUM1)
Advanced Control
System (BACnet
compliant) allows for
virtual plug and play
High efficiency
sensible only air to air
counter-flow plate heat
exchanger
Variable speed
compressors
Direct coupled
fan & motor
Scroll compressors
Upgraded compressors
for extra refrigeration
capacity
Standard
Optional
• Air to air counterflow plate sensible heat exchanger enables pre-cooling and re-heating
• Advanced Control System (BACnet compatible) as standard
• No return air required - 100% pressurisation
• High COP - average measurement of 6 in an onsite situation and 10 under peak design conditions
• Supplies 100% outdoor air for optimal IAQ
• Complies with Section J of BCA
• Complete packaged and factory tested units, with guaranteed performance
• Assists with earning Green Star points and improves NABERS energy rating
• Australian made, designed and patented award winning heat exchange technology
How it works
ines
The ACDHUM system will cool and dehumidify hot and humid outside air to the supply air set point
condition. In the cooling mode (see schematic below) outside air (1) is pre-cooled and dehumidified
as it passes through the air to air sensible heat exchanger (2). The air is further cooled and
dehumidified as it passes over the cooling coil (3) before being directed back through the counter
path of the heat exchanger. This supply air is reheated to supply air set point temperature (4) as it
passes back through the heat exchanger and its condition can be precisely trimmed via the bypass
damper. The main source of energy efficiency is attributed to the heat exchanger, as only fan energy
Project: Brigidine Street
Contact: James Aye
is required to pre
cool and reheat the supply air.
Psychrometric Chart
Psychrometric Chart
ACDHUM schematic
`
1
4
1
2
3
2
4
3
SA Fan
5
Bypass Damper
Modulating
Cooling Coil
Drain Tray
HX (Sensible) Bag Filter
Point
10
Sydney
Brisbane
15
20
25Location30
35
40
45 North 50Adeilade Melbourne Darwin
Dry Bulb Temperature (°C)
Queensland
Perth
1. Outside Air
Tdb/Twb (°C)
2. Air Off Heat Exchanger Cooling Tdb/Twb (°C)
35.5/24
33.5/26 34.5/27.5
25.5/21 23.5/23.5
40/23
37.5/21.5 34.5/28
40/23
25/25
29/20
26.5/18.5 27.5/25.5
29/20
Shane Carmichael
3. Air Off Coil Tdb/Twb (°C)
13/13
13/13
13/13
13/13
13/13
13/13
13/13
4. Supply Air After Reheat
Tdb/Twb (°C)
24/17
24/17
24/17
24/17
24/17
24/17
24/17
Aldi QLD & NSW
(various stores)
Consultant DMA
Professional Engineers
Brisbane City Hall, QLD
Consultant EMF Griffiths
Installation Siganto
and Stacey
ACDHUM2-W &
ACDHUM3-W
Multi Award Winning Technology
Coles, Cannon Hill, QLD
Consultant DMA Professional
Engineers
Installation Cool Air Solutions
ACDHUM2-D
ARBS Industry Awards “ESD Product” Winner 2010
AIRAH “Excellence in HVAC” Winner 2003 (Qld) & 2006 (National)
SEDA “Green Globe” Winner 2002 & 2003
Installations
Gold Coast University Hospital, QLD
Consultant SKM
Installation Hastie Air Conditioning
13 various ACDHUM6-W,
ACDHUM7-W & ACDHUM8-W
Technical Data
Dehumidification Units
Model No ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM ACDHUM
1-D
Nominal Flow Rate (L/s) 720
Supply Air
3-D
4-D
5-D
850
1100
1700
2400
< 150
External Static (Pa)
Compressor Capacity
2-D
6-D
7-D
3500 4000
< 200
1-W
2-W
3-W
4-W
5-W
6-W
7-W
8-W
720
850
1100
1700
2400
3500
4000
5000
< 250
26
51
67
88
114
140
165
< 150
< 200
< 250
N/A
Energy Reclaim# kWr)
Precool
9.5
11.3
14.6
22.6
31.8
46.4
53.1
9.5
11.3
14.6
22.6
31.8
46.4
53.1
66.3
Reheat
9.5
11.3
14.6
22.6
31.8
46.4
53.1
9.5
11.3
14.6
22.6
31.8
46.4
53.1
66.3
Total
19
22.6
29.2
45.2
63.6
92.8 106.2
19
22.6
29.2
45.2
63.6
92.8
106.2
112.6
48.4%
48.4% 48.4%
48.4%
Heat Exchanger Energy Savings 48.4% 48.4% 48.4% 48.4%
1
Compressor Type
48.4% 48.4%
48.4%
48.4% 48.4%
2
N/A
R407C
Refrigerant
48.4% 48.4%
N/A
3 Phase Direct Couple Motor/Fan - VSD Controlled
Fan Type
Volts/ph/Hz
415 / 3 / 50
Construction
50mm sandwich panel, 0.6mm clad colourbond both sides. UV treated polymer joiners for maximum strength, insulation and durability
Weight (kg)
640
975
1315
1743
2074
2536 2820
350
682
909
1211
1491
1834
2075
2424
# Data based on ambient 35.5°C/24°C and supply 24°C/17°C at nominal flow rate with 100% Outdoor Air.
Specifications subject to change without notice.
ACDHUM Schematic
A
B
A
B
C
C
ACDHUM - D
ACDHUM - W
Dehumidification Unit Dimensions
Size
ACDHUM - D
ACDHUM - W
A (Width) B (Depth) C (Height) A (Width) B (Depth) C (Height)
1
1450
2590
2325
950
2590
1860
2
2100
2490
2325
1600
2490
1990
3
2750
2490
2325
2250
2490
1990
4
3550
2490
2375
2900
2490
1990
5
4200
2490
2375
3550
2490
1990
6
4850
2490
2450
4200
2490
2040
7
5500
2490
2450
4850
2490
2040
8
N/A
N/A
N/A
5500
2490
2040
Contact Air Change engineers
for technical information or visit
www.airchange.com.au
airchange.com.au
Offices NSW 02 9531 4699 VIC 03 9482 1010 QLD 07 3891 1974
Distributors NTH QLD 07 4775 5222 SA/NT 08 8354 0088 WA 08 9367 3288 TAS 03 6344 6888 New Zealand +64 3 343 6184
Air Change products internationally patent protected I Refrigerant Trading Authorisation No: AU23586
ACDHUM 2012