IOM SYSVRF2 AHU BOX0620 20220209 134828067 20220209 140819162

17
4.1 Capacity Settings
4.2 Setting the Master/Slave AHU
Control Box
4.3 Address Settings of AHU
Control Box
4 FUNCTION SETTINGS
The capacity DIP switches for the AHU control box
should be set after the box is installed.
The capacity can be set through ENC1 and SW4-2. After
completing the settings, power off and then power on the
unit to apply the settings.
Each AHU control box in parallel connection
should undergo capacity settings.
NOTE
Table 4-1 Capacities of SW4-2 and ENC1
Capacity
(hp)
Capacity
(KW)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
0.8 hp
1.0 hp
1.2 hp
1.7 hp
2.0 hp
2.5 hp
3.0 hp
3.2 hp
3.6 hp
4.0 hp
4.5 hp
5.0 hp
6.0 hp
6.5hp
7.0hp
8.0 hp
10.0 hp
12.0 hp
14.0 hp
16.0 hp
20.0 hp
2.2
2.8
3.6
4.5
5.6
7.1
8.0
9.0
10.0
11.2
12.0
14.0
16.0
18.0
20.0
22.4
28.0
33.5
40.0
45.0
56.0
ON
1234
SW4-2
ON
1234
ENC1
0
1
BOX 90200
BOX 200360
BOX 360560
BOX 2290
1. If multiple AHU control boxes are connected in
parallel, the master/slave AHU control box needs to be
set through SW2-3 and SW2-4
SW2-3 and SW2-4 are 00: master
AHU control box(factory default)
SW2-3 and SW2-4 are 01: slave
AHU control box 1
SW2
ON
1234
SW2
ON
1234
SW2-3 and SW2-4 are 10: slave
AHU control box 2
SW2-3 and SW2-4 are 11: slave
AHU control box 3
SW2
ON
1234
SW2
ON
1234
SW1-3 and SW1-4 are 00: the
number of slave AHU control
boxes connected in parallel is 0
(factory default)
SW1-3 and SW1-4 are 01: the
number of slave AHU control
boxes connected in parallel is 1
Valid for the
master unit only
ON
1234
Valid for the
master unit only
SW1-3 and SW1-4 are 10: the
number of slave AHU control
boxes connected in parallel is 2
ON
1234
Valid for the
master unit only
SW1-3 and SW1-4 are 11: the
number of slave AHU control
boxes connected in parallel is 3
ON
1234
Valid for the
master unit only
2. When AHU control boxes are connected in parallel,
the number of slave AHU control boxes must be set via
SW1-3 and SW1-4.
Note: The number of slave AHU control boxes connected
in parallel can only be set from the main board of the
master AHU control box.
When powering-on for the first time, If the address is not
set, the wired controller will display fault E9.
The ODU can use auto-addressing to set the address for
an AHU control box which does not have an address.
If using manual setting,a wired controller is required to
set the address of the AHU control box.
Only the master AHU control box communicates with the
ODU. Therefore, only the address of master AHU control
box needs to be set via the wired controller.
Press and hold ▲ and ▼ on the wired controller for 8s to
enter the Address Settings page. If the AHU control box
has an address, the page displays the current address.
Otherwise, press ▲ and ▼ to change the address and
press ◎ to confirm and send the current address to the
AHU control box.
Figure 4-1
Note:
The address of the same system cannot be repeated.