6 Building air conditioning controls
CSNET Manager LT/XT
TCGB0106 rev.0 - 12/2014
519519
6
6.2.2.5 H-LINK
HC-A64NET is compatible with the H-LINK 2 and the old version called H-LINK (H-LINK 1) units.
Connection of both H-LINK 1 and H-LINK 2 units in the same H-LINK unit is possible considering the unit limitations and
addressing.
H-LINK 2 number of connectable devices is up to a maximum of 200 devices in the H-LINK 2 line. A CSNET WEB, an
Indoor Unit, an Outdoor Unit, a HC-A64NET or other devices with H-LINK address are considered as a device.
NOTE
• CSNET Manager is not considered as an H-LINK device.
• PC-A1IO, KPI or DX-Kit count as a normal indoor unit.
When there is a central control device like CSNET Manager, the maximum number of total units (indoor and outdoor units)
for only 1000 meters of H-LINK line is shown on the following table:
Maximum number
Outdoor units 64
Indoor units 160
Units (outdoor and indoor) 176
H-LINK devices 200
H-LINK line length could be up to 1000 meters, they could be increased to 5000 meters using up to 4 PSC-5HR. Each of
them adds 1000 meters to the line, affecting the quantity of indoor unit that can be connected to the same H-LINK.
Each H-LINK line repeater (PSC-5HR) counts as 16 indoor units. The following table summarize the affection of the PSC-
5HR to the indoor and outdoor unit maximum number.
Number of PSC-5HR Maximum length of H-LINK Maximum number of indoor and outdoor units
0 1000 meters 176
1 2000 meters 160
2 3000 meters 144
3 4000 meters 128
4 5000 meters 112
Therefore, considering the previous maximums and the number of PSC-5HR, the maximum number of indoor units with
one central control, on that case CSNET WEB, is shown on the following table and graphic.
1 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
0 PSC-5HR
64 160 160 160 160 156 152 148 144 140 136 132 128 124 120 116 112
1 PSC-5HR
64 156 152 148 144 140 136 132 128 124 120 116 112 108 104 100 96
2 PSC-5HR
64 140 136 132 128 124 120 116 112 108 104 100 96 92 88 84 80
3 PSC-5HR
64 124 120 116 112 108 104 100 96 92 88 84 80 76 72 68 64
4 PSC-5HR
64 108 104 100 96 92 88 84 80 76 72 68 64 60 56 52 48
0
20
40
60
80
100
120
140
160
Indoor Units
Maximum Indoor Unit Quantity
0 PSC-5HR
1 PSC-5HR
2 PSC-5HR
3 PSC-5HR
4 PSC-5HR
Indoor units
Maximum indoor units quantity
Outdoor units
The maximum number of Indoor units connectable to a HC-A64NET is 64, and for the outdoor units are 64.
Note that CSNET Manager connected to a PSC-A160WEB1 can control up to 160 units. Connecting 8 PSC-A160WEB1 to
one CSNET Manager we can get the maximum number of connectable units of 1280.
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