Hitachi PC-ARF Technical Catalogue page 432

6 Building air conditioning controls
CSNET WEB (PSC-A160WEB1)
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Compatibility with Central Stations
PSC-A160WEB1 is compatible with PSC-A64GT , PSC-A32MN & PSC-A64S central stations.
By switching on the Pin 7 of the option dip-switch, PSC-A160WEB1 activates the compatibility with the central stations.
When all the system is set for control in central mode, orders input by CSNET-WEB have preference over those input
from Central Stations; if Central Station tries to send an order, CSNET WEB will overwrite the order and restore the state
configured in the CSNET WEB.
C A U T I O N
• When this function is enabled, CSNET WEB requires a Central Station to communicate with the units. Important H-LINK communica-
tion problems will occur if no unit in the group is controlled by a Central Station.
• At Central Station compatibility mode, CSNET WEB does not detect the RCS Sensor, so it will not be displayed on system status and
it will not be available for selection as an input on the auto cool/heat operation.
• There are some variables in system status like liquid or gas temperature that will only be displayed after a change in value. Those
values are only requested by CSNET WEB after the change of value, so right after starting CSNET WEB they will be displayed as 0
until their value changes.
H-Link II wiring for CS NET WEB and Central Station compatibility
PSC-A64GT
PSC-A32MN
CSNET WEB
(PSC-A160WEB1)
416 416
TCGB0106 rev.0 - 12/2014
H-Link II
Group
Group
One remote control switch
equals to one group
Group
Group
Group
One unit is also handled
NOT ALLOWED
as one group
Without remote control
switch
Outdoor unit
Indoor unit
Remote con-
trol switch
Group