Hitachi RCI Service Manual page 197

6 Optional functions
Indication Input signal
Not set
00
Control by field-supplied
room thermostat
01
(cooling)
Control by field-supplied
02 room thermostat
(heating)
Function 1: remote on/off
03
of the unit (by contact)
Function 2: unit on (by
04
pulse)
185
SMGB0063 rev. 1 - 10/2010
Application
Not set
This signal controls the
unit through an external
thermostat.
N O T E
It can reduce summer
cooling problems in
certain applications
This signal controls the
unit through an external
thermostat.
N O T E
It can reduce problems
caused by indoor air
stratification.
This signal controls the
starting and stopping of
the system from a
remote location.
N O T E
It is extremely practical
in hotels and offices to
control the indoor
units from the building
management system.
This signal controls the
starting of the system
from a remote location.
N O T E
It is extremely practical
in hotels and offices to
control the indoor
units from the building
management system.
Remote control screen (input
signal)
Port
CN3
CN3
CN3
6
CN3
CN3