Hitachi Econofresh - Page 197

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