INDOOR UNIT CONTROL CIRCUI
T
(Cont
i
nued)
12
Item
HA control
Overview of specifications
(1) When connected to a remote control system (tele-control or
remote on/off interface), operation ON/OFF can be controlled by
the HA signal input.
(2) Outputs operation ON/OFF status to the HA output terminal.
(3) HA signal input/output specifications conform to the JEMA
standard.
Remarks
A connector (separately
available) is required
when using the HA
terminal CH61 for remote
ON/OFF control.
When group operation is
in use, connect the
connector to either header
or follower indoor unit.
13
(1) Transmits filter replacement signal to remote controller for
indication on the LCD when accumulated operation hours of
indoor unit fan exceeds the specified time (150 hours).
(2) Clears accumulation timer upon receiving the filter reset signal
from remote controller. At this time, when the specified time has
already passed, the accumulated time is reset and the filter sign
disappears from the LCD.
Filter sign
indication
(unavailable for
wireless type)
“FILTER” lamp ON
– 23 –
NO.
