20
ENGLISH
TEMPERATURE SETTING BUT-
TON
Press to set temperature.
TIME NO. BUTTON
Selects time No. (Use in conjunction with the
schedule timer only).
CONTROL MODE BUTTON
Selects control mode.
TIMER ON BUTTON
Sets control mode and time No.
OPERATION MODE SELECTOR
BUTTON
See page 27.
INSPECTION/TEST OPERATION
BUTTON
Press to run inspection or test run.
CLEARING BUTTON FOR MAL-
FUNCTION CODE MEMORY
Press to clear malfunction code.
FILTER SIGN RESET BUTTON
See page 30.
“
” “
” DISPLAY (TIME TO
CLEAN AIR CLEANER ELEMENT/
TIME TO CLEAN AIR FILTER)
Displayed to notify the user it is time to clean
the air filter or air cleaner element of the group
displayed.
ZONE SETTING BUTTON
Turns zone setting mode ON/OFF.
SELECTOR BUTTON
Selects the group to be assigned to a zone.
ZONE OPERATION ON/OFF BUT-
TON
Finalizes the zone.
BUTTON FOR REFRIGERANT
SYSTEM DISPLAY
See page 30.
ZONE/GROUP CHANGEOVER
BUTTON
Switches display “zone” to display “group” or
vice versa.
ADVANCE/BACKWARD BUTTON
See page 21.
ON/OFF BUTTON
Starts/stops operation by zone.
18
19
20
21
22
23
24
25
(Notes)
1. Please note that all the displays in the figure appear for explanation purposes or when the cover is open.
2. If the unit is used in conjunction with other optional central controllers, the OPERATION LAMP of the unit
that is not under operation control may light up and go out a few minutes behind schedule. This shows
that the signal is being exchanged, and does not indicate any failure.
26
27
28
29
30
31
32
33
