24
8. Functions during start-up and servicing
8-1. Self-diagnosis
• It is possible to check past errors (error codes) stored in the indoor units.
1
Group selection
↓
2
Calling out the self-diagnosis screen
↓
3
Selecting the indoor unit address number for which self-diagnosis is to be performed
↓
4
Displaying error codes
↓
5
Resetting the error history
↓
6
Canceling the self-diagnosis
1
Group selection
• Select the group for which self-diagnosis is to be performed with the
and
GROUP
select switch.
NOTE: The group with the smallest group number from amongst all registered groups will be selected
when self-diagnosis is performed from the collective operation settings screen.
2
Calling out the self-diagnosis screen
• Switch across to the self-diagnosis screen and start the self-diagnosis process by pressing the
CHECK switch twice on the group operation setting screen.
COLLECTIVE
GROUP
CENTRALLY CONTROLLED
ON
˚C
NOT AVAILABLE
˚C
OFF
GROUP
CHECK
FILTER
CHECK MODE
TEST RUN
ADDRESS
Group operation settnig screen
Press the CHECK switch twice.
The smallest address number from the groups selected with
1
will be displayed.
COLLECTIVE
GROUP
CENTRALLY CONTROLLED
ON
˚C
NOT AVAILABLE
˚C
OFF
GROUP
CHECK
FILTER
CHECK MODE
TEST RUN
ADDRESS
Self-diagnosis screen
3
Selecting the indoor unit address number for which self-diagnosis is to be
performed
• Select the indoor unit address number for which self-diagnosis is to be performed with the use of the
and
temperature setting switch or the
external timer switch.
• If the indoor unit address number was selected with the
external timer switch, only the address
number of the indoor unit registered within the group selected in
1
will be selected.
Error code display area [
] (indoor unit address
number)
Alternately
[
] (error code)
↔
