Fujitsu AUU7RLF Design & Technical Manual page 231

¢ Operating procedure for check run
CAUTION
Initiate check run after more than 12 hours after the power supply is connected.
NOTE: Be sure that the indoor unit and outdoor unit are not operating before starting the check
run.
1. Press the "CHECK" switch for 3 seconds or more.
2. The number of indoor units (and the places) connected through the communication lines is dis-
played.
• If the displayed number of units (places) and the installed number of units (places) is the
same, proceed to step 3.
• If the displayed number of units (places) and the installed number of units (places) is not the
same, shut off the power and check whether the indoor and outdoor communication lines are
properly connected.
• If there is no operation for 1 minute, the LED will return to the original display. (POWER/
MODE LED: ON)
Example: When 4 indoor units (A to D) are connected
3. Press the "CHECK" switch for 3 seconds or more again. Check run is initiated.
• When check run is initiated, all LEDs from A to F will flash. (Preliminary operation)
• The LED for each indoor unit will switch off in order as check for each unit is completed.
NOTE: To interrupt the check run, press the "CHECK" switch.
Example: When 4 indoor units (A to D) are connected
14-1. Check run
CHECK
S W 2
POWER ERROR
MONITOR
MODE
A B C
(2-blink)
POWER ERROR
MONITOR
MODE
A B C
(2-blink)
- 225 -
D E F
D E F
14. Check and test