English
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U4
UF
Transmission error (indoor unit – outdoor unit)
Wrong wiring between indoor and outdoor units or malfunction of the PC board
mounted on the indoor and the outdoor units.
U5
Transmission error (indoor unit – remote controller)
Transmission is improper between the indoor unit and the remote controlle
U8
Malfunction in transmission between main and sub remote controls.
(Malfunction in sub remote controller.)
UA
Miss setting for multi system
Setting is wrong for selector switch of multi-system. (see switch SS2 on the main
unit’s PC board)
UC
Central control address overlapping
UJ
Peripheral equipment transmission fault
CAUTION
•
Refer to “b. Items to be checked at time of delivery” on page 5 upon completion of the test run and make
sure that all the items are checked.
• If the customer’s interior work has not been finished on completion of the test run, explain the customer not
to operate the air conditioner. This is essential until the interior work is finished so as to protect the product.
Substances generated from paints and adhesives used for the interior work may contaminate the product if
the unit is operated.
When delivering the product to the customer after the test run is completed, check that the control box
lid, the air filter and the suction grille are mounted. In addition, explain to the customer regarding the
state (ON/OFF) of the power supply breaker.
To test run Contractors
