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• If the check operation of the system is not performed with the test
run button pressed when the air conditioner is installed, the mal-
function code "U3" will be displayed. Refer to "9-2 Check opera-
tion" and perform the check operation of the system.
To Test Run Engineer
At the time of delivering the product to the customer after the test run
is completed, check that the EL. COMPO. BOX 1 lid, service lid
(inspection port lid), and the casings of the air conditioner are
mounted.
English
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