Westinghouse WHU09DHA21S, Service Manual, Page: 49 / 97

Indoor unit parameter revision
1) Connect ing wire remote controller with indoor unit
Step 1: Removing the upper cover of the wired controller
N OTE :
Control board of the remote controller is placed on upper cover. Please protect it from being scratched during
removal and installation!
Step 2: Connecting wired controller with indoor unit
OPERATION
：
①
②
Hold down both “MODE” button and “ADD.FUNC.” button for 3 seconds, symbol and
parameter number blink at the same time.
Press“ ” “ ”button to adjust parameter number until “17” is displayed .
And press “ENTER”button to enter system parameter adaption st ate , symbol stop blinking, and
parameter number blink.
③
Select desired parameter code by pressing “ ”/ “ ”button following the table below, and press
“ENTER” button to confirm.
④
Select desired function code by pressing “ ”/ “ ”button, and press "ENTER" button to confirm.
确定
Wire remote controller
Connection cord of wired
controller
(to indoor unit)
Circuit board of wired controller
Upper cover of the wired controller
Lower cover of the
wired controller
Insert a normal screw driver into the
position, and gently rotate it. In this way,
the upper cover can be easily removed.
Screw driver
Indoor unit control board
2 ) Changing system parameter
marked with:wired
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4 8
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