Engineering Bulletin
Heating / Cooling Lockout Setting
Disclaimer:
In order to perform some of these tests an electrical and/or refrigerant license is required. We strongly advise to check the Service manual for more detailed explanation. If you are not sure about these recommendations please contact us at 866-952-8324.
© 2015 Fujitsu General America, Inc.
# 054
4/23/15
by
Applies to models:
ASU9RLF, ASU9RLF1, ASU9RLS2, ASU9RLS3, ASU9RL2, ASU12RLF, ASU12RLF1, ASU12RLS2, ASU12RL2,
ASU15RLS, ASU15RLS3, ASU18RLB, ASU18RLF, ASU24RLF, ASU24RLB, ASU24RLXB, ASU30RLXB,
ASU30RLX, ASU36RLXB, ARU9RLF, ARU12RLF, ARU18RLF, AUU9RLF, AUU12RLF, AUU18RLF, AGU9RLF,
AGU12RLF, AGU15RLF
This new setting for the systems will allow you to lockout a specific mode. Once function is set the
wireless remote will still display the locked out mode, but indoor unit will beep twice and all LED lights
will flash to indicate function locked out.
You will find instructions on how to set this function on page 2.
Function Number Setting Value Setting Description
94
00 Heat pump*
01 Heating only
02 Cooling only
Fixed operation mode switching
Sets the operation mode to heat pump, heating only, or cooling only.
(* Factory setting)
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