Fujitsu ASU7RLF1 Service Bulletin page 3

UTY-LNHUM
Entering the Function Setting Mode:
Press the Fan (Control) button, Set Temp.
simultaneously then release the Reset button to enter the function
setting mode.
Selecting the Function Number and Setting Value
1. Press the Mode button first then press the Set Temp.
buttons to select the function number. (Press the Mode
button to switch between the left and right digits.)
2. Press the Fan button to proceed to setting the value. (Press
the Fan button again to return to the function number
selection.)
3. Press the Set Temp.
(Press the Mode button to switch between the left and right
digits.)
4. Press the Timer Mode button and Start/Stop button, in the
order listed to confirm the settings.
5. Press the Reset button to cancel the function setting mode.
6. After completing the Function Setting, be sure to turn off
power to the outdoor disconnect for a minimum of one
minute and turn it on again.
UTY-RVNUM
Entering the Function Setting Mode:
1. Make sure the indoor unit is powered down and not running
otherwise you will be restricted from entering the Function
Settings menu.
2. From the monitor screen, press the Menu button twice.
3. Once at the submenu, press and hold the Screen Left and Screen
Right buttons for 5 seconds.
4. Select the Function Setting option from the list. From there you
will be in the Function Settings Menu and free to select function
number and setting values.
5. After completing the Function Setting, be sure to turn off power
to the outdoor disconnect for a minimum of one minute and turn
it on again.
UTY-RSNUM
Entering the Function Setting Mode:
1. Press both the Temp. Up and Down buttons
together for more than 5 seconds simultaneously. Then, shift to
Function Setting Mode.
2. Press the Temp. Up or Temp. Down button
the indoor unit number. Then, press the Fan button.
Function Number & Setting Number Setting
3. "Function Number" display blinks. Then, display Number by
pressing the Temp. Up or Temp. Down button.
4. When the "Setting Number" blinks, press the Fan button to set
the Setting number by pressing the Temp. Up or Temp. Down
( )( ).
button
5. Fix the setting by pressing the power button. (Data is transferred
to the indoor unit).
6. After completing the Function Setting, be sure to turn off power
to the outdoor disconnect for a minimum of one minute and turn
it on again.
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.
How to Enter Function Settings:
/
UTY-LRHUM
( )
and the Reset button
( )( )
( )( )
buttons to select the setting.
( )( )
and FAN
( )( )
and select
/
AR-REC1U AR-RED1U
Entering the Function Setting Mode:
Press the Powerful button, Set Temp.
simultaneously then release the Reset button to enter the
function setting mode.
Selecting the Function Number and Setting Value
( )( )
1. Press the Set Temp.
number. (Press the Min. Heat button to switch between the
left and right digits.)
2. Press the Powerful button to proceed to setting the value.
(Press the Powerful button again to return to the function
number selection.)
( )( )
3. Press the Set Temp.
(Press the Min. Heat button to switch between the left and
right digits.)
4. Press the Mode button and then the Start/Stop button, in
the order listed to confirm the settings.
5. Press the Reset button to cancel the function setting mode.
6. After completing the Function Setting, be sure to turn off
power to the outdoor disconnect for a minimum of one
minute and turn it on again.
/
UTY-RNBYU
Entering the Function Setting Mode:
( )( )
1. Press the Set Temp.
simultaneously for more than 5 seconds to enter the
function setting mode.
2. Press the Set Back button to select the indoor unit number.
3. Press the Set Time buttons to select the function number.
4. Press the Set Temp. buttons
value. The display flashes as shown to the right during
setting value selection.
5. Press the Timer Set button to confirm the setting. Press
the Set button for a few seconds until the setting value
stops flashing. If the setting value display changes or if "-
-" is displayed when the flashing stops, the setting value
has not been set correctly. (An invalid setting value may
have been selected for the indoor unit.)
6. Repeat steps 2 to 5 to perform additional settings. Press
the Set Temp. buttons
simultaneously again for more than 5 seconds to cancel
the function setting mode. In addition, the function setting
mode will be automatically canceled after 1 minute if no
operation is performed.
7. After completing the Function Setting, be sure to turn off
power to the outdoor disconnect for a minimum of one
minute and turn it on again.
/
AR-REG1U
( )
and Reset button
buttons to select the function
buttons to select the setting.
UTY-RNNUM
buttons and Fan button
( )( )
to select the setting
( )( )
and Fan button
Appendix (1)