15. Checking the Indoor Unit Addresses
This is done using the remote controller.
If a remote controller is connected to each indoor unit, the address is displayed at the remote controller as the "unit number".
If a remote controller is not connected to each indoor unit, follow the procedure below and use the remote controller to operate
each indoor unit, one at a time, in fan mode to check the address of each.
<Checking addresses by operating units in fan mode>
(1) Press the CHECK button and the timer time
switches the remote controller to address-change mode.
(2) Select the outdoor unit refrigerant system (outdoor unit address).
Use the UNIT button and the FLAP button to select the refrigerant system, then press the SET button to confirm it.
(UNIT = UP button FLAP = DOWN button)
(3) Check the indoor unit address.
When the SET button is pressed in step (2), the indoor unit corresponding to the address displayed (flashing) on the remote
controller begins operating in fan mode.
Find and check the indoor unit that is operating.
(4) Display of the address number
After checking the operation of the indoor unit, display the address number in a prominent position.
(This will be required later for maintenance.)
(5) Select the address of the indoor unit with the UNIT button sequentially for the blast operation.
Conduct the operation of (4).
(6) After checking the addresses of all indoor units, press the CHECK button once return the remote controller to normal
mode.
16. Changing the Indoor Unit Addresses (If Necessary)
This is done using the remote controller.
Changing the addresses
(1) Follow the step (1) and (2) in Section 15 in order to select an outdoor unit refrigerant system and press the SET button to
confirm it.
(2) Select the indoor unit.
Use the UNIT button to select the indoor unit for the address change.
(3) Select the desired address.
Press the timer time
(4) Press the SET button to confirm the address change.
(5) Repeat steps (2) through (4) to change addresses within the same refrigerant system.
(6) To make changes to the indoor unit addresses in the next refrigerant system:
Press the CHECK button to return to address-change mode.
Use the UNIT button and FLAP button to select the next refrigerant system, then repeat steps (2) through (4).
(7) When address changes are completed, press the CHECK button twice.
The remote controller returns to normal mode.
Note: Returning from the status in (3) to the status in (2) (cancel function)
From the status in (3), press the CANCEL button without pressing the SET button.
The change cannot be canceled after the SET button has been pressed.
Next, press the CHECK button to return from address-change mode to normal mode.
button simultaneously. (Press and hold for at least 4 seconds.) This
and
buttons to select the desired address.
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