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1-320
Case 2
Checking indoor unit addresses
(1)
When setting addresses in cooling mode
Turn ON the power to the indoor and outdoor units in all refrigerant systems.
(2) Short-circuit the mode-change pin at the outdoor unit where automatic address setting will be performed.
Short-circuit the AUTO ADD (CN041) pin.
(2) Short-circuit the AUTO ADD (CN041) pin.
Address setting is completed when the compressors stop and the LED indicators turn OFF.
<Approximately 15 minutes is required for 1 system.>
If address setting fails, LED 1 and 2 blink simultaneously and the alarm contents are displayed at the remote
controller.
(3) LED 1 and 2 blink alternately.
The compressors begin running in cool (or heat) mode.
Communication for automatic address setting begins, using the temperature changes at the indoor units.
(4) After 1 system is completed, be sure to short-circuit the AUTO ADD (CN041) pin at the other outdoor units to
complete automatic address setting in the same way for each system.
(5) Operation using the remote controller is now possible.
Press and hold the
(simple settings mode, “ALL” appears on the remote controller).
Then press the
button and select the indoor address.
button and
button for 4 seconds or longer
If the power cannot be turned ON separately for the indoor and outdoor units in each system:
The compressors must be run in order to automatically set the indoor unit addresses.
Therefore perform this step after completing the refrigerant tubing work.
Use the remote controller to check the addresses of the indoor units.
Be sure to use a jig for short-circuiting.
↓
When setting addresses in heating mode
↓
↓
↓
Indicating (marking) the indoor and outdoor unit combination number
Indicate (mark) the number after automatic address setting is completed.
(For the system addresses of the No. 1 outdoor unit, each time the
button is pressed, the address changes as follows: 1-1, 1-2)
The indoor unit fan operates only at the selected indoor unit.
Confirm the indoor unit address.
(For the system addresses of the No. 2 outdoor unit, the displayed addresses are 2-1, 2-2)
So that the combination of each indoor unit can be easily checked when multiple units are installed, ensure that
the indoor and outdoor unit numbers correspond to the system address number on the outdoor unit control PCB,
and use a magic marker or similar means which cannot be easily removed to indicate the numbers in an easily
visible location on the indoor units (near the indoor unit nameplates).
Example: (Outdoor) 1 – (Indoor) 1, 2
(Outdoor) 2 – (Indoor) 1, 2
(1)
These numbers will be needed for maintenance.
Be sure to indicate them.
(2)
Press the
button again to return to the normal remote controller mode.
SM830231-02̲Single̲欧州.indb 320
SM830231-02̲Single̲欧州.indb 320
2014/09/19 13:21:51
2014/09/19 13:21:51
