Table of Contents
Advertisement
Case 2
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.
(1) Turn ON the power to the indoor and outdoor units in all refrigerant systems.
When setting addresses in cooling mode.
2
(2) Short-circuit the mode-change pin at the outdoor unit where automatic address setting will be performed.
Then press the automatic address setting button (black).
When setting addresses in heating mode
(2) Press the automatic address setting button (black) at the outdoor unit where automatic address setting will be
performed.
(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.
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.
(4) After 1 system is completed, be sure to press the automatic address setting button (black) 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.
2-26-3. Checking indoor unit addresses
Use the remote controller to check the addresses of the indoor units.
Press and hold the
mode, "ALL" appears on the remote controller).
Then press the
(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, ...)
Press the
button again to return to the normal remote controller mode.
2-26-4. Indicating (marking) the indoor and outdoor unit combination number
Indicate (mark) the number after automatic address setting is completed.
(1) 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...
(2) These numbers will be needed for maintenance. Be sure to indicate them.
2-26-5. Remote controller setting mode
To set the remote controller main/sub setting or
change the sensor, follow the steps below.
(1) Press both
controller for more than 4 seconds together.
(2) Select CODE No. with
(3) Change DATA with
(4) Press
. Finally, press
* DATA is memorized in the RCU.
(DATA setting will not be changed even when the
power is turned off.)
* Make sure to set [Normal] for RCU. CK.
button and
button for 4 seconds or longer (simple settings
button and select the indoor address.
and
buttons on the remote
/
( ) buttons.
/
(TIMER) buttons.
.
CODE
ITEM
ITEM
RCU. Main/Sub
Clock display
RCU. CK
Room temperature
sensor
2-26
Fig. 2-25
DATA
Sub
Main
12 hours
24 hours
(AM/PM)
RCU. CK
Normal
Main unit
RCU
Hide quick links:
Advertisement
Table of Contents
