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Automatic address setting from the outdoor unit (HW type)
(1) Turn on the indoor and outdoor unit power for refrigerant
system 1.
Press and hold the automatic address setting button
(black) for 1 second or longer at the outdoor unit where the
power was turned ON.
The compressor operates when the power is turned ON at
a different outdoor unit.
↓
Communication for automatic address setting begins.
↓
LED 1 and 2 on the outdoor unit control PCB blink
alternately, and turn OFF when address setting is
completed.
↓
(2) Next, turn ON the power only at the indoor and outdoor
units in a different system. Press the automatic address
setting button (black) on the outdoor unit.
↓
LED 1 and 2 on the outdoor unit control PCB blink
alternately, and turn OFF when address setting is
completed.
↓
Repeat the same procedure for each system and complete
automatic address setting.
↓
(3) Operation using the remote controller is now possible.
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) 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.
Big_PAC_eng.indb 67
Big_PAC_eng.indb 67
<Approximately 4 – 5 minutes are
required.>
10-26-3. Checking indoor unit addresses
Use the remote controller to check the addresses of the indoor
units. Press and hold the
seconds or longer (simple settings mode, "ALL" appears on the
remote controller). Then press the
indoor address.
(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.
10-26-4. 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.
10-26-5. Setting a wired remote controller as a sub remote
controller
Change the remote controller address connected on the reverse
side of the remote controller switch PCB from the Main position
to the Sub position.
Remote controller address connector
To Service Technicians
To display the sensor temperature:
To display the trouble history:
Press both
and
buttons on the
Press both
remote controller for more than 4 seconds
remote controller for more than 4 seconds
together.
together.
Change the sensor address (CODE NO.)
Change the alarm message:
with
/
(SET TEMP) buttons.
/
Select the UNIT NO. that you want to call
CODE NO.
with
button.
Press the
button to finish service mode.
Press the
mode.
Changing method for room
temperature sensor (from Indoor unit
RCU.Main
to RCU)
RCU.CK
On the remote controller, press
RCU.Sub
1
RCU
for more than 4 seconds.
RCU.ADR
TMNL.
Set CODE No.
2
(SET TEMP) button.
Set DATA from
3
To avoid an electric shock hazard,
with
WA R N I N G
Press
DO NOT touch any ter-
4
Finally, Press
minal on the Printed Cir-
cuit Board with a metal rod, a
screwdriver edge or bare hand
when power
is supplied.
67
button and
button for 4
button and select the
Fig. 10-25
Remote Controller (Main)
Checking remote controller
Remote Controller (Sub)
TIMER
TMNL.
and
buttons on the
(SET TEMP) buttons
(New) (Old)
button to finish service
+
+
at the same time
with
/
to
/
(TIMER) button.
Fig. 10-26
2009/08/26 16:33:26
2009/08/26 16:33:26
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