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Mini VRF SYSTEM
Address Settings
3. Auto Address Setting
1
1-11
NOTE
Display details of LEDs 1 and 2 on the outdoor unit control PCB
(
: ON
: Blinking
: OFF)
LED 1
LED 2
Display meaning
After the power is turned ON (and automatic
address setting is not in progress), no
communication with the indoor units in that
system is possible.
address setting is not in progress), no
communication with the indoor units in that
system is possible.
After the power is turned ON (and automatic
address setting is not in progress), 1 or more
indoor units are confirmed in that system;
however, the number of indoor units does
not match the number that was set.
address setting is not in progress), 1 or more
indoor units are confirmed in that system;
however, the number of indoor units does
not match the number that was set.
Automatic address setting is in progress.
Alternating
Automatic address setting completed.
At time of automatic address setting, the
number of indoor units did not match the
number that was set.
number of indoor units did not match the
number that was set.
(when indoor units
are operating) indication appears on the
display.
display.
Simultaneous
Refer to Table of Self-Diagnostic Functions
and Description of Alarm Displays.
and Description of Alarm Displays.
Alternating
indicates that the solenoid is fused or that there
is a CT (current detection circuit) failure (current is
detected when the compressor is OFF).
Remote controller display during automatic setting
is blinking
3-3. Display during automatic address setting
On outdoor unit PCB
* Do not short-circuit the automatic address setting pin (CN-A.ADD) again while automatic address
setting is in progress.
Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn OFF.
*
*
*
When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF.
LED 1 is D302. LED 2 is D303.
If automatic address setting is not completed successfully, refer to the table below and correct
the problem. Then perform automatic address setting again.
LED
1
2
Blink alternately
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Mini VRF SYSTEM
Address Settings
1
3. Auto Address Setting
1-12
3-4. Request concerning recording the indoor/outdoor unit combination Nos.
After automatic address setting has been completed, be sure to record them for future reference.
List the outdoor main unit system address and the addresses of the indoor units in that system in an easily visible location (next
to the nameplate), using a permanent marking pen or similar means that cannot be abraded easily.
Example: (Outdoor) 1 - (Indoor) 1-1, 1-2, 1-3… (Outdoor) 2 - (Indoor) 2-1, 2-2, 2-3…
These numbers are necessary for later maintenance. Please be sure to indicate them.
3-5. Checking the indoor unit addresses
Use the remote controller to check the indoor unit address.
<If one indoor unit is connected to one remote controller>
1.
button and
button for 4 seconds or longer
(simple settings mode).
2.
remote controller.
(Only the address of the indoor unit that is connected to the remote
controller can be checked.)
3.
Press and hold the
The address is displayed for the indoor unit that is connected to the
Press the
button again to return to normal remote controller mode.
<If multiple indoor units are connected to one remote controller
(group control)>
(group control)>
1.
button and
button for 4 seconds or longer
(simple settings mode).
2.
3.
button.
4.
the remote controller. Check that the fan of that indoor unit starts and
that air is discharged.
5.
button again and check the address of each indoor
unit in sequence.
6.
Press and hold the
“ALL” is displayed on the remote controller.
Next, press the
The address is displayed for 1 of the indoor units which is connected to
Press the
Press the
button again to return to normal remote controller mode.
Indoor unit address
Number changes to indicate
which indoor unit is currently
selected.
which indoor unit is currently
selected.
Number changes to indicate
which indoor unit is currently
selected.
which indoor unit is currently
selected.
<Procedure of CZ-RTC2>
Keep pressing the
1.
2.
,
and
buttons simultaneously for 4 or more seconds.
The “Maintenance func” screen appears on the
LCD display.
Press the
or
button to see each
menu.
If you wish to see the next screen instantly,
press the
or
button.
Select “7. Simple settings” on the LCD display
and press the
button.
The “Simple settings” screen appears on the
LCD display.
Select the “Unit no.” by pressing the
or
button for changes.
The indoor unit fan operates only at the selected
indoor unit.
Maintenance func
1. Outdoor unit error data
2. Service contact
3. RC setting mode
4.Test run
3. RC setting mode
4.Test run
Sel.
Page [
] Confirm
20:30 (THU)
Maintenance func
5. Sensor info.
6. Servicing check
6. Servicing check
8. Detailed settings
Sel.
Page [
] Confirm
20:30 (THU)
7. Simple settings
Simple settings
Unit no.
Code no.
Set data
01
3-1
0001
Sel.
Next
20:30 (THU)
CZ-RTC3
CZ-RTC2
<Procedure of CZ-RTC3>
Indoor unit address
START
[
]
20:30 (THU)
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Mini VRF SYSTEM
Remote Controller Functions
2
Contents
2-1
2. Remote Controller Functions
1. Remote Controller Test Run Settings ................................................................................ 2-2
2. Simple Settings Function.................................................................................................... 2-3
3. Detailed Settings Function ................................................................................................. 2-9
4. Remote Controller Servicing Functions .......................................................................... 2-24
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Mini VRF SYSTEM
Remote Controller Functions
2
2-2
1. Remote Controller Test Run Settings
1. Press the remote controller
button for 4 seconds or longer.
2. “TEST” appears on the LCD display while the test run is in progress.
3. Then press the
button.
The temperature cannot be adjusted in Test Run mode.
(This mode places a heavy load on the machines. Therefore use it only when performing the test run.)
The test run can be performed using the HEAT, COOL, or FAN operation modes.
The outdoor units will not operate for approximately 3 minutes after the power is turned ON and after operation
is stopped.
If correct operation is not possible, an error code is displayed on the remote controller LCD display.
(Refer to “Table of Self-Diagnostic Functions” and correct the problem.)
4. After the test run is completed, press the
button again. Check that “TEST” disappears from the LCD display.
To prevent continuous test runs, this remote controller includes a timer function that cancels the test run after 60 minutes.
The operation is possible even if the cassette-type ceiling panel has not been installed. (“P09” display does not occur.)
Wired Remote Controller Test Run Settings
<Procedure of CZ-RTC2>
CZ-RTC3
<Procedure of CZ-RTC3>
Keep pressing the
1.
2.
,
and
buttons simultaneously for 4 or more seconds.
The “Maintenance func” screen appears on the
LCD display.
Press the
or
button to see each
menu.
If you wish to see the next screen instantly, press
If you wish to see the next screen instantly, press
the
or
button.
Select "4. Test run" on the LCD display and press
the
button.
Change the display from OFF to ON by pressing
the
or
button. Then press the
button.
Maintenance func
1. Outdoor unit error data
2. Service contact
3. RC setting mode
4.Test run
3. RC setting mode
4.Test run
Sel.
Page [
] Confirm
Sel.
Page [
] Confirm
20:30 (THU)
Maintenance func
1. Outdoor unit error data
2. Service contact
3. RC setting mode
2. Service contact
3. RC setting mode
4.Test run
20:30 (THU)
[
] Confirm
Test run
Change
20:30 (THU)
Test run
ON
Press the
3.
4.
button. “TEST” will be displayed
on the LCD display.
Press the
button. Test run will be started.
Test run setting mode screen appears on the LCD
display.
TEST
START
[
]
20:30 (THU)
TEST
20:30 (THU)
COOL
MODE
FAN SPEED
FLAP
START
[
]
20:30 (THU)
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