168
(5)Display of Indoor Unit Information (Displayed on Header Unit Only)
Note: Indoor address No. is selected by setting SW02 and SW03 and displayed on 7-segment display, section A.
* Although 64 indoor unit addresses (Nos. 01-64) are theoretically available, the number of indoor units that can
be connected to the same refrigerant piping system is limited to 48.
(6)Display of Outdoor EEPROM Writing Error Code (Displayed on Header Unit Only)
* The latest error code written in the EEPROM of each outdoor unit is displayed.
(This function is used to check the error code after the resetting of the power supply.)
To display the error code, press SW04 and hold for at least 5 seconds after setting SW01 to 03 as shown in the
table below.
• 7-Segment Display
Set SW01/SW02/SW03 to [1/1/16] and press SW04 and hold for at least 5 seconds. The latest error code of the
header unit (U1) will be displayed.
If the setting of SW02 is changed, the latest error code of a follow unit (U2-U4) will be displayed.
SW01 SW02 SW03 Display detail
4
1~16 1~3
Indoor BUS communication signal
receiving status
B Upon receiving signal: [… … 1], Other times: [… … …]
5 Indoor check code B No check code: [– – –]
6
Indoor capacity B
0.6 to 4.5
7
Indoor request command
(S code, operation mode)
B[ #. … ∗ ]
# represents mode:
COOL: [C. … ∗], HEAT: [H. … ∗]
FAN: [F. … ∗], OFF: [S. … ∗]
∗ represents S code: [#. … 0] to [#. … F]
8 Indoor PMV opening data B Displayed in decimal format
9 Indoor TA sensor data B Displayed in decimal format
11 Indoor TCJ sensor data B Displayed in decimal format
12 Indoor TC1 sensor data B Displayed in decimal format
13 Indoor TC2 sensor data B Displayed in decimal format
SW03 SW02 Indoor address 7-segment display section A
1 1~16 SW02 setting number [01]~[16]
2 1~16 SW02 setting number +16 [17]~[32]
3 1~16 SW02 setting number +32 [33]~[48]
SW01 SW02 SW03 Indoor address 7-segment display section A
1
1
16
Latest error code of header unit (U1) E. 1. ∗∗∗
2 Latest error code of follower unit No. 1 (U2) E. 2. ∗∗∗
3 Latest error code of follower unit No. 2 (U3) E. 3. ∗∗∗
4 Latest error code of follower unit No. 3 (U4) E. 4. ∗∗∗
Section A
Section B