Service Manual

Indoorunit1
①
⑧
⑨
⑥
④
③
⑤
⑦
⑩
⑪
②
Ａ
Ｉ
Ｅ
Ｂ
Ｆ
Ｇ
Ｃ
Ｈ
Ｄ
Ｋ
Branch Box
(Primary)
Branch Box 1
(secondary)
Branch Box 2
(secondary)
Indoorunit2
Indoorunit3
Indoorunit4
Indoorunit5
Indoorunit6
Indoorunit7
Indoorunit8
Outdoor unit
J
Connection Line (example)
Serial Forward Transfer Error
①
⑪
Ａ
Ｋ
〜
〜
1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd LED401 LED402 LED403 LED404 LED405 LED401 LED402 LED403 LED404 LED405 LED401 LED402 LED403 LED404 LED405
①⑬②◎------------ - --------◎(1) ◎(5) ● ○ ○ - - - - - - - - - - EJ2U
②---⑬②◎--------- - --------◎(1)◎(5) ○ ● ○ - - - - - - - - - - EJ2U
③------⑬②◎------ - --------◎(1) ◎(5) ○ ○ ● - - - - - - - - - - EJ2U
④---------⑬②◎--- - -------- - - - - - ◎(2)◎(5) ● ○ ○ - - - - - EJ2U
⑤------------⑬②◎- -------- - - - - - ◎(2)◎(5)
○ ● ○ - - - - -EJ2U
⑥---------------⑬②◎------ - - - - - ◎(2)◎(5) ○ ○ ● - - - - - EJ2U
⑦--------------- - --⑬②◎--- - - - - - - - - - - ◎(3) ◎(5) ● ○ ○ EJ2U
⑧--------------- - -----⑬②◎ - - - - - - - - - - ◎(3) ◎(5) ○ ● ○ EJ2U
⑨ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬ ②◎ ⑬②◎ ⑬②◎ ◎(1) ◎(4) ○ ○ ○ ◎(2) ◎(4) ○ ○ ○ - - - - - E J 2U
⑩ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬ ②◎ ⑬②◎ ⑬②◎ ◎(1) ◎(4) ○ ○ ○ - - - - - ◎(3) ◎(4) ○ ○ ○ E J 2U
E113
E114
Ａ①①◎------------ - --------◎(1) ◎(5) ● ○ ○ - - - - - - - - - - E5U1
Ｂ---①①◎--------- - --------◎(1) ◎(5) ○ ● ○ - - - - - - - - - - E5U1
Ｃ------①①◎------ - --------◎(1) ◎(5) ○ ○ ● - - - - - - - - - - E5U1
Ｄ---------①①◎--- - -------- - - - - - ◎(2)◎(5) ● ○ ○ - - - - - E5U1
Ｅ------------①①◎- -------- - - - - - ◎(2)◎(5) ○ ● ○ - - - - - E5U1
Ｆ---------------①①◎------ - - - - - ◎(2)◎(5) ○ ○ ● - - - - - E5U1
Ｇ--------------- - --①①◎--- - - - - - - - - - - ◎(3) ◎(5) ● ○ ○ E5U1
Ｈ--------------- - -----①①◎ - - - - - - - - - - ◎(3) ◎(5) ○ ● ○ E5U1
--------------- - -------- - - - - - ● ◎(3) ○ ○ ○ - - - - - ----
⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬ ②◎ ⑬②◎ ⑬②◎ - - - - - ◎(2) ◎(4) ○ ○ ○ - - - - - E J 2U
--------------- - -------- - - - - - - - - - - ● ◎(3) ○ ○ ○ ----
⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬ ②◎ ⑬②◎ ⑬②◎ - - - - - - - - - - ◎(3) ◎(4) × ○ ○ E J 2U
①①◎ ①①◎ ①①◎ ①①◎ ①①◎ ① ①◎ ①①◎ ①①◎ ● ◎(3) ○ ○ ○ ● ◎(3) ○ ○ ○ ● ◎(3) ○ ○ ○ E 1 1 3
⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬ ②◎ ⑬②◎ ⑬②◎ ◎(1) ◎(3) ○ ○ ○ - - - - - - - - - - E J 2U
LED962LED961
----
SerialReverse
TransferError
Ｉ
Ｊ
Ｋ
----- -◎ ◎ (1) ◎ (3) ○ ○ ○◎ ⑬②◎ ⑬②◎ ⑬②◎ ⑬ ②◎ ⑬②◎ ⑬②
Outdoorunit
SerialForward
TransferError
⑪ ⑬②◎ ⑬②
Indoorunit6 Indoorunit7 Indoorunit8 BranchBox(Primary) Branch Box 1(sec ondary) Branch B ox 2(sec ondary)Indoorunit1 Indoorunit2 Indoorunit3 Indoorunit4 Indoorunit5
Serial signal error list
LED Display pattern of Indoor unit
・1st - Operation LED
・2nd - Timer LED
・3rd - Economy LED
Serial Reverse Transfer Error
LED Display pattern of Branch Box
・
● - Lit
・ ○ - Unlit
・ ◎ (n) - Flashing(number of flashing)
02-18
・ Number of flashes (0.5sec)
・ Continuous flash
・- No display