Electra KN 24 RC, Service Manual

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CONTROL SYSTEM
Revision Y06-02 Service Manual - KN Series
d. STEP 3: A UTO LED W A LK TEST.
1) A ll the LEDS w ill turn OFF.
2) A ll the LEDS w ill turn ON f or 1 second one by one in the f ollo w ing sequence:
ST A ND-B Y
Ö
OPER A TE
Ö
TIMER
Ö
FILTER
Ö
COOL
Ö
HE A T.
3) In PR X all the LEDS w ill turn ON f or 1 second one by one in the f ollo w ing
sequence : 18 °c
Ö
20 °c
Ö
22 °c
Ö
24 °c
Ö
2 6 °c
Ö
28 °c
Ö
30 °c
Ö
High IF A N Ö A uto IF A N Ö Med IF A N Ö Lo w IF A N Ö ST A ND-B Y Ö TIMER Ö
FILTER Ö COOL Ö HE A T.
e. STEP 4: A UTO RE A L Y W A LK TEST:
A ll relays w ill energize one by one in the f ollo w ing sequence:
COMPRESSOR
Ö
OUTDOOR F A N
Ö
R. V.
Ö
HE A TER 1
Ö
HE A TER 2
Ö
INDOOR W A TER PUMP Ö SWING or OUTDOOR W A TER PUMP Ö INDOOR
F A N: LOW Ö MID Ö HIGH.
When the relay w al k test is co m pleted, the next test w ill start auto m atically.
f . STEP 5: FREQUENC Y TESTING:
I f the f requency m easuring process f ails the COOL LED w ill turn ON. In order to
m ove to the next step, press ON/OFF button on the re m ote control.
g. STEP 6 : INPUT TEST.
The test purpose is to chec k the analog real ti m e indicators (ther m istors, LEVEL
and cloc k ) according to the table belo w .
LED Indi ca tor Condition for LED to be ON
STB Y LED
Roo m ther m istor
z
25°c
OPER LED
Indoor coil ther m istor z 25°c
TIMER LED
Outdoor coil ther m istor
z
25°c
FILTER LED Cloc k
COOL LED LEVEL 2&3
HE A T LED LEVEL 4
h. STEP 7 : TIMING RESET TEST (W A TCH DOG).
The test purpose is to veri f y that the CPU rise ti m e a f ter po w er f ailure is bet w een 1
to 3 sec, test results are indicated on the LEDS : ST A ND-B Y ,OPER, TIMER and
FILTER turning ON one by one.
The results o f the test are coded as f ollo w s:
Pass condition:
1 sec - ST A ND-B Y and OPER are turned ON
2 sec - ST A ND-B Y , OPER and TIMER are turned ON