Auto Led Walk Test; Auto Realy Walk Test; Frequency Testing; Input Test - Electra WNG 7 Service Manual

CONTROL SYSTEM
d. STEP 4 : AUTO LED WALK TEST.
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•
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e. STEP 5: AUTO REALY WALK TEST:
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COMPRESSOR
INDOOR WATER PUMP
INDOOR FAN: LOW
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f. STEP 6: FREQUENCY TESTING:
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g. STEP 7: INPUT TEST.
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LED Indicator
STBY LED
OPER LED
TIMER LED
FILTER LED
COOL LED
HEAT LED
h. STEP 8: TIMING RESET TEST (WATCH DOG).
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•
12-30
All the LEDS will turn OFF.
All the LEDS will turn ON for 1 second one by one in the following
sequence:
STAND-BY OPERATE
In PRX all the LEDS will turn ON for 1 second one by one in the following
sequence : 18 °c 20 °c
High IFAN Auto IFAN
TIMER FILTER COOL
All relays will energize one by one in the following sequence:
OUTDOOR FAN R. V.
MID
When the relay walk test is completed, the next test will start
automatically.
If the frequency measuring process fails the COOL LED will turn ON.
In order to move to the next step, press ON/OFF button on the remote
control.
The test purpose is to check the analog real time indicators (thermistors,
LEVEL and clock) according to the table below.
Room thermistor ≠ 25°c
Indoor coil thermistor ≠ 25°c
Outdoor coil thermistor ≠ 25°c
Clock
LEVEL 2&3
LEVEL 4
The test purpose is to verify that the CPU rise time after power failure
is between 1 to 3 sec, test results are indicated on the LEDS : STAND-
BY,OPER, TIMER and FILTER turning ON one by one.
The results of the test are coded as follows:
Pass condition:
1 sec - STAND-BY and OPER are turned ON
2 sec - STAND-BY, OPER and TIMER are turned ON
Revision Y05-03
CONTENT
TIMER FILTER
22 °c 24 °c
Med IFAN Low IFAN
HEAT.
HEATER 1
SWING or OUTDOOR WATER PUMP
HIGH.
Condition for LED to be ON
COOL HEAT.
26 °c 28 °c 30 °c
STAND-BY
HEATER 2
Service Manual - WNG