4. Error Code Message
Display of Error Code: Indicated by the Status LED (Red color), a flash pattern consists of 1 to 6
flashes with 0.5sec separation, which is corresponding to the error code 1 to 6. The flash pattern is
repeated continuously with 2sec separation.
No of Flashes
(Error Code)
Error Message
1
Zero Crossing Test Fails
The frequency of the zero-crossing input is measured. To pass this test,
the frequency must be in the range of [90, 132] Hz.
2
12V DC Supplies Test Fails
The output levels of the two 12V DC supplies are measured. To pass this
test, the supply voltages must be over 8V.
3
EEPROM Test Fails
All locations in the EEPROM is tested by non-destructive Read, Write
and Verify.
4
Watchdog Reset Timing Test Fails
The Watchdog output from the MCU is stopped. And the time taken by
the external reset circuit to generate a Hardware Reset is measured.
Criteria to pass: the reset must be generated between 1 to 4 sec after the
Watchdog signal is stopped.
5
Thermistors Test Fails
The temperature detected by the 2 thermistors are compared with each
other.
Criteria to pass: the thermistor outputs must be within operational range
and the maximum difference between the OAT and any OCT must be
less than 5
o
C
6
Auto Input Test Fails
Each input from the photo-coupler is tested with Testplug or without
Testplug
- With Testplug, all input should provide 220VAC
- Without Testplug, all input should have no 220VAC
5. Jumper Settings
5.1 Self-test jumper - J1 (Factory test)
The J1 is used to switch the Outdoor unit to self-test mode. To do so, J1 must be closed before
switching ON the power of the unit. The J1 must be closed during the tests. Whenever J1 is
disconnected, the unit will go back to normal operation mode.
Operation Mode
J1 setting
Self Test
Closed
Normal Operation
Open
35
Содержание GR360M3R5TAA
Страница 15: ...Outdoor Unit GR360M3R5TAA 11...
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Страница 52: ...Outdoor Unit GR360M3R5TAA Parts Layout in Unit 48 Electronic Control Board Compressor A Compressor B...
Страница 53: ...Outdoor Unit GR360M3R5TAA 49 Solenoid valves lay out...