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[
IX
Troubleshooting ]
- 287 -
HWE09130
GB
2. MA remote controller transmission
The communication between the MA remote controller and the indoor unit is performed with current tone burst.
(1) Symptoms caused by noise interference on the transmission line
If noise is generated on the transmission line, and the communication between the MA remote controller and the indoor unit
is interrupted for 3 minutes in a row, MA transmission error (6831) will occur.
(2) Confirmation of transmission specifications and wave pattern
A, B : No polarity
Across terminal No. 1-2
: Power supply (9V to 12VDC)
Satisfies the formula
12 msec/bit 5%
Voltage among terminals must
be between DC9 and 12 V.
TB15
A
B
1
2
MA remote controller
Transmission waveform (Across terminal No.1 - 2)
DC9~12V
Logic 1
Logic 0
Logic 1
Logic 1
12msec
12msec
12msec
12msec
Indoor unit
Содержание PURY-P120
Страница 1: ...Models PURY P72 P96 P120 P144T Y JMU A PURY P168 P192 P216 P240 P264 P288T Y SJMU A ...
Страница 11: ... 2 ...
Страница 25: ... 16 ...
Страница 36: ... II Restrictions 27 HWE09130 GB ...
Страница 50: ... II Restrictions 41 41 HWE09130 GB ...
Страница 67: ... 58 II Restrictions GB HWE09130 ...
Страница 69: ... 60 ...
Страница 94: ... III Outdoor Unit Components 85 HWE09130 GB 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
Страница 95: ... 86 III Outdoor Unit Components GB HWE09130 ...
Страница 97: ... 88 ...
Страница 105: ... 96 IV Remote Controller GB HWE09130 ...
Страница 107: ... 98 ...
Страница 124: ... 115 HWE09130 GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 117 2 Principal Parts and Functions 126 ...
Страница 125: ... 116 ...
Страница 145: ... 136 ...
Страница 175: ... 166 VII Control GB HWE09130 ...
Страница 177: ... 168 ...
Страница 203: ... 194 ...
Страница 363: ... 354 IX Troubleshooting GB HWE09130 ...
Страница 364: ... 355 HWE09130 GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 357 ...
Страница 365: ... 356 ...