– 52 –
5A
C001 to C008, C013, C014, C022 to C5, C888, C89, NF COIL1
From outdoor microcomputer to indoor microcomputer.
The request signal output from microcomputer pin
C
,
V
,
9
,
0
is input to the transmitting circuit. The
transmitting circuit modulates this signal by approx. 38kHz high-frequency. This high-frequency signal
is amplified by a transistor, superimposed on the DC 35V line via C801 (or C811, C821, C831) and
L801 (or L802, L803, L804) and supplied to the indoor unit.
Содержание RAM-71QH5
Страница 8: ... 7 4 ROOM MULTI SPLIT INVERTER TYPE RAC RAM 71QH5 POSSIBLE COMBINATION TO OPERATE SAME TIME OPERATION ...
Страница 9: ... 8 ...
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Страница 24: ...CIRCUIT DIAGRAM MODEL RAM 71QH5 25 ...
Страница 26: ... 29 ...
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Страница 28: ... 33 Outdoortemperature STAROTP_C TSKTM1_C1 Outdoortemperature STAROTP_C TSKTM1_C2 ...
Страница 29: ... 35 ...
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Страница 34: ... 43 RAM 71QH5 ...
Страница 42: ... 51 ...
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Страница 60: ... 69 ...
Страница 69: ... 81 ...
Страница 74: ... 86 Lighting mode self diagnosis lamp Location of self diagnosis lamp 1 RAM 71QH5 ...
Страница 75: ... 87 Lighting mode self diagnosis lamp 2 RAM 71QH5 ...
Страница 76: ... 88 TROUBLESHOOTING OF THE SYSTEM POWER MODULE ...
Страница 77: ... 89 ...
Страница 78: ... 90 ...
Страница 79: ......
Страница 83: ... 94 HITACHI PM NO 0459E Printed in Malaysia RAM 71QH5 ...