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13. Infrared human presence sensor circuit
With the infrared sensor,the air conditioner can detect the activity level in a room and adjust the
temperature and humidity automatically,thus achieving the purpose of energy saving.
When the activity level in a room is detected,the infrared sensor will be in operation.
And a low-voltage output from the infrared sensor P.W.B. will be magnified by the amplifier comparator
and be transformed the digital signal to microcomputer(IC601).
(The infrared sensor output is [Hi] when the activity level is not detected. On the contrary,output is [Lo].)
If the connector(CN21) is not inserted, it will be considered as no infrared sensor, and no self-diagnosis
indication.
Fig.13 1
Sensor P.W.B
Indoor main P.W,B
Microcomputer
Infrared sensor
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5
(QEF/REF Unse)
51
Содержание RAK-15QEF
Страница 2: ... DANGER 2 ...
Страница 21: ...WIRING DIAGRAM MODEL RAK 15QEF RAK 18 25 35 50REF RAK 18 25 35 50REFC 21 ...
Страница 22: ...WIRING DIAGRAM OF THE PRINTED WIRING BOARD Remote controller RAR 7PE1 22 ...
Страница 23: ...CIRCUIT DIAGRAM MODEL RAK 15QPE RAK 18 25 35 50REF RAK 25 35 50REFC AX 17H725 ...
Страница 24: ...BLOCK DIAGRAM MODEL RAK 15QEF RAK 18 25 35 50REF RAK 25 35 50REFC Humidity Sensor AX17H725V13 Frost wash 24 ...
Страница 25: ...31 33 29 MODEL RAK 15QPE RAK 18 25 35 50REF RAK 25 35 50REFC 25 ...
Страница 38: ...MODEL RAK 15QEF RAK 18 25 35REF RAK 25 35REFC 38 ...
Страница 39: ...MODEL RAK 50REF RAK 50REFC 39 ...
Страница 42: ...DESCRIPTION OF MAIN CIRCUIT OPERATION MODEL RAK 15QEF RAK 18 25 35 50REF RAK 25 35 50REFC 42 ...
Страница 48: ...10 10 10 10 10 DSW1 48 ...
Страница 52: ...RL1 RL1 RL2 52 ...
Страница 64: ...ON OFF ON OFF ON OFF 3 and page 3 8 9 64 ...
Страница 65: ...DISPLAY OPERATION MODE SETTING ON OFF 65 ...
Страница 66: ... FAN SPEED POWERFUL FAN SPEED POWERFUL HOW TO CHANGE THE INTERMITTENT FAN CONTROL SETTING 66 ...
Страница 82: ...JCH WH NO 0131E RAK 15QEF RAK 18REF RAK 25REF RAK 50REF RAK 25REFC RAK 35REFC RAK 35REF RAK 50REFC 82 ...