49
13.9. Compressor Overload Protection Control
Outdoor Fan Control
• If the temperature of the indoor heat exchanger rises to 51
°
C, outdoor fan stops. The outdoor fan restarts when the indoor heat
exchanger temperature falls to 49
°
C.
Compressor high pressure protection
• If the indoor heat exchanger becomes 65
°
C or more, the compressor will stop and restart automatically.
(Time Delay Safety Control - 4 minutes waiting).
• This is to reduce the pressure, as to reduce the indoor heat exchanger temp. Nevertheless, is to protect the compressor from
overload of too high temperature.
13.10. 4-Way Valve Control
• 4-way valve always on during Heating operation. (except deicing operation)
• When the unit is switched off by remote control during Heating operation, the 4-way valve stay at Heating position for 5 minutes.
• This is to prevent the refrigerant flow process sound for being occur.
13.11. Outdoor Fan Motor Control
• When compressor stops (reaches room temperature), outdoor fan will operate for 30 seconds (forced operation).
• This is to release the heat and to obtain the lowest pressure as fast as possible.
13.12. Hot Start Control
• Hot Start Control is to prevent cool air discharge into the room when heating operation start.
• When Heating operation starts, Indoor fan will not start until the indoor heat exchanger reaches 30
°
C as diagram shown.
• Hot start is completed when indoor heat exchanger rises to 39
°
C or operation over 4 minutes.
13.13. Cold Draft Prevention Control
• This operation is to prevent the Cold Draft during Heating mode operation.
• The operation will start when compressor OFF (Thermo OFF) during Heating operation.
• For the first 30 sec. from compressor OFF (Thermo OFF), Indoor fan speed will operate accordingly to the Indoor heat
exchanger temperature as shown below:
Содержание CS-A12HKD
Страница 12: ...12 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Outdoor Unit ...
Страница 13: ...13 5 Dimensions 5 1 Indoor Unit Remote Control 5 1 1 CS A7HKD CS A9HKD CS A12HKD ...
Страница 14: ...14 5 2 Outdoor Unit 5 2 1 CU A7HKD CU A9HKD 5 2 2 CU A12HKD ...
Страница 15: ...15 6 Refrigeration Cycle Diagram ...
Страница 16: ...16 7 Block Diagram 7 1 CS A7HKD CU A7HKD CS A9HKD CU A9HKD ...
Страница 17: ...17 7 2 CS A12HKD CU A12HKD ...
Страница 20: ...20 9 Electronic Circuit Diagram ...
Страница 21: ...21 10 Printed Circuit Board 10 1 Main Printed Circuit Board ...
Страница 22: ...22 10 2 Power Printed Circuit Board TOP VIEW BOTTOM VIEW ...
Страница 23: ...23 10 3 Indicator Printed Circuit Board 10 4 Patrol Printed Circuit Board ...
Страница 26: ...26 3 For the embedded piping This can be used for left rear piping and left bottom piping also ...
Страница 51: ...51 Normal Deice Time Diagram Overload Deice Time Diagram ...
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Страница 58: ...58 16 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures ...
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Страница 60: ...60 17 Technical Data 17 1 Thermostat Characteristics Cooling Soft Dry Heating ...
Страница 61: ...61 17 2 Operation Characteristics 17 2 1 CS A7HKD CU A7HKD ...
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Страница 65: ...65 17 2 2 CS A9HKD CU A9HKD ...
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Страница 69: ...69 17 2 3 CS A12HKD CU A12HKD ...
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