SiUS04-702
Control Specification (15/18/24 Class)
Function and Control
57
4.12.1 Fully Closing with Power ON
Initialize the electronic expansion valve when turning on the power, set the opening position and
develop pressure equalizing.
4.12.2 Pressure Equalization Control
When the compressor is stopped, open and close the electronic expansion valve and develop
pressure equalization.
4.12.3 Opening Limit
Outline
Limit a maximum and minimum opening of the electronic expansion valve.
Detail
A maximum electronic expansion valve opening : 450 pulses
A minimum electronic expansion valve opening : 54 pulses
The electronic expansion valve is fully closed in the room where cooling is stopped and is opened
with fixed opening during defrosting.
4.12.4 Starting Operation Control
Control the electronic expansion valve opening when the system is starting, and prevent the
system to be super heated or moistened.
4.12.5 High Temperature of the
Discharge Pipe
When the compressor is operating, if the discharge pipe temperature exceeds a certain value, open
the electronic expansion valve and remove the refrigerant to the low pressure side and lower
discharge temperature.
4.12.6 Disconnection of the
Discharge Pipe Thermistor
Outline
Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with
the condensation temperature. If any is disconnected, open the electronic expansion valve
according to the outdoor air temperature and the operating frequency, and operate for a specified
time, and then stop.
After 3 minutes of waiting, restart the unit and check if any is disconnected. If any is disconnected
stop the system after operating for a specified time. If the disconnection is detected 4 times in
succession, then the system will be down.
Detail
Detect Disconnection
If a 630-second timer for open control becomes over, and a 9-minute timer for the compressor
operation continuation is not counting time, the following adjustment must be made.
1. When the operation mode is cooling
When the discharge pipe temperature is lower than the outdoor heat exchanger temperature,
the discharge pipe thermistor disconnection must be ascertained.
2. When the operation mode is heating
When the discharge pipe temperature is lower than the max temperature of operating room heat
exchanger, the discharge pipe thermistor disconnection must be ascertained.
Adjustment when the thermistor is disconnected
When compressor stop repeats specified time, the system should be down.
Summary of Contents for FTXS09DVJU
Page 1: ...SiUS04 702 Applied Models z Inverter Pair Heat Pump Inverter Pair Wall Mounted Type D Series...
Page 12: ...SiUS04 702 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 14: ...SiUS04 702 Specifications 3 Part 2 Specifications 1 Specifications 4...
Page 76: ...SiUS04 702 Instruction Operation Manual 65 2 2 FTXS09 12DVJU 2 2 1 Names of Parts...
Page 77: ...Instruction SiUS04 702 66 Operation Manual...
Page 78: ...SiUS04 702 Instruction Operation Manual 67...
Page 79: ...Instruction SiUS04 702 68 Operation Manual 2 2 2 Preparation before Operation...
Page 80: ...SiUS04 702 Instruction Operation Manual 69...
Page 81: ...Instruction SiUS04 702 70 Operation Manual...
Page 82: ...SiUS04 702 Instruction Operation Manual 71 2 2 3 AUTO DRY COOL HEAT FAN Operation...
Page 83: ...Instruction SiUS04 702 72 Operation Manual...
Page 84: ...SiUS04 702 Instruction Operation Manual 73 2 2 4 Adjusting the Airflow Direction...
Page 85: ...Instruction SiUS04 702 74 Operation Manual...
Page 86: ...SiUS04 702 Instruction Operation Manual 75 2 2 5 POWERFUL Operation...
Page 87: ...Instruction SiUS04 702 76 Operation Manual 2 2 6 OUTDOOR UNIT QUIET Operation...
Page 88: ...SiUS04 702 Instruction Operation Manual 77 2 2 7 HOME LEAVE Operation...
Page 89: ...Instruction SiUS04 702 78 Operation Manual...
Page 90: ...SiUS04 702 Instruction Operation Manual 79 2 2 8 INTELLIGENT EYE Operation...
Page 91: ...Instruction SiUS04 702 80 Operation Manual...
Page 92: ...SiUS04 702 Instruction Operation Manual 81 2 2 9 TIMER Operation...
Page 93: ...Instruction SiUS04 702 82 Operation Manual...
Page 94: ...SiUS04 702 Instruction Operation Manual 83 2 2 10 Care and Cleaning...
Page 95: ...Instruction SiUS04 702 84 Operation Manual...
Page 96: ...SiUS04 702 Instruction Operation Manual 85...
Page 97: ...Instruction SiUS04 702 86 Operation Manual...
Page 98: ...SiUS04 702 Instruction Operation Manual 87...
Page 99: ...Instruction SiUS04 702 88 Operation Manual...
Page 100: ...SiUS04 702 Instruction Operation Manual 89 3P141693 1K...
Page 101: ...Instruction SiUS04 702 90 Operation Manual 2 3 FTXS15 18 24DVJU 2 3 1 Names of Parts...
Page 102: ...SiUS04 702 Instruction Operation Manual 91...
Page 103: ...Instruction SiUS04 702 92 Operation Manual...
Page 104: ...SiUS04 702 Instruction Operation Manual 93 2 3 2 Preparation before Operation...
Page 105: ...Instruction SiUS04 702 94 Operation Manual...
Page 106: ...SiUS04 702 Instruction Operation Manual 95...
Page 107: ...Instruction SiUS04 702 96 Operation Manual 2 3 3 AUTO DRY COOL HEAT FAN Operation...
Page 108: ...SiUS04 702 Instruction Operation Manual 97...
Page 109: ...Instruction SiUS04 702 98 Operation Manual 2 3 4 Adjusting the Airflow Direction...
Page 110: ...SiUS04 702 Instruction Operation Manual 99...
Page 111: ...Instruction SiUS04 702 100 Operation Manual 2 3 5 POWERFUL Operation...
Page 112: ...SiUS04 702 Instruction Operation Manual 101 2 3 6 OUTDOOR UNIT QUIET Operation...
Page 113: ...Instruction SiUS04 702 102 Operation Manual 2 3 7 HOME LEAVE Operation...
Page 114: ...SiUS04 702 Instruction Operation Manual 103...
Page 115: ...Instruction SiUS04 702 104 Operation Manual 2 3 8 INTELLIGENT EYE Operation...
Page 116: ...SiUS04 702 Instruction Operation Manual 105...
Page 117: ...Instruction SiUS04 702 106 Operation Manual 2 3 9 TIMER Operation...
Page 118: ...SiUS04 702 Instruction Operation Manual 107...
Page 119: ...Instruction SiUS04 702 108 Operation Manual 2 3 10 Care and Cleaning...
Page 120: ...SiUS04 702 Instruction Operation Manual 109...
Page 121: ...Instruction SiUS04 702 110 Operation Manual...
Page 122: ...SiUS04 702 Instruction Operation Manual 111 2 3 11 Troubleshooting...
Page 123: ...Instruction SiUS04 702 112 Operation Manual...
Page 124: ...SiUS04 702 Instruction Operation Manual 113...
Page 125: ...Instruction SiUS04 702 114 Operation Manual 3P141693 2K...
Page 191: ...Check SiUS04 702 180 Service Diagnosis...
Page 293: ...Others SiUS04 702 282 Others...
Page 305: ...SiUS04 702 vi Index...