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Control Specification
SiUS04-924
Function and Control 31
3.3.2 Four-Way Valve Switching
Outline
During the heating operation, current must be conducted and during cooling and defrosting, current
must not be conducted. In order to eliminate the switching sound (as the four-way valve coil
switches from ON to OFF) when the heating is stopped, the delay switch of the four-way valve must
be carried out after the operation stopped.
Detail
The OFF delay of four-way valve
Energize the coil for 150 seconds after unit operation is stopped.
3.3.3 Four-Way Valve Operation Compensation
Outline
At the beginning of the operation as the four-way valve is switched, acquire the differential pressure
required for activating the four-way valve by the operating frequency output, which is more than a
certain fixed frequency, for a certain fixed time.
Detail
Starting Conditions
1. The MRC/W turns ON when the compressor starts for heating after the MRC/W has been OFF
with compressor halted.
2. The MRC/W turns OFF when the compressor starts for cooling after the MRC/W has been ON
with compressor running.
3. The compressor starts for the first time after reset.
4. The compressor starts after suspension caused by the trouble of cooling/heating changeover.
Set the lower limit frequency (cooling :
Hz, heating :
Hz) for
seconds with any
conditions 1 through 4 above.
3.3.4 3-Minute Standby
Prohibits turning ON the compressor for 3 minutes after turning it off.
(Except when defrosting.)
30/36 class
Compensation frequency in cooling
(–6 DOA) / 256 + 9679 / 256
DOA: Outdoor Temp (°C).
Compensation frequency in heating
Compensation timer
70
Summary of Contents for FTXS30HVJU
Page 1: ...SiUS04 924 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type H Series ...
Page 8: ...SiUS04 924 List of Functions 1 Part 1 List of Functions 1 List of Functions 2 ...
Page 10: ...SiUS04 924 Specifications 3 Part 2 Specifications 1 Specifications 4 ...
Page 50: ...Control Specification SiUS04 924 Function and Control 43 ...
Page 53: ...Instruction SiUS04 924 46 Operation Manual 2 Instruction 2 1 Remote Controller ...
Page 54: ...SiUS04 924 Instruction Operation Manual 47 operation ...
Page 55: ...Instruction SiUS04 924 48 Operation Manual 2 2 AUTO DRY COOL HEAT FAN Operation ...
Page 56: ...SiUS04 924 Instruction Operation Manual 49 ...
Page 58: ...SiUS04 924 Instruction Operation Manual 51 fins fins fins fins angles Inside ...
Page 60: ...SiUS04 924 Instruction Operation Manual 53 2 5 INTELLIGENT EYE Operation fins above ...
Page 61: ...Instruction SiUS04 924 54 Operation Manual ...
Page 62: ...SiUS04 924 Instruction Operation Manual 55 2 6 POWERFUL Operation ...
Page 63: ...Instruction SiUS04 924 56 Operation Manual 2 7 OUTDOOR UNIT QUIET Operation ...
Page 64: ...SiUS04 924 Instruction Operation Manual 57 2 8 ECONO Operation ...
Page 65: ...Instruction SiUS04 924 58 Operation Manual 2 9 TIMER Operation ...
Page 66: ...SiUS04 924 Instruction Operation Manual 59 ...
Page 69: ...Instruction SiUS04 924 62 Operation Manual ...
Page 70: ...SiUS04 924 Instruction Operation Manual 63 ...
Page 71: ...Instruction SiUS04 924 64 Operation Manual ...
Page 72: ...SiUS04 924 Instruction Operation Manual 65 3P228444 2B ...
Page 193: ...SiUS04 924 187 Appendix Part 9 Appendix 1 Piping Diagrams 188 2 Wiring Diagrams 189 ...