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SiEN18-622
Basic Control
Function
95
2. Basic Control
2.1
Normal Operation
Cooling Operation
Heating Operation
H
Heating operation is not functional at an outdoor air temperature of 24
°
CDB or more.
Actuator
Operation
Remarks
Compressor
Compressor PI control
Used for high pressure protection control, low
pressure protection control, discharge pipe
temperature protection control, and compressor
operating frequency upper limit control with
inverter protection control.
Outdoor unit fan
Cooling fan control
⎯
Four way valve
OFF
⎯
Main electronic expansion valve (EV1)
480 pls
⎯
Subcooling electronic expansion valve
(EV3)
PI control
⎯
Hot gas bypass valve (SVP)
OFF
This valve turns on with low pressure protection
control.
Actuator
Operation
Remarks
Compressor
Compressor PI control
Used for high pressure protection control, low
pressure protection control, discharge pipe
temperature protection control, and compressor
operating frequency upper limit control with
inverter protection control.
Outdoor unit fan
STEP 7 or 8
⎯
Four way valve
ON
⎯
Main electronic expansion valve (EV1)
PI control
⎯
Subcooling electronic expansion valve
(EV3)
PI control
⎯
Hot gas bypass valve (SVP)
OFF
This valve turns on with low pressure protection
control.
Содержание FTKS50BVMB
Страница 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Страница 30: ...SiEN18 622 Specifications 17 Part 2 Specifications 1 Specifications 18 1 1 Cooling Only 18 1 2 Heat Pump 34 ...
Страница 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Страница 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Страница 204: ...Instruction SiEN18 622 192 System Configuration FTK X S 50 60 71 F Indoor Unit 1 2 4 3 10 11 9 7 8 15 12 13 14 16 6 5 ...
Страница 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Страница 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Страница 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Страница 452: ...SiEN18 622 vi Index ...