Part 4 Functions And Control - Daikin FFQ09Q2VJUFFQ12Q2VJUFFQ15Q2VJUFFQ18Q2VJURX09QMVJURX12QMVJURX15QMVJURX18QMVJU Service Manual

SiUS091628EA
1. Main Functions..........................................................................................13
2. Control Specification .................................................................................30
Functions and Control
Functions and Control
1.1 Temperature Control .................................................................................. 13
1.2 Frequency Principle.................................................................................... 13
1.3 Airflow Direction Control............................................................................. 15
1.4 Fan Speed Control for Indoor Unit ............................................................. 15
1.5 Program Dry Operation .............................................................................. 16
1.6 Clock and Calendar Setting
(With Wired Remote Controller BRC1E73) ................................................ 17
1.7 Schedule TIMER Operation
(With Wired Remote Controller BRC1E73) ................................................ 19
1.8 Setback Function
(With Wired Remote Controller BRC1E73) ................................................ 23
1.9 Drain Pump Control.................................................................................... 23
1.10 Hot Start Control (In Heating Operation Only)............................................ 25
1.11 Presence and Floor Sensors (Option)........................................................ 26
1.12 Other Functions.......................................................................................... 29
2.1 Mode Hierarchy .......................................................................................... 30
2.2 Frequency Control...................................................................................... 31
2.3 Controls at Mode Changing/Start-up.......................................................... 33
2.4 Discharge Pipe Temperature Control......................................................... 35
2.5 Input Current Control.................................................................................. 36
2.6 Freeze-up Protection Control ..................................................................... 37
2.7 Heating Peak-cut Control ........................................................................... 37
2.8 Outdoor Fan Control................................................................................... 38
2.9 Liquid Compression Protection Function.................................................... 38
2.10 Defrost Control ........................................................................................... 39
2.11 Electronic Expansion Valve Control ........................................................... 40
2.12 Malfunctions ............................................................................................... 43
Part 4
12