Daikin FTYN20CVMB9 User Manual

SiENBE04-401A
ii Table of Contents
1. Introduction .............................................................................................v
1.1 Safety Cautions ........................................................................................v
Part 1 List of Functions ................................................................1
1. List of Functions ......................................................................................2
1.1 High Grade Models ..................................................................................2
1.2 Standard Grade Models ...........................................................................5
1.3 Non-lnverter Models .................................................................................9
Part 2 Specifications ..................................................................11
1. Specifications ........................................................................................12
1.1 Cooling Only...........................................................................................12
1.2 Heat Pump .............................................................................................20
Part 3 Printed Circuit Board Connector Wiring Diagram ...........37
1. Printed Circuit Board Connector Wiring Diagram..................................38
1.1 Indoor Unit..............................................................................................38
1.2 Outdoor Unit / RK(X)S-C, ARK(X)S-C....................................................40
1.3 Outdoor Unit / RK(X)H-C, ARK(X)H-C, R(Y)N-C ...................................42
Part 4 Function and Control........................................................43
1. Main Functions......................................................................................44
1.1 Frequency Principle................................................................................44
1.2 Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing ..........46
1.3 Fan Speed Control for Indoor Units........................................................47
1.4 Programme Dry Function .......................................................................48
1.5 Automatic Operation...............................................................................49
1.6 NIGHT SET Mode ..................................................................................50
1.7 INTELLIGENT EYE ................................................................................51
1.8 HOME LEAVE Operation .......................................................................53
1.9 Inverter POWERFUL Operation .............................................................54
1.10 Other Functions......................................................................................55
2. Function of Main Structural Parts..........................................................56
2.1 Function of Thermistor ...........................................................................56
3. Control Specification .............................................................................58
3.1 Mode Hierarchy ......................................................................................58
3.2 Frequency Control..................................................................................59
3.3 Controls at Mode Changing / Start-up....................................................61
3.4 Discharge Pipe Control ..........................................................................62
3.5 Input Current Control..............................................................................63
3.6 Freeze-up Protection Control .................................................................63
3.7 Heating Peak-cut Control .......................................................................64
3.8 Fan Control.............................................................................................64
3.9 Liquid Compression Protection Function 2.............................................64
3.10 Defrost Control .......................................................................................65
3.11 Electronic Expansion Valve Control .......................................................66
3.12 Malfunctions ...........................................................................................69
3.13 Forced Operation Mode .........................................................................70
3.14 Additional Function.................................................................................70

Daikin FTYN20CVMB9 Specifications

General

Brand	Daikin
Model	FTYN20CVMB9
Category	Air Conditioner
Language	English