Table of Contents
Part 
Ⅰ
: Technical Information
 .......................................................................1
1. Summary
 ......................................................................................................................1
2. Specications
 ..........................................................................................................2
2.1 Specication Sheet ...........................................................................................................2
2.2 Operation Characteristic Curve ........................................................................................4
2.3 Capacity Variation Ratio According to Temperature .........................................................4
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................5
2.5 Noise Curve ......................................................................................................................5
3. Outline Dimension Diagram
 ........................................................................6
3.1 Indoor Unit ........................................................................................................................6
3.2 Outdoor Unit .....................................................................................................................7
4. Refrigerant System Diagram
 ......................................................................8
5. Electrical Part
...........................................................................................................9
5.1 Wiring Diagram .................................................................................................................9
5.2 PCB Printed Diagram .....................................................................................................11
6. Function and Control
 ......................................................................................13
6.1 Remote Controller Introduction of YB1FA ......................................................................13
6.2 Brief Description of Modes and Functions ......................................................................16
Part 
Ⅱ
: Installation and Maintenance 
 .................................................21
7. Notes for Installation and Maintenance
 ..........................................21
8. Installation
 ................................................................................................................23
8.1 Installation Dimension Diagram ......................................................................................23
8.2 Installation Parts-checking  ............................................................................................25
8.3 Selection of Installation Location ....................................................................................25
8.4 Electric Connection Requirement ...................................................................................25
8.5 Installation of Indoor Unit ................................................................................................25
8.6 Installation of Outdoor Unit .............................................................................................28
8.7 Vacuum Pumping and Leak Detection ...........................................................................29
8.8 Check after Installation and Test Operation ...................................................................29