CONTENTS 
PRODUCT ........................................................................................................................................ 1 
1 PRODUCT LIST ......................................................................................................................................... 1 
2 NOMENCLATURE ...................................................................................................................................... 3 
2.1 Nomenclature of outdoor units ................................................................................................................... 3 
3 PRODUCT FEATURES .............................................................................................................................. 3 
3.1 General introduction ...................................................................................................................................... 3 
3.2 Features............................................................................................................................................................. 3 
4 SPECIFICATIONS ...................................................................................................................................... 4 
4.1 Specifications .................................................................................................................................................. 4 
4.2 Operation range .............................................................................................................................................. 8 
5 PRODUCT CAPACITY CORRECTION ...................................................................................................... 8 
5.1Correction factor of indoor and outdoor temperature ........................................................................... 8 
5.2 Correction factor of pipe length and height difference .........................................................................  9 
6 PRINCIPAL OF OPERATION ................................................................................................................... 10 
CONTROL ...................................................................................................................................... 15 
1  UNITS’ CONTROL ................................................................................................................................... 15 
1.1 Schematic diagram of units’ control ........................................................................................................ 15 
1.2 Interpretation on the schematic diagram ................................................................................................ 15 
2  REMOTE MONITORING SYSTEM ......................................................................................................... 15 
2.1 General introduction .................................................................................................................................... 15 
3  MONITORING SOFTWARE .................................................................................................................... 16 
3.1 Function introduction .................................................................................................................................. 16 
3.2 Connection of computer and units ...........................................................................................................  16 
3.3 Parts introduction ......................................................................................................................................... 17 
INSTALLATION .............................................................................................................................. 61 
1 ENGINEERING INSTALLATION PREPARATION AND NOTICE ........................................................... 61 
1.1 Installation notice ......................................................................................................................................... 61 
1.2 Installation key points and importance ................................................................................................... 61 
2 INSTALLATION MATERIALS SELECTION............................................................................................. 62 
2.1 Refrigerant piping ......................................................................................................................................... 62 
2.2 Condensate water pipe ................................................................................................................................ 63 
2.3 Insulation material ........................................................................................................................................ 63 
2.4 Communication cable and control cable ................................................................................................ 63 
2.5 Power cable .................................................................................................................................................... 64 
2.6 Hanger rod and support .............................................................................................................................. 64 
3 INSTALLATION OF OUTDOOR UNIT ..................................................................................................... 64 
3.1 Check before installation ............................................................................................................................ 64 
3.2 Selection of installation site .......................................................................................................................  64 
3.3 Carrying and installing outdoor unit ........................................................................................................  64 
3.4 Installation notices ....................................................................................................................................... 65 
3.5 Fixing and damping of unit ........................................................................................................................ 65 
3.6 Outline dimension and position of installation hole ............................................................................ 65 
3.7 Installation space requirement .................................................................................................................. 67 
DEBUGGING &MAINTENANCE .................................................................................................... 68 
1 DEBUGGING OF UNIT ............................................................................................................................ 69 
1.1 Preparation for debugging ......................................................................................................................... 69 
1.2 Debugging of unit ......................................................................................................................................... 70 
1.3 Parameters reference value for the normal operation of unit ........................................................... 73 
2 MALFUNCTION LIST ............................................................................................................................... 77 
2.1 Malfunction list for the wired controller .................................................................................................. 7 7 
2.2 Status display table for indicators on main board of outdoor unit .................................................. 78 
3 TROUBLESHOOTING ............................................................................................................................. 88 
4 POWER DISTRIBUTION OF UNIT .......................................................................................................... 98 
4.1 Power distribution of unit ........................................................................................................................... 98 
4.2 Main electric parts ........................................................................................................................................ 98 
4.3 Circuit diagram .............................................................................................................................................. 99