1. DESCRIPTION OF PRODUCTS & FEATURES……………………..3 
2.PHYSICAL AND ELECTRICAL SPECIFICATIONS……………….....4
3.SAFETY PRECAUTION…………………………………………….……5
4.ELECTRICAL CONTROL DEVICES…………………………….……..5
5.APPLICATION…………………..……………………………………..….5
6.INSTALLATION INSTRUCTIONS………………………....……………7
 Central Air Conditioning      Model: Air Handler, HB-D series 
7.WIRING DIAGRAMS……………………………….…………………….17