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CONTENTS 
 
 
 
Contents……………………………………………………….....2 
1. Description of products & features………………………….3 
2. Specification…………………………………………………...6 
3. Dimensions…………………………………………………....21 
4. Pipe and wiring installation…..……………………………....26 
5. PCB photo, wiring diagram and function description……..72 
6. Diagnostic code and troubleshooting.……………………...95 
7. Outdoor performance curves………..……………………....101 
8. Indoor air velocity and temperature distribution curves......105 
9. Air flow and static pressure chart…………………………...111 
10. Noise level…………………………………………………...113 
11. Sensor characteristic….………………………………….....121 
12. Controller functions…...………………………………….....124