CONTENTS
1. Safety precautions ········································································································2
1-1. General precautions............................................................................................................... 2
1-7. Additional precautions ............................................................................................................ 5
2. About the product ·········································································································7
4. Specifications ··············································································································8
5. Package contents ·········································································································9
6. Transporting the unit ··································································································· 10
7. Installation location ···································································································· 11
8. Foundation work ········································································································ 14
9-1. Restrictions .......................................................................................................................... 15
9-2. Pipe selection....................................................................................................................... 16
9-3. Twinning kit selection ........................................................................................................... 16
9-6. Air-tightness test .................................................................................................................. 22
10. Electrical work ·········································································································· 29
10-4. System configuration ......................................................................................................... 31
10-6. Address setting .................................................................................................................. 37
11. Test run ···················································································································· 38
11-1. Before a test run ................................................................................................................. 38
11-2. Function setting .................................................................................................................. 38
11-4. Operation check ................................................................................................................. 39
WT09112X02
GB-1