Contents
1. Safety precautions ············································································································ 1-1
1.1 Explanation of safety indications and graphic symbols ························································ 1-1
1.2 Safety precautions ······································································································ 1-1
2. Before using the water supply unit ························································································ 2-1
2.1 Points to be checked ··································································································· 2-1
2.2 Model type description ································································································· 2-1
3. Configuration and overview of the water supply unit ································································· 3-1
3.1 Specifications of the water supply unit ············································································· 3-1
3.2 Names and functions of each part ·················································································· 3-2
3.3 Specifications of control panel ······················································································· 3-6
3.4 Specification tables ····································································································· 3-7
4. Installation ······················································································································ 4-1
4.1 Precautions for installation ··························································································· 4-1
4.2 Precautions for piping work ·························································································· 4-2
4.3 Precautions for wiring work ··························································································· 4-3
5. Preparation for operation ···································································································· 5-1
5.1 Points to be checked before test operation ······································································· 5-1
5.2 Turning on the power ·································································································· 5-2
6. Test operation ·················································································································· 6-2
6.1 Check items related to manual operation ········································································· 6-2
6.2 Check items related to automatic operation ······································································ 6-3
7. Basic operations and indications/settings ··············································································· 7-1
7.1 Pump Operation ········································································································· 7-1
7.2 Selecting a receiver tank ······························································································ 7-2
7.3 Selecting the operation of the inflow solenoid valve···························································· 7-3
7.4 Indications on the display ····························································································· 7-4
7.5 Parameter settings ····································································································· 7-7
8. Maintenance and inspection ································································································ 8-1
8.1 Precautions for maintenance and inspection ···································································· 8-1
8.2 Inspection mode········································································································· 8-2
8.3 Maintenance check list ································································································ 8-3
9. How to handle troubles ······································································································ 9-1
9.1 Alarm handling ·········································································································· 9-1
9.2 Troubleshooting ········································································································· 9-2
10. Special specification····································································································· 10-1
10.1 Negative suction type ································································································ 10-1
10.2 Models with outdoor cover ·························································································· 10-2
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