CONTENTS
Before Using the Equipment ····················································································· 01
Checks When Opening Packaging ············································································· 02
Using the Pump Safely ···························································································· 03
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Safety icons ···································································································· 03
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Cautions for Safety in Use ················································································· 04
1. Outline of Equipment ···························································································· 1
1-1. Intended Use and Prohibitions of Equipment ························································· 1
1-2. Equipment Specifications ··················································································· 1
1-3. Protector (thermal protector) ··············································································· 2
1-4. Gas Ballast Valve (important) ············································································· 2
2. Appearance ········································································································ 3
3. Installation / Storage ····························································································· 4
3-1. Precautions in Installation / Storage ····································································· 4
3-2 Installation / Storage and Ambient Condition during Operation ··································· 4
3-3 Installation location ···························································································· 4
3-4 Electric wiring ··································································································· 5
3-5 Fluctuations in the power voltage and frequency ····················································· 5
3-6 Piping ············································································································· 6
3-7 Storage ··········································································································· 6
4. Caution in Operation ····························································································· 7
4-1 Caution in Operation ·························································································· 7
4-2 When Thermal Protector Operated ······································································· 7
4-3 Starting in Cold Ambient ····················································································· 8
5. Pump Performance ······························································································· 9
5-1 Ultimate pressure ······························································································ 9
5-2 Exhaust velocity································································································ 9
5-3 Power Required ································································································ 9
6. Maintenance Inspection Repair ·············································································· 10
6-1 Caution in Maintenance/Inspection/Repair ···························································· 10
6-2 Maintenance ··································································································· 10
6-3 Periodic Inspection ··························································································· 11
6-4 Replacement of Consumable Parts······································································ 12
1) Replacement of diaphragm valves. It is recommended to replace all sheets
at the same time. ····························································································· 13
2) Replacement of bearing ···················································································· 16
6-5 Trouble Check List ··························································································· 17
Содержание DTU-20 Series
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