Installation and operating instructions
50-18-002-0817
Wilo TWI & TWU
4” Submersible Well Pumps
Page 1: ...Installation and operating instructions 50 18 002 0817 Wilo TWI TWU 4 Submersible Well Pumps...
Page 2: ...by electrical energy are to be excluded Directives issued by the local electrical code and the local electricity supply companies are to be observed 2 5 Safety information for inspection and assembly...
Page 3: ...plate must be affixed in the immediate vicinity of the well head to allow access at all times to the unit s technical data Before lowering and while lowering in deep bore holes the insulation resistan...
Page 4: ...heck water level in bore hole well it must be at least 8 20 if 8 motor above the pump pressure pipe connection during operation Pump switches on too frequently a Insufficient switching difference betw...
Page 5: ...5 Wilo TWI Installation and Operation Manual Fig 1 min 12 min 8 for 3 6 models min 20 for 8 10 models...
Page 6: ...6 50 18 002 0817...
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