This booklet should be left with the instructions. Any defective product to be returned to owner of the pump for future reference Grundfos or a service station must be sent freight prepaid; documentation supporting the warranty and information regarding its operation.
2. Symbols used in this document Your Grundfos MP1 is of the utmost quality. Combined with proper installation, your Grundfos Warning pump will give you many years of reliable service. If these safety instructions are not To ensure the proper installation of the pump,...
Flow (Q): Max. 9 gpm 5.1.4 Electrical supply Head (H): Max. 275 ft The MP1 motor is a 3 phase 220 VAC unit designed to be driven by the MP1 variable frequency drive Liquid temp: Max. 80 °F (28 °C) (VFD).
Refer to the MP1 Variable Frequency Drive Installation and Operating Important — plastic and flexible pipe Instructions manual for proper wiring tend to stretch under load.
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The MP1 pump can be dismantled and reassembled quickly and easily by referring fig. 10 on p. 10 and following these steps. Dismantling 1. Shut the pump off by placing the MP1 VFD in the STOP position. 2. Disconnect MP1 VFD from power supply or generator.
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Teflon® washer Removing the old motor lead (pos. 15) 1. Make sure the MP1 VFD is turned OFF, and the motor lead is not connected to the MP1 VFD. Grommet (pos. 17) 2. Loosen and remove the set screw (pos. 12) from the inlet screen (pos.
Fit and tighten the set screw (pos. 12). 15. Connect the motor lead to the MP1 VFD and test the rotation of the pump. Submerge the pump in water, start it at its slowest speed and make sure Motor lead the pump shaft is turning counterclockwise.
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(as shown in 5.5.1 Storage fig. 8) is to submerge the motor lead and MP1 pump in a bucket of water. Touch one lead of the The pump should be thoroughly cleaned before megohmmeter to the pump and one to a motor lead.
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5.5.2 Assembly diagram MP1 assembly Qty. Pos. Description pump Inlet Screen Pump Housing 1/2" NPT Guide Vane Wear ring Impeller ring Spacer ring Motor lead assembly (Pos. 8) Wear plate Motor lead Ground assembly conducting Ground motor Shaft motor leads (3)
6. Technical data Technical data - MP1 Electric Full load rating 0.5 Hp / 220V / 3 Ph / 400 Hz / 5.5A Max. current (SFA) 5.5 amps Motor protection Thermik Geratebau, Series SY6 - (176°F [80°C]) Current overload Incorporated into MP1 VFD...
8. Accessories 8.1 Service kits, tools, and motor leads Replacement parts, service tools and motor leads are available from your Grundfos environmental distributor. Service kits Pos. (see fig. 10) Description Guide vane Wear ring Impeller Spacer ring Wear plate Wear ring...
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