Grundfos MQ 3-45 User Manual

12
English (US)
9.5 Startup
Before start-up, the pump must be filled with 1.2 to
1.5 gallons of water to enable it to self-prime,
see fig. 16. The pump is self-priming with a
maximum suction lift of 25 ft.
Fig. 16 Priming the pump
When started, the pump begins to self-prime.
When it has been primed, the pump will
automatically change over to normal operation.
If the priming has not been completed within
5 minutes, the pump will stop automatically and
attempt to restart after 30 minutes. It is possible to
reset the pump manually, see point 2 in the table of
section 10.1 Control panel.
TM01 9696 2600
Warning
Running the pump at a higher inlet
pressure than recommended (44 psi)
can cause the pump to leak.
Grundfos cannot be held responsible
for any damage to the pump and/or its
surroundings if this warning is not
followed.

Grundfos MQ 3-45 Specifications

General

Power consumption	1000 W
Maximum head	45 m
Maximum flow rate	3 m³/h
Protection class	IP54
Weight	13 kg
Maximum liquid temperature	35 °C
Maximum operating pressure	7.5 bar
Pumped liquid	Clean water
Liquid temperature range	0 - 35 °C
Maximum ambient temperature	45 °C
Supply voltage	220-240 V
Rated power - P2	0.75 kW
Mains frequency	50/60 Hz
Rated current	4.5 A
Enclosure class	IP54
Inlet connection	1 inch
Outlet connection	1 inch
Power supply	220-240 V, 50/60 Hz
Pump type	Centrifugal
Built-in pressure tank	Yes
Approvals	CE
Material	Stainless steel