Grundfos MQ 3-45 Service Instructions

28.04.2003
GB
19 / 24
B6
TM02 2379 4201
Check for impurities in the flow wheel housing. Replace
the flow sensor if defect.
B7
TM02 2366 4201
Make sure that the magnet on the flow wheel is fitted
against the sensor in the flow sensor cover.
B8
TM02 2380 4201
Fit the controller and the cover.
Connect the electricity supply.
B9
TM02 2381 4201\TM02 2382 4201
Press the on/off button. Do not forget to turn on the tap.
B10
TM02 2375 4201
If the pump delivers water without stopping/starting at
intervals of 15 seconds, the pump is OK.
Otherwise, the controller must be replaced.
Flow sensor

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