Grundfos MQ 3-45 Service Instructions

28.04.2003
GB
21 / 24
C6
TM02 2387 4201
Fix the cover on the pump and connect the electricity sup-
ply.
C7
TM02 2388 4201
Wait approx. 5 min. or until water comes out of the tap.
C8
TM02 2375 4201/TM02 2376 4201
If the pump delivers water, the controller must be
replaced.
If the pump delivers no water, continue the fault finding
procedure.
C9
TM02 2372 4201
Disconnect the electricity supply by pulling out the plug.
C10
TM02 2367 4201
Replace the capacitor. If available, a measuring instru-
ment capable of measuring 25 microfarad can be used to
measure the capacitor for failures before it is replaced.
The blue wire from the capacitor must be connected with
the red wire to the motor. The white wire is not connected
to other wires.
C11
TM02 2387 4201
Fix the cover on the pump and connect the electricity sup-
ply.
Replace the
controller
Continue the
fault finding
or
Blue
Red
White

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