Grundfos MQ 3-45 Service Instructions

28.04.2003
GB
18 / 24
4.10.2 Observation B
B1
TM02 2369 4201
Turn off the tap.
B2
TM02 2371 4201
If the pump enters an alarm condition after 60 sec.,
replace the pressure switch.
If the pump stops within 15 sec. and does not enter an
alarm condition, continue the fault finding procedure.
B3
TM02 2372 4201
Disconnect the electricity supply by pulling out the plug.
B4
TM02 2375 4201/TM02 2376 4201
Turn on the tap. Remove the pressure from the system.
B5
TM02 2378 4201
Remove the controller.
15 sec.
Controller

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