Grundfos MQ 3-45 - Winding Resistance Measurement

11
English (US)
9.3.1 230 V
Fig. 15 Wiring diagram - 230 V
9.4 Winding resistance measurement
The measurement can be done with or without cables connected to the PCB and the capacitor.
TM02 2424 2409
Black (phase)
Red
Black
Orange
> Flow sensor
> Pressure switch
Capacitor
Yellow
Yellow
Electric motor
Yellow/green (ground)
Blue
White (neutral)
> Cable
B
A
Yellow
White
Red (main)
Motor
[V/Hz]
Measuring point Winding
Resistance
[Ω ± 10 %]
Ambient temperature
[°F] [°C]
230/60
A-B (blue - red) Main 5.4
70 21
A-C (blue - white) Aux 5.4