English (GB)
12
5.2 Motor protection
The motor incorporates thermal overload protection
and requires no additional motor protection.
5.3 Connection of motor
The motor incorporates a starter device and can
therefore be connected directly to the mains.
Start/stop of the pump will typically be done via a
pressure switch. See fig. 4.
Fig. 4
6. Installation
6.1 General
The loose data plate supplied with the pump should
be fixed close to the installation site.
6.2 Assembly of pump part and motor
To assemble pump part and motor, proceed as
follows:
1. Place the motor horizontally in a vice and tighten
it. See fig. 6.
2. Pull the pump shaft out to the position shown in
Fig. 5
3. Grease the motor shaft end with the grease
supplied with the motor.
4. Screw the pump part on the motor (55 Nm).
Caution: The pump shaft must engage with the
motor shaft.
A spanner may be used on the clamping faces of
the pump part. See fig. 6.
Fig. 6
When pump part and motor have been assembled
correctly, there must not be a clearance between
pump part and motor.
6.3 Removal of non-return valve
If a pump without non-return valve is required, the
valve can be removed as follows:
1. Cut off the legs of the valve guide using side-
cutting pliers or a similar tool. See fig. 7.
2. Turn the pump upside down.
3. Check that all loose parts fall out of the pump.
Fig. 7
The non-return valve can be fitted in a Grundfos
service workshop.
Caution
The pressure switch must be rated for
the maximum amps of the specific
pump size.
TM
01
14
80
46
97
Warning
Before starting any work on the pump/
motor, make sure that the power supply
has been switched off and that it cannot
be accidentally switched on.
Caution
Do not lower or lift the pump by means
of the motor cable.
N
L
P
Pressure switch
TM
02 842
5
520
3
TM
01
2
854
38
04
Motor (P2)
[kW]
L
[mm]
0.70
120
1.15
102
1.68
66
1.85
66
TM
01
43
37
01
99
TM
01
43
38
01
99
Note
SQE-NE is supplied without non-return
valve.
L
156 mm
