Grundfos CMV 3, Installation And Operating Instructions Manual

Page: 7 / 20

English (GB)
7
4.2 Checking the direction of rotation
The description below applies to three-phase motors
only.
The motor fan cover has an installation indicator.
See fig.
6 . Based on the motor cooling air, it
indicates the direction of rotation of the motor.
Before you start the motor for the first time or if the
position of the installation indicator has been
changed, check that the installation indicator is
working properly for instance by moving the indicator
field with a finger.
To determine whether the direction of rotation is
correct or wrong, compare the indication with the
table below.
* To reverse the direction of rotation, switch off the
power supply and interchange any two of the
incoming supply wires.
Fig. 6 Installation indicator
You can place the indicator in various positions on
the motor, but do not place it between the cooling
fins close to the screws that hold the fan cover.
The correct direction of rotation is also shown by
arrows on the motor fan cover.
5. Product introduction
5.1 Applications
The pumps are vertical, multistage centrifugal pumps
designed for pumping of clean, thin and
non-flammable liquids, not containing solid particles
or fibres that may attack the pump mechanically or
chemically.
5.2 Identification
5.2.1 Nameplates for the pump
The pump nameplates are positioned on the motor
fan cover or terminal box.
The data and information on the pump nameplate
are described in the table below. See the nameplate
in fig.
1 on page 13 .
5.2.2 Nameplate with approval marks
The data and information on the pump nameplate
are described in the table below. See the nameplate
in fig.
2 on page 13 .
Indicator field Direction of rotation
Black Correct
White/reflecting Wrong*
TM
04
03
60
10
08
Indicator field
Pos. Description
1 Pump type
2 Pump model
3 Maximum ambient temperature
4 Temperature class
5 Minimum efficiency index
6 Maximum system pressure
7 Maximum liquid temperature
8 Hydraulic efficiency at best efficiency point
9 Insulation class
10 Motor protection
11 Rated flow
12 Head at rated flow
13 Maximum head
Pos. Description
1 CE mark
2 EAC mark
3 PSE mark
4 cULus mark
5 UL mark
6 cURus mark
7 Company name and address
8 Country of manufacture