Sound Pressure Level; Electrical Connection; Checking Of Direction Of Rotation; Installation - Grundfos Unilift KP 150 Instrucciones De Instalación Y Funcionamiento

Storage temperature: Not lower than –20°C.
Installation depth:

1.3 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
98/37/EC relating to machinery.

2. Electrical connection

Note: Depending on local regulations, a pump with
10 metres of mains cable must be used if the pump
is used as a portable pump for different applications.
The electrical connection should be carried out in
accordance with local regulations.
The operating voltage and frequency are marked on
the nameplate. Please make sure that the motor is
suitable for the electricity supply on which it will be
used.
As a precaution, the pump must be con-
nected to a socket with earth connection.
It is recommended to fit the permanent
installation with an earth leakage circuit
breaker (ELCB) with a tripping current
< 30 mA.
The pump must be connected to an exter-
nal mains switch with a minimum contact
gap of 3 mm in all poles.
The pump incorporates thermal overload protection
and requires no additional motor protection.
Motors for Unilift KP 350, 3 x 200 V, 50 and 60 Hz,
must be connected to a motor starter.
If the motor is overloaded, it will stop automatically.
When cooled to normal temperature, the
motor restarts automatically.
Three-phase pumps which are to be used with a
float switch/vertical level switch must be connected
to the mains supply via a contactor, see fig. 2.
Fig. 2
Maximum 10 metres be-
low liquid level.

2.1 Checking of direction of rotation

(Three-phase pumps only)
The direction of rotation should be checked every
time the pump is connected to a new installation.
Check the direction of rotation as follows:
1. Position the pump on a plane surface.
2. Start and stop the pump.
3. Observe the movement of the pump (jerk). If the
pump moves as shown in fig. 3 (clockwise), the
direction of rotation is correct (counter-clock-
wise). If not, two of the supply phases to the
motor should be interchanged.
GRUNDFOS TYPE KPXXX
Serial no. P1XXXXXXXXXA
01.XX XX
U XXXXXXX V XX Hz
P XXX W XXX A
1
Ins. cl. F
Made in Denmark
Fig. 3
If the pump is connected to a piping system, the
direction of rotation can be checked as follows:
1. Start the pump and check the quantity of water.
2. Stop the pump and interchange two of the
phases to the motor.
3. Start the pump and check the quantity of water.
4. Stop the pump.
5. Compare the results taken under points 1 and 3,
and the connection which gives the larger quan-
tity of water is the correct direction of rotation.

3. Installation

3.1 Connection

The discharge pipe/hose is fitted to the Rp 1¼ dis-
charge port. Steel pipes can be screwed directly into
the pump discharge port.
For permanent installation a union fitted to the dis-
charge pipe at a convenient point is recommended to
facilitate ease of removal for cleaning and servicing.
If a hose is fitted, use a screwed hose coupling.
The pipe threads or hose coupling should be sealed
using teflon sealing tape or similar material.
Note: The pump must not be installed hanging from
the discharge pipe.
3
Qmax XXXX m /h
Hmax XXX m
IP68
10 m
7