Description And Function; Installation And Electrical Connection - Wilo Star Serie Instrucciones De Instalación Y Funcionamiento

ENGLISH
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Description and function

6.1 Product description (see Fig. 1)
1 Terminal box
2 Suction side
3 Pump housing
4 Discharge side
5 Condensate outlet
6.2 Design of pump and motor
In the wet-rotor pump all rotating parts are surrounded by the liquid being pumped.
A shaft seal, which would be subject to wear is not required. The pumping medium lubricates the
bearings and cools both bearing and rotor. The pump is maintenance free.
The motor is impedance protected so motor overload protection is not required. Even the maxi-
mum overload current cannot damage the motor. The motor operates non-overloading. The
pump is protected in all three speeds.
6.3 Functions
Speed setting of Star S... pumps (Fig. 7)
The speed of the pump can be adjusted with a 3-speed rotary switch.
In position 1 the speed is approx. 40...50 % of the maximum speed with the power consumption
being reduced to 50 %.
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Installation and electrical connection

Installation and electrical work in compliance with any local codes and by quali-
fied personnel only!
WARNING!
Existing regulations for the prevention of accidents must be observed.
WARNING!
Dangers caused by electrical energy must be excluded.
National Electrical Codes, local codes and regulations must be followed.
7.1 Installation
The pump must be installed in a dry, well-ventilated and frost-free place.
x
CAUTION!
Dirt and solder drops in to the pump body can effect the pump operation.
It is recommended that any welding and soldering work be
x
done before installing the pump.
Thoroughly flush the system out before installing the pump.
x
The pump must be installed in an easily accessible position to facilitate inspection or replace-
x
ment.
WARNING!
The pump must be positioned so that someone cannot come into contact with the
hot pump surfaces while operation.
It is recommended that isolation valves be installed on the suction and discharge side of the
x
pump.
This will save having to drain and refill the system if the pump needs replacing. The valves are
to be installed so that any water that escapes cannot drip onto the pump motor or terminal box.
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6 Motor housing
7 Cable entry
8 Venting plug
9 Name plate
10 3-speed switch
Bodily injury
Electrical shock hazard
Possible damage of the pump
Risk of accident by hot surfaces