Wilo Star-RS 30/2 (4033760) - Инструкция по эксплуатации - Страница 17

Installation and operating instructions Wilo-Star RS/RSD 

11

English

6.2

Function of the product

Variable speed control (Fig. 8)

The pump's speed is switched in three stages using a rotary 
knob. The speed in the smallest stage is approx. 40 to 50 % of 
the maximum speed with a reduction of the current consump-
tion to 50 %.

Special pump features

For a double pump, the two motor impeller units are fitted iden-
tically and are mounted in a common pump housing with inte-
grated switchover valve. 
Each pump can run individually, but both pumps can also run at 
the same time in parallel operation. The operating modes are 
main/standby or parallel/peak-load operation. The individual 
units can be configured for different capacities. With the dou-
ble pump, a system can be adapted to individual operating sit-
uations. It is necessary to connect a corresponding switchgear 
for switching-over in order to control the different operating 
modes. 

7 Installation and electrical connection

DANGER! Risk of fatal injury!
Improper installation and electrical connection can result in 
fatal injury.

• Installation and electrical connection may only be carried out 

by qualified personnel and in accordance with the applicable 
regulations.

• Adhere to regulations for accident prevention