Starting The Pump; Vent The Piping System; Voltage Selection - Grundfos UP Series 200 Installation And Operating Instructions Manual

Wiring diagram
Figure 6 shows the electrical connections when
using built-in motor protection with 1 x 230 V
supply.
L
Capacitor
P1
P2
T1
Fig. 6 Electrical connections (1 x 230 V
supply)

5. Starting the pump

5.1 Vent the piping system

After the pump has been installed and the
electrical connections made, the piping system
must be vented.
Never operate the pump dry - the
Caution
system must first be filled with
liquid and vented.
Do not vent the piping system
Note
through the pump.
Instead, follow these steps:
1. Fill and pressurize the system with liquid,
and vent all trapped air from the piping by
suitable means.
2. If isolation valves are used, make sure they
are OPEN.
Warning
If the vent screw is to be loosened,
care should be taken to ensure that
the escaping scalding hot liquid
does not cause personal injury or
damage to components.

5.2 Voltage selection

Warning
Never make any connections in the
pump terminal box unless the
power supply has been switched
off.
N
T5 T4 T8
T3 T2
Change the pump input voltage as follows:
The voltage is changed by the position of the
jumpers in the terminals. The jumpers are fitted
according to:
• figure 7 for 115 V AC
• figure 8 for 230 V AC.
L
L
P1
T5
P2 T1
Jumper wire
Fig. 7 Jumper position for 115 V AC
L
L
P1
T5
P2 T1
Jumper wire
Fig. 8 Jumper position for 230 V AC
L
T1 T5 T3
P2 P1
Fig. 9 Terminal box
N
N
T4 T8
T3 T2
N
N
T4 T8
T3 T2
N
T4 T2 T8
9