Starting The Pump; Vent The Piping System; Voltage Selection - Grundfos UP 200 Serie Instrucciones De Instalacion Y Operacion

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
system must first be filled with liquid
Caution
and vented.
Do not vent the piping system through
Note
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