Grundfos DMX 221 Series, Инструкция по установке и эксплуатации

Страница: 15 / 32

English (GB)
15
Connection of hose lines
• Push the hose firmly onto the connection nipple and,
depending on the connection, secure using a connection
counterpart or hose support clip.
• Fit the gasket.
• Screw onto the valve using the union nut.
Fig. 12 Connection of hose lines
Connection of DN 20 pipe lines
• Depending on the pipe material and connection, glue it (PVC),
weld it (PP, PVDF or stainless steel) or press it in (stainless
steel).
• Fit the gasket.
• Screw onto the valve using the union nut.
Fig. 13 Connection of DN 20 pipe lines
Using a dosing controller
• Screw the dosing controller onto the discharge valve.
• Connect the discharge line to the dosing controller.
Fig. 14 Dosing controller
6. Electrical connections
Make sure that the pump is suitable for the electricity supply on
which it will be used.
6.1 Versions with mains plug
• Insert the mains plug in the mains socket.
6.2 Versions without mains plug
• Connect the motor according to the wiring diagram in the
terminal box.
TM
03
64
56
45
06
TM
03
6
457
45
06
TM
03
6
379
0
9
11
flow
2 mm
Warning
Electrical connections must only be carried out
by qualified personnel!
Disconnect the power supply before connecting
the power supply cable and the relay contacts!
Observe the local safety regulations!
Warning
The pump housing must only be opened by
personnel authorised by Grundfos!
Warning
Protect the cable connections and plugs against
corrosion and humidity.
Only remove the protective caps from the
sockets that are being used.
Caution
The power supply must be electrically isolated
from the signal inputs and outputs.
Note
The pump is switched off by switching off the
power supply.
Do not switch on the power supply until the pump
is going to be started.
Caution
Observe the direction of rotation!
A motor protector, adjusted to the rated motor
current, must be provided by the customer.
This is also necessary for versions with AR
control unit!
When the pump is used with a frequency
converter, the jumpers in the terminal box have to
be set according to the converter voltage.
The jumpers of three-phase motors are
factory-set for star connection.