Installation Of Pressure Transmitter; Connections To Lc, Lcd - Grundfos LT 200 Montage- Und Betriebsanleitung

3.1 Installation of pressure transmitter

Place the pressure transmitter on the bottom of the
pit.
If the pit is cleaned regularly, we recommend placing
the transmitter in a tube for protection. The
transmitter cable is equipped with strain relief and
two ventilation tubes. The tubes must not be closed
off/obstructed, as the liquid pressure is measured in
relation to the ambient air pressure. Use a junction
box with venting if the cable is to be extended.

3.2 Connections to LC, LCD 108

Connect terminals 1, 2, 3, 4 and G to the
corresponding terminals of the CU 21X or to these
terminals of LC, LCD 108:
G Terminal 31
1 Terminal 12
2 Terminal 22
3 Terminal 32
4 Terminal 42
LT 200
1 2 3 4 G
Fig. 3 Connections to LC, LCD 108
CU 21X.XXX.X
AC 1 2 G 3 4
X2
Level switches or Level switches or
electrodes remote switch
G S1 T1 S2
1F2 1F3
X2 X2
Motor 1
Thermal circuit Thermal circuit
breaker
T2
Motor 2
breaker
7