Installation Of Pressure Transmitter; Connections To Lc, Lcd - Grundfos LT 200 Instrucciones De Instalación Y Funcionamiento

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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
10
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

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