Boiler house Level controls
2
Dimensions (approximate) in mm
46
120
Item 1
1
4
Upper terminal strip Lower terminal strip
2 3 4
Housing
Support rail TH 35, EN 60715
3
74
Installation in control cabinet The LCR2250 level controller is clipped onto a type TH 35, EN 60715 support rail in a control cabinet, see item 4.
2
2.3 38
Wiring Diagram
MIN/MAX
1
2
5
0.5 A (semi- delay)
6
6
2 1 E
3
4
7
Item 1
Output contact for control valve actuation
2 MIN/MAX output contact, de-energizing delay 3 seconds 3 Supply voltage connection 24 Vdc with semi-delay fuse 0.5 A provided on site 4 Actual value output 4-20 mA 5 Central earthing point (CEP) in control cabinet 6 Earthing point at auxilliary equipment (e.g.PA420/LP20/LP21). 7 Level transmitter LP20/LP21/PA420 4-20 mA.
TI-P693-22 EMM Issue 1
Page 2 of 3
LCR2250 Level Controller
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