IM-P402-129
EMM Issue 7
10
3. System overview
3.1 Function
The LC1350 controls the water level of
a boiler, tank or vessel, by operating a
pump or solenoid. Two alarm channels
are provided, and can be configured
high or low.
The controller reacts to a change
in probe conductivity (open / closed
circuit) and energises / de-energises a
relay. This action switches a pump or
sounds an alarm.
3.2 Operation
-
Pump on / pump off control.
-
Two alarm outputs.
3.3 Inputs
The product input options are:
-
High alarm or low alarm from a
single conductivity probe.
-
Pump on / off control from two
conductivity probes.
3.4 Other features
Additional delays can be selected
to increase the damping effect for
turbulent conditions.
To prevent unwanted or inadvertent
changes being made, all commissioning
parameters are protected with a pass
code.
The product can communicate via
an infrared link between adjacent
boiler house controllers (Spirax Sarco
products only). It is designated as a
slave unit only – see Section 7 –
'Communications'.
Note:
probes can be mounted in external
chambers if boiler mounting is not possible.
Fig. 2
OK
AL
LC1350
OK
AL
LC1350
LC1350
controller
LC1350
controller
Boiler
Not
used
LP10-4
probe
LP10-4
probe
1st Low
2nd Low
Pump on
Pump off
High alarm
Protection tubes
Not
used
3.5 Typical applications
Summary of Contents for LC1350
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