WCU : Water Control Unit
Specifications
Items Supplied
Boiler water gauge level sensor for 5mm diameter sight glass (other sizes available upon request).
Red Alert LED
Additional Items Required
On/Off switch
Cold tank – Boiler feedwater tank - low water level sensor
Feedwater control valve (90° closed to fully open, lever valve).
Electric Feed Pump
Electrical Specifications :
4.8V to 12V (any type of battery)
Polarity protection on Power input
Large Red LED - System Status/Fault Indicators visible from the pond side
LED Blinking : Alert
Low input voltage
Low water level in the boiler feedwater tank
Boiler water level – demand for water not yet satisfied
LED Solid ON : Safety-critical Alarm System
Critically low input voltage
Boiler water level gauge sensor temp (green wire) connection fail - sensor not connected properly (this is a dangerous situation), the WCU will not be able to maintain the boiler water level.
Boiler water level not achieved. Pump not able to supply enough cold water into the boiler to reach the preset water level within one minute.
Low cold/feedwater tank water level and low boiler water level
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