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Liquid Level Controller LC-1
- Product Details
- Specifications
- Diagram
Liquid Level Controller LC-1
The liquid level controller combines an electronic control module with two liquid level switches, giving a ready-to-go system for the automatic filling or emptying of tanks and vessels. The control module is mounted in a weather-resistant NEMA 4 / IP66 box and is delivered pre-wired, ready to connect.
Two-point pump up / pump down control
An upper and a lower level switch set the two points between which the liquid level is held. The electronic latching control module starts the pump at one switch and stops it at the other, so the level difference can be set to suit the tank. Its design eliminates false starts caused by turbulent wave action.
- 30 A DPST motor contactor output, for pumps up to 1½ hp at 120 VAC or 3 hp at 240 VAC
- Secondary 10 A SPDT relay output
- 120 or 240 VAC, 50/60 Hz models
- Colour-coded, ring-labelled terminal strip
- Two ½″ seal-tight flexible conduit fittings
- Maintenance and check-out need only a standard multimeter
- Supplied with complete operating instructions, an installation and wiring diagram for the level switches and control module, and a numbered parts list
Use it with two of our liquid level switches, such as the Level Switch L-40.
Typical uses
- Air conditioning systems
- Industrial refrigeration systems
- Cooling in data centres
- Pools and spas
- Chillers
- Scrubbers
- Fluid blending systems
- Water treatment systems
- Natural gas
Liquid Level Controller LC-1
| Electronic latching control module | |
| Operating voltage | 120 or 240 VAC ±15% 50/60 Hz |
| Output relay | Single pole double throw (SPDT), isolated 10 A resistive at 240 VAC |
| Protection | Transient protected Dielectric breakdown: 1,500 V RMS minimum between input, output and probe |
| Operating and storage temperature | −20 °C to +55 °C |
| Circuit board | Conformal coated to resist moisture and corrosion |
| Motor contactor | |
| Operating coil | 120 VAC or 208–240 VAC, 50/60 Hz |
| Coil inrush / continuous | 31 VA / 7 VA |
| Pick-up voltage | 90 VAC (120 VAC coil) 170 VAC (208–240 VAC coil) |
| Coil insulation | Class B |
| Coil connections | Double male ¼″ quick connect |
| Maximum ambient temperature | 68 °C (155 °F) |
| Output power contacts | Double pole single throw (DPST), normally open, 30 A per pole |
| Pump motor | Up to 1½ hp at 120 VAC or 3 hp at 240 VAC |
| Terminal strip | |
| Rated voltage | 1,600 V RMS |
| Current rating | 30 A |
| Wire size | Lugs for AWG 14 to 12 |
| Hardware | Screws and terminals: nickel-plated brass Solder terminals: hot-tinned brass |
| Moulded material | General purpose phenolic (94V-0) |
| System | |
| Enclosure | NEMA 4 / IP66 weather-resistant box with two ½″ seal-tight flexible conduit fittings |
| Level switch cable | ¼″ OD 18/2 SVJ, 90 °C, UL listed |
| Supplied with | Operating instructions, mechanical and electrical installation drawing, numbered parts list |
Pump up – filling a tank
When the liquid falls to the lower level switch, the control module starts the pump and keeps it running until the liquid reaches the upper level switch.
Pump down – emptying a tank
When the liquid rises to the upper level switch, the control module starts the pump and keeps it running until the liquid falls to the lower level switch.