High Water Level Switch Connection - Little Giant VCMA Serie El Manual Del Propietario

INSTALLATION
Electrical Connections

High Water Level Switch Connection

Risk of severe injury or death by electrical shock.
• Disconnect power to the furnace, air conditioning, or refrigeration unit, both main power and the low
voltage thermostat circuit.
Risk of bodily injury or property damage.
• In applications where property damage and/or personal injury might result from an inoperative or
leaking pump due to power outages, discharge line blockage, or any other reason, a backup sys-
tem(s) (e.g. auxiliary switch) and/or alarm should be used and monitored.
• The high level switch should be connected to a Class II Low Voltage circuit. The two switch wires are
black. Do not confuse these wires with the line voltage power conductors.
Risk of damage to pump or other equipment.
• The high level switch is placed in an orientation that reverses the normal function of normally open
and normally closed terminals. Pay close attention to the following instructions.
1. High Water Level Switch
2. NC terminal. Connect here to activate an external alarm or relay.
3. NO terminal. Connect here to shut off the condensing unit of the heating/cooling system.
4. Motor cover and screw
5. Thermostat
6. Air Conditioner/Furnace
7. Level switch wiring leads
8