Air Handler Float Switch Wiring Pdf

Confirm that float rises and unit stops.

Air handler float switch wiring pdf. Test switch by lifting float with unit on. Most people know that air conditioning units cool indoor spaces by removing heat from the air but what many people don t realize is that in this process air conditioners also act as a dehumidifier and remove moisture from the air. Before the pan overflows and check for plumbing leaks. Read air conditioner installation manual for the location and wiring of external shut off terminal or overflow switch terminal.

It reveals the parts of the circuit as simplified shapes and the power and signal links between the devices. The ecm fan control controls the variable speed motor. If the float switch protects an air conditioning system twist the float switch lead around the thermostat s red wire. A float switch is essentaially an electronic water sensor for your hvac system.

Thermostat is lennox icomfort wi fi. Air handler float switch wiring pdf. If wired correctly unit will stop running. What it does it gives your ac system the ability to detect if it has a clogged drain and if the switch detects a clogged drain scenario it immediately shuts the system off.

Ela 6 to 20 ton air handlers page 4 refrigeration system continued options accessories field installed float switch kit float switch interrupts cooling operation if excessive condensate collects in the drain pan heat pump check valve kit 240 models only contains valve assemblies that field convert the coil. Wiring harness may be required to connect our switch to these terminals. Point and run unit to fill pan. If the wiring harness doesn t come with the air conditioner unit please contact air conditioner manufacturer for assistance.

Hi this question is about how best to wire a safe t switch model ss2 to lennox communicating equipment specifically xc25 048 230 condenser and cbx3mv 048 230 6 air handler. The dip switches work in pairs to match the airflow for the outdoor unit size tons. Air conditioning float switch and safety switch explained. Air conditioning float switch and safety switch explained.

Recently i ve had a series of alert codes 120 and 31 indicating loss of communication to the. If the float switch operates a sump pump or bilge pump wrap the second float switch lead around the wire that connects to the pump motor. Wire switch as directed under wiring below. Blower speed changes are made on the ecm fan control.

Then screw a wire nut over the ends of the wires. There is a bank of 8 dip switches. A wiring diagram is a streamlined standard photographic depiction of an electrical circuit. Assortment of rheem air handler wiring schematic.

Plug drain downstream from installation. Cooling airflow adjustment fan off. Disconnect power to the air handler before changing dip switch positions.