The wiring diagram identifies the fan motor and compressor's wire colors and functions. Replace the refrigerant tubes' O-rings and lubricate with the proper oil. The compressor, fan motor and capacitor work together in an air-conditioning system's condensing unit. How to Wire a Contactor.
You can either tap off of the compressor clutch engagement wire to trigger the electric fan relay's coil (with a simple diode to prevent backfeeding the HEFI trigger wire/ECU). The wires feeding high-voltage electricity to the condensing unit connect to a contactor's line-voltage terminal and the air-conditioning system's low-voltage signal wires connect to the contactor's coil. One wire goes on each start capacitor terminal.Push the terminal on one of the start capacitor's wires onto the start capacitor relay's "Start" terminal.Push the wire terminal on the start capacitor's second wire onto the run capacitor's common terminal, often labeled "C," "COM." Or wire an A/C pressure switch Input to use as a Switched/Sensor Input Trigger for a custom Electric Fan Output (Inputs/Outputs ICF). 5) O-Rings.
A start capacitor kit contains a start capacitor, relay and wires.
Connect the line from the old starting relay to the spade terminal on the "run" wire (insulating sleeve).
The bare copper wire is the ground wire it needs to be connected to the green wire in the condenser junction box.
All 230V appliances must be connected to a dedicated circuit powered by a double-pole circuit breaker with the proper amperage rating. Unplug the unit if it connects to a wall receptacle. Another tell-tale sign that your AC pressure switch is no longer working properly is when the compressor is not coming on. Often a stamp on the side of the relay shows the wiring diagram.Push the wire terminal on the start capacitor relay's "Common" wire, usually the black wire, to the common terminal on the load side of the unit's contactor. The AC runs perfectly, but you cannot control it with the button. We recommend that O-rings be changed with the compressor.
The white wire from the circuit breaker often connects to the input side of the contactor's "L1" terminal.Insert the end of the compressor's wire with the "Run" or "R" function into the contactor's "L1" terminal. Push the other wire with the pin terminal onto the "run" terminal of the air conditioning compressor. The high-voltage wires from the air conditioner disconnect box (usually mounted on an outside wall within arm's reach of the air conditioner unit) are now pushed up through the wire clamp in the bottom of the box. Sylvus has been a home improvement contractor since 1992.
The start capacitor gives the motor's windings an electric boost during the start-up phase.
Compressor Is Off. When the low-voltage signal activates the contactor's coil, the contact points close and the high-voltage electricity energizes the compressor, fan motor and capacitor. Usually the fan motor uses brown insulation on its capacitor wire.Press the wire connector on the compressor's wire with the "Start" or "S" function onto the capacitor's "Herm" terminal.Press the wire connector on the short wire from the contactor's "L1" terminal onto the capacitor's "Common" or "Com" terminal. Failure in the part of the switch has a direct effect on the AC compressor.
It reveals the elements of the circuit as simplified shapes, as well as the power and signal connections in between the tools.
The compressor and fan motor use the capacitor to maintain a constant running speed.Set the thermostat's function switch to the "Off" position and turn off the condensing unit's circuit breaker.Remove the condenser's electrical service box cover with the correct screwdriver, usually a quarter-inch or five-sixteenths-inch hex screwdriver. A wiring diagram is a streamlined standard photographic representation of an electric circuit. Turn off the unit's circuit breaker if the unit wires directly to the circuit breaker.Inspect the start capacitor's wiring diagram. If the wire uses a wire connector, press the connector onto one of the contactor's "L1" prongs.
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