House Wiring Circuits and Circuit Breakers The fins can be either plate type or annular type. The other 2 wires supply the 220 VAC to the condenser. What size wire and breaker do I run use for a Fridgare 18000 btu window unit 230 volts 12 amp? Eliminated cause of engine overheating - R12 or 134A. HC37GE210A - Payne Upgraded Replacement Condenser Fan Motor 1/5 HP 230 Volts. Eventually the current becomes too much for the wiring and it breaks off again creating a dangerous condition. Homeowners with geothermal heat pumps have no use for the orange wire. There is two types of wiring that will need to be done. Comfort Specialist, HVAC Technician. Copper refrigerant lines play an essential role in air conditioning systems: They are responsible for carrying the refrigerant between the condensing unit and the evaporator coil. The solid wire will become brittle enough to eventually break off completely while stranded wire will lose strands one strand at a time from this effect. Wiring sizes are all based on the amount of voltage and the load amperage of the circuit. I don't argue with the inspector and do what their department requires. Home Electrical Wire Step 4 - Wire the AC to the Electric Panel. Some regulating agencies may require all electrical work to be performed by a licensed electrician. Kevin, you should not use 12/2 cable for this circuit because it will be too small because the circuit will be limited to 20 amps and the 18.9 amps required for this load is over 80 percent of the rated load for the 20 amp circuit. The orange wire only applies to homeowners with an air-source heat pump. Minimum circuit ampacity 18.9.max. A guide to home electrical circuit breakers and how they work to protect your electrical wiring. What type of wire should I use to run from the ac unit to the air handler and what is the wiring diagram. Further, the vibrating unit makes lots of noise which could disturb you and your neighbors. # 6 AWG wiring is sufficient but only up to 100 run. Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines. Fig.3: Window Air Conditioning Unit Power Circuit This electrical question came from: Kevin, a Homeowner from Canada. We show you how to install a Vintage Air Compac Gen II A/C System in a 1941 Ford Woodie. The specs are rated voltage 208/230 phase 1 hertz 60 voltage min 197 max 253. 69. Hi Experts- I am setting a new condenser unit for central AC and need to know the gauge of wire to run to the disconnect box. Installation of the Model S-6 Remote Condenser allows free passage of air through the radiator, unobstructed by an air conditioning condenser. 4.1 out of 5 stars 65. Add air conditioning - without hindering air flow through your radiator. Hi Don, $172.45 $ 172. 3.1 The Ladder Diagram. There are two copper lines that run between the condenser and the evaporator coil. This metal tag will be near the electrical connection box for the unit. It's going to completely depend on the unit that's being installed, but commonly it'll be 30-60 amp with 10-4 AWG wire. Category: HVAC.