ALL electrical connections to a power source must be performed by a licensed electrician and comply with local, state and federal electrical codes and regulations. For the outside unit to the inside unit you should use 14/4 mini split wire. sub-PCB sub-PCB Wire Harness 1. ith the power off, open the front panel of the MAX indoor unit. Wire length: Under certain circumstances a large wire size may be needed even if your amp requirement does not seem to justify it. Because this is HVAC equipment, a 14 AWG circuit and 15A breaker is insufficiently sized. 3.5-5.0 ton maximum torque hard start device. The only ductless mini split air conditioning and heating unit that is easy to install for thousands less than a conventional HVAC system. The cable connects indoor and outdoor units. Pick the perfect MRCOOL DIY for your space. What type of wire should I use to install a mini split system? Specify the length needed. Wholesale Prices on Ductless Mini Split Heat Pump Air Conditioner Systems. Installing a New Circuit and Wiring for a Mini Split System. Go to the next largest wire size if your run is more than 100 feet, inside a conduit, or ganged with other wires where the heat dissipation may be inhibited. So this means that either 12/2 Type-NM cable could be installed in approved areas of the protected structure of the garage, or #12 THHN or THWN wire may be installed in approved electrical conduit, such as PVC, EMT, or Flexible Conduit. All Rights Reserved. Mount the Air Handler. Below, I have put together what I think are appropriate sizes for each of the units. You will need Adobe® Acrobat® Reader to view PDF documents. Then I’d go with the 1 ton or 12,000 Btu. On the outside jacket of the wire it is labeled "14-4 AWG (Mini-Split) Type CL3R 300V Sun Res (UL)(ETL) US E113117" Inside the jacket we have 4 conductors, the ground has green insulation. Slim series from Mitsubishi Mini Split is a 2 Ton Mini Split system that provides highly efficient solutions for heating and cooling. Heat pumps are used for heating and cooling. The Mr. This receptacle module is designed to quickly mount in the subbase directly under PTAC unit to provides Easy and Convenient Access to an Electrical Outlet. They also assist compressors in starting under very adverse ambient conditions such as low voltage or high head pressures. 300-500 Sq Feet a 12000 Btu 1 Ton Mini Ductless Split Air Conditioner would be best for you. Insul. Only problem I had was... A good wire for the mini-split AC. It's almost time to mount the indoor air handler to the wall. x 1/2 in. Mini Split Ductless AC System 14/4 Black Stranded Communication Wire 14 Gauge 4 Conductor 600V Direct Burial Rated 500ft Spool. You’ll also need to choose the correct size mini split for your space, which will be based on the system’s British Thermal Unit (BTU) output. Electrical Safety: Identify the electrical power source to the Mini Split System, turn it OFF and Tag with a Note before working with the electrical wiring. Use a 15A breaker with 14AWG wire (/3 W/G unless you don't need a service outlet at the disconnect) The rule for an air conditioner is that you need to use wire that's fat enough to handle the unit's maximum operating current (as given by the Minimum Circuit Ampacity), and you cannot use a breaker larger than the Maximum Overcurrent Protection Device (Max. x 25 ft. Wire for Ductless Mini Split Air Conditioner Heat Pump Systems Universal, Field Installed 208/230 Volt 30 Amp Subbase Receptacle Module, 1/4 in. One very important component is the box where the wire will be installed. Electrical Question: What type of wire should I use to install a mini split system? ... 10 gauge THHN wire; 1/2" conduit size; Non-Metallic Connectors; In the United States, ductless mini split systems come in either 110V or 220V. Wiring a Disconnect Box To Mini Split Disconnect Boxes are simple to wire up with power coming in and going out. UL Listed, contractors grade, color coded, stranded, black exterior jacket. $144.95 ... Max Breaker Size: 20: Min. The mini split system manufacturer recommends a 20 amp breaker in the main panel with 12/2 wiring going to an outside disconnect near the unit. This cable was good quality. In order to size your mini split correctly, you will need to know the square footage of the room, and check it against our table. $465.00$465.00 ($34.44/in) Most HVAC contractors can run a heating/ cooling load calculation for you as well, modeling your conditions/ climate zone. To size your mini split air conditioner, the most important thing you need to know is the square footage of the room you’re looking to cool and/or heat. Exact wire specifications depends on your units needs. Unit Size (BtuH) Liquid Line in (mm) Suction/Gas Line in (mm) 18,000 Port A 1/4 (6) 3/8 (9.5) Port B 1/4 (6) 3/8 (9.5) Port A 1/4 (6) 3/8 (9.5) of Cond. I am in the process of installing a 18,000btu mini split system for my garage. Thank you. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts). Price is given PER FOOT UL and CSA Approved for Indoor and Outdoor use Technical Information AWG Size: 16 No. Unit PCB Mount the indoor unit wire types and parts used for home projects with electrical code serves... Together what I needed, quick and reliable shipping a home Programs, 36 in Max size! Lbs/Mft: 95 Nom image to enlarge, and then the switch connects to the mini split Outdoor.... Starting under very adverse ambient conditions such as low voltage or high head pressures devices or an.. 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