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Mini split wiring | Information by Electrical Professionals for . . . Who is the manufacturer? I just wired a mini-split (Mitsubishi) and it required 16 4awg stranded for the LV control (between head - inside control unit - outside) I used CL3 stranded for wet locations For power, outdoor unit requires 15a 2-pole breaker I ran 14awg stranded for that Each manufacturer has different wiring schemes and I believe the NEC indicates the manufacturer wiring
Mini-split A C install - Mike Holts Forum A couple years ago I talked to an HVAC guy about putting a mini-split A C in my bedroom It is the main room I use so I figured it would be cheaper to cool one room than the whole house The guy suggested several ways to run the power One was EMT on the outside of the house either along the
(2) mini-splits, (1) breaker? | Information by Electrical Professionals . . . I am adding (2) mini-splits to my home, 240v, 15a max OCP per unit I have room for one DP breaker in my QO panel, I am not interested in adding a sub panel at this time I would like to run 10-2 UF, off one 30A DP GFCI(per Mitsubishi) breaker, this circuit would then hit (2) 30a, fusible A C
Residential Service Load Calculations using high BTU Mini Split HVAC . . . Typical Mini Split units that heat and cool are heatpump systems, meaning they do not generally have any kind of electric resistance AUX heat This means your highest running load is in cooling mode In Heating mode the system is performing " Refrigeration " duty which is notably less than AC load
Split A C Systems and Local Disconnect Requirements When the indoor unit of a split-system A C unit gets power from the outdoor condensing unit, does the indoor unit require a local disconnect switch if the outdoor unit has a lockable disconnect switch?
Load Calc for Mini Split System | Information by Electrical . . . Ductless Mini Split System: Mitsubishi R454B - 208V, 1PH - MCA: 12A - MOCP: 20A Looked too deep online and get differing answers on this one For the load, I am doing 208V * 12A = 2496 I thought this was Watts but read that it is Volt-Amps based on the MCA? Went down a rabbit hole and got
What breaker do I need for a ductless mini split compressor? I am getting conflicting info on what I will need for a panel breaker for a ductless mini split I have provided the link to the spec sheet for the compressor The fuse is installed and just need to run wire to panel and install breaker The current AC that will be trashed has dual 20 amp
Use 10-3 NM-B vs 10-2 NM-B for outdoor mini-split condenser Per NEC is it acceptable to pull 10-3 NM-B when only a 10-2 NM-B cable is needed at this time? I understand that the 10-3 provides the "extra" hot (red) conductor, but what does NEC say about the "spare" wire in the cable that is not needed? Cap the white conductor at both ends of the 10-3