Buckaroo5
Well-known member
Planning the condenser placement and electrical run for my cabin mini-split install. It is a one-zone, 24,000 BTU Aura HyperHeat Senville unit. Electrical input is 230V with 24.9 amp MCA and 25 amp Max Fuse. Have some questions and any comments welcome -
Will install 25 amp, 2 pole breaker in the fuse box feeding 10-3 solid Romex which will go through the floor of the cabin into the crawl space (dirt floor) and exit the block wall (maybe 30 ft run) into a 60 amp rated non-fused disconnect (Square D QO200TR). The disconnect will be mounted on the exterior cabin wall beside the condenser. A surge suppressor will be installed at the disconnect box (Intermatic AG3000). Solid THHN #10 fed through non-metallic whip (Southwire Liquidtight) from disconnect to condenser.
A wiring harness comes with the unit that I think has the control and power wiring to run from the condenser to the interior head unit – does that make sense? I will run that up the exterior cabin wall without conduit, along with the refrigerant piping & drain line and protect it with a line set cover kit purchased from Senville. No whip required for the wiring from the condenser to the line set cover?
I don’t want the noise, vibration of a wall mount so am considering installing the condenser on a poured concrete pad and then placing it on a double run of treated 6x6’s to get it up off the ground. Rather than pouring the pad, it would be easier to use 4 deck blocks to build a stand. If I did this, I would put some plastic and gravel down to keep the weeds and critters away from the condenser. I did consider purchasing a metal stand but thought I could build a better one for less money.
Finally, in the future I am going to install a second, single zone 12,000 BTU Senville Aura unit for the upstairs – the condenser will be located beside this one. Electrical input is 230V with 15 amp MCA and 15 amp Max Fuse. I was going to make a separate run of solid 14-3 Romex from a 15 amp two pole breaker in the fuse box to a second disconnect and was going to do that now. Perhaps I should be thinking about making a single run of larger gauge wire from a larger breaker into a junction box in the crawl space and then feed two fused disconnects? It’s only about a 30 ft run and I have plenty of open breaker positions in the electrical panel so maybe not justified. What would that wire gauge/breaker size look like?
Thanks!
Will install 25 amp, 2 pole breaker in the fuse box feeding 10-3 solid Romex which will go through the floor of the cabin into the crawl space (dirt floor) and exit the block wall (maybe 30 ft run) into a 60 amp rated non-fused disconnect (Square D QO200TR). The disconnect will be mounted on the exterior cabin wall beside the condenser. A surge suppressor will be installed at the disconnect box (Intermatic AG3000). Solid THHN #10 fed through non-metallic whip (Southwire Liquidtight) from disconnect to condenser.
A wiring harness comes with the unit that I think has the control and power wiring to run from the condenser to the interior head unit – does that make sense? I will run that up the exterior cabin wall without conduit, along with the refrigerant piping & drain line and protect it with a line set cover kit purchased from Senville. No whip required for the wiring from the condenser to the line set cover?
I don’t want the noise, vibration of a wall mount so am considering installing the condenser on a poured concrete pad and then placing it on a double run of treated 6x6’s to get it up off the ground. Rather than pouring the pad, it would be easier to use 4 deck blocks to build a stand. If I did this, I would put some plastic and gravel down to keep the weeds and critters away from the condenser. I did consider purchasing a metal stand but thought I could build a better one for less money.
Finally, in the future I am going to install a second, single zone 12,000 BTU Senville Aura unit for the upstairs – the condenser will be located beside this one. Electrical input is 230V with 15 amp MCA and 15 amp Max Fuse. I was going to make a separate run of solid 14-3 Romex from a 15 amp two pole breaker in the fuse box to a second disconnect and was going to do that now. Perhaps I should be thinking about making a single run of larger gauge wire from a larger breaker into a junction box in the crawl space and then feed two fused disconnects? It’s only about a 30 ft run and I have plenty of open breaker positions in the electrical panel so maybe not justified. What would that wire gauge/breaker size look like?
Thanks!
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