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Mar 14, 2013 · For some heat pump mini-split systems, the same conductor is used for the proprietary data communication signal (i.e. 12~24VDC) with a power voltage of 208~230 from …
Jan 6, 2025 · I was always under the impression that both are sized per the nameplate specs. If I have a name plate that reads: 'Maximum overcurrent protective device - 25A' 'Minimum circuit …
Jul 30, 2024 · 2020 NEC Looking at a job where a heat pump will be located under a porch, which is allowed in the instructions for the equipment. However in reading 440.14 I feel like I need a little …
Feb 6, 2010 · What are the requirements for the disconnecting means of a split unit air conditioner? I am in a location where thousands upon thousands of these units are...
Feb 10, 2023 · 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 …
May 17, 2021 · Because of this, the NEC is processing a Tentative Interim Amendment on 210.8 (F) in order to delay the implementation for these mini-split systems until January 1, 2023.
Jun 20, 2013 · We have approved plans for a manual fire alarm system with notification throughout in a restaurant, A-3 occupancy. The plans show connections to duct smoke detectors provided …
Oct 11, 2011 · I have a ductless minisplit that is installed as supplemental A/C in a kitchen with a larger A/C unit. The minisplit needs to shut off with the fire alarm system. I am specifying a fire …
Dec 27, 2020 · A new head unit connected to the mini-split was put in the ceiling. I extended the air handler circuit to the balcony. The mini-sized panel and breakers (all half-size) were very old and …
Dec 29, 2015 · 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 …
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