Mini-split accessories
A mini split's inverter board is the most expensive part to replace, and a power surge is exactly what destroys it. A surge protector is cheap insurance against lightning, utility switching, and appliance spikes. There are two ways to add it - a small unit at the outdoor disconnect that protects just the mini split, or a whole-home protector at the panel that guards everything. Match it to your unit's voltage and you're covered.
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Installs at the outdoor disconnect and protects just the mini split's inverter board - the simplest, most affordable option if you don't already have whole-home protection. HVAC-rated brands like Intermatic and DiTek make these.
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Mounts at the electrical panel and protects the mini split plus every other appliance in the house - the best overall protection when you want to cover more than just the HVAC.
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For the smaller 115V mini splits that plug into a standard outlet, a heavy-duty appliance surge protector adds a layer of protection right at the plug.
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