Devices that still work when the internet doesn't.

Climate & Air / mini split

Pioneer WYS012AMFI22RL-16 (WYS Series, 12,000 BTU / 1 Ton Ductless Mini Split Heat Pump)

D0 No Radio — No radio at all. It cannot phone home.

The unplug test

Nothing changes, because the unit as sold has no network connection to begin with. The compressor and indoor fan coil are controlled entirely by the included infrared remote (or the manual-control button behind the front panel for emergencies); there is no built-in radio, app, or account. Pioneer sells a separate plug-in Wi-Fi dongle for owners who want phone control, but it is not included and installing it is what turns this into a networked device — buy the mini split alone and it stays exactly as described here indefinitely.

Why this tier: The manufacturer's owner's manual states plainly that 'Wi-Fi integration modules can be easily added to this unit by the owner anytime after purchase' and labels Wi-Fi access as an 'Optional Accessory Needed' — the indoor/outdoor unit as sold is controlled only by an included infrared remote or an on-unit manual-control button. The Wi-Fi module (OSK102) is a physically separate plug-in dongle manufactured by Midea and carries its own independent FCC grant (2ADQOMDNA15); no radio grant of any kind exists for the mini split hardware itself. As purchased and installed without that add-on dongle, the unit contains no intentional radiator.

Specifications

Account requirednone
Works offlinefully
Forced firmware updatesno
Radiosnone
FCC IDno intentional-radiator grant found
Local controlnone
Phones homenone
Parts availableyes
Availabilityin stock
Price band$700-1050 (seen 2026-09-02)
Vendor risk 0 / 3

Where to buy

Open questions

Sources

Class A is primary (manual, FCC filing, teardown). Class B is corroborated community reporting. Class C is never sufficient alone.

History

Last verified 2026-09-02 — 4 days ago.