Mitsubishi Electric PAR-40MAA Wired Remote Controller

Thermostat Capabilities

Communication

MA wired (proprietary 2-wire bus to indoor unit)

Communicating Compatibility

MA remote controller for Mitsubishi Electric M-Series and P-Series indoor units (wall-mounted, ducted, ceiling cassette, floor-mounted, multi-position air handler, ceiling-suspended). Some units require MAC-334IF interface adapter (sold separately). Battery-free, powered by 12V from the indoor unit over 22-2 wire.

C-Wire

N/A — not a line-voltage/24V thermostat; powered by 12V from the indoor unit over the MA control wire

Voice Assistants

Not found — none (wired MA controller)

Zoning

Single-zone and multi-zone compatible (one controller per indoor unit / group)

IAQ Sensors

Not found — no integrated IAQ sensors documented

Geofencing

Not found — none

BMS / BACnet

Not via this controller directly; Mitsubishi Electric BMS/BACnet integration is handled through separate gateways (e.g., AE-200 centralized controller / BAC-HD150 BACnet interface) at the system level, not the PAR-40MAAU itself

Dealer Portal

Not found on retailer pages — Mitsubishi Electric sells through OEM diamond contractor / distributor channels

Pro Features

7-day scheduling, backlit LCD, adjustable contrast, multi-language display (English/French/Spanish), daylight saving, no-occupancy auto-off, high-power mode, night setback, auto-return, temperature sensing at controller or indoor unit