Mitsubishi Electric PAA-A18AA1 Manual De Instalación página 82

Pin Signal
12A Signal G/Y1 to signal G (wire col-
or: green) of furnace on 1‑speed fur-
nace or to signal G and Y1 (wire
color: yellow) on 2‑speed furnace.
Lines from outdoor unit to in-
door unit
Terminal S1
Terminal S2
Terminal S3
© 2022 Mitsubishi Electric US, Inc.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
Pin
24B
Main power input line for the indoor unit from the outdoor unit.
Return or neutral line for the indoor unit from the outdoor unit.
Communication bus between outdoor unit and indoor unit.
82
Signal
TH01 return air temperature sen-
sor). Wire color: white
Description
Specifications are subject to change without notice.