Mitsubishi Electric PAAA18AA1 Installation Manual page 78

Mode Mode no.
Humidifier control
(applies if
Mode 13
1‑speed or 2‑speed
fan
1
After changing Mode 23 setting, you need to power cycle the system for the change to reliably take effect.
2
If connecting to a furnace with only one fan speed for cooling represented by Y, set Mode 23 = 1.
3
If connecting to a furnace that supports two fan speeds via Y1 and Y2, set Mode 23 = 2 to allow use of two fan speeds when cooling
or heating using the heat pump.
© 2022 Mitsubishi Electric US, Inc.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
Settings
2500 Hr
No filter sign indicator
Humidifier not supported
(CN25 output is ON if CNF
input has 12 VDC applied
or if there is a relevant
"CN25 peripheral ON" IT
13
protocol request via CN105,
regardless of mode or set-
tings.)
Humidifier supported
16 Heat operation & Thermo
ON
Heat operation
= 2)
Fan speed output signals G
and Y to furnace
1
23
Fan speed output signals
Y1 and Y2 to furnace
78
Set- Initial Check
ting set-
no. ting
2
3
1
2
2
1
1
2
2
1
1
3
2
Specifications are subject to change without notice.