Publicité
Les langues disponibles
Les langues disponibles
Lines from outdoor unit to indoor
unit
Terminal S1
Terminal S2
Terminal S3
15.5. Control signals to the furnace
Control signals to the furnace are the standard thermostat control signals R, C, W1, W2, Y/Y2 and G/Y1.
Line/
Terminal/
Signal
R
Provides 24VAC power from the furnace to the relay board and a limited number of
devices connected to the relay board (required AC input voltage range: 23 V
30 V
RMS
C
The 24VAC common wire between the furnace and the relay board.
W1
First stage of furnace command line from the relay board to the furnace.
W2
Second stage of furnace command line from the relay board to the furnace. W2
cannot be ON unless W1 is already ON.
G/Y1
For 1‑speed configuration (Mode 23 = 1), connect this signal to G of the furnace.
For 2-speed configuration (Mode 23 = 2), connect this signal to G and Y1 of the
furnace.
The G/Y1 signal is energized in Cool, Dry, Heat or Fan modes whenever the fan
is turned on. This signal is also energized, as configured, in coordination with the
humidifier and ERV/HRV.
Y/Y2
For 1-speed configuration (Mode 23 = 1), connect this signal to the Y connection
on the furnace. In this configuration, the Y/Y2 signal turns on when fan is requested
while in Cool mode or Heat mode using the heat pump.
For 2-speed configuration (Mode 23 = 2), connect this signal to Y2 on the furnace. In
this configuration, the Y/Y2 signal turns on as follows:
• In Fan mode, Cool mode or Heat mode with heat pump when high speed fan is
requested.
• In Auto Fan
between room temperature and set point temperature is more than or equal to
2° C. The signal goes back to low speed when the temperature difference is less
than 1° C.
• In Auto Fan
when the difference between room temperature and set point temperature is more
than or equal to 1° C for 3 minutes. The signal goes back to low speed when the
temperature difference is less than or equal to 0.5° C.
1
Requires PUZ/PUY
To operate with the PAA unit, furnaces must have four minimum connections: R, C, W and G.
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
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.
).
1
and Cool mode, the signal goes to high speed when the difference
1
and Heat mode with the heat pump, the signal goes to high speed
80
Description
Usage
© 2022 Mitsubishi Electric US, Inc.
to
RMS
Publicité
