Samsung MXD-U000XN Installation Manual page 14

Installation
2 Stage Thermostat, 2 Stage AHU
AHU Control Unit (ACU)
Thermostat
Input
Y1 Y1
Y2 Y2
G G
W1 W1
W2 W2
D D
O/B O/B
R
C
DIP SW1
1 2
1 Stage Thermostat, 1 Stage AHU
AHU Control Unit (ACU)
Thermostat
Input
Y Y1
Y2
G G
W1 W1
W2 W2
D D
O/B O/B
R
C
DIP SW1
1 2
14 English
AHU with Heat Pump Configuration
Indoor unit
Output
Y1 Y1
Y2 Y2
G G
W1 W1
W2 W2
D D
O/B O/B
R R
C C
on
off
3 4 5 6 7 8
Indoor unit
Output
Y1 Y
Y2
G G
W1 W1
W2 W2
D D
O/B O/B
R R
C C
on
off
3 4 5 6 7 8
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• Connection of the dehumidification (D) terminal is
optional. If the thermostat and the AHU/furnace
supports a dehumidification signal, the outdoor unit
and AHU Control Unit (ACU) will adjust operation to
optimize dehumidification.
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