Trane 4TTX8024A - Indoor Unit Wiring Connections; Communicating Indoor Unit Wiring; AM7 Air Handler Wiring Diagram

14 18-AC95D1-1
Red
Yellow
Brown
Green
White
Black
Purple
Blue
Yellow
Yellow/Black
Brown
Yellow/Red
Blue
Blue
W1
B
W3
W2
G
Y2
Y1
R
Comfort Control
Comm. Variable Speed
Furnace or Air Handler
Air Conditioner
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Notes:
1. See User Interface
setup menu for 24
VAC control mode
and cooling CFM
options.
2. First stage CFM
options for 4TTX8
are 65–80%.
3. W3 terminal may
not be present on
indoor unit.
4. Comfort control
may not have W2
or W3 terminals.
Comfort Control
Air Handler
Air Conditioner
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Yellow/Red
Field wiring
Yellow/Black
Blue
Red
Yellow
Green
White
Blue
B
B - Blue
W
G
Y1
Brown
Y2
Y1 - Yellow
Y2 - Brown
R
O
O
R
B
YI
W1
YO
Y2
DH/BK
G
W2
W3
(In)
(Out)
Communicating Indoor Unit
with 24 V Control Hook-up
Diagram
*AM7 Air Handler
Hook-up Diagram
1
1
12345
12345
HP
2(Compressor)
2(Stages)
AC (S ystem)
}
OUTDOOR
Capacity (Tons)
OUTDOOR
}
Torque
CFM/Ton
Cool OffDelay
}
INDOOR
CFM
+12V
R13
R14
R1
R4
1
U1
RNET 1
S1
on
on
S2
RNET 2
R
6
C22
C19
C
15
C
12
C18
C21
C10
D9
L1
R22
Must configure to
“ON” for AC Units.
Must configure to “ON” for
two-stage compressors.
Control Board