Field Wiring - Trane 4TTZ0 Installer's Manual

11.2 Low Voltage Hook-up Diagrams
Fully Communicating System
Communicating
Comfort Control
Brown
Red
Blue

Field wiring

Fully Communicating System
Communicating
Comfort Control
Field wiring
18-BC53D2-6
TAM8 Communicating
Air Handler
Y2
Note 1
Y1
O
D
R
B
Comm. Variable Speed
Furnace or Air Handler
R
BK
D
Y1
Note 3
Y2
G
Note 1
W1
W2
Brown
W3
Red
B
Blue
O
Communicating Outdoor Unit
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Brown
D - Note 2
B - Blue
Notes:
1. In communicating mode, unused terminals are non-functional. Do not use.
2. "D" is the data line. Installer to select a wire color.
3. If a 3rd party condensate overflow switch is installed, it should be wired in series with R to the thermostat
or connected to the External Switch terminals on the AFC. See External Switch wiring section in the air
handler Installer's Guide.
4. For 24 VAC Outdoor equipment, accessory BAYCC24VK01A must be ordered separately.
Communicating Outdoor Unit
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
D - Note 2
B - Blue
Notes:
1. In communicating mode, unused terminals are non-functional. Do not use.
2. "D" is the data line. Installer to select a wire color.
3. To connect optional devices (such as a float switch), wire in series from indoor unit "R" to Comfort Control "R".
Blue
Brown
Blue
13