Trane TAM7A0A24H21SC Installer's Manual page 36

E E l l e e c c t t r r i i c c a a l l — — L L o o w w V V o o l l t t a a g g e e
Com for t Control
X2
W
White
Green
G
Ye llo w
Y1
O Orange
Re d
R
Blue
B
Brown
Y2
• * For multiple stages of electric heat, jumper W1, W2, and W3 together if control has only one stage of heat.
• Yi and Y0 connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly.
OD unit pump down may occur if these connections are not made correctly.
• Internally mounted condensate switch is optional and must be ordered separately.
• If 3rd party condensate overflow switches are installed, they should be wired between Y of the thermostat and Y1 of the Airflow control.
5. Secure the sheathed wiring to the control pocket mounting plate using the factory supplied wire ties attached to the tabs as shown.
36
Figure 4. Field Wiring — Two Stage HP
Neatly bundle
wires behind t
cove r a s s h o w n .
Air Handler
W3 *
W2
W1 - White
W1
BK
Y2 Y2 - Brown
(In)
YI
O O - Orange
R - Re d
R
B B - Blue
(Out)
YO
Y1 - Ye llo w
Heat P u m p
a ll lo w vo lta g e
h e s e rvice va lve
Blac k
(X2)
Ye llo w /Re d
Ora n g e
Ye llo w
Re d
Blue
18-GJ06D2-2A