American Standard ACONT203AS42MA Manuel d'installation et d'utilisation - Page 8
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Installation and User Guide
1 or 2 Stage Heat/Cool Package with Variable Speed Blower
Thermostat
Rc
Rh
O/B
Y
G
W/E
C
L
Y2
W2
1 or 2 Stage Heat Pump Package with Variable Speed Blower
Thermostat
Rc
Rh
O/B
Y
G
W/E
C
L
Y2
W2
8
Indoor Unit
R
Y1
G
W1
B
Y2
W2
W2
NOTES:
1) Wire third party condensate over ow
switches between Y of the thermostat
BK
and Y1 of the air ow control board
2) X2 is required to energize aux heat
during defrost
Indoor Unit
R
O/B
Y1
G
W1
B
Y2
W2
W2/X2
NOTES:
1) Wire third party condensate over ow
switches between Y of the thermostat
and Y1 of the air ow control board
2) X2 is required to energize aux heat
during defrost
Pub. No.
11-HD19D1-1D-EN
09/2020
Part No. 37-7777006