American Standard Silver 302 and 303 Touchscreen Thermostat
Part No. 37-7775005
09/2020 11-HD17D1-1C-EN 11
G
R
B
W
O
Y/Y1
R
B
O/B
L
Y2
Y
G
Rc
Rh
C
+
S
-
HM
W2
W/E
6
DHM
X2
Optional
remote
indoor or
outdoor
wired
sensor
FOOTNOTES:
1) A/TCONT302 {does not include humidifier(HM) and dehumidifier(DHM) terminals}
2) Wire third party condensate overflow switches between Y of the thermostat and Y1
of the airflow control board
3) X2 is required to energize aux heat during defrost
4) Factory installed jumper
Heat Pump with GAF2-S
Thermostat
Indoor Unit
Outdoor Unit
* Caution: Do not run Outdoor/Remote sensor wires
in the same bundle with HVAC wires. Also, keep
away from high voltage wiring to avoid interference.
1
1
2
4
3
G
R
B
W1
O/B
L
Y2
Y
G
Rc
Rh
C
+
S
-
HM
W2
W/E
6
DHM
Optional
remote
indoor or
outdoor
wired
sensor
FOOTNOTES:
1) A/TCONT302 {does not include humidifier(HM) and dehumidifier(DHM) terminals}
Package Heat Cool Unit
Thermostat
Thermostat
* Caution: Do not run Outdoor/Remote sensor wires
in the same bundle with HVAC wires. Also, keep
away from high voltage wiring to avoid interference.
Y
W2