11
R
Y
C
G
W
1
2
3
4
5
6
7
8
9
Gray
Yellow
Blue
ECONOMIZER
PLUG
INDOOR
THERMOSTAT
SUB-BASE
Red
Black
Green
FROM
TRANSFORMER
FROM
CONTACTOR
FROM
BLOWER RELAY
(Optional,
Check
Thermostat
Instructions)
1
2
3
4
5
6
7
8
9
Brown
Orange
ACCESSORY
HEAT PLUG
Typical Wiring (Field Supplied) for 1-Stage Cool, 1-Stage Heat
Typical Wiring (Field Supplied) for 2-Stage Cool, 2-Stage Heat with an
Optional Outdoor Thermostat
Figure 8. Typical Air Conditioner Thermostat Connections
R
Y1
Y2
C
G
1
2
3
4
5
6
7
8
9
Gray
Yellow
Blue
ECONOMIZER
PLUG
INDOOR
THERMOSTAT
SUB-BASE
Red
Black
Green
FROM
TRANSFORMER
FROM
CONTACTOR
FROM
BLOWER RELAY
(Optional, Check
Thermostat Instructions)
1
2
3
4
5
6
7
8
9
Brown
Orange
ACCESSORY
HEAT PLUG
W1
W2
Optional
Outdoor Thermostat
(Field Supplied)
