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2 STAGE UTILIZING 2ND STAGE AIR-FLOW ONLY FOR SINGLE STAGE SYSTEMS
FIGURE 24
1-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT
Humidistat
Typical
Two-Stage
Thermostat
E/W1
W2
Y1
B
R
C
G
FIGURE 26
2-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT USING
2-STAGE THERMOSTAT FOR DEHUMIDIFICATION
Typical
Two-Stage
Thermostat
E/W1
W2
Y1
Y2
B
R
C
G
DHM
18
Heat Pump
Outdoor
Unit
Air Handler
PR
W1
W2
Y1
Y
Y/BL
Y2
BL
B
R
R
C
BR
G
W/R
ODD
WIRING INFORMATION
Line Voltage
-
Field Installed
-
Factory Standard
Heat Pump
Outdoor
Unit
Air Handler
PR
W1
D
W2
Y1
Y
Y1
Y/BL
Y2
Y2
BL
B
B
R
R
R
C
BR
C
G
W/R
L
ODD
WIRING INFORMATION
Line Voltage
-
Field Installed
-
Factory Standard
FIGURE 25
1-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT WITH
HUMIDISTAT FOR DEHUMIDIFICATION
Typical
Two-Stage
Thermostat
D
E/W1
W2
Y1
Y1
Y2
B
B
R
R
C
C
L
G
FIGURE 27
2-STAGE THERMOSTAT, HEAT PUMP, ELECTRIC HEAT WITH DEHU-
MIDIFICATION AND "L" TERMINAL
Typical
Two-Stage
Thermostat
E/W1
W2
Y1
Y2
B
R
C
G
DHM
WIRE COLOR CODE:
BK - BLACK
G - GREEN
BR - BROWN
GY - GRAY
GL - BLUE
O - ORANGE
Humidistat
Air Handler
W1
W2
Y1
Y2
B
R
C
G
ODD
WIRING INFORMATION
Line Voltage
-
Field Installed
-
Factory Standard
Air Handler
W1
W2
Y1
Y2
B
R
C
G
ODD
WIRING INFORMATION
Line Voltage
-
Field Installed
-
Factory Standard
PR - PURPLE
R - RED
W - WHITE
Heat Pump
Outdoor
Unit
PR
D
Y
Y1
Y/BL
Y2
BL
B
R
R
BR
C
W/R
L
Heat Pump
Outdoor
Unit
PR
D
Y
Y1
Y/BL
Y2
BL
B
R
R
BR
C
W/R
L
Y - YELLOW
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