Table of Contents
Advertisement
ONE OR TWO STAGE OR TWO STEP COOLING
VARIABLE SPEED INDOOR
BK ENABLED
Note B - Cut/remove the factory installed "BK" jumper at the indoor unit.
NOTE: See Fig. OIL-1 for external relay connections for oil furnaces.
NOTE: Two additional wires are required for Outdoor Temperature Sensor.
TWO STAGE VS
GAS FURNACE or
VS AIR HANDLER
& ELECTRIC HEAT
COMFORT CONTROL
Y/
Y2
COOLING-2nd
Y2
W3
HEATING -3rd
W3
24VAC HOT
R
HEATING -2nd W2
W2
W1
W1
HEATING -1st
Y/
Y1/
COOLING -1st
Y1
Y
G
FAN
O
B
B
24VAC
common
VS MODE -fan
BK
BK
Figure CL-1
TWO STAGE COOLING
VARIABLE SPEED INDOOR
BK DISABLED
NOTE: See Fig. OIL-1 for external relay connections for oil furnaces.
NOTE: Two additional wires are required for Outdoor Temperature Sensor.
TWO STAGE V.S.
GAS FURNACE or
VS AIR HANDLER
& ELECTRIC HEAT
COMFORT CONTROL
Y2
COOLING-2nd
W3
HEATING -3rd
24VAC HOT
R
HEATING -2nd W2
W1
HEATING -1st
Y/
COOLING -1st
Y1
G
FAN
O
B
24VAC
common
BK
Figure CL-3
Pub. No. 18-HD29D3-4
ONE OR TWO STAGE
OR TWO STEP AIR
CONDITIONER
Y2
R
R
Y/
Y1
LO
G
O
B
C
TWO STAGE
AIR CONDITIONER
Y/
Y2
Y2
W3
R
R
W2
W1
Y1/
Y1
Y
LO
G
O
B
B
C
BK
Installer's Guide
Note B - Cut/remove the factory installed "BK" jumper at the indoor unit.
NOTE: Two additional wires are required for Outdoor Temperature Sensor.
VS AIR HANDLER
& ELECTRIC HEAT
COMFORT CONTROL
Y2
COOLING-2nd
HEATING -3rd
W3
24VAC HOT
R
HEATING -2nd
W2
W1
HEATING -1st
Y/
COOLING -1st
Y1
G
FAN
O
24VAC
B
common
VS MODE -fan
BK
Figure CL-2
TWO STEP COOLING
VARIABLE SPEED INDOOR
BK DISABLED
Note A - The installer must jumper "R" to "O" at the LVTB.
Note B - Cut/remove the factory installed "BK" jumper at the indoor unit.
NOTE: See Fig. OIL-1 for external relay connections for oil furnaces.
NOTE: Two additional wires are required for Outdoor Temperature Sensor.
TWO STAGE VS
GAS FURNACE or
VS AIR HANDLER
COMFORT CONTROL
& ELECTRIC HEAT
BK
Y2
COOLING-2nd
W3
W3
HEATING -3rd
24VAC HOT
R
R
W2
HEATING -2nd W2
W1
W1
HEATING -1st
Y/
Y/
COOLING -1st
Y1
Y2
G
G
FAN
O
B
B
24VAC
common
C
Y1/
BK
Y
LO
Figure CL-4
TWO SEPARATE
AIR CONDITIONERS
Y/
Y
Y2
W3
R
B
W2
SECOND
STAGE
W1
Y1/
Y
Y
LO
G
O
B
B
BK
FIRST
STAGE
TWO STEP
AIR CONDITIONER
Y2
Y1
B
9
Hide quick links:
Advertisement
Table of Contents
