Electrical Information; Figure 21 - Two-Stage Fixed Speed Motor Control Board; Figure 22 - Two-Stage Variable Speed Motor Control Board; Figure 23 - Two-Stage Furnace Control Board - Nordyne *TA UPFLOW / HORIZONTAL Installation Instructions Manual

CONNECTION TO
FURNACE CONTROL
FAN SPEED
1 2 3 4 5 6 7 8
COOL
HEAT
STATUS
Figure 21. Two-Stage Fixed Speed
Motor Control Board
AUTO
STAGE
NONE
SHORT
THERMOSTAT CONNECTIONS
LONG
10 11 12
7 8 9
4 5 6
1 2 3
INPUTS
1 2
Figure 23. Two-Stage Furnace Control Board

ELECTRICAL INFORMATION

W1
NOT USED
EXPANSION
PORT
BOARD
MOTOR WIRE
HARNESS
FOR WIRING TO THE
MOTOR CONTROL
BOARD
EXPANSION
PORT
GREEN RED
YELLOW
(FLAME)
60
BLOWER
90
OFF
120
DELAY
180
NEUTRALS
3 4 5
W_OUT
Y/Y2_OUT
Y1_OUT
H_OUT
NOT FOR
FIELD USE
R
C
EXPANSION PORT
CONNECTION TO
FURNACE CONTROL
BOARD
Figure 22. Two-Stage Variable Speed
Motor Control Board
STATUS LIGHTS
L2-IN
L2-OUT
L1-IN
L1-OUT
DHUM_IN
FAN SPEED
1 2 3 4 5 6 7 8
Y1_IN
COOL
HEAT
SENSOR
GROUND
FOR USE
WITH IQ
OUTDOOR
MOTOR WIRING
UNITS
HARNESS
33