Nortek FG7MQ - Wiring Diagrams; Line Voltage Wiring Diagram; iQ Wiring Configurations Diagrams

24

C
DX-
DX+
23
1
GREEN
RED
YELLOW
R
MODULATING
FURNACE
BOARD
R
A+
B-
C
OFF
ON
Model
Selection
Switch
iQ
T-STAT
C
DX-
DX+
23
1
GREEN
RED
YELLOW
R
MODULATING
FURNACE
BOARD
R
A+
B-
C
OFF
ON
Model
Selection
Switch
iQ
T-STAT
A
B
AGrn
B
-
+
To iQ Zone Equipment
iQ Zone
System Controller
-
C
Y
SINGLE STAGE
AC UNIT
C
OUTPUTS
INPUTS
R
W/
0
H
Y1
Y/Y2
SENSOR
GND
FURNACE
Y1/E
VAR. SPEED
MOTOR BOARD
MODULATING
FURNACE
BOARD
R
A+
B-
C
iQ
T-STAT
C
DX-
DX+
R
TWO STAGE
AC UNIT
C
Y2
R
Y1
C
OUTPUTS
INPUTS
R
W/
0
H
Y1
Y/Y2
SENSOR
GND
FURNACE
Y1/E
VAR. SPEED
MOTOR BOARD
MODULATING
FURNACE
BOARD
R
A+
B-
C
iQ
T-STAT
C
DX-
DX+
R
OPTION A - Low Voltage Field Wiring
(MQ Furnace Without iQ Zone System)
OPTION B - Low Voltage Field Wiring
(MQ Furnace With iQ Zone System)
OPTION C - Low Voltage Field Wiring
(Conventional Single-Stage AC)
OPTION D - Low Voltage Field Wiring
(Conventional Two-Stage AC)
HUMIDIFIER
(OPTIONAL)
C
R
W2
Y
O
C
OUTPUTS
INPUTS
R
W/
0
H
Y1
Y/Y2
SENSOR
GND
FURNACE
Y1/E
OD
GND
VAR. SPEED
MOTOR BOARD
OUTDOOR
TEMP.
SENSOR
SINGLE STAGE
NON-iQ HEAT PUMP
(OUTDOOR UNIT)
MODULATING
FURNACE
BOARD
R
A+
B-
C
iQ
T-STAT
C
DX-
DX+
R
OPTION E - Low Voltage Field Wiring
(Conventional Single Stage Heat Pump)
HUMIDIFIER
(OPTIONAL)
C
R
W2
Y
O
C
OUTPUTS
INPUTS
R
W/
0
H
Y1
Y/Y2
SENSOR
GND
FURNACE
Y1/E
VAR. SPEED
MOTOR BOARD
TWO STAGE
NON-iQ HEAT PUMP
(OUTDOOR UNIT)
Y2
OD
GND
OUTDOOR
TEMP.
SENSOR
MODULATING
FURNACE
BOARD
R
A+
B-
C
iQ
T-STAT
C
DX-
DX+
R
OPTION F - Low Voltage Field Wiring
(Conventional Two Stage Heat Pump)

Line Voltage Field Wiring

Field Supplied
Disconnect w/in
Sight of Furnace
Field Supplied
Panel Connector
Field Supplied
Fused Service
Panel
Black (Hot)
White (Neutral)
Green or Bare
(Ground)
Black
White
Black
White
Black
White
Field Line Voltage Wiring
Factory Line Voltage Wiring
Ground
Ground
Junction Box (may be int. or ext. to the furnace). These
connections can be made in the field supplied disconnect
at the furnace. NOTE: Connections made within the furnace
burner compartment do not require a junction box.
Ground