Nordyne R4GD Series Installation Instructions Manual page 17

1
2
3
4
5
6
FURNACE BOARD
R
Gas
Valve
ECONOMIZER
PLUG
Green
1
Gray
2
Black
3
Yellow
4
Blue
5
6
7
8
Typical Wiring (Field Supplied) for 1-Stage Cool, 1-Stage Heat
9
Gas
Valve
ECONOMIZER
PLUG
Green
1
Gray
2
Black
3
Yellow
4
Blue
5
6
7
8
9 Typical Wiring (Field Supplied) for 2-Stage Cool, 1-Stage Heat
RED
(Not Used on
ORANGE
3 Speed Motors)
BLUE
BLACK
WHITE
Figure 8. Indoor Blower Motor Leads.
C Y G W
FURNACE BOARD
R C Y G W
Figure 9. Typical Thermostat Connections.
PIN NUMBER WIRE COLOR
1
2 ORANGE
3
4
5
6
T'stat
Wire
Gauge
24
22
20
18
(Optional, Check thermostat Instructions)
X
Y1
R
INDOOR
G
THERMOSTAT
SUB-BASE
W1
(Optional, Check thermostat Instructions)
X
Y2
INDOOR
THERMOSTAT
Y1
SUB-BASE
R
G
W1
MOTOR SPEED
RED
LOW
MED LOW
MED HIGH
BLUE
or MEDIUM
BLACK
HIGH
N/A N/A
WHITE COMMON
Recommended T'stat
Wire Length Ft. (Unit to T'stat)
2-wire 4/5-wire
(Heating) (Cooling/HP)
55 25
90 45
140 70
225 110
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