Figure 2. EFM / ELB Wiring Diagram with Electric Heat Option
WIRING DIAGRAM
GND
L1
L2
M4
M3
M1
M2
1
2
3
4
5
6
7
8
9
ELEMENT
HEATING
Black
Blue
Red
Blue
Brown
White
Black
Blue
Blue
Black
Black
Blue
Black
Blue
Plug/Receptacle
Connection
Red
GND
L1
L2
1
2
3
4
5
6
7
8
9
Black
Blue
ELEMENT
HEATING
Red
L1
L2
GND
L1
L2
ELEMENT
M3
HEATER
M4
M2
M1
M8
M5
M7
M6
CIRCUIT NO.2
CIRCUIT NO.1
HEATING
ELEMENT
HEATING
RELAY 1
HEATER
RELAY 2
Black
Blue
20 KW
Black
Blue
Plug/Receptacle
CIRCUIT NO.2
208-230/60/1
CIRCUIT NO.1
208-230/60/1
60A
NOTE: INSTALLER MUST MARK THE APPROPRIATE BOX AFTER INSTALLING OPTIONAL HEAT KIT AND ATTACH LABEL
NEAR UNIT WIRE DIAGRAM. INSTALLER MUST ENSURE THAT THE SPEED TAP DOES NOT
EXCEED THE MINIMUM HEATING BLOWER SPEED ON AIR HANDLER RATING PLATE.
Red
Plug/Receptacle
Connection
Connection
1
2
3
4
5
6
7
8
9
GND
8, 10 KW
3, 5 KW
Red
Black
Blue
Blue
Black
Blue
Brown
White
Black
Blue
Blue
Black
Black
Blue
Blue
Black
Red
Black
Blue
Blue
Black
Blue
Brown
White
Blue
Black
Blue
Black
Blue
Black
Blue
Black
Black
Black
Blue
Blue
Blue
White
M3
M4
M2
M1
M8
M5
M7
M6
Blue
Black
Blue
Black
AW1502-55345-B
L1
L2
CIRCUIT NO.2
208-230/30/1
GND
L1
L2
CIRCUIT NO.1
208-230/60/1
M4
M3
M2
M1
M8
M7
M6
M5
M4
M3
M2
M1
1
2
3
4
5
6
7
8
9
ELEMENT
CIRCUIT NO.2
HEATING
Black
Blue
Black
Blue
Red
Blue
Brown
White
Blue
White
Black
Blue
Blue
Black
Blue
Black
Black
Blue
Blue
Black
Black
Blue
Plug/Receptacle
Connection
ELEMENT
CIRCUIT NO.1
HEATING
GND
Red
15 KW
HEATER
RELAY 1
HEATER
RELAY 2
60A
60A
30A
M4
M3
M2
M1
M8
M7
M6
M5
HEATER
RELAY
HEATER
RELAY
1 2 3 4 5 6 7 8 9
L1
L2
GND
W
G
R
C
Y
THERMOSTAT
INDOOR
MOTOR
Purple
Black
Blue
Red
Brown
White
Green
Red
Purple
Red
Yellow
Green
Orange
Blue
Yellow
SEE NOTE 3
Blue
Black
Black
Blue
Red
Black
Purple
TRANSFORMER
24V
TERMINAL
BLOCK
PLUG/RECEPTACLE
CONNECTION
FACTORY WIRING
NOTE 1) Wiring change is required to convert transformer to 208 Volts.
Disconnect power. Disconnect orange high voltage lead and place on
terminal labeled as "208V" for 208 Volts power.
NOTE 2) Brown and White wires are used with Auxillary Heat Kits only.
NOTE 3) Used with Auxillary Heat Kits only.
WIRING TABLE
HIGH VOLTAGE WIRING
LOW VOLTAGE WIRING
FIELD WIRING
DISCONNECT POWER BEFORE
INSTALLATION OR SERVICING.
MULTIPLE POWER SOURCES
MAY BE PRESENT.
FAILURE TO DO SO MAY
CAUSE PROPERTY DAMAGE,
PERSONAL INJURY, OR DEATH.
230V
208V
Com
SEE
NOTE 1
SEE NOTE 2
CONSULT NATIONAL CODE FOR PROPER WIRE SIZE.
Single Speed Fan Control
Connect Only One Fan Lead
Not all models have 3 speeds
Black - High Speed
Blue - Medium Speed
Red - Low Speed
AW1509-55301-E
Air Handler - No Heat
TO BE REMOVED WHEN INSTALLING
HEATING ELEMENT KIT.
G
C
R
FAN TIMER
COM
NC
NO
24V CLASS 2 Wiring
USE COPPER CONNECTORS
ONLY.
Use Conductors Suitable for 167
Deg F.
208-230VAC / 60Hz / 1Ph
EQUIPMENT GROUND USE
COPPER OR ALUMINUM WIRE.
