1
2
LIBERTY II
T
T
24 VOLT
T
HERMOSTAT
FLAME
DETECTOR
BLACK
RED
WHITE
4
2
1
3
NOZZLE LINE
HEATER
IF EQUIPPED
G
REEN GROUNDING
SCREW
QUICK DISCONNECT PLUG
1
3
L2
L1
W
HITE
OTHER
SAFETY
CONTROL
BLACK
RED
GREEN
HIGH
LIMIT
2
1
ELECTRICAL POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION AS REQUIRED BY CODES.
2
CONTROL CASE MUST BE CONNECTED TO EARTH GROUND
USE GROUNDING SCREW PROVIDED.
3
GROUNDING CONDUCTOR: TWO GREEN GROUND WIRES ARE FACTORY CONNECTED TO THE GREEN GROUND SCREW IN THIS BOX.
FIELD WIRE A GROUNDED CONDUCTOR TO THIS SCREW TOGETHER WITH THE TWO GREEN FACTORY CONNECTED GREEN WIRES.
BURNER JUNCTION BOX
FIELD CONNECTION
JUNCTION BOX
(FACTORY MOUNTED)
43-0801
ORANGE
BLUE
R7184B
VIOLETVIOLET
R7184B
BLUE
ORANGE
43-0801
FIELD CONNECTION
JUNCTION BOX
(FACTORY MOUNTED)
BURNER JUNCTION BOX
GROUNDING CONDUCTOR: TWO GREEN GROUND WIRES ARE FACTORY CONNECTED TO THE GREEN GROUND SCREW IN THIS BOX.
FIELD WIRE A GROUNDED CONDUCTOR TO THIS SCREW TOGETHER WITH THE TWO GREEN FACTORY CONNECTED GREEN WIRES.
3
CONTROL CASE MUST BE CONNECTED TO EARTH GROUND
USE GROUNDING SCREW PROVIDED.
2
ELECTRICAL POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION AS REQUIRED BY CODES.
1
2
HIGH
LIMIT
GREEN
RED
BLACK
OTHER
SAFETY
CONTROL
W
HITE
3
1
G
REEN GROUNDING
SCREW
NOZZLE LINE
HEATER
IF EQUIPPED
3
1
2
4
WHITE
RED
BLACK
FLAME
DETECTOR
24 VOLT
T
HERMOSTAT
T
T
T
T
24 VOLT
THERMOSTAT
FLAME
DETECTOR
BLACK
RED
WHITE
4
2
1
3
NOZZLE LINE
HEATER
IF EQUIPPED
GREEN GROUNDING
SCREW
QUICK DISCONNECT PLUG
1
3
L2
L1
WHITE
OTHER
SAFETY
CONTROL
BLACK
RED
GREEN
HIGH
LIMIT
2
BURNER JUNCTION BOX
FIELD CONNECTION
JUNCTION BOX
(FACTORY MOUNTED)
43-0801
ORANGE
BLUE
R7184B
VIOLETVIOLET
9
PRIMARY R7184B WAS R8184G
SEE EN 6049
A
R7184B
BLUE
ORANGE
43-0801
FIELD CONNECTION
JUNCTION BOX
(FACTORY MOUNTED)
BURNER JUNCTION BOX
G
2
HIGH
LIMIT
GREEN
RED
BLACK
OTHER
SAFETY
CONTROL
WHITE
L1
L2
3
1
QUICK DISCONNECT PLUG
GREEN GROUNDING
SCREW
NOZZLE LINE
HEATER
IF EQUIPPED
3
1
2
4
WHITE
RED
BLACK
FLAME
DETECTOR
24 VOLT
THERMOSTAT
T
T
BLACK
BLACK
BLUE
BURNER
MOTOR
I
GNITION
SOLENOID
VALVE
I
F EQUIPPED
SOLENOID
VALVE
I
F EQUIPPED
I
GNITION
BURNER
MOTOR
BURNER
MOTOR
IGNITION
SOLENOID
VALVE
IF EQUIPPED
SOLENOID
VALVE
IF EQUIPPED
IGNITION
BURNER
MOTOR
C
D
E
REVISION
NO.
DZONE
D
8
7
6
543
2
See Detail "A" (p.13) for primary otherthan R7184
4
2
1
3
2
BLACK
WHITE
RED
GREEN
T
T
F
F
FLAME
DETECTOR
WHITE
BLACK
RED
GREEN GROUNDING
SCREW
LOW WATER ALARM
OR WATER FEEDER
(OPTIONAL)
NOZZLE LINE
HEATER
IF EQUIPPED
1
PRESSURE
CUT OUT
BURNER JUNCTION BOX
QUICK DISCONNECT PLUG
2 CONDUCTOR BX CABLE
STEAM HARNESS #2 FIELD
CONNECTED ON PRESSURE
CUT OUT.
L2
L1
RED
RED
4
OTHER
SAFETY
CONTROL
JUMPER
FIELD CONNECTION
JUNCTION BOX
FACTORY MOUNTED
L 4006A
L
OW LIMIT
F
OR TANKLESS
(OPTIONAL)
BLUE
RED
BLACK
3 CONDUCTOR BX CABLE
STEAM HARNESS #5 (BLUE WIRE
AVAILBLE FOR OPTIONAL ALARM OR
WATER FEEDER IF USED).
3
Solenoid valve if equipped.
Splice
Terminal
Overload protection and disconnect switch must be provided as
required by local codes.
Nozzle line heater, if equipped.
1
2
3
On burners without nozzle line heater, field connect
hot line to single black wire from
3 conductor box cable in 4 x 4 junction box.
67 MM L.W.C.O.
12
34
120 VAC./60Hz
24 VOLT
THERMOSTAT
W
IRING FOR PACKAGED STEAM BOILER EQUIPPED WITH Mc DONNELL NO. 67 L.W.C.O.
H
igh-Pressure Limit
Recommemded setting 0.5 PSI
Differential 5 PSI
Low Limit (tankless model only)
recommemded setting 160∞F
PRIMARY
CONTROL
R7184B
ORANGE
BLUE
VIOLET
V
BLACK
BLACK
BLUE
See Detail "A" (p.13) for primary other than R7184
IGNITION
B
URNER
MOTOR
S
OLENOID
VALVE
IF EQUIPPED
BASIC MODULE WIRING
(less circulator)
WIRING FOR PACKAGED STEAM BOILER EQUIPPED WITH McDONNELL NO.67 L.W.C.O.
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