Outdoor Unit
B - 12
Electric Wiring Diagram
Refrigerant
high pressure
switch
Cooling water
pump motor
Applicable to 70,90J2
model type
Applicable to 120-190J2
model type
Refrigerant
low pressure
sensor
Refrigerant
high pressure
sensor
Refrigerant
low pressure
sensor
Refrigerant
high pressure
sensor
Applicable to 70-90J2
model type
Applicable to 120-190j2
model type
expansion valve 1
expansion valve 2
expansion valve
Cooling water
electric three-way
valve
Liquid valve
Bypass valve
Applicable to
120-190J2 model type
Oil level
switch L
Oil level
switch H
Cooling water
level switch
Oil pump
Oil solenoid valve 1, 2
Cooling water
heater
Drain filter
heater
Crank case
heater
Four-way
valve
Applicable to 70,90J2
model type
Applicable to 120-190J2
model type
Fan motor 2
Fan motor 1
Earth
Communi-
cation
Electrical
power
Circuit breaker
Electro-magnetic
contactor for
DC power supplies
(52S)
Power source device for
starting up the starter
Engine oil
pressure switch
(Engine)
Step motor
(engine governor)
Cam angle
sensor
Crank angle
sensor
(No. 3 gas column,
no. 4 gas column)
(No. 1 gas column,
no. 2 gas column)
Compressor inlet temperature sensor
Compressor outlet temperature sensor
Exhaust gas temperature sensor
External air temperature sensor
Ignition coil 1-4
Fuel gas solenoid valve 1, 2
VGO1: entrance, VGO2: governor
N/P switch
Fuel gas adjustment
valve
Fuel gas box
Applicable to BLKψ70,90J2 and GRNψ120-190J2 model type
Current sensor 1
Power transformer
Diode
Cooling water
temperature sensor
Starter
Nickel cadmium battery
Clutch coil
Diode
Heat exchanger outlet temperature sensor
Heat exchanger inlet temperature sensor 1
Clutch coil temperature sensor
Condenser
Reactor 1
Reactor 2
Catalyst temperature sensor
Hot water outlet temperature sensor
Applied to a model
with hot water
supplying function
6P terminal
board
Applied to
a model with
odor catalyst
Applied to
a model with
hot water
supplying
function
Hot water
three-way valve
Fuel gas
Low pressure switch
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