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WIRING DIAGRAM
POWER SWITCH
GN
Power for Fan
POWER
Motor Control Board
MCB
Digital Control Board
DCB
Power Socket
XS
Ground Wire
GN
Motor
M
Motor Phase Wire
B
Motor Temperature Sensor
T S
Connection Wire
C
Low Pressure Sensor
LS
High Pressure Sensor
HS
Over Filling Prevention
OFP
Temperature Protector
T P
High Pressure Protector
HP
08
N.AYf.AC
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FAN
DCB
LS
J8
D
OFP
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J7
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TP
D
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J4
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HS
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OPERATING INSTRUCTION
1 ). Refrigerant hoses purge
Refrigerant
( Manifold gauge)
equipment
Use NVR1 valve core removal for faster recovery speed.
Ready for operation
Connect the hoses correctly and firmly.
( Please refer to the connection diagram)
1. Confirm the vapor valve and liquid valve of AC
system are in close position.
2. Confirm the vapor valve and liquid valve of
recovery tank are in close position.
3.Open the vapor and liquid valves of manifold gauge.
4.Loosen the connecting pipes of refrigerant tank.
S.Open the check valve of pipes.
Start operation
6. Plug in the machine, turn on the power, and the LCD
shows pressures.
7.Press the"START"button to start machine.
8. Turn the knob to recover.
N.AYf.AC
Liquid valve
( NRDC4M )
9.0bserve the reading of the low pressure
gauge when it reaches to-20inHg, after 20
seconds,LP cutoff opens and the machine
shuts off.
10.Turn the knob to "Close", LP cutoff blinks,
press the power button and start machine.
11 .Turn the knob slowly to "Purge" and
start self purging.
12.Observe the reading of the low pressure
gauge when it reaches to -20inHg for the
second time, after 20 seconds,LP cutoff
turns on and the machine stops work.
Finish operation
13. Turn the knob to "Close" and stop self purging.
14. Disconnect the refrigerant hose to the tank.
09
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