English
13
Wiring
Observe the notes mentioned below when wiring to the power supply terminal block.
Precautions to be taken for power supply wiring.
CAUTION
• When connecting the wires to the terminal block using a single core
wire, be sure to perform curling.
Problems with the work may cause heat and fires.
• If the stranded wires must be used, make sure to use the round
crimp-style terminal for connection to the power supply terminal
block. Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
1.
Safe handling of high voltage part
• Turn the circuit breaker off and wait for 10 minutes before servicing.
1-1 To prevent electrical shock
• Check the voltage of max. DC50V between DB1 “+” and DB1 “-”. (Refer to the following figure.)
In case of cooling only type unit, 4 way valve coil does not exist.
WARNING
All circuitry including thermistor is subject to power supply voltage.
Good
Stripping wire at terminal block
Stranded wire
Round crimp-style
terminal
Wrong
Good
Strip wire end
to this point.
Excessive strip length
may cause electrical
shock or leakage.
Wrong
MULTIMETER
S80
(DC. VOLTAGE RANGE)
REVERSING SOLENOID
S20
VALVE LEAD WIRE
EXPANSION
ELECTRONIC
S90
VALVE LEAD WIRE
WIRE
THERMISTOR LEAD
S40 OL LEAD WIRE
S70 FAN MOTOR LEAD WIRE
LED
DC+
DC-
3PEN386698-4L.book Page 13 Thursday, April 27, 2017 8:43 AM
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