1
1-39
Stranded wire
Ring
pressure
terminal
Screw and
Special washer
Ring
pressure
terminal
Terminal plate
Ring pressure
terminal
Screw
Special
washer
Wire
Wire
Insulation tape
8 mm
Insulation tape
Shield mesh
Shield mesh
Strip 10 mm
Fig. 1-1
Fig. 1-2
Fig. 1-3
Fig. 1-4
Fig. 1-5
Fig. 1-6
■ Wiring samples
U1 type
Use this screw when connecting the shield
for the Inter-unit control wiring to ground.
Functional ground screw (External Electronic
Expansion Valve Kit and Schedule Timer)
Protective ground screw (External
Solenoid Valve Kit for 3WAY)
Power
Supply
Clamping Clip
*1 Fasten tightly.
Inter-unit Control
Wiring
Clamper*
1
Remote Control
Wiring
Clamper*
1
Clamper*
1
How to connect wiring to the terminal
■ For stranded wiring
(1) Cut the wire end with cutting pliers,
then strip the insulation to expose
the stranded wiring about 10 mm and
tightly twist the wire ends. (Fig. 1-1)
(2) Using a Phillips head screwdriver,
remove the terminal screw(s) on the
terminal plate.
(3) Using a ring connector fastener or
pliers, securely clamp each stripped
wire end with a ring pressure terminal.
(4) Place the ring pressure terminal,
and replace and tighten the removed
terminal screw using a screwdriver.
(Fig. 1-2)
■ Examples of shield wires
(1) Remove cable coat not to scratch braided shield. (Fig. 1-3)
(2) Unbraid the braided shield carefully and twist the
unbraided shield wires tightly together. Insulate the shield
wires by covering them with an insulation tube or wrapping
insulation tape around them. (Fig. 1-4)
(3) Remove coat of signal wire. (Fig. 1-5)
(4) Attach ring pressure terminals to the signal wires and the
shield wires insulated in Step (2). (Fig. 1-6)
E1 type
R1
R2
U1
U2
NL
Power
supply
Shielded
wire
ground
Unit
control
wiring
Remote
controller
line
Earth
Sec1.indb39Sec1.indb39 2012/03/0717:30:002012/03/0717:30:00
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