Sanyo SPW-UMR74EXH56, SPW-UMR94EXH56, R410A 5Use shielded wires for inter-unitcontrol wiring

(5)Use shielded wires for inter-unit control wiring

(c) and ground the shield on both sides, other- wise misoperation from noise may occur. (Fig. 4-4)

Connect wiring as shown in Section “4-3. Wiring System Diagrams.”

Loose wiring may cause

WARNING the terminal to overheat or result in unit malfunction.

A fire hazard may also exist. Therefore, ensure that all wiring is tightly connected.

When connecting each power wire to the terminal, fol- low the instructions on “How to connect wiring to the terminal” and fasten the wire securely with the fixing screw of the terminal plate.

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. 4-5)

(2)Using a Phillips head screwdriver, remove the ter- minal 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 screw- driver. (Fig. 4-6)

Shielded wire

GroundGround

Fig. 4-4

	Stranded wire
mm	Ring
10
	pressure
Strip
	terminal

	Fig. 4-5
Special	Screw
washer
	Ring pressure	Screw and
	terminal
		Special washer
Wire	Terminal plate
		Ring
		pressure
		terminal
	Wire

Fig. 4-6

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