Argo ASMI50HG Технічні дані та інструкція з експлуатації - Сторінка 17

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6. CHECKING ELECTRICAL COMPONENTS

6-1. Measurement of Insulation

Resistance

● The insulation is in good condition if the resistance

exceeds 2MΩ.

6-1-1. Power Supply Wires

Clamp the grounding terminal of the power plug with a

lead clip of the insulation resistance tester and

measure the resistance by placing a probe on both

the two power terminals. (Fig. 1)

Then, also measure the resistance between the

grounding and other power terminals. (Fig. 1)

6-1-2. Indoor Unit

Clamp a metallic part of the unit with the lead clip of

the insulation resistance tester and measure the

resistance by placing a probe on each terminal screw

where power supply lines are connected on the

terminal plate. (Fig. 2)

6-1-3. Outdoor Unit

Clamp an aluminum plate fin or copper tube with the

lead clip of the insulation resistance tester and

measure the resistance by placing a probe on each

terminal screw on the terminal plate. (Fig. 2)

Note that the ground line terminal should be skipped

for the check.

6-1-4. Measurement of Insulation

Resistance for Electrical Parts

Disconnect the lead wires of the desired electric part

from terminal plate, capacitor, etc. Similarly disconnect

the connector. Then measure the insulation resistance.

(Figs. 3 and 4)

NOTE

Refer to Electric Wiring Diagram.

If the probe cannot enter the poles because the hole is

too narrow then use a probe with a thinner pin.

power plug

(Local supply)

Ground

probe

NOTE

The shape of the power plug may differ from that

of the air conditioner which you are servicing.

Terminal plate

Clip

Copper

tube or

metallic part

Clip

Copper

tube or

metallic part

Insulation

tester

Probe

Metallic

part

Clip

Insulation

tester

Probe

Insulation

tester

Probe

From fan motor,

compressor and

other parts

Insulation

tester

Fig. 1

Fig. 2

Fig. 3

Fig. 4