Wire Thickness Required; Internal Factors Check; Insulation Resistance; Insulation Resistance Measurement Of Compressor - Hyundai HSH-I073NBE Service Manual

3) Wire thickness required

Rated current appliance(A)
Up to and including 6
Over 6 up to and including 10
Over 10 up to and including 16
Over 16 up to and including 25
Over 25 up to and including 32
Over 32 up to and including 40
Over 40 up to and including 63
For rated currents up to 3A, a nominal cross-sectional area of 0.5mm
does not exceed 2m.

1.2 Internal factors check

Power
Switches
supply
• Operation switch
• Rotary switch
• Remocon

1.2.1 Insulation resistance

Measure the insulation resistance between live part and dead metal part by 500V insulation resistor to
check if the insulation resistance is more than 10MΩ.

1.2.2 Insulation resistance measurement of compressor

Measure the insulation resistance of compressor between compressor terminal and dead metal part by insu-
lation resistor, and the insulation resistance should be above 10MΩ.
Compressor may change the insulation resistance while running. Accordingly, measure the insulation
resistance just after running as needed.
• Note: For R-22 used in airconditioner, the dielectric rate on liquid state is high. If a contaminant is mixed
into R-22, the electric resistance is extremely low and the poor insulation is occurred. Accordingly,
be sure to prevent contaminants from mixing into refrigerant system.
Air Conditioner Service Manual
Function parts
• Operation
indicator lamp
• Relay
• reversing coil
• Conductor
• Thermistor
64
Nominal cross-sectional area(mm
0.75
1.0
1.5
2.5
4.0
6.0
10.0
is only allowed if the length of the cord
2
Protector
• Pressure switch
• O.L.P
• Fuse
)
2
Compressor
Motor Fan