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(6) Use a three wire type soldering iron including a grounding wire.
Bare copper wire (for body earth)
Working
table
Resistor of 1 M (1/2W)
Earth wire
Fig. 3. Grounding of the working table
2
Screw stop at the screwed
part using a rag plate
Soldering iron
Grounding
wire
Fig. 4. Grounding a soldering iron
Use a high insulation mode (100V, 10M or higher) when ordinary iron is to be used.
(7) In checking circuits for maintenance, inspection or some others, be careful not to have the test probes of the
measuring instrument shortcircuit a load circuit or the like.
Metal plate (of aluminium, stainless steel, etc.)
Staple
– 2 –
Summary of Contents for RAI-25NH5
Page 31: ... 29 MODEL RAI 25NH5 RAI 35NH5 WIRING DIAGRAM INDOOR UNIT ...
Page 33: ...CIRCUIT DIAGRAM MODEL RAI 25NH5 RAI 35NH5 33 ...
Page 36: ... 39 47 RAI 25NH5 RAI 35NH5 ...
Page 58: ... 68 CHECKING THE REMOTE CONTROLLER ...
Page 62: ...HITACHI PM NO 0271E Printed in Malaysia RAI 25NH5 RAI 35NH5 ...