General Checklist - LG RCWFH Series Instruction Manual

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4-13. General Checklist

Inspec- Inspection
tion categories
Is there any dust?
Ambient
Is the ambient temperature and humidity ade-
environ-
quate?
All
ment
Is there any abnormal vibration?
Equipment Is there any vibration or noise?
Input volt- Is the main circuit voltage normal?
age Is the main circuit voltage normal?
Disconnect all power before testing insulation
resistance.
Insulation Insulation between the transformer 1st side and
resistance grounding bus-bar.
test When measuring the resistance, disassemble all
grounding wires connected to grounding bus–
bar.
Overheating Is there any trace of overheating in each component?
Fixed parts Is there any missing fixed parts?
Conduc- Is there any contamination of conductor?
tor/wire Is there any damage in the wires?
Main
Terminal Is there any damaged part?
circuit
/ Con-
Relay Is there any oscillation during operation?
trol
/contactor Is there any damage on the connector?
circuit
Space Is there any color change of the heater compo-
heater nent in starter panel?
Sensor & Is there any disconnection or short circuit?
switch Is there any damage in the contact part?
Is there any rust on the connection part?
Is there any damage in the grounding conductor?
Grounding Is there any noise in the grounding system?
Note: Grounding resistance shall meet the require-
ments of the related codes and standards.
Phase advance
Is the expansion under the limit?
capacitor
Cooling fan Is there any abnormal noise? (Control Panel)
Con-
Is the safety function in normal operation?
trol
Safety func- Is the start-up sequence normally carried out?
tion Is the stop sequence normally carried out?
func-
Is the temp. regulation within the specification?
tion
Analog
Is the displayed value correct?
value
Dis-
play
Indication Is the indication lamp displayed with the normal
Lamp brightness?
Inspection items
Table 7. General Checklists
Daily 1 year 2 years
Refer to Chapter 1. Environ-
Refer to Chapter 1. Environ-
*Low voltage (600Vac or
less) DC 500V class mega,
it shall be 5MΩ or more.
*High voltage (exceeding
DC 1000V class mega, it
shall be 30MΩ or more.
Criteria
mental conditions
No abnormality
ment
600Vac, 7000Vac)
No abnormality
No abnormality
No abnormality
No abnormality
No abnormality
No abnormality
No abnormality
No abnormality
No abnormality
No abnormality
Normal control
No abnormality
No abnormality