Estun E21 - Periodic Inspection

E21 Installation Manual
30
No.
Inspection item
Standard content
Standard
specification
Treatment
3
Connection status
Check terminal
screw for loosening
Screw is not loose
Fastening
terminal screw.
4
LED display status
Check whether LED
display is correct.
LED (green) indicate
system running, LED
(red) indicate system
stop.
-
6.3 Periodic inspection
Items which require once or twice inspection every 6 months or 1 year are listed below.
In case of equipment removal or reconstruction, or any changes to wiring, inspection is
also required. Please refer to Table 6-2 for inspection content.
Table 6-2 Periodic inspection content
No.
Inspection item
Standard
content
Standard
specification
Treatment
1
Surrounding
environment
Ambient
temperature
Measure by
thermometer,
humid meter,
and measure
whether
corrosive gas
exists.
0~40℃
-
Ambient
humidity
5~95%RH
Air
No corrosive
gas
2
Voltage
Voltage among
terminals
24V DC
20~29V DC
Change
power
supply