Routine Maintenance; Cleaning Air Inlet And Outlet - Sungrow SG200HX-US User Manual

User Manual
step 2 Rotate the DC switch to the "OFF" position for disconnecting all of the PV string inputs.
step 3 Wait about 5 minutes until the capacitors inside the inverter completely discharge.
step 4 Ensure that the DC cable is current-free with a current clamp.
- - End

8.2.3 Routine Maintenance

Item
Device clean
Fans
Cable entry
Electrical
connection
Surrounding
vegetation

8.2.4 Cleaning Air Inlet and Outlet

A significant amount of heat is generated when the inverter is working.
In order to maintain good ventilation, please check to make sure the air inlet and outlet are
not blocked.
Clean the air inlet and outlet with soft brush or vacuum cleaner if necessary.
Method
Check whether the air outlet and heat
sink are blocked by dust and other
objects.
Check if the air inlet and outlet are
normal. Clean the air inlet and outlet,
if necessary.
Check whether there is a fan alarm on
the App.
Check whether there is any abnormal
noise when the fan is rotating.
Clean or replace the fans if necessary
(see the following section).
Check whether the cable entry is in-
sufficiently sealed or the gap is exces-
sively large, and reseal the entry
when necessary.
Check whether cables are loose or fall
off.
Check whether the cable is damaged,
especially the part in contact with the
metal enclosure.
Perform inspection and weeding be-
fore vegetation wilts.
Clean the site promptly after weeding
and do not pile the weed up around
the inverter.
8 Troubleshooting and Maintenance
Period
Six months to a year
(depend on the dust con-
tents in air)
Once a year
Once a year
Six months to a year
Based on the local wilting
season
93