Maintenance Cleaning the Fan
SB3000US-4000US-11-SE1607 SMA America 9-1
Section 9:
Maintenance
The Sunny Boy is designed to provide many years of trouble-free service. Performing
regular maintenance will help ensure the long life and high efficiency of your
system.
Cleaning the Fan
The fan intake and handle covers should be cleaned periodically with a vacuum
cleaner. (Do not blow air into the fan areas). For deeper cleaning, the screen and/
or the fan can be removed completely.
The fan is mounted on the bottom side of the Sunny Boy. To clean or replace the
fan please follow the steps below:
1. Turn OFF the external DC disconnect or switch
the SMA DC-Disconnect to the “0“ position
and turn OFF the AC disconnect and wait 5
minutes for any residual voltages to dissipate.
2. Disconnect the Sunny Boy from both the DC
and AC connections, paying attention to the
safety instructions in section 5: Wiring the
Sunny Boy.
3. Wait for the fan to stop rotating.
4. Carefully remove the black plastic plate and filter in front of the fan with the
two plastic tabs on the upper border.
5. The fan is fastened with three plastic tabs on
the enclosure. There are two holes in front and
one on the back. The tabs are inside the
holes. You can loosen the tabs by pressing a
screwdriver against the tabs.
6. Remove the fan carefully.
7. To clean the fan and filter use a soft brush or
cloth. Do not use air pressure for cleaning the
fan. This will damage the fan.
Plastic Plate
Holes with tabs inside
To Next Page
Loading...
