Maximum number of module strings that are allowed to be switched in
parallel: 2 current (fuse rating / (short-circuit * 1.25) + 1)
|
Make sure that only solar modules with the same amperage (I
MPP
) are
connected in series and make sure that the string voltages are the same.
Even at low temperatures, never exceed the maximum permissible
system voltage of the solar modules.
|
Maximum number of modules that are allowed to be switched in series: 20
(maximum system voltage / (open circuit voltage * 1.25))
|
Make sure that the number and connection of the solar modules match
the electrical values specified by the devices connected to the
photovoltaic system.
|
Use only 90ºC wet-rated, sunlight resistant, stranded or solid conductor
cables for all module and interconnect wiring that may be exposed to
weather.
|
Make sure that the polarity is correct.
3.3.4.
Connecting the photovoltaic module
On the rear of the solar module, there is a connection box with the connection
cables, the plug and the socket.
Connection cable length
1000 mm
Connection cable cross section
3.3
mm
2
Allowable ambient temperature range for
cables
From -40
°C
To
+85
°C
All details for wiring should be in accordance with NEC guidelines and the
grounding method of the frame of arrays shall comply with the NEC, article 250.
3.3.5.
Grounding
For grounding requirements, please refer to section Grounding Requirements
(UL).
4. Maintenance and care
The solar modules are low-maintenance modules. However, Conergy
recommends that a visual inspection of the mechanical and electrical
connections be performed once a year to detect any damage.
Dirt on the solar modules reduces the output and the yield. If the solar modules
are installed with an inclination angle of more than 15°, they will generally be
adequately cleaned by the rain.
Damage to the solar module surface can occur by scratching
or extreme differences in temperature.
|
Only use pH neutral liquid cleaner, even if there is excessive
dirt build-up.
|
Do not use abrasive cleaning agents.
|
Ensure cleaning solutions are at roughly the same temperature
as the solar module surface.
|
Wipe the solar module surface with water and a soft cloth.
|
Never attempt to rub or scratch off dirt particles.
5. Removal
Risk of electric shock.
|
Do not touch any bare connection parts.
|
Only use insulated tools.
1.
Disconnect the inverter from the supply network on the AC side so that the
photovoltaic system has no load.
2.
Disconnect the photovoltaic system from the inverter at the cut-off point on
the DC side.
3.
Make sure that the system is not supplied with voltage.
4.
Remove the photovoltaic system in the same way as it was installed;
observe the safety instructions.
6. Disposal
Do not dispose of old or defective solar modules with normal house hold waste.
Please ask your installer, dealer or Conergy about disposal.
4. Maintenance and care
4
Installation Manual
Conergy
PH 245-270P
4
