Danfoss TripleLynx Installationshandbuch Seite 15

2. Installation
2
Note:
The inverter is protected against reversed polarity but it will not generate power until the po-
larity is corrected. To achieve optimum production, the open circuit voltage (STC) of the PV
modules must be lower than the max. input voltage of the inverter (see the specifications),
multiplied with a factor of 1.13. U
Note:
The output power from the inverter can be optimised by applying as much 'open circuit voltage'
as possible per input. However, it is important that the maximum open circuit voltage from the
PV strings does not exceed the absolute maximum that the inverter can withstand. Check the
specification of the open circuit voltage at the lowest PV module operating temperature. Also
make sure that the lowest 'open circuit voltage' is never lower than 500 V.
14
The MC4 connectors are not IP54. The intrusion of moisture may occur in the fol-
lowing situations:
1. The inverter runs in Master/Slave operation and only one PV input is being
used. In this case, the other 1-2 inputs are not connected to PV and they
are therefore open to intrusion.
2. Not all PV inputs are connected.
3. PV connectors are not fitted; for example in case of disconnection of parts
of a PV plant over a longer period of time.
In situations where the PV connectors are not fitted, a seal cap must be mounted
(included in the scope of the delivery).
, STC x 1.13 ≤ U
OC
, inv
MAX
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