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Beschikbare talen
Beschikbare talen
3. Installation
WARNING: DC (PV) INPUT NOT ISOLATED FROM BATTERY CIRCUIT.
CAUTION: FOR PROPER TEMPERATURE COMPENSATION
THE AMBIENT CONDITION FOR CHARGER AND BATTERY MUST BE
WITHIN 5°C.
3.1 General
● Mount vertically on a non-flammable surface, with the power terminals
facing downwards. Observe a minimum clearance of 10 cm under and above
the product for optimal cooling.
● Mount close to the battery, but never directly above the battery (in order to
prevent damage due to gassing of the battery).
● Improper internal temperature compensation (e.g. ambient condition
battery and charger not within 5°C) can lead to reduced battery lifetime.
We recommend installing the Smart Battery Sense option if larger
temperature differences or extreme ambient temperature conditions
are expected (not yet functional on the 250/85 and 250/100 models).
● Battery installation must be done in accordance with the storage battery
rules of the Canadian Electrical Code, Part I.
● The battery connections (and for Tr version also PV connections) must be
guarded against inadvertent contact (e.g. install in an enclosure or install the
optional WireBox).
Tr models: use flexible multistranded copper cable for the battery and PV
connections: see safety instructions.
MC4 models: several splitter pairs may be needed to parallel the strings of
solar panels. (Maximum current through a MC4 terminal: 30A)
3.2 Grounding
● Battery grounding: the charger can be installed in a positive or negative
grounded system.
Note: apply a single ground connection (preferably close to the battery) to
prevent malfunctioning of the system.
● Chassis grounding: A separate earth path for the chassis ground is
permitted because it is isolated from the positive and negative terminal.
● The USA National Electrical Code (NEC) requires the use of an external
ground fault protection device (GFPD). These MPPT chargers do not have
internal ground fault protection. The system electrical negative should be
bonded through a GFPD to earth ground at one (and only one) location.
● The charger must not be connected with grounded PV arrays. (one ground
connection only)
● The plus and minus of the PV array should not be grounded. Ground the
frame of the PV panels to reduce the impact of lightning.
WARNING: WHEN A GROUND FAULT IS INDICATED, BATTERY
TERMINALS AND CONNECTED CIRCUITS MAY BE UNGROUNDED
AND HAZARDOUS.
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