1. INTRODUCTION
1.1 Pre
fi
x
Dear customer, thank you for choosing the BDM-250 micro inverter from NEP.
We hope you will
fi
nd our products meet your need for renewable energy.
Mean
�
me, we appreciate your feedback regarding our products.
1.2 Grid-
�
ed PV System
Grid-
�
ed PV system consists of PV panels, grid-
�
ed inverter and junc
�
on boxes.
The DC output from the PV panels is converted into AC energy and feedback to
the grid through the BDM-250. BDM-250 series PV micro inverter contains
isola
�
on transformer with basic insula
�
on between PV input and AC grid output.
The PV panel terminals on BDM-250 shall not be earthed via external wiring, for
BDM-250 connects PV panel to earth via an internal earth fault interrup
�
ng 1A
fuse.
1.3 H
o
w t
o
Use This Manual
This manual provides detailed product informa
�
on and installa
�
on instruc
�
ons
for the BDM-250 micro solar inverter. Please read through this manual before
installa
�
on and opera
�
on.
WARNING:
This indicates a situa
�
on where failure to follow instruc
�
ons
may be a safety hazard or cause equipment malfunc
�
on. Use extreme
cau
�
on and follow instruc
�
ons carefully.
1.4 Label
The label is located on the side of the inverter. The informa
�
on on the label
includes technical data as well as type,
fi
rmware version and serial number of the
device. Safety instruc
�
ons on the label are listed and explained below:
Danger!
The term “danger” describes an issue which, if ignored can cause
personal injury.
A
�
en
�
on!
With the term “a
�
en
�
on” a circumstance is listed which may
cause property damage if disregarded.
Instruc
�
ons for use!
Under “Instruc
�
ons for Use“, it is pointed out that installa
�
on and
opera
�
ng instruc
�
ons are to be read and understood before
installa
�
on or repair.
Cau
�
on, hot surface!
Under “Cau
�
on, hot surface”, it should be noted that surfaces of
equipment may be hot and create a burn hazard.
Special disposal instruc
�
ons!
With “Note Separate Disposal”, it is pointed out that this product
may not be disposed of with normal garbage. An improperly
conducted disposal can lead to damage to the environment.
CE mark
The product complies with essen
�
al requirements of relevant
direc
�
ves of EU
2. SAFETY INSTRUCTION
WARNING:
PLEASE READ THIS MANUAL BEFORE INSTALLATION. ANY DAMAGE TO THE PRODUCT DUE TO NOT
FOLLOWING THIS MANUAL IS NOT COVERED BY THE WARRANTEE.
ALL THE INSTALLATION SHOULD BE DONE BY CERTIFIED ELECTRICIAN.
BESIDES THE CABLE CONNECTORS, NOTHING INSIDE THE INVERTER SHOULD BE MODIFIED.
ALL INSTALLATION SHOULD FOLLOW THE LOCAL ELECTRIC CODES. FURTHER PROTECTION ON THE
AC WIRING FROM THE INVERTERS SHOULD BE PROVIDED AND MAY BE REQUIRED BY LOCAL AND
NATIONAL WIRING REGULATIONS. THIS PROTECTION IS LIKELY TO INCLUDE RESIDUAL CURRENT
DEVICES, EARTH FAULT MONITORS AND CIRCUIT BREAKERS. THIS PRODUCT MAY CAUSE AC
CURRENT WITH A DC COMPONENT. IF A RESIDUAL CURRENT-OPERATED PROTECTIVE DEVICE
(RCD) OR A MONITORING DEVICE (RCM) IS USED FOR PROTECTION IN CASE OF DIRECT OR
INDIRECT CONTACT, ONLY AN RCD OR RCM OF TYPE B IS ALLOWED ON THE AC SIDE OF THIS
PRODUCT.
NEVER DISCONNECT PV MODULE FROM THE MICRO-INVERTER WITHOUT FIRST ISOLATING THE AC
MAINS. ALL PV CONNECTORS AND AC CONNECTORS ARE FORBIDDEN TO BE DISCONNECTED
UNDER LOAD BEFORE SWITCHING OFF THE CIRCUIT BREAKER ON THE AC BRANCH.
PLEASE CONTACT AUTHORIZED SERVICE AGENTS FOR ANY SERVICE WORK.
BDM-250 IS A GRID-TIED SOLAR INVERTER. IT MAY REQUIRE APPROVAL FROM LOCAL UTILITY
COMPANY TO CONNECT IT TO THE POWER GRID.
BDM-250 DOES NOT INCLUDE COMPONENTS THAT CAN BE SERVED BY CUSTOMERS.
WARNING:
WHEN THE PHOTOVOLTAIC ARRAY IS EXPOSED TO LIGHT, IT SUPPLIES A DC
VOLTAGE TO THE MICRO-INVERTER.
3. FCC COMPLIANCE
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protec
�
on against harmful interference in a residen
�
al
installa
�
on. This equipment generates uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instruc
�
ons, may
cause harmful interference to radio communica
�
ons. However, there is no
guarantee that interference will not occur in a par
�
cular installa
�
on. If this
equipment does cause harmful interference to radio or television recep
�
on,
which can be determined by turning the equipment o
ff
and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
●
Reorient or relocate the receiving antenna.
●
Increase the separa
�
on between the equipment and the receiver.
●
Connect the equipment into an outlet on a circuit di
ff
erent from that to
which the receiver is connected.
●
Consult the dealer or an experienced radio/TV technician for help.
Changes or modi
fi
ca
�
ons not expressly approved by the party responsible for
compliance may void the user’s authority to operate the equipment.
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