HV Disconnecting Combiner Manual

MNPVHV Disco Instructions (continued)
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Reconfiguring MNPVHV Combiners continued: MNPV8HV
PV Positive label changed to
PV Negative label (step 3).
Install Negative out block with screws
removed in step 1. Tighten onto busbars.
Refer to torque chart on page 4.
Step 4: Reinstall Negative block
These terminal blocks are not used in this
configuration. If desired you may remove
them and use elsewhere, otherwise you may
leave them installed here. Be sure to seal
any holes left open.
Step 5: Reinstall block
PV Positive Output
busbar jumper
removed (step 2).
When you have finished the
conversion it would be a
good idea to compare your
result with the photo (Left) to
be sure that all steps were
completed correctly. You
should now have a combiner
ready for four Non-Isolated
inputs (Fuses on each
Positive and Negative string
input with disconnects on
Positive and Negative
combined outputs).
Leftover parts should include
the PV Positive output busbar
jumper removed in step 2,
and the PV Negative output
busbar removed in step 3,
MNPV8HV Configured as Non-Isolated
Install PV Negative
Output busbar (step 3).
PV Positive terminal
block / Negative block
and busbar – are not used
in this configuration.
They are installed here to
maintain watertightness.
they may be removed if
the mounting holes are
sealed.