ESTEEMED WRENCHES:
I'm in the process of engineering a project to add 16 new Enphase IQ6
micros to an existing 48 Enphase M215-IG system that has been
in-service about 2 years.
The original system has a NEMA-3R outdoor AC Combiner Panel (ACCP) with
each of the (3) M215 AC strings landing on a separate 2-pole 20A
circuit breaker.
The Enlighten Envoy is mounted in a NEMA-4 plastic enclosure below the
ACCP, and is powered by a 1-pole 15A breaker in the ACCP.
My intent is to land the new 16-IQ6 string on a new 20A breaker in the
ACCP, and to power its Envoy (if needed) also from the ACCP.
In studying Enphase documents:
(A) IQ6 micros have to be monitored by an IQ-Envoy.
(B) Envoy uses a 1-pole "L1, "N", and "EGC" a dedicated NEMA-5R
receptacle branch circuit for power supply and its AC comms modem.
(C) IQ-Envoy uses "L1, "L2, and "N", for power supply and its AC
comms modem, and is wired directly to its dedicated 2-pole breaker.
My questions:
1. Can I replace the existing Envoy with a new IQ-Envoy, and monitor
the all 64 micros (48 existing M215s; 16 new IQ6s) with the new
IQ-Envoy?
2. If the answer to "1" is yes, that's what I would like to do.
3. If the answer to "1" is no, can I still land the new IQ6 string
on the existing ACCP, or do I need to place another ACCP just for
the new IQ6 string and any future growth?
4. If the answer to "1" is no, can the existing Envoy and the new
IQ-Envoy both be powered from the same ACCP?
5. If both the existing Envoy and the new IQ-Envoy can co-exist at
the same customer site, will the Enlighten software monitoring
portal aggregate all 64 Enphase micros into a single unified
production view, or will two separate production views be required?
Thanks for your help!
Gary Willett PE
Icarus Engineering / Solar Services LLC
Irving TX
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