Re: [RE-wrenches] Best practices for conduit penetration on roof

[Gary Willett]

JASON:

The reference temperature for the Square-D breakers is 40C/104F, as 
opposed to 20C/68F for the ABB breakers. The possibility of a "nuisance 
trip" due to derating would occur sooner for a 20A ABB breaker than for 
a 20A QO/QOB breaker.


I received a follow-up e-mail earlier today from Steve Capozzi of SolaDeck:

    Original Message  


   Subject: RE: SolaDeck
   Date:Tue, 27 Nov 2012 07:20:17 -0600
   From:Steve Capozzi 
   Organization:RSTC Enterprises
   To:  


   Gary,

 I sent ABB engineering an e-mail yesterday to see if they have any
   new items with higher ambient temps.

   The breakers we have were the highest at the time we started into AC
   systems.

   We have never had a issue in the field with these breakers.

 I will keep you posted.

   steve

   Steve Capozzi
   President
   RSTC Enterprises Inc
   2214 Heimstead Road
   Eau Claire, Wi 54703
   866-367-7782
   715-830-9997

 I'll keep you posted with what I find out.

Regards,


Gary Willett, PE
Icarus Engineering LLC

Icarus Solar Services LLC

On 11/27/2012 8:30 AM, Jason Szumlanski wrote:
We're pretty fortunate that a roof mounted readily accessible 
disconnect has not been a sticking point locally. I would argue that 
the AC disconnect is still the trunk cable connector, which can be not 
readily accessible. The AC breaker carrying the combined circuit 
output in the main distribution panel or the fusible disconnect switch 
if performing a supply side connection would qualify as the readily 
accessible disconnect. If you install Enphase I'm sure you are 
familiar with the manufacturer's excellent white paper on this issue.


I hear what you are saying about the temperature concerns, but there 
are many installations that have far fewer than 17 inverters per 
string. A typical residential installation can be split into two or 
three branch circuits (thank you, Andrew, for keeping me accurate on 
the string/circuit thing!) The temp concern is definitely something to 
explore further. There is also the thermal interference factor to take 
into account for multiple breakers that Gary did not mention. The full 
datasheet is here:


http://www05.abb.com/global/scot/scot209.nsf/veritydisplay/11d7d0032b466358c125712400340107/$file/2CDC002052D0203_UL489.pdf

As for the "interior rated" breaker comment, typical AC branch circuit 
breakers (i.e. Sq D QO) are mounted in wet location NEMA 3R boxes all 
the time on the exterior of a building. I'm not sure I understand this 
concern. The temperature derating curve is also similar for ABB and QO 
breakers. QO Datasheet here:


http://static.schneider-electric.us/docs/Circuit%20Protection/Miniature%20Circuit%20Breakers/QO-QOB%20Circuit%20Breakers/0730CT9801R108.pdf

I definitely want to be 100% sure the SolaDeck and breakers are 
appropriately rated before proceeding. Any comments welcomed...


*Jason Szumlanski*//

/Fafco Solar/



On Mon, Nov 26, 2012 at 6:37 PM, Gary Willett 
mailto:g...@icarussolarservices.com>> 
wrote:


JASON:

I talked to Steve Capozzi of SolaDeck and he sent me additional
info about the circuit breakers:

_Manufacturer_:  ABB

_Terminal Temp Rating_:  75C / 167F

_Reference Temperature_: 20C / 68F

_Ambient Temp Derating_:

30C/86F = 18.7A
40C/104F = 17.3A
50C/122F = 15.8A
60C/140F = 14.1A
70C/158F = 12.2A

My concern is that we may be attempting to use an interior rated
AC breaker in a roof-deck-mounted NEMA3-R enclosure.

In an Enphase application, with the maximum of 17 inverters per AC
Source Circuit, the continuous current will be 0.9A x 17 x 1.25 =
19.1A. This exceeds the 30C/86F trip current of 18.7A.

The interior temperature of the SolaDeck could very likely
approach the 60C/140F trip current of 14.1A.

It seems to me that "nuisance trips" could be a high probability
event.

Does anyone have any field experience using this Soladeck option
for a AC Source Circuit Combiner Box (SCCB)?

Another issue, at least in some jurisdictions, is the requirement
for a roof-top AC Disconnect.

The SolaDeck, when used as an AC SCCB, may not meet the NEC
Article 100 requirements in some jurisdictions for "readily
accessible" because a tool is required to open it.

Regards,


Gary Willett, PE
Icarus Engineering LLC

Icarus Solar Services LLC

On 11/26/2012 2:21 PM, Jason Szumlanski wrote:

I did get some pictures and info from Soladeck. Here are some links:

Pics:

https://docs.google.com/open?id=1BpiL-1SdSNNsj4wPMQrFCLHH7JT2dek_KftSJl06QLqc0yhJ_1t5oij0aEA6

https://docs.google.com/open?id=1cVuhZGeQNHL1IvGvNBa7v93oZyGBvjxCv5yq4AmoyJeDAITxvgMqgECR2yTv

https://docs.google.com/open?id=1umslTplnFyZG1eNCZE-MMi_OqrSeirFCPRBl9mFNZJ2gQkBjM5LEXnaPKy2l
Specs:

https://docs.google.com/open?id=13KLAuxUHOR9al7-36reDSJJ7

Re: [RE-wrenches] Best practices for conduit penetration on roof

[Jason Szumlanski]

We're pretty fortunate that a roof mounted readily accessible disconnect
has not been a sticking point locally. I would argue that the AC disconnect
is still the trunk cable connector, which can be not readily accessible.
The AC breaker carrying the combined circuit output in the main
distribution panel or the fusible disconnect switch if performing a supply
side connection would qualify as the readily accessible disconnect. If you
install Enphase I'm sure you are familiar with the manufacturer's excellent
white paper on this issue.

I hear what you are saying about the temperature concerns, but there are
many installations that have far fewer than 17 inverters per string. A
typical residential installation can be split into two or three branch
circuits (thank you, Andrew, for keeping me accurate on the string/circuit
thing!) The temp concern is definitely something to explore further. There
is also the thermal interference factor to take into account for multiple
breakers that Gary did not mention. The full datasheet is here:

http://www05.abb.com/global/scot/scot209.nsf/veritydisplay/11d7d0032b466358c125712400340107/$file/2CDC002052D0203_UL489.pdf

As for the "interior rated" breaker comment, typical AC branch circuit
breakers (i.e. Sq D QO) are mounted in wet location NEMA 3R boxes all the
time on the exterior of a building. I'm not sure I understand this concern.
The temperature derating curve is also similar for ABB and QO breakers. QO
Datasheet here:

http://static.schneider-electric.us/docs/Circuit%20Protection/Miniature%20Circuit%20Breakers/QO-QOB%20Circuit%20Breakers/0730CT9801R108.pdf

I definitely want to be 100% sure the SolaDeck and breakers are
appropriately rated before proceeding. Any comments welcomed...

*Jason Szumlanski** *

*Fafco Solar*


On Mon, Nov 26, 2012 at 6:37 PM, Gary Willett
wrote:

>  JASON:
>
> I talked to Steve Capozzi of SolaDeck and he sent me additional info about
> the circuit breakers:
>
> *Manufacturer*:  ABB
>
> *Terminal Temp Rating*:  75C / 167F
>
> *Reference Temperature*: 20C / 68F
>
> *Ambient Temp Derating*:
>
> 30C/86F = 18.7A
> 40C/104F = 17.3A
> 50C/122F = 15.8A
> 60C/140F = 14.1A
> 70C/158F = 12.2A
>
>  My concern is that we may be attempting to use an interior rated AC
> breaker in a roof-deck-mounted NEMA3-R enclosure.
>
> In an Enphase application, with the maximum of 17 inverters per AC Source
> Circuit, the continuous current will be 0.9A x 17 x 1.25 = 19.1A. This
> exceeds the 30C/86F trip current of 18.7A.
>
> The interior temperature of the SolaDeck could very likely approach the
> 60C/140F trip current of 14.1A.
>
> It seems to me that "nuisance trips" could be a high probability event.
>
> Does anyone have any field experience using this Soladeck option for a AC
> Source Circuit Combiner Box (SCCB)?
>
> Another issue, at least in some jurisdictions, is the requirement for a
> roof-top AC Disconnect.
>
> The SolaDeck, when used as an AC SCCB, may not meet the NEC Article 100
> requirements in some jurisdictions for "readily accessible" because a tool
> is required to open it.
>
>   Regards,
>
>
> Gary Willett, PE
> Icarus Engineering LLC
>   Icarus Solar Services LLC
>
> 
>  On 11/26/2012 2:21 PM, Jason Szumlanski wrote:
>
> I did get some pictures and info from Soladeck. Here are some links:
>
>  Pics:
>
> https://docs.google.com/open?id=1BpiL-1SdSNNsj4wPMQrFCLHH7JT2dek_KftSJl06QLqc0yhJ_1t5oij0aEA6
>
> https://docs.google.com/open?id=1cVuhZGeQNHL1IvGvNBa7v93oZyGBvjxCv5yq4AmoyJeDAITxvgMqgECR2yTv
>
> https://docs.google.com/open?id=1umslTplnFyZG1eNCZE-MMi_OqrSeirFCPRBl9mFNZJ2gQkBjM5LEXnaPKy2l
> Specs:
>
> https://docs.google.com/open?id=13KLAuxUHOR9al7-36reDSJJ7IMnqV3ANPnJILPnrj2xcAi0ksRj67ifKIe7R
>
> https://docs.google.com/open?id=1kvPFcDc1vruS3W_aONlXyIHm1T8-qi4vTpTwGGJ7H0eIwuZ-5e6zrM1CcND5
>
> https://docs.google.com/open?id=1lM8FtYl9HiYohru32UA_Gb1tXZKZ5iw-8tnSu1Un6g4vcklLL-DK1qLPMdsB
>
>  I was told Soligent can source the combiners for you (and me).
>
>   *Jason Szumlanski** *
>
> *Fafco Solar* 
> 
>
>
> On Mon, Nov 26, 2012 at 1:50 PM, Jason Szumlanski wrote:
>
>> I just called Soladeck and they are sending me some more info on
>> availability. I'll pass it along when I get it. I didn't realize they made
>> an AC roof mounted string combiner solution. That's a huge help for 2 or 3
>> string Enphase installations (they make both combiners).
>>
>>  While on the subject, we recently started using the Enphase cable
>> couple with Type TC-ER cable to extend cabling to junction boxes when
>> necessary... No more wasting trunk cable connectors! I suppose Type TC-ER
>> could be used all the way to the main distribution panel, thereby
>> eliminating junctions on the roof, but I haven't looked into the
>> cost/benefit of that idea.
>>
>>*Jason Szumlanski*
>>
>> *Fafco Solar*
>>
>>

Re: [RE-wrenches] Best practices for conduit penetration on roof

[Andrew Truitt]

Not to be too nit-picky, but I think its a good idea to distinguish between
branch circuits (parallel connections) and strings (series connections).
Enphase inverters are wired in parallel while string or central inverters
require modules to be wired in series (with parallel strings as an
option).  I know you know this Jason, just wanted to clarify.


For a brighter energy future,


Andrew Truitt
NABCEP Certified PV Installer™ (ID# 032407-66)

Principal
Truitt Renewable Energy Consulting

(202) 486-7507

http://www.linkedin.com/pub/andrew-truitt/8/622/713



"Don't get me wrong: I love nuclear energy! It's just that I prefer fusion
to fission. And it just so happens that there's an enormous fusion reactor
safely banked a few million miles from us. It delivers more than we could
ever use in just about 8 minutes. And it's wireless!"

~William McDonough







On Mon, Nov 26, 2012 at 11:50 AM, Jason Szumlanski wrote:

> I just called Soladeck and they are sending me some more info on
> availability. I'll pass it along when I get it. I didn't realize they made
> an AC roof mounted string combiner solution. That's a huge help for 2 or 3
> string Enphase installations (they make both combiners).
>
> While on the subject, we recently started using the Enphase cable couple
> with Type TC-ER cable to extend cabling to junction boxes when necessary...
> No more wasting trunk cable connectors! I suppose Type TC-ER could be used
> all the way to the main distribution panel, thereby eliminating junctions
> on the roof, but I haven't looked into the cost/benefit of that idea.
>
> *Jason Szumlanski*
>
> *Fafco Solar*
>
>
>
> On Mon, Nov 26, 2012 at 1:26 PM, Gary Willett <
> g...@icarussolarservices.com> wrote:
>
>>  NICK:
>>
>> I could not find the AC model numbers you provided on the SolaDeck web site.
>> Do you know the manufacturer, and the voltage and temperature ratings,
>> for the 2-pole 20A AC breakers?
>>
>>   Regards,
>>
>>
>> Gary Willett, PE
>> Icarus Engineering LLC
>>
>> Icarus Solar Services LLC
>> 
>>
>>   On 11/26/2012 11:54 AM, Nick Soleil wrote:
>>
>> Hi wrenches;
>>
>> SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at 240Vac.
>>
>> It can be ordered with DIN rail mounted AC breakers and a combiner kit.
>> The 2 - 20A circuit combiner kit is part 0760K2AC.
>>
>> I'd recommend checking with a distributor or on SolaDeck's website for
>> the most current information.
>>
>> Nick Soleil,
>> Enphase Energy
>>
>>
>> On Sun, Nov 25, 2012 at 7:44 AM, Kent Osterberg wrote:
>>
>>> My understanding has been that the Soladeck has only been listed for DC
>>> wiring. Perhaps they have a manufacturer rep on RE-wrenches that can
>>> clarify.
>>>
>>> Kent Osterberg
>>> Blue Mountain Solar, Inc.
>>> www.bluemountainsolar.com
>>>
>>>
>>>
>>> On 11/25/2012 6:20 AM, Dave Palumbo wrote:
>>>
>>>> Rich,
>>>>
>>>> We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a
>>>> flashed
>>>> penetration. Can use for combining, or simply as a pass through box.
>>>>
>>>> Dave
>>>>
>>>> David Palumbo
>>>> Independent Power LLC
>>>> 462 Solar Way Drive
>>>> Hyde Park, VT 05655
>>>> www.independentpowerllc.com
>>>> NABCEP Certified PV Installer
>>>> Vermont Solar Partner
>>>> 25 Years Experience, (802) 888-7194
>>>>
>>>>
>>>>
>>>>
>>>> -Original Message-
>>>> From: re-wrenches-boun...@lists.re-wrenches.org
>>>> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich
>>>> Nicol
>>>> Sent: Sunday, November 25, 2012 8:11 AM
>>>> To: 'RE-wrenches'
>>>> Subject: [RE-wrenches] Best practices for conduit penetration on roof
>>>>
>>>> Wrenches,
>>>> We typically run conduit for roof mounts over the edge of the roof to
>>>> the
>>>> eaves, rather than penetrate the roof whenever possible. An upcoming
>>>> installation on an freshly asphalt shingled roof requires that we
>>>> penetrate
>>>> the roof for the conduit run (Enphase). I'm wondering if there are any
>>>> suggestions for preferred flashing products and best known practices.
>>>> It's
>>>> always seemed to me t

Re: [RE-wrenches] Best practices for conduit penetration on roof

[Gary Willett]

  <http://www.independentpowerllc.com>
NABCEP Certified PV Installer
Vermont Solar Partner
25 Years Experience, (802) 888-7194





-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>
[mailto:re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>]
On Behalf Of Rich Nicol
        Sent: Sunday, November 25, 2012 8:11 AM
    To: 'RE-wrenches'
Subject: [RE-wrenches] Best practices for conduit
penetration on roof

Wrenches,
We typically run conduit for roof mounts over the
edge of the roof to the
eaves, rather than penetrate the roof whenever
possible. An upcoming
installation on an freshly asphalt shingled roof
requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering
if there are any
suggestions for preferred flashing products and best
known practices. It's
always seemed to me that the typical Oatey type
flashing dries and cracks
eventually.
Thanks for your insights..
Rich










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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Jason Szumlanski]

I did get some pictures and info from Soladeck. Here are some links:

Pics:
https://docs.google.com/open?id=1BpiL-1SdSNNsj4wPMQrFCLHH7JT2dek_KftSJl06QLqc0yhJ_1t5oij0aEA6
https://docs.google.com/open?id=1cVuhZGeQNHL1IvGvNBa7v93oZyGBvjxCv5yq4AmoyJeDAITxvgMqgECR2yTv
https://docs.google.com/open?id=1umslTplnFyZG1eNCZE-MMi_OqrSeirFCPRBl9mFNZJ2gQkBjM5LEXnaPKy2l
Specs:
https://docs.google.com/open?id=13KLAuxUHOR9al7-36reDSJJ7IMnqV3ANPnJILPnrj2xcAi0ksRj67ifKIe7R
https://docs.google.com/open?id=1kvPFcDc1vruS3W_aONlXyIHm1T8-qi4vTpTwGGJ7H0eIwuZ-5e6zrM1CcND5
https://docs.google.com/open?id=1lM8FtYl9HiYohru32UA_Gb1tXZKZ5iw-8tnSu1Un6g4vcklLL-DK1qLPMdsB

I was told Soligent can source the combiners for you (and me).

*Jason Szumlanski** *

*Fafco Solar* 
<http://www.wisestamp.com/apps/wordpress?utm_source=extension&utm_medium=email&utm_term=wordpress&utm_campaign=apps>


On Mon, Nov 26, 2012 at 1:50 PM, Jason Szumlanski wrote:

> I just called Soladeck and they are sending me some more info on
> availability. I'll pass it along when I get it. I didn't realize they made
> an AC roof mounted string combiner solution. That's a huge help for 2 or 3
> string Enphase installations (they make both combiners).
>
> While on the subject, we recently started using the Enphase cable couple
> with Type TC-ER cable to extend cabling to junction boxes when necessary...
> No more wasting trunk cable connectors! I suppose Type TC-ER could be used
> all the way to the main distribution panel, thereby eliminating junctions
> on the roof, but I haven't looked into the cost/benefit of that idea.
>
> *Jason Szumlanski*
>
> *Fafco Solar*
>
>
>
> On Mon, Nov 26, 2012 at 1:26 PM, Gary Willett <
> g...@icarussolarservices.com> wrote:
>
>>  NICK:
>>
>> I could not find the AC model numbers you provided on the SolaDeck web site.
>> Do you know the manufacturer, and the voltage and temperature ratings,
>> for the 2-pole 20A AC breakers?
>>
>>   Regards,
>>
>>
>> Gary Willett, PE
>> Icarus Engineering LLC
>>
>> Icarus Solar Services LLC
>> 
>>
>>   On 11/26/2012 11:54 AM, Nick Soleil wrote:
>>
>> Hi wrenches;
>>
>> SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at 240Vac.
>>
>> It can be ordered with DIN rail mounted AC breakers and a combiner kit.
>> The 2 - 20A circuit combiner kit is part 0760K2AC.
>>
>> I'd recommend checking with a distributor or on SolaDeck's website for
>> the most current information.
>>
>> Nick Soleil,
>> Enphase Energy
>>
>>
>> On Sun, Nov 25, 2012 at 7:44 AM, Kent Osterberg wrote:
>>
>>> My understanding has been that the Soladeck has only been listed for DC
>>> wiring. Perhaps they have a manufacturer rep on RE-wrenches that can
>>> clarify.
>>>
>>> Kent Osterberg
>>> Blue Mountain Solar, Inc.
>>> www.bluemountainsolar.com
>>>
>>>
>>>
>>> On 11/25/2012 6:20 AM, Dave Palumbo wrote:
>>>
>>>> Rich,
>>>>
>>>> We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a
>>>> flashed
>>>> penetration. Can use for combining, or simply as a pass through box.
>>>>
>>>> Dave
>>>>
>>>> David Palumbo
>>>> Independent Power LLC
>>>> 462 Solar Way Drive
>>>> Hyde Park, VT 05655
>>>> www.independentpowerllc.com
>>>> NABCEP Certified PV Installer
>>>> Vermont Solar Partner
>>>> 25 Years Experience, (802) 888-7194
>>>>
>>>>
>>>>
>>>>
>>>> -Original Message-
>>>> From: re-wrenches-boun...@lists.re-wrenches.org
>>>> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich
>>>> Nicol
>>>> Sent: Sunday, November 25, 2012 8:11 AM
>>>> To: 'RE-wrenches'
>>>> Subject: [RE-wrenches] Best practices for conduit penetration on roof
>>>>
>>>> Wrenches,
>>>> We typically run conduit for roof mounts over the edge of the roof to
>>>> the
>>>> eaves, rather than penetrate the roof whenever possible. An upcoming
>>>> installation on an freshly asphalt shingled roof requires that we
>>>> penetrate
>>>> the roof for the conduit run (Enphase). I'm wondering if there are any
>>>> suggestions for preferred flashing products and best known practices.
>>>> It's
>>>> always seemed to me that the typical Oatey type flashing dries and
>>>> cracks
>>>> eventually.
>>>> Thanks for your insights..
>>>> Rich
>>>>
>>>>
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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Jason Szumlanski]

I just called Soladeck and they are sending me some more info on
availability. I'll pass it along when I get it. I didn't realize they made
an AC roof mounted string combiner solution. That's a huge help for 2 or 3
string Enphase installations (they make both combiners).

While on the subject, we recently started using the Enphase cable couple
with Type TC-ER cable to extend cabling to junction boxes when necessary...
No more wasting trunk cable connectors! I suppose Type TC-ER could be used
all the way to the main distribution panel, thereby eliminating junctions
on the roof, but I haven't looked into the cost/benefit of that idea.

*Jason Szumlanski*

*Fafco Solar*



On Mon, Nov 26, 2012 at 1:26 PM, Gary Willett
wrote:

>  NICK:
>
> I could not find the AC model numbers you provided on the SolaDeck web site.
> Do you know the manufacturer, and the voltage and temperature ratings,
> for the 2-pole 20A AC breakers?
>
>   Regards,
>
>
> Gary Willett, PE
> Icarus Engineering LLC
>
> Icarus Solar Services LLC
> 
>
>   On 11/26/2012 11:54 AM, Nick Soleil wrote:
>
> Hi wrenches;
>
> SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at 240Vac.
>
> It can be ordered with DIN rail mounted AC breakers and a combiner kit.
> The 2 - 20A circuit combiner kit is part 0760K2AC.
>
> I'd recommend checking with a distributor or on SolaDeck's website for the
> most current information.
>
> Nick Soleil,
> Enphase Energy
>
>
> On Sun, Nov 25, 2012 at 7:44 AM, Kent Osterberg wrote:
>
>> My understanding has been that the Soladeck has only been listed for DC
>> wiring. Perhaps they have a manufacturer rep on RE-wrenches that can
>> clarify.
>>
>> Kent Osterberg
>> Blue Mountain Solar, Inc.
>> www.bluemountainsolar.com
>>
>>
>>
>> On 11/25/2012 6:20 AM, Dave Palumbo wrote:
>>
>>> Rich,
>>>
>>> We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a
>>> flashed
>>> penetration. Can use for combining, or simply as a pass through box.
>>>
>>> Dave
>>>
>>> David Palumbo
>>> Independent Power LLC
>>> 462 Solar Way Drive
>>> Hyde Park, VT 05655
>>> www.independentpowerllc.com
>>> NABCEP Certified PV Installer
>>> Vermont Solar Partner
>>> 25 Years Experience, (802) 888-7194
>>>
>>>
>>>
>>>
>>> -Original Message-
>>> From: re-wrenches-boun...@lists.re-wrenches.org
>>> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich
>>> Nicol
>>> Sent: Sunday, November 25, 2012 8:11 AM
>>> To: 'RE-wrenches'
>>> Subject: [RE-wrenches] Best practices for conduit penetration on roof
>>>
>>> Wrenches,
>>> We typically run conduit for roof mounts over the edge of the roof to the
>>> eaves, rather than penetrate the roof whenever possible. An upcoming
>>> installation on an freshly asphalt shingled roof requires that we
>>> penetrate
>>> the roof for the conduit run (Enphase). I'm wondering if there are any
>>> suggestions for preferred flashing products and best known practices.
>>> It's
>>> always seemed to me that the typical Oatey type flashing dries and cracks
>>> eventually.
>>> Thanks for your insights..
>>> Rich
>>>
>>>
>> ___
>> List sponsored by Home Power magazine
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
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> --
>
> Cordially,
>
> *Nick Soleil*
>
> *Field Applications Engineer
> *
>
> *Enphase Energy*
>
> Mobile: (707) 321-2937
>
>
> **
>
> *Enphase Commercial Solar.* 
> *Limitless.*<http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012>
>
> *
> *<http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012>
>
> 1420 North McDowell
>
> Petaluma, CA 94954
>
> www.enphase.com <http://www.enphaseenergy.com/>
>
> P: (707) 763-4784 x7267
>
> F: (707) 763-0784
>
> E: nsol...@enphaseenergy.com
>
>  [im

Re: [RE-wrenches] Best practices for conduit penetration on roof

[Gary Willett]

  
  
NICK:

I could not find the AC model numbers you provided on the
SolaDeck web site. Do you know the
manufacturer, and the voltage and
temperature ratings, for the 2-pole 20A AC breakers?

  
  
















  
  Regards,


Gary Willett, PE
Icarus Engineering LLC
  
  
  Icarus Solar Services LLC


  

  
  On 11/26/2012 11:54 AM, Nick Soleil wrote:

Hi wrenches;
  
  SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at
  240Vac.
  
  It can be ordered with DIN rail mounted AC breakers and a combiner
  kit.  The 2 - 20A circuit combiner kit is part 0760K2AC.
  
  I'd recommend checking with a distributor or on SolaDeck's website
  for the most current information.
  
  Nick Soleil,
  Enphase Energy
  

On Sun, Nov 25, 2012 at 7:44 AM, Kent
  Osterberg <k...@coveoregon.com>
  wrote:
  My
understanding has been that the Soladeck has only been
listed for DC wiring. Perhaps they have a manufacturer rep
on RE-wrenches that can clarify.

Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com

  


On 11/25/2012 6:20 AM, Dave Palumbo wrote:

  Rich,
  
  We have been using SolaDeck PV roof mount enclosure.
  NEMA 3R with a flashed
  penetration. Can use for combining, or simply as a
  pass through box.
  
  Dave
  
  David Palumbo
  Independent Power LLC
  462 Solar Way Drive
  Hyde Park, VT 05655
  www.independentpowerllc.com
  NABCEP Certified PV Installer
  Vermont Solar Partner
  25 Years Experience, (802) 888-7194
  
  
    
  
  -Original Message-
  From: re-wrenches-boun...@lists.re-wrenches.org
  [mailto:re-wrenches-boun...@lists.re-wrenches.org]
  On Behalf Of Rich Nicol
  Sent: Sunday, November 25, 2012 8:11 AM
  To: 'RE-wrenches'
          Subject: [RE-wrenches] Best practices for conduit
          penetration on roof
  
  Wrenches,
  We typically run conduit for roof mounts over the edge
  of the roof to the
  eaves, rather than penetrate the roof whenever
  possible. An upcoming
  installation on an freshly asphalt shingled roof
  requires that we penetrate
  the roof for the conduit run (Enphase). I'm wondering
  if there are any
  suggestions for preferred flashing products and best
  known practices. It's
  always seemed to me that the typical Oatey type
  flashing dries and cracks
  eventually.
  Thanks for your insights..
  Rich
  


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-- 
Cordially,
Nick Soleil
Field Applications
  Engineer

Enphase Energy
Mobile: (707) 321-2937

  
Enphase
  Commercial Solar. Limitless.

  
1420 North McDowell
  
Petaluma, CA 94954

www.enphase.com
P: (707) 763-4784 x7267
F: (707) 7

Re: [RE-wrenches] Best practices for conduit penetration on roof

[Nick Soleil]

Hi wrenches;

SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at 240Vac.

It can be ordered with DIN rail mounted AC breakers and a combiner kit.
The 2 - 20A circuit combiner kit is part 0760K2AC.

I'd recommend checking with a distributor or on SolaDeck's website for the
most current information.

Nick Soleil,
Enphase Energy


On Sun, Nov 25, 2012 at 7:44 AM, Kent Osterberg  wrote:

> My understanding has been that the Soladeck has only been listed for DC
> wiring. Perhaps they have a manufacturer rep on RE-wrenches that can
> clarify.
>
> Kent Osterberg
> Blue Mountain Solar, Inc.
> www.bluemountainsolar.com
>
>
>
> On 11/25/2012 6:20 AM, Dave Palumbo wrote:
>
>> Rich,
>>
>> We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a
>> flashed
>> penetration. Can use for combining, or simply as a pass through box.
>>
>> Dave
>>
>> David Palumbo
>> Independent Power LLC
>> 462 Solar Way Drive
>> Hyde Park, VT 05655
>> www.independentpowerllc.com
>> NABCEP Certified PV Installer
>> Vermont Solar Partner
>> 25 Years Experience, (802) 888-7194
>>
>>
>>
>>
>> -Original Message-
>> From: 
>> re-wrenches-boun...@lists.re-**wrenches.org
>> [mailto:re-wrenches-bounces@**lists.re-wrenches.org]
>> On Behalf Of Rich Nicol
>> Sent: Sunday, November 25, 2012 8:11 AM
>> To: 'RE-wrenches'
>> Subject: [RE-wrenches] Best practices for conduit penetration on roof
>>
>> Wrenches,
>> We typically run conduit for roof mounts over the edge of the roof to the
>> eaves, rather than penetrate the roof whenever possible. An upcoming
>> installation on an freshly asphalt shingled roof requires that we
>> penetrate
>> the roof for the conduit run (Enphase). I'm wondering if there are any
>> suggestions for preferred flashing products and best known practices. It's
>> always seemed to me that the typical Oatey type flashing dries and cracks
>> eventually.
>> Thanks for your insights..
>> Rich
>>
>>
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-- 

Cordially,

*Nick Soleil*

*Field Applications Engineer
*

*Enphase Energy*

Mobile: (707) 321-2937


**

*Enphase Commercial Solar.*
*Limitless.*<http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012>

*
*<http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012>

1420 North McDowell

Petaluma, CA 94954

www.enphase.com <http://www.enphaseenergy.com/>

P: (707) 763-4784 x7267

F: (707) 763-0784

E: nsol...@enphaseenergy.com

[image: nabcep logo] Certified Solar PV Installer #03262011-300

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Re: [RE-wrenches] Best practices for conduit penetration on roof

[William]

And if over 250VDC, bonded. 

William


On Nov 25, 2012, at 1:58 PM, Bob-O Schultze  
wrote:

> Don't forget that EMT carrying DC within a building has to be marked every 
> 10'.
> Bob-O
> 
> 
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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Bob-O Schultze]

Don't forget that EMT carrying DC within a building has to be marked every 10'.
Bob-O

On Nov 25, 2012, at 11:41 AM, Rich Nicol wrote:

Soladeck it is, thanks everyone.
Rich

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of SwingJunkie
Sent: Sunday, November 25, 2012 9:48 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Best practices for conduit penetration on roof

Rick,
Another nice thing about the Soladeck is that it can be located directly
under a module and is thus visible on the rooftop.  Don't forget to seal the
conduit entry into the residence.  

Cheers
Carl
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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Rich Nicol]

Soladeck it is, thanks everyone.
Rich

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of SwingJunkie
Sent: Sunday, November 25, 2012 9:48 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Best practices for conduit penetration on roof

Rick,
Another nice thing about the Soladeck is that it can be located directly
under a module and is thus visible on the rooftop.  Don't forget to seal the
conduit entry into the residence.  

Cheers
Carl
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Re: [RE-wrenches] Best practices for conduit penetration on roof

[penobscotsolar]

Try SolaDeck, Rich. It has a din rail inside for mini breakers and a
ground as well. We use them all the time with great results.
http://www.rstcenterprises.com/soladeck/

Daryl


> Wrenches,
> We typically run conduit for roof mounts over the edge of the roof to the
> eaves, rather than penetrate the roof whenever possible. An upcoming
> installation on an freshly asphalt shingled roof requires that we
> penetrate
> the roof for the conduit run (Enphase). I'm wondering if there are any
> suggestions for preferred flashing products and best known practices. It's
> always seemed to me that the typical Oatey type flashing dries and cracks
> eventually.
> Thanks for your insights..
> Rich
>
>
>
>
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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Kent Osterberg]

My understanding has been that the Soladeck has only been listed for DC 
wiring. Perhaps they have a manufacturer rep on RE-wrenches that can 
clarify.


Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com


On 11/25/2012 6:20 AM, Dave Palumbo wrote:

Rich,

We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a flashed
penetration. Can use for combining, or simply as a pass through box.

Dave

David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
25 Years Experience, (802) 888-7194


  



-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol
Sent: Sunday, November 25, 2012 8:11 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] Best practices for conduit penetration on roof

Wrenches,
We typically run conduit for roof mounts over the edge of the roof to the
eaves, rather than penetrate the roof whenever possible. An upcoming
installation on an freshly asphalt shingled roof requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering if there are any
suggestions for preferred flashing products and best known practices. It's
always seemed to me that the typical Oatey type flashing dries and cracks
eventually.
Thanks for your insights..
Rich



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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Dave Palumbo]

Bill,

I think so. http://www.rstcenterprises.com/soladeck/ 

Dave

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William
Dorsett
Sent: Sunday, November 25, 2012 9:49 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Best practices for conduit penetration on roof

Dave, does Soladeck have a smaller basic junction box without the combiner
box fittings?

Bill Dorsett
Manhattan, KS

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Palumbo
Sent: Sunday, November 25, 2012 8:20 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Best practices for conduit penetration on roof

Rich,

We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a flashed
penetration. Can use for combining, or simply as a pass through box.

Dave

David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
25 Years Experience, (802) 888-7194 


 


-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol
Sent: Sunday, November 25, 2012 8:11 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] Best practices for conduit penetration on roof

Wrenches,
We typically run conduit for roof mounts over the edge of the roof to the
eaves, rather than penetrate the roof whenever possible. An upcoming
installation on an freshly asphalt shingled roof requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering if there are any
suggestions for preferred flashing products and best known practices. It's
always seemed to me that the typical Oatey type flashing dries and cracks
eventually.
Thanks for your insights..
Rich




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Re: [RE-wrenches] Best practices for conduit penetration on roof

[William Dorsett]

Dave, does Soladeck have a smaller basic junction box without the combiner
box fittings?

Bill Dorsett
Manhattan, KS

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Palumbo
Sent: Sunday, November 25, 2012 8:20 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Best practices for conduit penetration on roof

Rich,

We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a flashed
penetration. Can use for combining, or simply as a pass through box.

Dave

David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
25 Years Experience, (802) 888-7194 


 


-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol
Sent: Sunday, November 25, 2012 8:11 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] Best practices for conduit penetration on roof

Wrenches,
We typically run conduit for roof mounts over the edge of the roof to the
eaves, rather than penetrate the roof whenever possible. An upcoming
installation on an freshly asphalt shingled roof requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering if there are any
suggestions for preferred flashing products and best known practices. It's
always seemed to me that the typical Oatey type flashing dries and cracks
eventually.
Thanks for your insights..
Rich




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Re: [RE-wrenches] Best practices for conduit penetration on roof

[SwingJunkie]

Rick,
Another nice thing about the Soladeck is that it can be located directly under 
a module and is thus visible on the rooftop.  Don't forget to seal the conduit 
entry into the residence.  

Cheers
Carl
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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Rich Nicol]

Hi Dave
Perfect! I forgot about the SolaDeck, I believe they're even in stock
locally.
Thanks
Rich

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Palumbo
Sent: Sunday, November 25, 2012 9:20 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Best practices for conduit penetration on roof

Rich,

We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a flashed
penetration. Can use for combining, or simply as a pass through box.

Dave

David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
25 Years Experience, (802) 888-7194 


 


-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol
Sent: Sunday, November 25, 2012 8:11 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] Best practices for conduit penetration on roof

Wrenches,
We typically run conduit for roof mounts over the edge of the roof to the
eaves, rather than penetrate the roof whenever possible. An upcoming
installation on an freshly asphalt shingled roof requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering if there are any
suggestions for preferred flashing products and best known practices. It's
always seemed to me that the typical Oatey type flashing dries and cracks
eventually.
Thanks for your insights..
Rich




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Re: [RE-wrenches] Best practices for conduit penetration on roof

[Dave Palumbo]

Rich,

We have been using SolaDeck PV roof mount enclosure. NEMA 3R with a flashed
penetration. Can use for combining, or simply as a pass through box.

Dave

David Palumbo
Independent Power LLC 
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com 
NABCEP Certified PV Installer
Vermont Solar Partner
25 Years Experience, (802) 888-7194 


 


-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol
Sent: Sunday, November 25, 2012 8:11 AM
To: 'RE-wrenches'
Subject: [RE-wrenches] Best practices for conduit penetration on roof

Wrenches,
We typically run conduit for roof mounts over the edge of the roof to the
eaves, rather than penetrate the roof whenever possible. An upcoming
installation on an freshly asphalt shingled roof requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering if there are any
suggestions for preferred flashing products and best known practices. It's
always seemed to me that the typical Oatey type flashing dries and cracks
eventually.
Thanks for your insights..
Rich




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[RE-wrenches] Best practices for conduit penetration on roof

[Rich Nicol]

Wrenches,
We typically run conduit for roof mounts over the edge of the roof to the
eaves, rather than penetrate the roof whenever possible. An upcoming
installation on an freshly asphalt shingled roof requires that we penetrate
the roof for the conduit run (Enphase). I'm wondering if there are any
suggestions for preferred flashing products and best known practices. It's
always seemed to me that the typical Oatey type flashing dries and cracks
eventually.
Thanks for your insights..
Rich




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