I think we found a source of Los Angeles FD labels. They comply in every
respect to the document; "Los Angeles Department Requirements "SOLAR
PHOTOVOLTAIC SYSTEMS". F.P.B. Requirement No. 90, 6-30-08
Labels are 2 in x 3" with white letters on a red background, min 3/8 in.
high, arial font all c
If you had, for instance, strings of quantity 10 PVL136 watt modules, and
you needed to put in a 68 watt module because of a skylight, then you would
want to use a string of 9 PVL136 watt + 2 PVL68 watt. This would keep the
voltages the same between strings. Having a string of 9 PVL136 + 1 PVL68
Hi Carl,
We've installed Apricus systems for about 3 years. I expect that the 72.5
psi = 5 bars, is the recommended system TEST pressure, before charging. We
hold pressure on all our systems at 75 - 80 psi, before charging at 25 to 35
psi. We used to take the test pressure higher, before using pum
Reality tends to agree with the EE. But opinion pushes the other way.
Sky Sims
Ecological Systems
http://www.ecologicalsystems.biz
220 County Road 522
Manalapan, NJ 07726
732-462-3858 toll free)866-759-7652 fax)732-462-3962
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
I thought I knew the answer to this one, but wanted to run it by the list.
We are responding to a bid where the electrical engineer has designed a system
with different sized Uni-solar laminates in some series strings paralelled with
consistant full size strings. (this was done to work aro
Peter:
What about the battens? Did you not have battens supporting the lower two
rows of tiles? Did they not require nails that penetrated the comp and
paper? Did the battens form a dam?
William Miller
At 07:42 AM 10/30/2008, you wrote:
Wm,
Client with ancient barrel tile wanted to keep
"Roof Hooks" supplied by Conergy are what I have used and it works very
well. You pull the tile accordingly with the rafter and replace the tile.
The tile stays in tact and water leakage is also kept to a bare minimum.
They look like a "J" or very similar, give a rep from Conergy the
application an
Wm,
Client with ancient barrel tile wanted to keep the precious and didn't want
us breaking a single one (we cracked three or four just investigating with a
195lb person up there (me). Roofer was called in. Tile was removed under
the array all the way to eave. Comp shingle was laid under top ro
Carl,
I install APRICUS evacuated collectors too:
Guess I missed that in the manual about the 72.5 PSI [.5 PSI? right], still
looking for it.
I set my system pressure to 20 PSI @ cold [no tubes in the collector] plus
[elevation compensation ] of + 1 psi per 2.3 ft of head, and typically use a
50
We have used a big transfer pump (from Lowes) that gives us the pressure...
but I'm wondering if this big pump is causing cavitation created bubbles
leading to air in the system? with our old, low er head pump (an AC powered
shurflow diaphram) we never had these mystery air pockets.
way
Carl
Not sure about the high pressure ,as I use flat plates, but I would assume
it is because of the extremely high stagnation temps. What does the
manufacturer say?
As for charge pump, you could use a progressive cavity, ' carbonator pump'.
Contact off list for more info---
- Orig
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