Re: [RE-wrenches] Heat dump or Stagnate?

2009-04-24 Thread August Goers
Darryl - I've always heard that it isn't good to run glycol in a drainback system. When the system drains during an overheating condition there is a glycol residue left in the collectors which cooks and I suppose turns to powder. Time after time this will decrease system efficiency and possibly

Re: [RE-wrenches] Heat dump or Stagnate?

2009-04-24 Thread jay peltz
Hi August, Its what I've been told that using glycol in drainback you will end up with problems when the fluid hits the super heated metal in the collectors. Very hard on the chemistry, shortens the life etc. So PH neutral water only, jay peltz power On Apr 24, 2009, at 10:38 AM,

Re: [RE-wrenches] Heat dump or Stagnate?

2009-04-24 Thread August Goers
Hi Troy - We've installed a good deal of Schuco systems with Slim V collectors which are supposed to utilize steam back. Being a mechanical engineer, I still have my doubts about the steam back principle but I don't have any real world data proving it does or doesn't work. I can't say anything

Re: [RE-wrenches] Sunny Island does not support using a transfer switching grid tie mode

2009-04-24 Thread Peter Parrish
All: I haven't read the whole email but I want to let everyone know that we have had terrible problems with the Xantrex XW product. Part of the problem is that not everyone in tech support there is equally knowledgeable about their XW line and they give inconsistent advice and in some cases

Re: [RE-wrenches] Self-drilling posts for ground mounting

2009-04-24 Thread Jeff Yago
We have an upcoming install for a residence subject to Homeowners Association controls and they have demanded that the array be mounted on the ground, not the roof. The client has a huge yard, but the south facing yard area for the array slopes down fairly steeply. Of course this is ideal for tilt

Re: [RE-wrenches] Self-drilling posts for ground mounting

2009-04-24 Thread Wind-sun.com
Before you go too far, check state and local regs. Some places have passed regulations exempting many solar installs from HOA Thought Police rules. .. Northern Arizona Wind Sun - Electricity From The