grid intertie [RE-wrenches]

[R. Sparks Scott]

	Dave;

	Assuming that you want to use the PV's to backfeed the grid, and NOT
discharge the batteries, BATTERY SELLING should be left to factory defaults
(OFF). Battery selling is intended to allow users to sell the power stored
in the battery bank, discharging them down to the 'Battery Sell Volts'
level. Unless you ahve some reason to want to exercise your batteries by
selling the stored power, leave Battery Selling off. Same with Grid Useage
Timer It would only be used, for example, if your utility had a huge
descrepency between on and off-peak power prices and you wanted to charge
the batteries when power was cheap and sell it back when power was expensive.
	You are going to have to set the SW  up to be the primary charge
controller in the system now. The PWM 60's will only be needed in case the
grid fails and the SW drops offline. Be sure to set the SW BULK and FLOAT
set points lower then the PWM 60's. In fact, it the grid is super reliable
in your area, I'd probably dump the charge controllers altogether and let
the Trace do it all.
	Setting up a SW to grid intertie really is a one-button operation, and it
all happens in menu item 9, SET GRID USEAGE. Just make sure its set to SELL
there, the rest is simply (?) adjusting bulk and float voltages and timers.
Once you have it selling porperly, check back in for advanced tricks such
as auto disconnect, etc.

	-S

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