Always equalize the pack before you install. This ensures that the batteries are all at the same voltage before you install. If you install and then let the balancers work, it'l take quite a few charges to get all of the batteries completely balanced. Yes it'l work, but it'l take a long time to become balanced. If you start balanced, the BMS won't have to work as hard, if at all, to keep the batteries in balance.
no you cannot use the manzanita charger. If you parallel all batteries, the voltage will go between 3 and 4V or so. The PFC 30 goes 12 to 450VDC output. You will need a single cell charger. This can be a very low current charger. Batteryspace.com has several:
http://www.batteryspace.com/smartchargerforlifepo4batterypacks.aspx
This one is on sale for $20:
http://www.batteryspace.com/Smart-C...1-Cell-LiFePO4-Rechargeable-Battery-Pack.aspx
Just parallel all batteries together (or in groups) and plug this in to charge. Might want to let them sit. Then after the charger is done, let the batteries sit for a night or two to let the charges equalize.
www.manzanitamicro.com
www.elithion.com