I'm a home owner considering installing indirect water heater, but I have a lot of ?'s.
1.my Alpine manual show the indirect piped off the boiler loop with it's own circulator.
but the new manuals show piping off the header near the loop.
Why the difference.
2.what's the pros and cons of these methods and piped as a zone with a zone valve.I already have a 1" zone valve on a zone i don't use.
3. The MCBA runs either the boiler circulator if switched with heating thermostat
connections, or the indirect circulator with the water heater connections.
Can I connect both of those circulator wires to the one boiler loop circulator
so that the boiler loop circulator runs under both situation?
And my brains not fully awake yet but as far as questions 1 & 2 go I would use the piping off the manual that came with your boiler and not the "new manual". Question 3, you want only one pump running so your recovery time on the indirect is as short as possible.
not some much which way should I do it, but why the difference. The new boilers are identical except for the control. Old- MCBA New-SAGE. So I suspect the old way was not ideal.
And 3. is specific to the MCBA and is: can I control The 1 boiler loop circulator with both switching situations; connect both wires from MCBA to the circulator?