AA 260 Rewire
Posted: Thu. Jul. 03, 2008 10:54 pm
I'm looking for advise.
I don't how it works but our unit works fine in the winter. The way the controls are wired have me scratching my head.
However we seem to be getting too much unburnt coal in the summer using the AA for DHW only.
So it appears that I will be rewiring this weekend. I want to follow the AA instructions and include the timer. Years ago we installed a DPDT switch that I believe controls the circulators whether we are on oil or coal.
The AA260 is hooked up parallel to the oil burner. I have 2 zones each controlled by their own thermostat and circulator.
I currently have 3- L8214 A,C control units, 2- R 845 A relays, and 2 L 6006A aquastats to be installed anywhere on the 2 boilers. The current setup has 1 L6006 as the high limit on the AA, 1 L6006 as a low limit control for the circulators, 1 L8214 on the oil burner, and both R 845A's connected to control each zone's circulator.
My question to the gurus here: I can follow the AA wiring diagram to wire the coal, but how will I wire the oil burner to also operate the 2 zone system ????
My ideal setup would be to be able to throw the circuit breaker to turn on the AA and have it work as it has following their diagram. But if I want to use the oill, I would like to just throw on that breaker, turn off the coal and have it operate the same.
We really don't to switch over to oil but I do want that option made easy.
Any suggestions ????
--------------------------------------------------------------------
Rick
I don't how it works but our unit works fine in the winter. The way the controls are wired have me scratching my head.
However we seem to be getting too much unburnt coal in the summer using the AA for DHW only.
So it appears that I will be rewiring this weekend. I want to follow the AA instructions and include the timer. Years ago we installed a DPDT switch that I believe controls the circulators whether we are on oil or coal.
The AA260 is hooked up parallel to the oil burner. I have 2 zones each controlled by their own thermostat and circulator.
I currently have 3- L8214 A,C control units, 2- R 845 A relays, and 2 L 6006A aquastats to be installed anywhere on the 2 boilers. The current setup has 1 L6006 as the high limit on the AA, 1 L6006 as a low limit control for the circulators, 1 L8214 on the oil burner, and both R 845A's connected to control each zone's circulator.
My question to the gurus here: I can follow the AA wiring diagram to wire the coal, but how will I wire the oil burner to also operate the 2 zone system ????
My ideal setup would be to be able to throw the circuit breaker to turn on the AA and have it work as it has following their diagram. But if I want to use the oill, I would like to just throw on that breaker, turn off the coal and have it operate the same.
We really don't to switch over to oil but I do want that option made easy.
Any suggestions ????
--------------------------------------------------------------------
Rick