MA Code

Rookie_3

You seem to be quick with code so throw your thoughts at this. 527 CMR 4.04 (3)1. 45 second lockout. Technically replacing a stack relay is not to code, correct? Anything grandfathered? Anyone from MA with any thoughts on this?

Firedragon_4

It's not the 45 seconds that makes a

'stack relay' an outlaw on a new install, it's the timing. With low NOX burners and such (se BlueRay) the 45 second control could be legal if it was 45 seconds, so.... that's that!

If you install a new burner in any way (retro or package)you must go to a 45 second or less primary and there's no way to go around that, NO WAY!

If the control is existing (stack switch, se RA117A) and it fails, it may be replaced during service, but that's it.

Heating is my life, but I love the codes, I think I'm the only one that does.

NEXT ???!!!???

BTW, here's why I'm so fast on the draw: http://www.firedragonent.com/

ed wallace

controls

why would you keep using a stack switch cad cells are a much better control as to fire dragon hes the man

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Rookie_3

Pretty cut & dry. Doing it & doing it not knowing exactly how far outside the lines or even if your outside the lines
makes the difference. Thanks!!!!!!!!!!!

I'll hang on to that web site.....quick on the draw?? That Dragon isn't blowing any smoke!!!!!!!!!!!!


Ed, it was only reference to what was exactly legal for stack replacement since they don't meet the 45 sec. lockout.

Firedragon_4

Thanks to both!