I think you're out of luck. You need a three-wire p-stat. The NO feeds
power to the PID for the brew boiler. You can't just wire it direct to
110V or it will pop the breaker the first time both boilers call for
heat at the same time.
If you've already bought the part and can't return it, I guess you could
install a relay with the control input hooked up to the p-stat NC and
then hook the NO wire to the relay's NO. Kind of a 110V not-gate.
Bruce
On 12/23/15 10:32 AM, Curtis H wrote:
I have a Brewtus 2 with a PID purchased used just over a year ago.
I'm having periodic problems with the steam boiler overheating and the
overpressure valve releasing steam. I don't trust leaving the house
with it on anymore...
I'm wondering if anyone has swapped out their Mater pressurestat for a
Sirai. I'm looking at the smaller 2-pole that's used on a Rocket
(P203T01). It definitely fits. My question is with the wires: On
the Mater there's one wire to each of NO (Normally Open), NC (Normally
Closed) and Common. On the Sirai, there's NC and Common. What do I
do with the Normally Open wire?
Curtis
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