Taco PC600 Post Purge Timer Card?

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CoalisCoolxWarm
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Post by CoalisCoolxWarm » Sun. Jan. 24, 2016 11:04 am

Taco PC600 Post Purge Timer Plugin Card

Anyone use these or know anything about them? I had a similar thread in another area, but figured this would be more specific.
I have two Taco SR504-EXP with the expansion card slots.

Do these cards work with ONLY the priority zone, or can it use other zones, too?

Can I have TWO priority zones, one on each SR504-EXP controller?

If so, I can use my existing setup, run the extra "dry contacts" on the card to a 120v relay in parallel for my primary loop circulator pump, so it also runs, and set my priority zone to our main heating area.

I'd really appreciate hearing opinions and especially from anyone who has worked with these cards- in any capacity!

Thanks!

 
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Rob R.
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Post by Rob R. » Fri. Jan. 29, 2016 7:00 am

Not sure on the Taco setup. Found some old discussion on post-purge controls through:

Temp Overshoot

Some of the Honeywell Aquatrol controls have an adjustable post-purge feature.


 
User avatar
CoalisCoolxWarm
Member
Posts: 2323
Joined: Wed. Jan. 19, 2011 11:41 am
Location: Western PA
Stoker Coal Boiler: Keystoker KA-6
Hand Fed Coal Furnace: old Sears rebuilt, bituminous- offline as of winter 2014
Coal Size/Type: Anthracite Buckwheat
Other Heating: Oil Boiler

Post by CoalisCoolxWarm » Fri. Jan. 29, 2016 10:28 am

Thanks, Rob.

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