Hydronic zone valves

Arlin

We have baseboard heating; a Weil-McLain boiler (no problem) and three zone valves. The zone valves are now-obsolete White-Rodgers 13A03-112 hydronic zone valves. When one of these fails will it be necessary -- or desired -- to replace all three? Also do I indicate a manufacturer preference (I have none at this time) to the professional who replaces it/them?

John Starcher_4

It would make sense...

...to replace them all at the same time, so you only have to drain your heating system once. Otherwise, Murphy's law will prevail...........

As far as brands, Honeywell, Erie, Taco, and others all make good zone valves. Your decision should be based on what is available locally. Your contractor should be able to recommend the right one for you!

Good luck,

Starch

Joe Mattiello

Taco Zonevalves

For reference I attached submittal data information for the Taco, zonevalve which will do a nice job for you.

Taco, Inc.
Joe Mattiello
Technical Service Technician
joemat@taco-hvac.com
401-942-8000 X 484
www.taco-hvac.com

BillW@honeywell

You can check out Honeywell's, too...

Either our standard V8043 series or the new slow closing, super-quiet 5000 series will work for you, visit www.customer.honeywell.com, and click on water products, or contact your local heating pro.

Arlin

Hydronic Zone Valves

Thank you Starch, Joe, and Bill. I appreciate the information very much. While the area in which we live is not "remote", quite often a needed part or piece of equipment is not readily available and must be ordered from elsewhere so I had spare White-Rodgers valves but the last one was installed a few days ago. We will go with the valve recommended by the contractor when needed -- Thanks for pointing out the advantages of replacing all of them, Starch.

Sweet_2

White Rodger ZV

obsolete?? You may find hard to get, but I wouldnt call them obsolete. I think the spanner ring is a pretty cool idea. I still order and install these Zv dont seem to have out of ordinary problems. In fact Honeywell ZV give me more trouble than W.R. not knocking H.W. I like them to.

Kal Row

the best ones.. are even harder to get

after Honeywell bought sparco – the sparco zone valve got really hard to find – pity, since they are the only high flow zone valves, that have built in flow adjustment,
you can order them from plummingsupply.com
http://www.plumbingsupply.com/zonevalves.html
but a I doubt if ya-gona-git-them, I tried for 6weeks and gave up, (that was a year ago, may be better now) used 8043’s with separate flow valves, and ‘U’ pipes for shock dampening. – don’t know what Honeywell’s plans for sparco is

anyway if you are going to run more than one, the 8043 series draws .32 amps (7.68va) to the taco’s point .90 or (21va), makes a difference to the avg 40va xformer,
on the Honeywell data sheet is note “a” “Maximum five V8043 Zone Valves per 40 VA transformer.“
so officially, you get 5 honey 8043’s to 2 taco 571’s on a 40va xformer – however, since rarely, do all zones operate at once, you should be able to put 4 taco’s on a 40va, seen it done so many times, that I wonder, if the honey rating is avg and the taco is peak – and taco’s seem neater, and they have all sorts of new ones avail check out taco-hvac.com,

dont know what the 5000 series draws

Arlin

Hydronic Zone Valves

Thank you, Sweet & Kal. -- Sweet, WR Representative Peggy Arnold (WR/Stl) stated the valves were obsolete in response to my inquiry.

There may, indeed, be some on a dealers'/contractors' shelf somewhere but not around here.

Thanks again, everyone.