aquastate wireing questions on 520

i have my boiler set up with a taco 120 circulator on primary loop and (five) taco # 7 circulators running for secondary loop floor heat 10000sq foot building pex in floor ,will the aquastate
on the boiler handle all six circulators when thermstate calls for heat or should i add additional relay

Do you have the zone circulators hooked up to a relay control box?

no i came out of aquastate to 4x4 box and bugged primay and secondary cir in

What model is the aquastat and all the circulators? You need to add up the amp draw of all the circulators.

the aquastate is the 8145A (i think thats the number) primary is taco 120 2.3 amps, secondary has (5) taco #7 ( again i think thats the number the small taco circulators ) they draw .71 amps each

Normally R845As would be used for each circulator or there are panels that will handle 4 circulators.

evan if i want all to run at once one zone with primary loop ?

i just walked outto shop and looked its a L8124 a aqustat, taco 120 primary cir, and taco 007 cir, 5 of them

I would put a 10 amp relay in and run the secondary pumps with it. You are close enough to the rating that it would be better safe than sorry. Besides, a relay is only $10, small money to pay compared to a L8124A.

The manual says the circulator circuit in the L8124a can handle 7.4 amps. You might overheat that relay on a long heat call...probably a good idea to put the 007's on their own relay.

thanks ill do that