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I am excited to install my Taco ZVC. I have a Peerless boiler, indirect water heater and 4 zones (3 heat, 1dhw).
My plan is to mount the unit to the boiler casing and run all the Tstats and zone valves to the appropriate ports. I will then run low voltage wiring from the end switch on the ZVC to TT on my aquastat, which will run our circ pump during calls for heat.
My question is in regards to the 120v required for the ZVC404-4. I am curious as to which is the best method for pulling this in. I have a line coming into a junction box on the right side of the boiler casing that feeds the aquastat and circ pump. Not sure if I should jump off of that wiring and run some 14/2 armored right out of that box or if that would overcrowd it.