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cosmogas combined heatingand portable water heater
Well to make a long story short the 2nd floor zone valve is wired open with the end switch not being wired into the boiler tt connection ,why because that the only way the original installer could figure out how to keep the attic hydro coil from freezing no freeze stat was installed on the coil .Also the zone valves are on the return and there is no check valve on the supply piping also as i did locate some info on this unit it's installation direction did indicate that when installing to a sysystem which is multi pumped that hydralic seperation is required (PS PIPNG)Besides that i guess i was on the right track with thinking that this unit would not supply enough hot water as for the storage tank with a aquastat and bronze pump to increase domestic water volume well the electric tank that was installed and wired, well the HO was told that the tank even though it was wired was just a storage tank all in all the HO still thinks the boiler is make there hot water even though the boiler is shut off so the a/c will work ,This is as usual another job installed by some one who 's expensive hack work and expertise in sales and bull far exceeds the ablity of the below standard mechs that he employes and sub to ,but he could sell a rattlesnake a new rattle on another note i looked at this job over 6 years ago anbd the HO did not like my rough estimate and pushed me out the door now aftre over 6 years and living with a inproper installed system and electric and gas bills which should only be connected with amuch larger home his time to pay the piper is coming peace and good luck clammy on another note otheres have posted this contractors unico /munchkin systenm which are plauges with promblem only thing is this guy sells alot of unicos and installs them like garbage
R.A. Calmbacher L.L.C. HVAC
NJ Master HVAC Lic.
Specializing in steam and hydronic heating