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Installation of the HVAC System

Bob joins Paul Costello and Lou Mazzini in the old dairy building to discuss the SpacePak high velocity hydro air HVAC system that's being installed in both the house and dairy. The system will provide both heating and cooling. In the winter a boiler delivers hot water to coils over which air is drawn. This heated air rises and is distributed at high velocity through plenum ducts running around the perimeter of the structure and on to room outlets through to 2" diameter sound attenuating tubing. The systems uses insulated fiberglass ducts which are coated on the inside to prevent mold and other growth. The system creates a pressure center in the room with a differential of two degrees between floor and ceiling. Cooling is accomplished by the same system only the air passes over different coils cooled by a refrigerants from 5-ton American Standard condensers situated behind the dairy. Domestic hot water will be provided by a very efficient indirect hot water system. The SpacePak system is particularly well-suited to restoration/renovation projects where space for ductwork is at a premium.
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Installation of the HVAC System

  computer-generated transcript - may not be 100% accurate

" Well we're getting started today in this former dairy barn which is being converted. Into two artist studios and space for one car one car garage on the far end and most of the framing has been completed now I get staircase that partitions in place. We got a boiler room back there let's say hi to up off Costello -- you good how are you. This is the Spacepak system and and basically what kind of a system is it. Is in the details it's a Hydro air system companies one system that's going to provide both heating and cooling to the -- studio all right so you get you do have a boiler get hot water boiler. They'll be connected to some hot water coils we'll see later and that provide both heating and cooling. OK and then you've got a hot water from your water heater here for domestic this is a domestic indirect hot water heater which means that. Hot water will flow through a coil internally serious health plan produce hot water and it's very efficient. OK and then in the boiler room we've got Lou Messina our other contractor here hey Lou I you know -- now you're moving that into place. Which which component is the file this is the hallmark -- this is the return to return we'll go through here. Fan is drawing air through it's heated. Through the distribution duct and then upstairs all right so hot air rises cool air drops to the bottom and and it returns via. Via this return this area here what happens in there -- What haven't been here about that we have two -- one coil is gonna take care of by heating and one coil is gonna take care of the cooling. Basically what happens is that large opening there are returning in the air is going to come in here and it's going to go up by 24 items which goes up. The main -- which run around -- the building and supplies are lots of like moving. While our outlets around here all right so regulation of the system is operating in the winter months then it's calling for heat in the heating coil here has hot water from the heating boiler from that boiler doesn't cooking oil there. And it's not a time. You heavy refrigerant coming to the other coil which is for the cooling now the refrigerator coming from outside of the -- condensers that we have just on the other side of the wall here then what kind of condensers are those those are American standard condensers that we used they're five ton units to match this five -- system -- one of the secrets of this whole system is high velocity delivery. And let's go upstairs we take a closer look at all the ductwork and get out of there waiting at the boiler in here. So this former loft would make terrific artists' space or home office used and I guess this is the area directly over the -- The boiler room right yeah."

" This is the boiler room's directly below us in this is where the plenum duct is coming up to feed both the first floor and the second. All right so that the the distribution for both floors takes place along this level line outside walls OK now what you're calling a plenum duct is basically this round stuff right yes. It's a fiberglass -- Insulated and coated on the inside so what's the inside coating. Is it what's it therefore I mean what's the afford to protect any type of growth normal conduct more. Opt to keep it clean and very important yes and then of course it's also fiberglass though you don't have any kind of heat loss through. Now your high velocity system the air is moving quicker there's less loss in the ductwork. OK and then the secret to this high velocity system too is this flexible. What does this three inch ductwork. This is to -- we call this is -- sound attenuated tube in absorbs any noise or sound before prison. Now what have you done so far apart in the in the main house. And the main house we have three systems for each zone we had first floor second or third floor right first -- handlers in the cellar. And then we have to wear -- and tactical people the second and third floor OK so that these are. Basically hanging from the rafters right want to mounted in the floor cod in the basement and then you have two that are suspended from the ceiling on the area."

" And would be easily accessed if you have to service the units yeah they're very easy access for both homeowner and service terrific now over here I noticed that we're getting ready to do some connections right how do you connect these things."

" What Joe's doing here is he's going to connect this supply -- and they'll take care of the upper level who take -- inch --"

" drilling into the ductwork. Pulls it out takes out the core. Then you have a gasket -- what we call our quick connect all -- that snaps into the plenum duct and it holds tight. So that the real problem actors is closed now. That snaps into place yes it --"

" Those are reverse acting pliers we've just put those down inside. Give the snap you here click and you know it's connected to. Is that there's no tape involved -- no tape."

" Okay then. These all basically. Provide the idea. The assurance that you have even cooling or even heat throughout the space with a high velocity systems creating a press -- in the -- in which typically don't have -- difference between floor and ceiling and two -- and we want to be able to keep everything under the windowsills here so that we can have a window seat belt you I was the constraints of the space that's. We need to hide the ductwork to keep your openness here will be made into windows great and then over here we've got the continuing distribution with a smaller ones that actually feed the space is being down book. Thanks for coming thank you Bob all right."

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