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Multi-Zone HVAC System

Bob meets with Mark Gallivan from Sears HVAC and Brent Morin from Morin Mechanical Services to review the heating system installation at the modular home project. The high efficiency, state of the art Hydro-Air system uses components of a traditional boiler, humidifiers, variable speed fans, electronic air cleaners and three exterior condensing units. Carrier manufactures many of the heating unit�s components including the boiler. The boiler produces hot water for both a forced air unit and a baseboard radiant heating system. The forced air unit allows for a consistent level of humidity in the house, that traditionally radiant-only units cannot accomplish, plus it receives the efficiency of radiant by employing a baseboard system. This gives the home�s occupants a more comfortable living environment. There are seven zones employed in the home�s heating and cooling system. The cast aluminum heat exchanger in this unit transfers heat three times faster than a traditional heat exchanger. The boiler uses a direct venting system that takes air directly from outside and vents it through a flue located in the center of the intake vent. This means no combustion gases are being mixed with the home�s interior air. The system�s zones can be turned on or off as needed, providing an added level of efficiency if the entire home is not being occupied at a given time.
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Multi-Zone HVAC System

  computer-generated transcript - may not be 100% accurate

" We're joining mark gallon and -- weren't were here and we're getting heating system installed. And it it's not it's it's a nice state of the art system how does that work itself Hydro air system Bob that's a component of a boiler. -- variable speed air handlers humidifier electronic air cleaners and three outdoor condensing units it's about as complicated as you can get in absolutely but it's high efficiency and it's going to make the house run perfectly in winter in -- tough winters here. As well as the sticky Summers that they get them out exactly and -- communication -- work -- through the variable speed air handler will help all those problems what's this component then this is our fan coral as a variable speed fan coil it consists of a blower motor and snake oil and it allows for the flow through of the warm or cool air throughout the entire home and then we'll also be installing. Electronic air cleaner. That's exactly right and up above Bob there is the hot water foil that will circulate the hot hot water is slow through. -- really needs is not a bar to make the house that much more comfortable all right because mark this."

" This boiler is gonna be supplying us with hot water which will circulate through that as well as through baseboard heat and other sections of the house yes. How many zones are in this house we have the ability to put eight zones and that the total of seven zones at the moment that we house so this is both. First floor we're in the face that fact from fantasy is that the basement this basement up and where we're standing right now over here on the mechanical room in the basement right over here so what we're doing is providing heating and in air conditioning for all of these rooms. That's one zone and then over here it's a different zone yes and it's. The basement is not primarily. Baseboard heat and we have no Hydro wearing here we're just gonna be putting radiation baseboard around yeah and of course you're also looking at foundation wall so you can't just put ducts very easily from one area today to the other and then the first floors one's -- for all the living area kitchen living room dining area -- And a separate one for the master area and then another -- for the sunroom correct and then a last seventh zone for. Up there exists first a couple of guys aware upstairs."

" What type of what are we have we have a carrier boiler was a cast aluminum heat -- which is three times faster on heat transfer than cast a standard cast boiler was old aluminum transfers more quickly than iron yes it does -- It's also -- high efficiency 90%. With a convincing. We have the -- direct vent -- concentric flue. That allows us to take care and this is -- see on the outside of the house represent -- when it exhausts through here right and it that we bring air in through here and it comes back through these pipes fresh air's taken in through here yes and it's. I see it's a double double -- which goes through here pressure comes in and our flue gases go out very clever you don't need chimney and a porch while -- says it also helps that you can keep this room closed up from the rest of the house the fact that you don't need combustion are you bringing in combustion air here before this room can be sealed off from the house should not stealing -- home okay. And then over behind you mark we've got. Essentially all the the zone valves right yes is this that each one of these we can isolate each zone. And this is each one just filled with water not we have an anti freeze the brine system that we have and it because of the hot water coils in the attic we have to -- water them pipes and stuff from freezing. And this way here we can we isolate everything and we can each zone can I turned on or off as needed."

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