Browse Forums Heating, Cooling & Insulation 1 Jun 07, 2009 12:09 pm Hey all, thanx for all the info in this forum, you peeps are very knowledgeable! I've hunted and searched so don't flame me I have tried to figure this out for myself I've owned 2 fully VAV'ed ducted in the past Daikin and LG, and the Actron ESP Ultima addresses all the failings of those other units. I'm building a house in brisbane and will definitely be installing and Actron, the sugar on top would be a fresh air option, I occasionally would like to draw the outside air in on those cool still days. Any ideas? Cheers & Thanx Re: ActronAir - Fresh Air Option? 3Jun 07, 2009 2:18 pm Another thats also interested with the replies you get here! We are installing the similar unit to you, just not the "Ultima", as this seems to cause other issues within the house. We are really looking forward to installing our unit. Building Thread viewtopic.php?f=31&t=13002 Site start: 8th July 2009 Handover: 11/12/2009! 5 months total build time. 40 sqs of luxuary...Bliss! Re: ActronAir - Fresh Air Option? 4Jun 07, 2009 6:09 pm Easiest fresh air option is to have a fresh air cowl installed on your roof. Should cost no more than a couple of hundred dollars. You can then get an inline motor placed somewhere on the ducting from the fresh air connection, then attach the ducting to the return air grille. You can then manually open or close the motor when you want to bring fresh air in. Put just a simple open/close switch next to your main controller. I know advantage air return air grilles can come with a built in fresh air spigot. Otherwise you could get a specialized return air box with a little 200 diameter spigot for the fresh air intake. Too easy! Re: ActronAir - Fresh Air Option? 5Jun 16, 2009 9:08 pm One option that you have if you have a spare zone available is to get a fresh air inlet to the return air box around 300mm and install a linked zone to one of the return air ducts. When you turn on the fresh air zone it draws fresh air from outside and shuts off one of the return air ducts. The other (but more expensive option) is to install a Air Change ERV in ceiling energy recovery ventilator. This ERV allows for up to 100% fresh air to be used instead of re-circulating air from within the home. The ratio of fresh air is dependant on the total air flow of the unit. Check it out by this link http://www.air-change.com/Products/ERVI ... fault.aspx This system is great if you have a smoker in the house or you want to bring in large volumes of fresh air into the home. Cheers The Air Cond Guy Re: ActronAir - Fresh Air Option? 6Jun 16, 2009 10:12 pm I've owned 2 fully VAV'ed ducted in the past Daikin and LG, and the Actron ESP Ultima addresses all the failings of those other units. We are owner building asnd just trying to make the a/c desicion (ducted) - what are the problems that you had with the other units - LG. Daikian that youdidnt have with the actron??? and any other comments/ideas etc from anyone re the best and worst ducted systems....problems/tips etc... Thanks Re: ActronAir - Fresh Air Option? 7Jun 20, 2009 4:52 pm TheBoatMan Easiest fresh air option is to have a fresh air cowl installed on your roof. Should cost no more than a couple of hundred dollars. You can then get an inline motor placed somewhere on the ducting from the fresh air connection, then attach the ducting to the return air grille. You can then manually open or close the motor when you want to bring fresh air in. Put just a simple open/close switch next to your main controller. The Air Cond Guy One option that you have if you have a spare zone available is to get a fresh air inlet to the return air box around 300mm and install a linked zone to one of the return air ducts. When you turn on the fresh air zone it draws fresh air from outside and shuts off one of the return air ducts. Am I interpreting these correctly?: both involve teeing a fresh air feed/duct into the ducting between the return box and the in-roof unit (with a zone motor between the roof cowl and the tee), but The ACG's variation involves a second zone motor between the return air box and the tee set up such that when the fresh air duct is open, then the duct from the return air box is closed (forcing the fan in the indoor unit to suck in the air from outside). If I'm on the right track I then have two questions: 1. Is there a need for a filter of some description between the fresh air cowl and the tee to stop dust etc from outside ending up coating the intake of the in-roof unit? 2. Am I correct that you would also need to open some windows (as you would for evaporative A/C) when you open the fresh air zone/duct, for most effective operation? Re: ActronAir - Fresh Air Option? 8Jun 20, 2009 9:47 pm The Air Cond Guy The other (but more expensive option) is to install a Air Change ERV in ceiling energy recovery ventilator. This ERV allows for up to 100% fresh air to be used instead of re-circulating air from within the home. The ratio of fresh air is dependant on the total air flow of the unit. Check it out by this link http://www.air-change.com/Products/ERVI ... fault.aspx This system is great if you have a smoker in the house or you want to bring in large volumes of fresh air into the home. Cheers The Air Cond Guy i've got one of these. brings in fresh air and the same time reduces your ac load. Re: ActronAir - Fresh Air Option? 9Jun 22, 2009 8:03 am Quote: 1. Is there a need for a filter of some description between the fresh air cowl and the tee to stop dust etc from outside ending up coating the intake of the in-roof unit? Yes you will Quote: 2. Am I correct that you would also need to open some windows (as you would for evaporative A/C) when you open the fresh air zone/duct, for most effective operation? Not if you have the system heating or cooling. There is usually enough losses under doors, windows and exhaust vents etc. to stop the building from pressurising, however it wouldn't hurt to crack open a window somewhere to get some flow. Re: ActronAir - Fresh Air Option? 10Jun 29, 2009 5:22 pm dumfa I've owned 2 fully VAV'ed ducted in the past Daikin and LG, and the Actron ESP Ultima addresses all the failings of those other units. I'm building a house in brisbane and will definitely be installing and Actron, the sugar on top would be a fresh air option, I occasionally would like to draw the outside air in on those cool still days. The Actron ESP Ultima has a fresh air function. AFAIK it comes standard, don't recall paying any extra for it. It works well too. And, you're right. Actron's ESP Ultima is the best A/C in Australia. Re: ActronAir - Fresh Air Option? 11Jul 10, 2009 1:15 pm [ The Actron ESP Ultima has a fresh air function. AFAIK it comes standard, don't recall paying any extra for it. It works well too. And, you're right. Actron's ESP Ultima is the best A/C in Australia.[/quote] I dont believe it has a fresh air function built in it would be something done during installation. Cheers The Air Cond Guy Re: ActronAir - Fresh Air Option? 12Jul 18, 2009 12:07 pm The Air Cond Guy [I dont believe it has a fresh air function built in it would be something done during installation. I might be misunderstanding exactly what a 'fresh air' function is but the ESP Ultima does have a 'fan only circulation mode.' And it is standard as far as I can see. Nothing on the quote to indicate we paid extra for it. The manual says: "All zones will open to circulate air throughout your home. Quite often used on mild days to circulate fresh air through the home. Simply open a few windows and let the 'Fan Only Mode' circulate fresh air through the home." Is that not a proper 'fresh air' function? Hi, I'd like some advice on the best option please on the estimate options we've been provided from our builder. This is for the… 0 4064 Newbie question for flooring options. We are thinking of changing the flooring for bedrooms and passage area. Last time we looked at flooring options was almost 8years… 0 3501 Would also like an opinion from anyone that has used xcem over hebel for floors. Thanks 1 13279 |