Browse Forums Heating, Cooling & Insulation 1 Feb 02, 2010 8:27 am We have managed to get a few qoutes now for ducted air con....but we are having troble comparing so would love hearing your thoughts on them please? House is a single storey 27sq house (211.68m2 living) on the Gold Coast. It will have reflective sisilation/wall wrap & 2.5 ceiling batts. The house is brick & tile with a dark roof, lots of north facing windows & very open plan. The install is being done during contruction & builder is charging seperately for slab, reinforcing roofspace for internal unit (what the?) and insisting on supplying 3 phase power. 1. Daikin FDYQN259K-K 24.0 kW Hybrid system with supply air grilles & 1 return grille & 5 zones,3 phase - $14158.10 yep gotta wonder about the 10c 2. Daikin FDYQ160KV1/RZQ160KV4A Inverter with 8 supply grilles & 1 return & 5 zones, 32amp single phase - $11715.00 3. Mitsubishi PEARP 200 19.0Kw inverter,10 supply grilles, 1 return & 6 zones, 3 phase. Quote says system designed to cool 120sqm at one time $12298.00 Any thoughts more than welcome here! Cheers Kim Re: Opinions on these air con quotes please? 2Feb 02, 2010 3:56 pm OMG We have managed to get a few qoutes now for ducted air con....but we are having troble comparing so would love hearing your thoughts on them please? House is a single storey 27sq house (211.68m2 living) on the Gold Coast. It will have reflective sisilation/wall wrap & 2.5 ceiling batts. The house is brick & tile with a dark roof, lots of north facing windows & very open plan. The install is being done during contruction & builder is charging seperately for slab, reinforcing roofspace for internal unit (what the?) and insisting on supplying 3 phase power. 1. Daikin FDYQN259K-K 24.0 kW Hybrid system with supply air grilles & 1 return grille & 5 zones,3 phase - $14158.10 yep gotta wonder about the 10c 2. Daikin FDYQ160KV1/RZQ160KV4A Inverter with 8 supply grilles & 1 return & 5 zones, 32amp single phase - $11715.00 3. Mitsubishi PEARP 200 19.0Kw inverter,10 supply grilles, 1 return & 6 zones, 3 phase. Quote says system designed to cool 120sqm at one time $12298.00 Any thoughts more than welcome here! Cheers Kim Hi, the prices seem OK to me. That's the easy bit. But the sizing baffles me, they're quoting on a 24kW, 15kW and 19kW. I mean there's a big difference between 15 and 24kW! What do they really reckon you need? For your sized house around here, Wollongong near Sydney, they'd be quoting on a 12.5 to 15kW sized unit, granted it's warmer up there but 24kW is one big machine. It needs to be fed and it isn't an inverter. $$$ Also the 24k will be louder than the 15k model. I would quiz them about sizing and do my own research as well, what's everyone else up there using for similar sized houses? The 3-phase issue is confusing as well, they insist on having 3-phase power but then quote on the Daikin: RZQ160KV4A which is the single-phase version, the same model is available in 3-phase, model: RZQ160HY4A - but they didn't quote on that one. Again mixed messages! As for having 3-phase, if I built again, I would definitely get 3-phase power it is cheaper and easier to do upfront and it's better for air conditioning. No worries there. As for which one, well I have a Daikin RZQ160 at work and we all think it's great. But I have an Actron ESP Plus 19kW at home and we love it as well. I say Daikin is great, Actron are greater They can run between 10 and 100% power which is handy come power bill time. I'd get those quotes clarified and I'd get more quotes. Even if you just talk with some other installers to get a clearer picture of what is going on. By all means ask more questions here. Good luck. Re: Opinions on these air con quotes please? 3Feb 02, 2010 5:41 pm Thanks for confirmming the info we have is confusing! Just to clear 1 bit of confusion, it is the builder planning on 3 phase, not the air con installers. The bulder automatically quoted for 3 phase when we said ducted would be installed. As for what others up here are using - I have no idea really. All companies we have asked for quotes have been given a copy of our plan which is why I find it confusing that all are quoting on different sizes! We did have an Actron quote (which i had forgotten about ) as were unsure of the brand we filed it away & concentrated on the 'name' brands we knew. The Actron quote was different yet again; a choice of 2 units with 7 diffusers, both single phase; Actronair SRA 17 (16.8kW) $11651 Actronair SRM 175 Ultima (17.7kW) $15637 with option of another controller $345. Its all too much for me I'm afraid ...I can see us going for the 'middle sized/ priced' unit unless the fog lifts & confusion goes! This one sounds like it is what we need based on this info; "PEA-RP200 Three Phase Inverter 19.0kw Reverse Cycle Ducted Air Conditioning System This unit is ideal for the following options. 1. 7 bedrooms 2. 1-5 bedrooms and a office, living, dining, kitchen, rumpus and play room. Comes with 7 zones. Options of more zones and outlets are available" We have 4 beds, study, lounge, family/dining/kitchen & games room. I dont think I can spend much longer working this out - builder needs installer info before we even start! Cheers Kim Re: Opinions on these air con quotes please? 4Feb 03, 2010 8:38 am Looks like Option 1 is sized to run the whole house at the same time... down here some planning approvals specify that an AC system must be zoned Day/Night so you might want to check if that's the case for you... If so Option 1 is out... and for that model seems a little expensive compared to the 160, which looks to be priced quite well... Don't do Mitsi's so can't comment on Option 3... The Actron Ultima looks good too... I'd be comparing that to the Daikin 160 and choosing between them based on features that you'd want... Re: Opinions on these air con quotes please? 5Feb 03, 2010 5:57 pm Thanks guys - as far as running costs, which is more economical single phase or 3 phase? AS for features, all we want to be able to do is cool/heat the house, be able to set a timer for early/ late startings & thats about it really - no idea what other features there are & I guess we are just after a plain & simple aircon? I think making ure the unit is big enough to do the whole house is our biggest challenge so far! Cheers Kim Re: Opinions on these air con quotes please? 6Feb 03, 2010 7:20 pm OMG Thanks guys - as far as running costs, which is more economical single phase or 3 phase? AS for features, all we want to be able to do is cool/heat the house, be able to set a timer for early/ late startings & thats about it really - no idea what other features there are & I guess we are just after a plain & simple aircon? I think making ure the unit is big enough to do the whole house is our biggest challenge so far! Cheers Kim But there's a difference between 'doing the whole house' and 'doing the whole house at the same time'... The 24kW might do everything simultaneously while the 15.5kW might do all the living areas or the sleeping areas, but not both together. Also the Actron Ultima will allow you to run just a single outlet in a single room while it winds back to just 10% and you can set a master temperature in the house and vary individual zones + or - 2 degrees by controlling the airflow... but it costs more... worth spending a little time to get what you want... Economy wise single phase is generally cheaper since all the bigger - and more electricity consuming - systems require 3 phase to run... not withstanding the fact that you can get smaller systems that run on 3 phase, but that's just over complicating the issue for you... and assuming all things being equal, which of course they're not, but someone's bound to point out that a big system just cruising won't burn much more (if any) energy that a small system running flat out... watch the race between the Prius and M3 on TopGear...! Re: Opinions on these air con quotes please? 7Feb 03, 2010 11:12 pm IceMan But there's a difference between 'doing the whole house' and 'doing the whole house at the same time'... Also the Actron Ultima will allow you to run just a single outlet in a single room while it winds back to just 10% This bit of info is brilliant thanks IceMan - that is one thing I originally wanted but was told wasnt possible -eg the ability to just run the system in the master bedroom and have all of the other rooms/zones off. I couldnt see the sense in cooling a huge empty room just because the system has to have a cerain amount running at one time & I could see us putting a split into the main after awhile as that would bug me too much. With this info it makes sense to pay a bit more for the Actron but not have to put in a split later - probably work out the same anyway! Cheers Kim Re: Opinions on these air con quotes please? 8Feb 04, 2010 8:11 am OMG The install is being done during contruction & builder is charging seperately for ... reinforcing roofspace for internal unit (what the?) and insisting on supplying 3 phase power. This is good, the builder needs to do this. Do you know how much are they charging for this? And does their quote include any other preparation work? IceMan ... down here some planning approvals specify that an AC system must be zoned Day/Night so you might want to check if that's the case for you... I thouhgt that the Day/Night zoning is only due to the limitation of the chosen unit, ie. never thoguht that it would be some council regulation?!?! Our BASIX certifiacate doesn't mention it either. So, for example, a more powerful unit could run all zones at the same time (all outlets), while a smaller unit can only run about half of the total outlet power (half od the zones, ie. labelled simply as Day/Night). But maybe there are regulations that demand that A.Ryder ... Actron are greater They can run between 10 and 100% power which is handy come power bill time. Sounds like a great feature, pitty we didn't know about it! But, can't we achieve similar with planning what to group into each zone? We simply thought of what are we likely to be using at the same time, most of the time, and then we grouped rooms into zones according to that (ie. based on our lifestyle). So, for example, everyday living and study together as opposed to everyday living and formal living together, and similar. On top of that, we should be able to manually adjust each outlet so that you can close it off slightly if you don't want to use it. In my example, if we're not using study at the same time as everyday living, we turn the study oulet to be more closed off (not too hard as it may blow the other outlets apparently). Well, that's what we've been told. Sizing As for the sizing, we have 6.5 HP (can't remember what's that exactly in kW, around 17kW) for a 2 storey, 31 sq house, with Day/Night zoning (but we have 4 zones, which means we can run any 2 of the 4 zones at the same time, which is fine for us). My signature is distracting people from my wise posts ... Re: Opinions on these air con quotes please? 9Feb 07, 2010 11:55 pm Lex OMG The install is being done during contruction & builder is charging seperately for ... reinforcing roofspace for internal unit (what the?) and insisting on supplying 3 phase power. This is good, the builder needs to do this. Do you know how much are they charging for this? And does their quote include any other preparation work? Hi The builder is charginig us $750 to put in the 3 phase wiring - apparently that is cheap? Ok so I think we have got it down to; Daikin FDYQN200P-K 20.0kW for just under $13000 with 5 zones OR Mitsubishi PEARP 200 19.0kW for $12300. Based on comparing the size & price of the 11 units we were given from the 5 companies I contacted, I think either of these will do what we need. Each company was obviously given the same floorplan but the sizes we were quoted on ranged from 15.5kW to 24.0kW and prices from $10 010 to $15637. While I would love an ActronAir to run just one zone at a time, I struggle paying $3k more for that feature alone. The ability to set each room temp would be lost in this house as it is so open - not many doors at all. Interestingly enough, an Actron Platinum Dealer gave me a quote for LG when I had specifically asked for Actron pricing?? How do you remove one of these ceiling air con vents? And is it possible to disconnect the duct joined to the vent from inside the house, without going into the roof cavity? 0 5900 Hi all, sorting out the ducted air con for a 350sqm double story house. Does this placement sound reasonable to you? Also, I plan to have 6 zones I think. Living room… 0 0 Hi all, sorting out the ducted air con for a 350sqm double story house. I think i plan to have 6 zones I think. Living room (mainly for entertainment so not used often),… 0 0 |