Browse Forums Heating, Cooling & Insulation 1 Feb 16, 2009 10:09 pm We are simply just not getting good results with this system is there a way of adding another unit to the 18 kw one we have at the moment to increase the cooling power of the system ? If so how much are just the units on there own "ball park figure". Anyone else have similar disappointing results with this brivis ice system?
Our system can be set to 21 on a 27 degree day and still not get the temperature down any further than to 24 it basically stays at the room temperature form when we turned it on !! Re: Brivis Ice system - disapointing results 2Feb 17, 2009 7:39 am Hey Rowan,
You can add another unit. They do it a lot in display homes. DOnt know the exact set up other than they have 2units and one set of ducts. It is possible thhat each zone might have one unit. The unit cost around $4k. Instead of buying another unit i would be looking at yours and work out why it isnt cooling that much. From what you are saying it is possible that your expectations are a little too high. In my current house I have a smaller unit and I think it is great. First how big is the area you are trying to cool in square meters?? Have you got good blinds installed. Is your filter cleaned?? Have you gone in side the roof to check if any of the pipes are leaking?? Just in regards to running the unit it is a bit hard to test on a non hot day. I think it is reasonable to be able to get the temp down to 25/26 degrees when it is upto 40 degrees outside. Trying to run it lower is just going to increase your running cost dramatially. Re: Brivis Ice system - disapointing results 3Feb 17, 2009 2:01 pm Hi rowan have same post in another thread.
Your unit should be working alot better than it is our 18 kw unit cooling approx 15 sq on 44 deg day runs temp at 22-24 degrees all day if you read other thread some people are getting sim results and some are poor like yourself i dont know why there is so much difference. We have the front of our house facing east gets a heap of sun until 12-1.00 pm but still seams to cope ok . We are getting all our windows tinted with 70 -80 % heat reduction film once you have checked you system properly you may ned to go down this road also . Re: Brivis Ice system - disapointing results 4Feb 18, 2009 11:12 am You people should read the unit specs before buying and you would see on most brands are a 15 degree difference to outside temp by the way if it's 45 outside and 28 inside that is quite cold and comfortable anyway you bunch of sooks Re: Brivis Ice system - disapointing results 5Feb 18, 2009 12:20 pm Brad75 You people should read the unit specs before buying and you would see on most brands are a 15 degree difference to outside temp by the way if it's 45 outside and 28 inside that is quite cold and comfortable anyway you bunch of sooks that all depends on where your located and how your body deals with heat, i know i personally find it uncomfortable trying to relax and watch some tele on the weekend whilst my shirt and jocks are wet from sweat, and for where we live 30 degree's outside is crappy enough for even my 1 year old daughter to have a wet head of hair from the humidity horses for courses, not everyone is the same, i would NEVER look at buying an evap cooler Blog - http://snakedr.blogspot.com/ Build Thread - viewtopic.php?f=31&t=12084&p=307406#p307406 Status - PCI 15/10. Things nearly done. Re: Brivis Ice system - disapointing results 6Feb 18, 2009 7:46 pm Brad75 You people should read the unit specs before buying and you would see on most brands are a 15 degree difference to outside temp by the way if it's 45 outside and 28 inside that is quite cold and comfortable anyway you bunch of sooks 15 deg diff if you are drawing in fresh air on a recirc system you should be acheiving better than this .If you understand how A/C systems work u have 2 heat exchangers one in roof one outside if you constantly cooling air inside house you may only require a 10 deg drop in temp but you must have the same drop uotside therefore your refridge must enter the condensor outside 10 -15 deg hotter than the ambient temperature ie if its 40 deg outside the refrigerant must enter the condensor at 55 degress you moniter this temp by the pressure in the line most a/c systems are generally undergassed so they never run temps this much above the ambient therfore not releasing all the heat that was added in the roof unit. Golden rule whatever temp you add to refridgerant in roof you must remove in condensor if this doensnt happen the system will NEVER work correctly. Re: Brivis Ice system - disapointing results 7Mar 18, 2009 1:34 pm Hi guys,
Just reading about the brivis cooling unit. Henley have recomended us the 15kw unit saying it would be enough to cool our house down. our house is roughly 30sqs including garage. the heater unit is the He20i. Just wandering whether the 15kw unit would be enough to cool our house? Or should we opt for the bigger 18kw unit? which would mean we would have to upgrade our heater as well. I rang Dandy Air and he said 15kw should be enough to cool the house with zoning. What does everyone think? Re: Brivis Ice system - disapointing results 8Mar 18, 2009 2:34 pm Hi a 15 kw will struggle to cool your house!! house is 26 sq without garage i dont know why they recommended a 15 kw we have a 24 sq house and would get a 21 kw version if we built again currently have 18KW
Price off Henley 3 phase power ours was $160 extra you only pay for extra cable. Get meter setup for peak and off peak usage this must be ordered by sparkie to network provider. Get a 18 kw min A/C unit with a he or me30xa heater and 2 zone motors. Whatever you do always go bigger on A/C you wont regret it on 40+ days if its to small you will curse everyone who told you to get the smaller one. We had 18 kw unit, 3 phase power,and 2 zone motors for 10 k extra through Henley and was worth every cent. Re: Brivis Ice system - disapointing results 9Mar 18, 2009 3:37 pm Hi Kasaan,
Thanks for your fast response, Did you have to upgrade the heater as well? they are quoting us $10600 for the add on cooling, but that was for the 15kw unit. I actually wanted the 18kw unit like you have. I called up brivis and the guy on the phone told me that I could not use an 18kw unit with the he20i. Looks like I may need to upgrade to the next heater model also. Did you pay to have your heater upgraded to the "30' model? Also what do you mean by "Get meter setup for peak and off peak usage this must be ordered by sparkie to network provider"? Do they do this automatically or do I have to request it. What benefits does it offer? Too many questions Re: Brivis Ice system - disapointing results 10Mar 18, 2009 6:47 pm Yes you will need to request this usally is only available on 3 phase setups as they use a digital meter. Normally will setup 2x peak readings and charge a flat rate for all power if you request peak and off peak setup you will be charged same flat rate for both but if you later choose a time of use tariff this saves your network provider charging for a setup change usally $400? which they do over the computer anyway?
Yes as well you will need a 30 heater our quote included this, i also got a quote from 2 independant heater/ cooler sellers to do the job after house was finished was only $11,300 then i could have kept heater the builder supplied which perhaps i could have sold?. If going through bank show them independant quote and will include in home loan funds if you want to do later. Dandy air did our heating so request another quote see what price they come up with. If you get done later just dont forget 3 phase upgrade when building!!! Re: Brivis Ice system - disapointing results 11Mar 19, 2009 7:52 am Thanks for that info regarding the heater and Aircon, I will shoot an email off to Henley today and see what they say about upgrading the heater to the 30 unit so that I can run the 18kw Ice unit. I bet they will slug me a huge amount.
Also about that off peak and peak meter thing, It goes way over my head, I've tried to do a google search on it but still over my head. So in Laymans terms what would it do for me? Also is it expensive to put the meter in? Re: Brivis Ice system - disapointing results 12Mar 19, 2009 7:27 pm Single and 3 phase installs are same price only extra is cable from pit to meter box.
Gives you flexibility at later stage to change your elect tariff with no charge for doing it!!. Three options 1 Ask the liquidator 2 Find another PD customer and ask the source of their report 3 Pay for new report 3 12345 Once you know the basics, the rest is easy. Read my post in the thread linked below. viewtopic.php?p=1919271#p1919271 2 19521 It's all about wireless, self install now. The cost/benefit of wired setups for the house are no longer what they used to be. Lots of wireless options. Eufy, Arlo and… 2 9798 |