found a useful article about material that for air conditioning installation

http://www.coolserve.com.sg/htmdocs/techIn...fo_Meterial.asp

Just come back from my electrical appliance survey in Cheras..Come accross the WORST electical shop in the WHOLE UNIVERSE!! One salesman in this shop is trying to do business as if his shop is the ONLY electrical shop on EARTH..Can you imagine NO DISCOUNTS (Even RM10 also dun hav),all at list price, even if I were to buy 1. Water heater+Installation, 2. Air-con+Installation, 3. Fridge..What a useless cheapo electrical shop!!!Worst of all, even i ask for 1 piece of paper to write down the price also not willing 2 give me..Wasted my time going in, might as well buy in supermarket, where the price is harga mati..

This post has been edited by brianklc: Sep 13 2010, 02:58 AM

Sometimes is better to buy from big chain store or supermarket.

what is the shop name?

H** in balakong, avoid the short guy who wear spectacle n always wear yellow H** baju..Frankly, i think the issue come from this short spect guy and not the shop..The management of this chain store should look at the working attitute of this guy... This post has been edited by brianklc: Sep 13 2010, 10:59 AM

Wanna ask the sifu sifu here, my condo comes with concealed piping (both copper and also the pvc) from indoor to outdoor unit. However the location is not so nice and I wish to extend it to somewhere else. The air-con installer told me its not advisable to extending the piping as he will have to bridge the current pipe to a new pipe, so there's a chance that the gas will leak. Furthermore, it seems he is only able to extend it for a few more feet only. Is this true?

What's the price for York A/C nowadays? So far I manage to find 780 for 1HP, 1040 for 1.5HP and 1770 for 2.0HP. All are the G models without those Ionizer and Inverter thingy without installation.

If the aircon got problem usually I ask back the shop or the York Service ppl ah?

edit: sorry typo for 1.5HP. should be 1040, not 1440.

This post has been edited by SnoWFisH: Sep 14 2010, 02:18 AM

It is not advisable to extend the conceal piping. It is better to do new piping if you want to change location. York 1HP price can get for 749. If the aircond got problem straight go to York if still under warranty.

how much is copper price per feet now?

I bought 1HP(Acson), 1.5HP(York), 2HP(Acson), all for RM3800 include piping (not conceal).

Basically Acson and York are same, but Acson is cheaper a bit.

hi all,

I wanted to install air-con with conceal piping and electrical point. Which is better?
1. get the air-con guy to do up the piping separately. buy the air-con without installation; or
2. buy air-con with installation. Will they do the hacking?

does it make any difference?

got quoted daikin cassette (1)3.0hp 3400 + 250installation+ 200 piping
daikin cassette (1)2.0hp 2850 + 250 installation +200 piping
daikin inverter wall mounted (2unit)1.0hp - 1200 + 130 inst
daikin inverter wall mounted (4unit)1.5hp - 1550 + 150 inst
additional 190 discount from total price
this price considered ok?

I've being quoted Panasonic Inverter 2 HP of S18KKH RM2600(including installation)
Panasonic Inverter 2.5HP S24KKH RM3200(including installation)

How's the price ? Is it good or still expensive ?

Is best to ask the person you buying from if they do conceal. If they do maybe you can get better deal rather than
getting another person to do the conceal and installation.

i prefer panasonic. coz it silence. not like LG, eventhough claimed that they producing low noise a/c, but u can still hear annoy typical 'trrrr' sound.

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Added on September 15, 2010, 9:47 amhow much better (deal) you can get?.. RM50, RM100. better get installer to do it one shot. peace of mind, fast, efficient, can clean the mess immediately.

This post has been edited by sharzkey: Sep 15 2010, 09:47 AM

i duno cos panasonic inverter use diff piping and diff gas., environment friendlier
and compare to my daikin casette is just a normal cassette

ohh..this worries me now... how different is the piping for inverter a/c and the normal one? In terms of material or in terms of sizing diameter of the pipes? My house is under reno and all pipes will be concealed soon i don't want to make mistake as I intend to put in inverter too in the masterbed room.. adv pls sifu!

as far as i know if u use normal piping.. u cannot use pana inverter.. i only know of daikin inverter can use back those old piping because it still use the old gas cheaper for maintainence as of now.. but i dont know in the future though and i forgot the code of those gasses hahah sorry u need to read back from the beginning.. i think pana inverter need bigger piping your aircond man who do your pipiing should know ma

im not a sifu thats what i think i know my knowledge oso not deep.. so please correct me if im wrong thanks

This post has been edited by heng84: Sep 15 2010, 11:50 AM

detail information about air conditioning

http://www.coolserve.com.sg/htmdocs/coolAd...ool_advisor.asp

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Added on September 15, 2010, 12:05 pminverted

1hp panasonic
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 9.52mm

1.5hp panasonic
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 12.70mm

2hp panasonic
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 12.70mm

2.5hp panasonic
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 15.88mm

This post has been edited by maxguy: Sep 15 2010, 12:05 PM

the only difference of inverter type is they got additional cabling to external unit. this cabling always tend to be forgotten by installer. dem.

inverter
Refrigerant : R410A
1hp mitsubishi
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 9.52mm

1.5 mitsubishi
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 9.52mm

2hp mitsubishi
Liquid Pipe Size : 6.35mm
Gas Pipe Size : 12.70mm

2.5hp mitsubishi
Liquid Pipe Size : 9.52 mm
Gas Pipe Size : 15.88mm