Hi Everyone,

I am currently looking to install a new aircon for my new house's living room. The living and dining room are basically together as a whole. No wall in between.

I am thinking of installing this type of aircon. It is the mini cassette type. It is installed in the ceiling. I find that this is quite useful as it allows the air flow from the middle of the room instead of from any one wall.

http://www.panasonic.com.my/web/pid/1644/Feat

Anyone have used this type of aircon and can give their feedback?

Normally, if installing this type of cassette-ceiling mounted aircon in the plaster ceiling, should the aircon be install first or the plaster ceiling first? BTW, this will be new ceiling as well..

Cheers

This post has been edited by kelvyn: Apr 25 2010, 01:17 AM

This was the note that I received from Panasonic Malaysia!


Please note that installing Panasonic wall mounted Inverter type of air conditioner [1.0hp – 2.5hp using R410A as refrigerant]
requires a minimum of 0.6mm thickness of copper piping and indoor and outdoor units must be connected with 4 wires
(which are live, neutral, communication and earth wires).

The connecting copper piping between indoor and outdoor units needed to be vacuumed before unit operation.
Therefore, please refer to the installer to confirm the above product installation specification.

This post has been edited by kelvyn: Jul 1 2011, 09:38 PM

For Panasonic inverter aircon, the difference is only the econavi and autocomfort. More like additional features.

According to what I was informed by Panasonic Malaysia, for inverter air con, they require a min of 0.6mm thickness copper piping.
The must be 4 wires (which are live, neutral, communication and earth wires) between the indoor and outdoor unit.

Should be OK as they are quite close (slightly lower ) to the quotes that I have received previously

Install the compressor (external) and blower (internal) plus 3'-4' of exposed piping

If you have got your contractor to install the piping and wiring beforehand or your house comes pre-installed with the copper piping and wiring, Then would be conceal

If not will be messy with all the hacking

What wiring do you mean? Wiring from the aircon switch?

There are the wires from the aircon switch (where you can switch the aircon on & off) plus.
There are copper piping and wiring (3 nos for non inverter & 4 wires for inverter aircon) between your blower unit to the compressor.

Depending on the location of your blower unit and the compressor. In some instances, you may be able to camouflage the piping. Else can use PVC trunking if it is on the external walls

I did not install a 2HP aircon. I have only 1 HP and 1.5HP.
If you intend to install the 1.5HP aircon using the initially installed copper piping for the 2HP, it should be OK.
You cannot install the 1.5 HP to a 1HP copper piping

What bro serofax said is very true.

Looking at your plan, you have placed the AC in the living room wall (party wall to your neighbour)
From this location, only the living room area would be covered by the AC. You will not be getting much in the dining area. Unless this is what you intend.

I would reckon that placing your AC unit along the 12' walls (balcony or the kitchen wall) would be better.
To have better circulation, it would be best to have 2 smaller capacity AC placed at both ends instead on one large capacity. This was the advice that I got when I was planning my AC.

Was using Mitsubishi slim 1Hp before. When new, quite quiet. After few year of usage, getting slightly noisy. Nothing major. No major repair required.

York, Acson & Daikin are from the same manufacturer - OLY Manufacturing

Don't be surprise when Mitsubishi aircon's compressor starts making noise after few years of usage. That's what happen to mine

For aircon sizing, you could try looking here...

http://www.energystar.gov/index.cfm?c=room..._properly_sized

Actually, I also did not use them

cos I do not need very low temperature.
All bedrooms - 1HP
Living & Dining - 1.5 HP

The sizing of aircon HP will depend on the location of the room. Is the room directly below a roof, facing West, etc?

Having said that, a rough rule of thumb method that I was told.
For bedroom, use between 30-40
For Living, use between 40-50
(use the higher figure if you require lower temp)

1. Multiply the floor area with the above figures.
2. Then divide them with 8000.

This should give a rough HP for the aircon.

Good and reliable for the price you pay.
I am also using them

Forgotten the exact amount. Will check the receipt tonight and PM you later.

If the 20' aircon piping is really conceal in the wall, then the price is reasonable.

Any new generation 1 HP split unit aircon can be connected safely to the 13A (provided it is not shared with heavy appliances like Oven, heater, etc)

Have not heard of 1.75HP aircon. It is either 1.5HP or 2HP