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Air conditioning - Any recommendations please??

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Old 27-10-2012, 09:53 PM   #3106
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to ice_kacang,

Inverter should be able to save 20-30% based on similar usage patterns.
Temp regulation, should be more comfortable as compressor can run @ different speeds instead of fixed speed for conventional system.

Thanks for the feedback. Also thumbs up to your blog, very informative indeed. By the way, what's your opinion on getting the installer to do pressure testing to the refrigerant pipe after installation. I check with Gain City and they quoted additional $300.

My existing air cond piping is concealed by the built in cabinets and the replacement system will be using the same routing, though I intend to change the entire trunking and piping system as part of the replacement. The previous installer did a very good job as there was absolutely no leak for the past 10 years. Not sure how's the workmanship these days though.....
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Old 28-10-2012, 10:31 PM   #3107
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If you want, do the pressure test before installation.
If test results is positive, u can use back your existing pipes.
If negative, then change the rooms (pipes) which are leaking.
Thanks for your comments on my blog.
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Old 31-10-2012, 01:38 PM   #3108
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If you want, do the pressure test before installation.
If test results is positive, u can use back your existing pipes.
If negative, then change the rooms (pipes) which are leaking.
Thanks for your comments on my blog.
thanks for the advice.
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Old 01-11-2012, 03:36 PM   #3109
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Hi terumo,

Got the quote for System 4 as below, is the price reasonable? Any better materials from their supplied? Your kind advise please. Thanks

To supply and install one set of “Mitsubishi Electric” R410 multi split inverter aircon

M/N: MXY4A28/MSYGE10 x 3/MSYGE26 (Hall @ 24,225 BTU) @$4170

To supply and install the airconditioners with G23 copper pipe not exceed 15m per fan coil unit, upgrade to ˝ thick Class O thermaflex for indoor gas pipe unit and Class 1 black rubber insuflex for outdoor gas pipe unit, Singapore Keystone cable, 16mm pvc pipe, pvc trunking and stainless steel bracket.

Under renovation will provide two trips – 1s trip run pipe & site discussion, 2nd trip – install aircon
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Old 01-11-2012, 08:26 PM   #3110
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Looking for a 4:1 or a 5:1 (haven't decided) energy saving air-conditioning unit for my home. Any recommendations? I saw a few posts in the first page saying 1.8-2k can get including installation.

How about removing of previous unit? Does installation "pao" together?

How much does it cost to hire someone to remove previous old/spoilt unit?

Edit: Is it possible to have my old unit removed if there are air-conditioning pipes running behind in-built wardrobes? If it is possible, how much would it cost?

Last edited by Kooosh; 01-11-2012 at 08:30 PM..
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Old 01-11-2012, 11:14 PM   #3111
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to ahcek,

Quote seems reasonable.
Whats ur square area for your hall?
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Old 01-11-2012, 11:14 PM   #3112
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Max sys 4 inverter @ the moment.
No more sys 5.
$2k, i think cant get sys 4 inverter. Maybe sys 3 non inverter.
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Old 01-11-2012, 11:52 PM   #3113
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Any recommendations for sys 3 non-inverter

Hi, I am planning to get a Sys 3 non-inverter for my rooms. Have to go for non-inverter due to budget (around 2k).

So far, the posts mostly mentioned inverter models and brands. Can I seek your comments on which sys 3 non-inverter brand / model is good / reliable / value for money please?

Your opinions will be greatly appreciated!
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Old 06-11-2012, 01:13 AM   #3114
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Non inverter i will recommend Daikin ma56 model.
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Old 06-11-2012, 10:30 AM   #3115
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Hi guys,

Can recommend a Sys 3 Inverter for my 4-Room HDB? Not planning to install in Living Room.
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Old 06-11-2012, 04:28 PM   #3116
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to ahcek,

Quote seems reasonable.
Whats ur square area for your hall?
Hi terumo,

a) My hall area is around 46sqm. So, is 24K BTU good enough?

b) The contractor told me that MSYGE26 is 26K BTU? But, I heard other shop said MSYGE26 is just 24K BTU. Your advise please.

c) For the insulation, is ˝ inch thick Class O thermaflex for indoor gas pipe unit a MUST? My contractor said using ˝inch thick will resulted the trunking be 4inch wide, true? He said 3/8 inch is good enough.

d) Class 1 black rubber insuflex better than Armaflex?

Hope to hear your expert advise please.

Thanks.
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Old 08-11-2012, 12:00 AM   #3117
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to ahchek,

a. 24k btu is just nice.

b. Ge26 is around 24k btu. +/- 2k btu is ok. Some people will refer it as 26k btu due to the model number.

c. Using 1/2 insulation will result in bigger trunking. True.
3/8 is enough, if you r worried about condensation/sweating issues, then you may upgrade to 1/2.
1/2 insulation is usually used if the piping is above false ceiling or concealed in wall.

d. IMO, Armaflex is one of the better insulation available. Class 1 is good enough.
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Old 08-11-2012, 11:28 AM   #3118
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hi all,

is the $2699 for Panasonic Inverter System 3 (CU3S27MKZ/ CSS9NKZW x 3) a gd deal?

include:
1. GST
2. 2 trip installation
3. Armaflex 1/2 Inches Class 1 Insulation/ G23 Copper Pipe/ 16mm drainage pvc pipe.
4. 1year warranty for worksmanship & air-con equipments. 5 years warranty for compressor
5. Dismantle and disposal exisitng aircon.

I saw gaincity website listed the same model for $2599, but not sure what piping and insulation size they used though?
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Old 08-11-2012, 01:06 PM   #3119
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to ahchek,

a. 24k btu is just nice.

b. Ge26 is around 24k btu. +/- 2k btu is ok. Some people will refer it as 26k btu due to the model number.

c. Using 1/2 insulation will result in bigger trunking. True.
3/8 is enough, if you r worried about condensation/sweating issues, then you may upgrade to 1/2.
1/2 insulation is usually used if the piping is above false ceiling or concealed in wall.

d. IMO, Armaflex is one of the better insulation available. Class 1 is good enough.
Thanks terumo.

Pertaining on 1/2 insulation, why is it so the trunking would be 4" as 3/8 and 1/2 is only different of 1/8in? portion of my trunking would be above false ceiling. Is it very critical for condensation/sweating issues on 3/8?

Sorry to keep asking as I just to ensure I wouldn't face much problem later.

Thanks.
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Old 09-11-2012, 12:54 AM   #3120
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my outdoor pcb board is damaged, so i was told to buy a new one.. i ordered it and collected it - now i need a aircon fixer to help me put it in..

anyone got lobang?
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