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Air conditioning - Any recommendations please??

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Old 07-06-2012, 11:04 AM   #2851
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i have an interesting question to ask.

i have inverter aircon installed in my house, but during the night (6-8hrs) i set the fan speed to a fixed speed (2/4) instead of Auto, does this negate the electricity saving functionality of an inverter aircon?
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Old 07-06-2012, 02:03 PM   #2852
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To snokey,
Fan speed does not affect energy consumption much.
Very marginal.
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Old 07-06-2012, 02:04 PM   #2853
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Vjomurj,

Your compressor should be ble to install outside the windows.
Did u check, the neighbors in your blk, did they install 2 compressors?
If yes, how they place it?
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Old 07-06-2012, 04:32 PM   #2854
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Hi Terumo,

A few questions which i hope you can help. Can i check if there are places where i could get: (1) a vertical window casement air-con; and (2) a horizontal type air-con which sits in a hole in the wall?

The Courts surveyor told me that major works are needed to install those system-3 kind (piping issues) and hence better for me to buy back my original types. I checked with courts but i found out that they don't sell (2) above anymore.. haiz..

Thank you!!
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Old 07-06-2012, 06:54 PM   #2855
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Yandao07,

Those box type that sits in a hole in the wall, is window aircon.
Can only be installed in the bedroom near the toliet or master room provided you have a window opening already provided by HDB.

Those casement type can be installed onto sliding windows.

Why major works are required for system 3 type? Do u have built in fixtures/fittings?
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Old 08-06-2012, 12:18 AM   #2856
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my compressor died, should i replace just the compressor?

My a/c is 7 years old. the 2 units are working fine.

tks.
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Old 08-06-2012, 09:00 AM   #2857
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Hi terumo,

Is this quote reasonable? I got this from kaisoon.

MHI Sys 3 Inverter for 3 bedrooms - $2470
G23 copper pipe
16mm drainage pipe
1/2 inch Class 1 insulation (Insuflex)
1 Trip installation
Unlimited Trunking and Piping
Free Site Survey
5yrs warranty on compressor, 5 yrs workmanship and 1yr spare parts.
Final price included GST, labour, transport and installation.

*Upgrade to Armaflex - add $100
*Upgrade to 3yrs spare parts - add $200

If get ME will be $2670. Is the quote and items reasonable? Should i upgrade to armaflex? I read from online actually insuflex and armaflex is about the same. And the aircon guy told me armaflex is good for absorbtion but not good at bending....is it true?

Anyone have bad or good reviews on kaisoon? Pls advise. Thanks.
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Old 08-06-2012, 02:04 PM   #2858
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Hi

I'm interested in getting a system 3 Daikin model 3MKD71ESG. May I know what is the difference between a unit with/without Ampere Limitation?
I'm living in a 5 room HDB flat which is 20 yrs old. Can my flat support 3MKD71ESG without Ampere Limitation or 3MKD71ESG(8.5A)?
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Old 08-06-2012, 02:30 PM   #2859
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Yandao07,

Those box type that sits in a hole in the wall, is window aircon.
Can only be installed in the bedroom near the toliet or master room provided you have a window opening already provided by HDB.

Those casement type can be installed onto sliding windows.

Why major works are required for system 3 type? Do u have built in fixtures/fittings?

thanks for your reply. We already have a hole in the wall le, so we cld use the windows aircon, just that we tot to change since 2 air-cons break down at once.

The contractor mentioned that we have to either take down our built-in cabinets (which are pretty substantial) or run the pipes along the walls (i.e. they could not be concealed). is there anyway around this ar? thanks thanks
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Old 08-06-2012, 04:30 PM   #2860
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to yandao07,
This u need an aircon guy to come and do a site assesment to confirm the details.

to tootlim,

3mks71esg is the r410a multi split unit.
Has your main incoming power supply been upgraded before by HDB?
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Old 08-06-2012, 04:37 PM   #2861
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yup I have an system 3 samsung non-inverter...but may I know the difference between 3MKD71ESG without Ampere Limitation and 3MKD71ESG with Ampere Limitation (8.5A) & (11A)? Can I used all of them?
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Old 08-06-2012, 05:55 PM   #2862
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Vjomurj,

Your compressor should be ble to install outside the windows.
Did u check, the neighbors in your blk, did they install 2 compressors?
If yes, how they place it?
Thanks Terumo Bro! There are some units with the condensers outside the windows...but managed to get hold of a HDB technician...his response was all application for permits to install the condensers outside are put on hold at the moment (for the 6-7 blocks of HDB in my area) due to some structural issues. So no choice for me, have to retain the condenser inside my service balcony.
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Old 08-06-2012, 07:36 PM   #2863
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Vjomurj,
Then maybe inside is the only option for now.

To tootlim.
The equipment is the same. Just that pcb side, some setting Is done so that the compressor doesn't rev as much, thus does not consume much amp. Within the limit.
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Old 08-06-2012, 08:04 PM   #2864
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oh so if I have a power supply of 8.5A, I can still use the model without Ampere Limitation even though it exceed 8.5A?
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Old 08-06-2012, 11:45 PM   #2865
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Hi terumo,

Is this quote reasonable? I got this from kaisoon.

MHI Sys 3 Inverter for 3 bedrooms - $2470
G23 copper pipe
16mm drainage pipe
1/2 inch Class 1 insulation (Insuflex)
1 Trip installation
Unlimited Trunking and Piping
Free Site Survey
5yrs warranty on compressor, 5 yrs workmanship and 1yr spare parts.
Final price included GST, labour, transport and installation.

*Upgrade to Armaflex - add $100
*Upgrade to 3yrs spare parts - add $200

If get ME will be $2670. Is the quote and items reasonable? Should i upgrade to armaflex? I read from online actually insuflex and armaflex is about the same. And the aircon guy told me armaflex is good for absorbtion but not good at bending....is it true?

Anyone have bad or good reviews on kaisoon? Pls advise. Thanks.
Hi terumo, need your advise. Is it worth to upgrade the insulation and spare parts warranty? Thanks.
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