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Air conditioning - Any recommendations please??

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Old 15-06-2016, 10:01 PM   #7831
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I realise that multi-split system i.e. system 2/3/4 is almost non-existent in Malaysia - Malaysians usually have 1 compressor for 1 indoor unit. I wonder why there is a difference in practice, although I know that cost of each system 1 in Malaysia is quite low, about RM1200 for a branded 9k btu non-inverter compressor + indoor unit

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Old 15-06-2016, 10:48 PM   #7832
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is there a recommended insulation thickness for drainage pipe?

default is 3/8"?
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Old 15-06-2016, 11:39 PM   #7833
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I realise that multi-split system i.e. system 2/3/4 is almost non-existent in Malaysia - Malaysians usually have 1 compressor for 1 indoor unit. I wonder why there is a difference in practice, although I know that cost of each system 1 in Malaysia is quite low, about RM1200 for a branded 9k btu non-inverter compressor + indoor unit
So cheap! Really good life over there. Imagine fix 4 in our hdb, SGD1500 at most.
Single split aircon very hard to gg and dont need servicing one.
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Old 16-06-2016, 12:02 AM   #7834
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looking for a set of 4 aircon units, one for each room.

previously panasonic was a HUGE disappointment, plagued with problems.

considering mitsubishi, seems quite alright. any comments guys??
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Old 16-06-2016, 12:12 AM   #7835
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i using Mitsubishi for 5 years. every night on since move in.
so far so good

just done 1 time chemical wash.
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Old 16-06-2016, 07:52 AM   #7836
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looking for a set of 4 aircon units, one for each room.

previously panasonic was a HUGE disappointment, plagued with problems.

considering mitsubishi, seems quite alright. any comments guys??
I have been using Panasonic for many years, using older National then change to Panasonic with the Ioniser function, no major problem but only wear and tear parts need to change.
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Old 16-06-2016, 08:53 AM   #7837
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is there a recommended insulation thickness for drainage pipe?

default is 3/8"?
Personal recommendation is 1/2 inch.
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Old 16-06-2016, 09:52 AM   #7838
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Personal recommendation is 1/2 inch.
Yes, agree. I also requested to use 1/2 inch insulation as well.
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Old 16-06-2016, 10:14 AM   #7839
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Yes, agree. I also requested to use 1/2 inch insulation as well.
Dear all,

I was given this as part of my material insulation during the initial quotation send via email and i got this as offered
- half inch Armaflex class "O" insulation
- G22 copper pipe
- 16mm drainage pvc pipe

however , On the contract (not yet signed)

a) upgrade to half inch thickness class O Armaflex for insulation. { for the copper pipe}

b) upgrade to G22 copper pipe.

c) upgrade to 16mm pvc for drain pipe c/w armaflex class 1 insulation. [1/4 inch]

I am wondering if all these times the 1/2 inch one is talking about is just for copper pipes only OR for both copper and pvc pipes? (i assume the latter)

Hopefully someone can enlighten me
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Old 16-06-2016, 10:37 AM   #7840
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same here. i think drainage pipe default is 1/4" (not 3/8" which i typo error)... izit necessary to upgrade to 1/2"?
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Old 16-06-2016, 11:04 AM   #7841
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My old Condenser do have a tray and water drainage pipe to toilet and it was done by previous owner's installer. It was a old type of setup and nowadays, nobody fit another tray below the Condenser for the water.
To prevent the spread of dengue, nowadays water tray is not allowed to install under the CU anymore...
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Old 16-06-2016, 05:16 PM   #7842
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From their catalogue, MXY4A28 got total capacity of 7.5kw without current limit and 7.2kw with.
MXY4G28 posted 6.5kw with no elaboration on current limit. Go convert kW to btu and figure.
not bad, lower power and can sell higher price
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Old 17-06-2016, 11:24 AM   #7843
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Sorry if this is a repeated question, can i know is there a major difference on the below Starmex models, i'm looking for System 4 for a 4RM.

MXY-3G28VA
MXY-4G38VA

Thanks in advance.
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Old 17-06-2016, 12:36 PM   #7844
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3g is system 3.
4g is system 4.

The model number usually can tell you about the system

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Old 17-06-2016, 02:02 PM   #7845
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can 1 compressor ( not sure what the unit outside the HDB is called) power 4 air con units in a flat?
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