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Air conditioning - Any recommendations please??

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Old 12-05-2015, 04:13 PM   #5791
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To ipaq4444,

Best is insulate both.

And if 4 sets of piping with 1/2 insulation, cannot fit into 4 x 3 trunking, it will be squeezed and defeats the purpose of having thicker insulation in the first place.

Min 6 x 3 or 6 x 4 for better fitting.
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Old 13-05-2015, 03:10 AM   #5792
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Hi guys,

My 2.5 yr aircon not cold anymore. Checked and found out that refrigerant is kosong already Apparently there's a leak somewhere

My question is must I change all the aircons? Can I just change the piping but retain the condenser & evaporator units to save cost?

Is there any other way out to resolve the gas leaking problem?
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Old 13-05-2015, 04:59 AM   #5793
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Hi all, can I ask a question on electrical bill.

Setting temp to 25 degree with fan speed max is it cheaper than setting temp to 21 degree with fan speed lowest ?
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Old 13-05-2015, 06:55 AM   #5794
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Hi all, can I ask a question on electrical bill.

Setting temp to 25 degree with fan speed max is it cheaper than setting temp to 21 degree with fan speed lowest ?
Each stop lower temperature are tell compressor for work harder... Compressor would running from Min. to Max input watts.

Fan motor of indoor just indicated for max 15-30w only.. Even switch to maximum fan speed just 30w only.
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Old 13-05-2015, 07:22 AM   #5795
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Hi guys,

My 2.5 yr aircon not cold anymore. Checked and found out that refrigerant is kosong already Apparently there's a leak somewhere

My question is must I change all the aircons? Can I just change the piping but retain the condenser & evaporator units to save cost?

Is there any other way out to resolve the gas leaking problem?
2.5 yrs still new for all, just look at recommended Aircon services needed thread will do.

But make sure check all indoors and outdoor compressor gas pipes connections for flared nuts.
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Old 13-05-2015, 08:52 AM   #5796
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Each stop lower temperature are tell compressor for work harder... Compressor would running from Min. to Max input watts.

Fan motor of indoor just indicated for max 15-30w only.. Even switch to maximum fan speed just 30w only.
Fan Max liao...............
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Old 13-05-2015, 09:29 AM   #5797
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To ipaq4444,

Best is insulate both.

And if 4 sets of piping with 1/2 insulation, cannot fit into 4 x 3 trunking, it will be squeezed and defeats the purpose of having thicker insulation in the first place.

Min 6 x 3 or 6 x 4 for better fitting.

so there is a 6 x 3 trunking in the market? all along i only know there is a 3x4 and the ugly 4x4
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Old 13-05-2015, 09:57 AM   #5798
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Fan Max liao...............
Wow you can sleep ah? Higher noise wow.

Now was hot weather now bedroom just remain on 25C with 2 speed of fan only.

If still won't feel that cold & go down 1 step at least still maintain on 24C as lower now

But make sure to change your additional filter will do
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Old 13-05-2015, 10:55 AM   #5799
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Wow you can sleep ah? Higher noise wow.

Now was hot weather now bedroom just remain on 25C with 2 speed of fan only.

If still won't feel that cold & go down 1 step at least still maintain on 24C as lower now

But make sure to change your additional filter will do
I will changed my filter every 3 months..................
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Old 14-05-2015, 01:43 PM   #5800
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Hi all, can I ask a question on electrical bill.

Setting temp to 25 degree with fan speed max is it cheaper than setting temp to 21 degree with fan speed lowest ?
Each stop lower temperature are tell compressor for work harder... Compressor would running from Min. to Max input watts.

Fan motor of indoor just indicated for max 15-30w only.. Even switch to maximum fan speed just 30w only.

I was looking to ask this question also. But thanks to Kinsim for answering. I always put my aircon at 25 degrees with low fan speed. I was worried if I increase my fan speed the compressor might work hard and more electrical bills incurred
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Old 14-05-2015, 04:25 PM   #5801
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To elginlye,

Topping up gas once every 2 years is still acceptable.
I think you can ignore it and just top up.
If it happens < 6 months once, then maybe you can consider to do some repair works to it.
Sigh, previous gas top-up last < 1mth, left 4 bar.
Considering leak-test to determine if leak is due to
- equipment (4yr old Mitsu sys4)
- piping (95% new R410a piping, <10% reuse R22 piping).

Is it usual for piping leak to develop so quickly/suddenly over 2 months?
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Old 14-05-2015, 04:51 PM   #5802
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I was looking to ask this question also. But thanks to Kinsim for answering. I always put my aircon at 25 degrees with low fan speed. I was worried if I increase my fan speed the compressor might work hard and more electrical bills incurred
If you want find the correct answer from inverter model, when turn to high fan speed these was instant change speed from compressor spining speed and also fan motor speed as well.

You can hear the compressor works like high JET speed as a aircraft kick on.

But won't be maintain that high jet speed on full time, jus to reaching to suit as cooling the room for while only.

Once the cooling was enough then still turn to low speed to keep as maintain on what pre-set temp. degree as what you set from.
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Old 14-05-2015, 04:55 PM   #5803
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To Jeremy1,

Higher fan speed will help to increase airflow and cool down the room faster which will actually saves energy bills.
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Old 14-05-2015, 10:37 PM   #5804
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To Jeremy1,

Higher fan speed will help to increase airflow and cool down the room faster which will actually saves energy bills.
Noted. I now set max.................
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Old 15-05-2015, 05:30 PM   #5805
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my apologies if my qns gonna sound noob.. hahz

say i have 3 bedrooms and a living room abt 5m by 6.4m, should i go for system 5 or system 4?

as of now, im considering Samsung's Sys 4? should i go for it?
my main concern is the durability and maintenance.
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