Air conditioning - Any recommendations please?? - Part 2

[virtualape]

Hi guys, would appreciate those experienced in air con can help advise me as its my first bto house. Im having a 5 room flat and is thinking to choose between the two following configurations:

1. System 3 - 24k for living room (with open kitchen concept but can close off kitchen with sliding door, 9k for common room, 18k for masterbedroom (knock down two room to become 1)

2. System 4 - 18k above sofa in living room, 9k above dining area, 9k for common room, 18k for masterbedroom (knock down two room to become 1)

Im torn between these 2, price difference 800 bucks to top up for additional air con unit. We're a newly married couple staying by ourselves, occasionally have guest coming over so we'll turn on the living room air con, wife is afraid of cold, but need air con to sleep at night. Day time if it gets really hot and humid we will on air con in the living room.

Thank you in advance!

from your description with system 3, 24k to power 2 areas; living and dining may take a longer time to cool the area assuming there are no partitions between the living and dining. but you can circumvent this by using a fan to cool the dining area too.

i would stick with system 4 as you can cool both areas at the same time by turning on both if you so desire to. downside is more trunking.

 

[kaysee]

from your description with system 3, 24k to power 2 areas; living and dining may take a longer time to cool the area assuming there are no partitions between the living and dining. but you can circumvent this by using a fan to cool the dining area too.

i would stick with system 4 as you can cool both areas at the same time by turning on both if you so desire to. downside is more trunking.

Hello. Thanks for your input! Agree with the trunking. Thats the down side, now headache trying to see whats the best way to hide trunking for the dining side. Yeapss there's no partition between living and dining. But if on normal days if just the both of us, we turn on 18k, will be sufficient right? We will be having ceiling fan as well. Problem now is We don't really have experience on how cool 18k vs 24k can do to a big area to decide which choice to go with. Haha.

Im also thinking if 18k will be too cold for the master bed room? As we're combining 2 rooms into 1, not sure if 12k will suffice. We usually on for 3-4 hours on timer when we sleep, then the rest of the night depend on standing fan to keep us cool.

Side note, the BTU for our compressor is only 24k as well. So if we on living room, cant on the room.

 

[iichigoz]

Hi guys, would appreciate those experienced in air con can help advise me as its my first bto house. Im having a 5 room flat and is thinking to choose between the two following configurations:

1. System 3 - 24k for living room (with open kitchen concept but can close off kitchen with sliding door, 9k for common room, 18k for masterbedroom (knock down two room to become 1)

2. System 4 - 18k above sofa in living room, 9k above dining area, 9k for common room, 18k for masterbedroom (knock down two room to become 1)

Im torn between these 2, price difference 800 bucks to top up for additional air con unit. We're a newly married couple staying by ourselves, occasionally have guest coming over so we'll turn on the living room air con, wife is afraid of cold, but need air con to sleep at night. Day time if it gets really hot and humid we will on air con in the living room.

Thank you in advance!

Hey, I just gotten my 4rm resale flat and I went with system 4. 24k for living rm and I also have a hacked wall so I have 2 rms to become 1. I do have a sliding door inbetween these 2 rms and I put 2 x 9k in each rm. The last rm is also a 9k.

 

[kaysee]

Hey, I just gotten my 4rm resale flat and I went with system 4. 24k for living rm and I also have a hacked wall so I have 2 rms to become 1. I do have a sliding door inbetween these 2 rms and I put 2 x 9k in each rm. The last rm is also a 9k.

Ah okay, so u have 3 air con in 3 rooms and the last one in living room. Is your resale the old kind of floor plan where the 4 room living area is as huge as the current 5 room living area? How's the 24k performance in your living room then? And why u went ahead with 24k instead of splitting into 2 (1 in living 1 in dining)?

 

[iichigoz]

Ah okay, so u have 3 air con in 3 rooms and the last one in living room. Is your resale the old kind of floor plan where the 4 room living area is as huge as the current 5 room living area? How's the 24k performance in your living room then? And why u went ahead with 24k instead of splitting into 2 (1 in living 1 in dining)?

Haha, I haven really tested it out now cos just installed today. Mine is the really old HDB where the dining area is in the kitchen. Will update again once I tested it out.

 

[kaysee]

Haha, I haven really tested it out now cos just installed today. Mine is the really old HDB where the dining area is in the kitchen. Will update again once I tested it out.

Hahaha oh. Nice nice. Thanks man. I need to confirm my order within the next few weeks. See if anyone else here can give their inputs. Haha

 

[xiangzeng]

Hello. Thanks for your input! Agree with the trunking. Thats the down side, now headache trying to see whats the best way to hide trunking for the dining side. Yeapss there's no partition between living and dining. But if on normal days if just the both of us, we turn on 18k, will be sufficient right? We will be having ceiling fan as well. Problem now is We don't really have experience on how cool 18k vs 24k can do to a big area to decide which choice to go with. Haha.

Im also thinking if 18k will be too cold for the master bed room? As we're combining 2 rooms into 1, not sure if 12k will suffice. We usually on for 3-4 hours on timer when we sleep, then the rest of the night depend on standing fan to keep us cool.

Side note, the BTU for our compressor is only 24k as well. So if we on living room, cant on the room.

How about increasing the capacity of the compressor to 38k btu to improve the cooling? 4a38va by Mitsubishi electric. Don't limit yourself to low capacity as the weather in Singapore will only become hotter every year. Spend more money on aircon now can reduce regrets later.

 

[kaysee]

How about increasing the capacity of the compressor to 38k btu to improve the cooling? 4a38va by Mitsubishi electric. Don't limit yourself to low capacity as the weather in Singapore will only become hotter every year. Spend more money on aircon now can reduce regrets later.

I'm going for LG. They don't have bigger compressor. The salesperson say the next level 30k btu is really old model and phasing out very soon. So no point. Does hdb allow split into 2 compressor?

 

[xiangzeng]

I'm going for LG. They don't have bigger compressor. The salesperson say the next level 30k btu is really old model and phasing out very soon. So no point. Does hdb allow split into 2 compressor?

You can ask the hdb branch office on procedures to install 2 separate compressors. I got the reply from an officer of hdb branch office recently.

1.There are no control on running current of electrical appliances but to be restricted by the 20Amps DP isolator or 15Amps power point.
2.No restriction on number of casement/window unit air-conditioners.
3.Maximum of 2 split-type air-conditioner condensing units (max. weight of 110kg each) are allowed to be installed externally.
4.For wall mounted air-con condensing units, each wall panel is allowed to mount 1 air-con condensing unit.

 

[durkheimian]

I'm going for LG. They don't have bigger compressor. The salesperson say the next level 30k btu is really old model and phasing out very soon. So no point. Does hdb allow split into 2 compressor?

hi, not an expert here. using 2 compressor is allowed. since you are a bto'er, you should have an air con ledge that can house 2 Cu. problem is, hdb provide only one 20a isolator at the ledge. you probably have to do up one more yourself. if you are using central storage heater for both bathrooms, you can re-route one of the heater point (which happens to be 20a located in the bathroom grille) to the ac ledge to be used as the second 20a isolator for your second cu. but if you are using both heater points for both bathrooms, you probably need to run another set of cables from the spare mcb (see: trunking). cheers.

 

[Ictstudent21]

deciding to install for my new bto

Mitsubishi Starmex System 3 ( 2 ticks ) 9kbtu x 3

or

Daikin System 3 ( 3 ticks ) 9kbtu x 3

Can experts advice which will be a better option to go for ?

TIA

 

[efreelancer]

when i say gas leak, i'm referring the refrigerant as gas.

so i supposed you have your ans now?

U0 is U0 System Shortage of refrigerant or EEV failure leh. why you cut out EEV failure?

chances are, is gas leak bad piping. but best get them to check ur unit.

Normally for shortage of refrigerant/gas leak or EEV failure, is it better to ask the gain city technician or daikin technician to fix it?

 

[kaysee]

hi, not an expert here. using 2 compressor is allowed. since you are a bto'er, you should have an air con ledge that can house 2 Cu. problem is, hdb provide only one 20a isolator at the ledge. you probably have to do up one more yourself. if you are using central storage heater for both bathrooms, you can re-route one of the heater point (which happens to be 20a located in the bathroom grille) to the ac ledge to be used as the second 20a isolator for your second cu. but if you are using both heater points for both bathrooms, you probably need to run another set of cables from the spare mcb (see: trunking). cheers.

You can ask the hdb branch office on procedures to install 2 separate compressors. I got the reply from an officer of hdb branch office recently.

1.There are no control on running current of electrical appliances but to be restricted by the 20Amps DP isolator or 15Amps power point.
2.No restriction on number of casement/window unit air-conditioners.
3.Maximum of 2 split-type air-conditioner condensing units (max. weight of 110kg each) are allowed to be installed externally.
4.For wall mounted air-con condensing units, each wall panel is allowed to mount 1 air-con condensing unit.

Thanks guys, appreciate it. Will ask for quotes for 2 compressor and consider if the price is not too high. haha

Hi guys, would appreciate those experienced in air con can help advise me as its my first bto house. Im having a 5 room flat and is thinking to choose between the two following configurations:

1. System 3 - 24k for living room (with open kitchen concept but can close off kitchen with sliding door, 9k for common room, 18k for masterbedroom (knock down two room to become 1)

2. System 4 - 18k above sofa in living room, 9k above dining area, 9k for common room, 18k for masterbedroom (knock down two room to become 1)

Im torn between these 2, price difference 800 bucks to top up for additional air con unit. We're a newly married couple staying by ourselves, occasionally have guest coming over so we'll turn on the living room air con, wife is afraid of cold, but need air con to sleep at night. Day time if it gets really hot and humid we will on air con in the living room.

Thank you in advance!

Up my post. Anybody else can share their experience? Appreciate your input !

 

[cheongking888]

Nat Aire closed shop liao.

 

[cheongking888]

I'm going for LG. They don't have bigger compressor. The salesperson say the next level 30k btu is really old model and phasing out very soon. So no point. Does hdb allow split into 2 compressor?

I am using LG ACU - A4UQ30GFA0 (Made in Korea) for my System 4. Super quiet but huge in size.

If you can install 2 compressors, I suggest you do so. If I can install 2 compressors I would do so.

 

[kaysee]

I am using LG ACU - A4UQ30GFA0 (Made in Korea) for my System 4. Super quiet but huge in size.

If you can install 2 compressors, I suggest you do so. If I can install 2 compressors I would do so.

nice. finally a rare LG user here. hahaha ! yeah, i think i'll check to see if add one more compressor to split up how much. now 4 units already super chor. add one more compressor lagi worse.

btw what configurations did you do btw? living room 18k or 24k? downside of LG is their biggest compressor is 24k only. the 30k one the sales person say dont recommend as going to be discontinued soon.

 

[efreelancer]

thanks for sharing. i think i will get a starmex instead...

hope your problem will be resolved soon.

My Daikin aircon (single unit) bought 1yr+ from gain city not blowing cold air anymore
Light keep blinking. Any bro know possible reasons or how to troubleshoot?

My previous air con was starmex (from shop) and lasted me many years.

Now will evaluate the workmanship and after sales service of gain city and daikin technicians. Will update later.

 

[nakitaro]

Normally for shortage of refrigerant/gas leak or EEV failure, is it better to ask the gain city technician or daikin technician to fix it?

u alrdy say gt warranty, just get gain city. because if gas leak, you shld report here.

 

[nakitaro]

Thanks guys, appreciate it. Will ask for quotes for 2 compressor and consider if the price is not too high. haha

Up my post. Anybody else can share their experience? Appreciate your input !

i wldnt recommend lg. not because i've used them before but i did have a look at its structure and stuff. mitsubishi is still better designed.


also, i don't recommend two compressor if one compressor enough. just get the 48va from mitsubishi

 

[cheongking888]

nice. finally a rare LG user here. hahaha ! yeah, i think i'll check to see if add one more compressor to split up how much. now 4 units already super chor. add one more compressor lagi worse.

btw what configurations did you do btw? living room 18k or 24k? downside of LG is their biggest compressor is 24k only. the 30k one the sales person say dont recommend as going to be discontinued soon.

My is FCU - AMNC09GDBA2 - 9k BTU x 3 no & AMNC12GDBA2 - 12k BTU x 1 no (All Made in Korea) for my 4 bedrooms.

I have no idea whether the 30k is going to be discontinued or not. I got it because I only can have 1 ACU and all my 4 rooms must turn on the aircon.