Air conditioning - Any recommendations please?? - Part 2

[007Mi6]

Based on my master plan, 12k+9k+9k
Daikin 75 system 3 compressor. Temperature set to 26 fan speed 1 or 2, I can achieve the cooling and also saves energy right? My current setup is panasonic 26 degree quiet mode. But with system 4 compressor. Some months energy is 331kwh.

Sounds reasonable.

Per day 1kW for fridge, 2kW for lights and electronics, 1kW per user for storage heater or 0.5kW per user for instant heater. You are basically running on 5-6kW per day in aircon.

Your aircon is already quite ok. How much more savings do you want?

Many of us already shared how to make your room better sealed like solar film, curtain, sealing of door form leaking and using fans to circulate.

My final advice to you is, don’t use the aircon, just use fans. Sure save money.

You are asking for a lot of information where even the ME Starmex technicians cannot answer you.

 

[Jun Jun]

can replace a the whole fan coil unit, cost around 300-400 rather than change whole system.

Whole system i do not have to pay much. Just need to topup

 

[mark lim]

Sounds reasonable.

Per day 1kW for fridge, 2kW for lights and electronics, 1kW per user for storage heater or 0.5kW per user for instant heater. You are basically running on 5-6kW per day in aircon.

Your aircon is already quite ok. How much more savings do you want?

Many of us already shared how to make your room better sealed like solar film, curtain, sealing of door form leaking and using fans to circulate.

My final advice to you is, don’t use the aircon, just use fans. Sure save money.

You are asking for a lot of information where even the ME Starmex technicians cannot answer you.

he need to go speak with aircon engineers who design the system... i would hazard that they would tell him to design his own aircon.

 

[obichacha]

Whole system i do not have to pay much. Just need to topup

then should be the good reason, go ahead to replace to daikin

 

[obichacha]

Why don't you share about Panasonic Singapore Aircon you installed, how bad it was?

Have you solve your newly installed Panasonic 18k jet air sound?
the quality is premium right 🫢

 

[007Mi6]

Have you solve your newly installed Panasonic 18k jet air sound?
the quality is premium right 🫢

I have no sound to complain about.

 

[adezio777]

maybe yes cause the CSO is active, i dont spot any gap when they connect the insulation or installation all ok other then using feon to purg the pipe. but my 2nd ac maybe is newway. my gut tell me unless the 1st install is very good, getting another recommaned company to install is better. maybe pay them a fee to help check the 1st ac workmanship



i dont believe they got only 2 team and not sure if they subout. they also do commercial side. cannot be only 2 team and they got so many van, go their FB to see it
https://www.facebook.com/profile.php?id=100063773521353&sk=photos

My first aircon ME MXY-4A38VA was installed by Coolserve 8 yr ago.
No leaking, never have any issue with regular 3 mth cleaning all the way till recently then the compressor fan coil start vibrating.
My regular aircon serviceman from another company tell me had to change new aircon.

Initially want to get Gain City to install Daikin because now GC offer $500 cheaper on Daikin brand compared to other companies, plus can use $300 Climate voucher. However, GC sales Dept cannot promise me the Team that come to my house is experience one. They can only write a remark to request for one, but weather Installation team want to follow the request is another matter.

Hence, I go back to Coolserve and they came to install ME MXY-4H38VG system 4.
Again just like 8 yrs ago, they send their TOPGUN team led by Mr Yong. BTW, Mr Yong confirmed to me that for Coolserve installation Dept, there are just only 2 teams. Both teams are led by a at least 20 yr experience staff each. Furthermore, they are usually book up 3 weeks in advance.

I was super lucky that on that day, the other team leader went on holiday, so his team members join Mr Yong for my project. So, altogether 5 workers turn up. They start work at 10.30am and left at 330pm. Everything was done swee swee as i myself used to be a vehicle mech during NS. I see how they install 16mm Drainage pipe for 2h, then, follow by LHCT gas pipe SWG 21and lastly, installation of compressor before finally using vacuum pump to pump clean the copper pipe. Oh, also check that they use KEYSTONE copper wire and armaflex class zero insulator with CX shield early in the morning.

In conclusion, the team make me feel smart to choose Coolserve for aircon installation. From my observation, each team member knows their scope of work well and are a very cooperative team among themselves. Their team spirit are very high and professional too (No one stop to eat or talk nonsense to each other). A team that respects their leader and each member has ability to do their own scope of work to the standard required. All their team members are Malaysian chinese.

My ME System 4 as below:

ME MXY-4H38VG
MSXY-FP10VG
MSXY-FP13VG
MSXY-FP18VG
1/2 ARMAFLEX Class 0 (Now 3/4 getting more popular but might not squeeze into trucking)
CX Shield for outdoor
Copper Pipe G21 LHCT
Keystone 4C40/3C70
16mm drainage pipe
All in inclusive GST $5600/-.

 

[dethangel]

My first aircon ME MXY-4A38VA was installed by Coolserve 8 yr ago.
No leaking, never have any issue with regular 3 mth cleaning all the way till recently then the compressor fan coil start vibrating.
My regular aircon serviceman from another company tell me had to change new aircon.

Initially want to get Gain City to install Daikin because now GC offer $500 lower price on Daikin brand compared to other company, plus can use $300 Climate voucher. However, GC sales Dept cannot promise me the Team that come to my house is experience one. They can only write a remark to request for one, but weather Installation team want to follow the request is another matter.

Hence, I go back to Coolserve and they came to install ME MXY-4H38VG system 4.
Again just like 8 yrs ago, they send their TOPGUN team led by Mr Yong. BTW, Mr Yong confirmed to me that for Coolserve installation Dept, there are just only 2 teams. Both teams are led by a at least 20 yr experience staff each. Furthermore, they are usually book up 3 weeks in advance.

I was super lucky that on that day, the other team leader went on holiday, so his team members join Mr Yong for my project. So, altogether 5 workers turn up. They start work at 10.30am and left at 330pm. Everything was done swee swee as i myself used to be a vehicle mech during NS. I see how they install 16mm Drainage pipe for 2h, then, follow by LHCT gas pipe SWG 21and lastly, installation of compressor before finally using vacuum pump to pump clean the copper pipe. Oh, also check that they use KEYSTONE copper wire and armaflex class zero insulator with CX shield early in the morning.

In conclusion, the team make me feel smart to choose Coolserve for aircon installation. From my observation, each team member knows their scope of work well and are a very cooperative team among themselves. Their team spirit are very high and professional too (No one stop to eat or talk nonsense to each other). A team that respects their leader and each member has ability to do their own scope of work to the standard required. All their team members are Malaysian chinese.

... and this is the reason why I'm using coolserve over and over again for any repair work/maintenance.

I used to use Air Connections (popular by the forumers here) for maintenance, but then the installers were pretty rough with my FCU until 1 of the vane guides in the FCU broke. (yes i know my aircon is old but don't need to damage it right?)

First and last time.

 

[obichacha]

My first aircon ME MXY-4A38VA was installed by Coolserve 8 yr ago.
No leaking, never have any issue with regular 3 mth cleaning all the way till recently then the compressor fan coil start vibrating.
My regular aircon serviceman from another company tell me had to change new aircon.

Initially want to get Gain City to install Daikin because now GC offer $500 lower price on Daikin brand compared to other company, plus can use $300 Climate voucher. However, GC sales Dept cannot promise me the Team that come to my house is experience one. They can only write a remark to request for one, but weather Installation team want to follow the request is another matter.

Hence, I go back to Coolserve and they came to install ME MXY-4H38VG system 4.
Again just like 8 yrs ago, they send their TOPGUN team led by Mr Yong. BTW, Mr Yong confirmed to me that for Coolserve installation Dept, there are just only 2 teams. Both teams are led by a at least 20 yr experience staff each. Furthermore, they are usually book up 3 weeks in advance.

I was super lucky that on that day, the other team leader went on holiday, so his team members join Mr Yong for my project. So, altogether 5 workers turn up. They start work at 10.30am and left at 330pm. Everything was done swee swee as i myself used to be a vehicle mech during NS. I see how they install 16mm Drainage pipe for 2h, then, follow by LHCT gas pipe SWG 21and lastly, installation of compressor before finally using vacuum pump to pump clean the copper pipe. Oh, also check that they use KEYSTONE copper wire and armaflex class zero insulator with CX shield early in the morning.

In conclusion, the team make me feel smart to choose Coolserve for aircon installation. From my observation, each team member knows their scope of work well and are a very cooperative team among themselves. Their team spirit are very high and professional too (No one stop to eat or talk nonsense to each other). A team that respects their leader and each member has ability to do their own scope of work to the standard required. All their team members are Malaysian chinese.

8 years ago starmex MXY-4A38VA still quite new and the outdoor unit, made in Japan.
Vs R32 latest model MXY-4H38VG made in PRC.
I believe if you’re don’t mind to repair outdoor vibration sound, still can continues using again.

 

[adezio777]

8 years ago starmex MXY-4A38VA still quite new and the outdoor unit, made in Japan.
Vs R32 latest model MXY-4H38VG made in PRC.
I believe if you’re don’t mind to repair outdoor vibration sound, still can continues using again.

If i remember correctly, 4A38VA is the last compressor that are Made in Japan. There is no other compressor selling in Singapore market that is made in Japan by 2016.

I was lucky and damn proud of myself to be able to get it as ME has start introducing new model then, and that new model got some users already complain not so good. It took longer to cool the room and motor sound louder. And this model is not made in Japan anymore.

 

[obichacha]

If i remember correctly, 4A38VA is the last compressor that are Made in Japan. There is no other compressor selling in Singapore market that is made in Japan by 2016.

I was lucky and damn proud of myself to be able to get it as ME has start introducing new model then, and that new model got some users already complain not so good. It took longer to cool the room and motor sound louder. And this model is not made in Japan anymore.

The new model was made in China already.
because this is rare peoples order 38VG for Hdb flat.
Unlike 28 and 33 models still remain in Thailand made.

outdoor fan motor jet sound for daytime only.
the fan motor same as 24k single split.

unlike 28VG even unlocked the limiter with high fan noise. For daytime and nighttime still work in low noise.

I still prefer the old R410a 28 , outdoor has higher spinning sound, indoor much quickly temp reaching than new R32s

 

[benozw12]

Hi folks, my AC always cannot reach target temp like 22degC and below, regardless how long they have been swtiched on. It's only after a while that I increased temp to 25/26degC, then becomes single green light. Doors and windows are always shut. Fan speed 3 or 4.

My previous installer, GainCity, came down to check. Everything was OK. He deduced that it's because of my unit being the top floor and the extended parapet from roof over the condenser unit causing more heat trapped.

It's a system 3 with R32:
MXY-3H28VG
MSXY-FP10VG
MSXY-FP13VG
MSXY-FP18VG

I do not need rooms to always be at that low temp ( <22), but i wonder why my AC cannot achieve that. Is his deduction correct? Or the BTU insufficient considering that it's a top floor unit? TIA.

 

[obichacha]

Hi folks, my AC always cannot reach target temp like 22degC and below, regardless how long they have been swtiched on. It's only after a while that I increased temp to 25/26degC, then becomes single green light. Doors and windows are always shut. Fan speed 3 or 4.

My previous installer, GainCity, came down to check. Everything was OK. He deduced that it's because of my unit being the top floor and the extended parapet from roof over the condenser unit causing more heat trapped.

It's a system 3 with R32:
MXY-3H28VG
MSXY-FP10VG
MSXY-FP13VG
MSXY-FP18VG

I do not need rooms to always be at that low temp ( <22), but i wonder why my AC cannot achieve that. Is his deduction correct? Or the BTU insufficient considering that it's a top floor unit? TIA.

close door and window , single button powerful mode, I guess within 5mins auto off back to normal setting.
If still could not get within 5 hours, should be low gas pressure.
My master bedroom set on 26c with far bar 1.
No powerful mode. Sometime take 2 to 3 hours then light off.
If turn on turbo model , I think around 30-1 hours light off.
For common room 30mins light off, not need use powerful mode.

i prefer you call them back and check gas pressure got a little bit help

 

[mark lim]

Hi folks, my AC always cannot reach target temp like 22degC and below, regardless how long they have been swtiched on. It's only after a while that I increased temp to 25/26degC, then becomes single green light. Doors and windows are always shut. Fan speed 3 or 4.

My previous installer, GainCity, came down to check. Everything was OK. He deduced that it's because of my unit being the top floor and the extended parapet from roof over the condenser unit causing more heat trapped.

It's a system 3 with R32:
MXY-3H28VG
MSXY-FP10VG
MSXY-FP13VG
MSXY-FP18VG

I do not need rooms to always be at that low temp ( <22), but i wonder why my AC cannot achieve that. Is his deduction correct? Or the BTU insufficient considering that it's a top floor unit? TIA.

remove current limiter. also which f the 3 are on? 10 or 13 or 18 or all? if all then no way to hit 22c. maybe at night after a couple of hours. if 10 then the room is small and should be able to get 22.

 

[mark lim]

If i remember correctly, 4A38VA is the last compressor that are Made in Japan. There is no other compressor selling in Singapore market that is made in Japan by 2016.

I was lucky and damn proud of myself to be able to get it as ME has start introducing new model then, and that new model got some users already complain not so good. It took longer to cool the room and motor sound louder. And this model is not made in Japan anymore.

the A units are also more powerful. with 3A28 having 7.5kw but now 3H28 is only 6.2kw cooling. just to get the 3/4ticks because of the revised specs . in the end ticks are a lie....so you get cheating just like what VW did...

 

[petetherock]

hi,

how to remove the current limit ?

thanks

Have you read the past posts - you don't even need to read the entire thread bro...

 

[The_King]

My first aircon ME MXY-4A38VA was installed by Coolserve 8 yr ago.
No leaking, never have any issue with regular 3 mth cleaning all the way till recently then the compressor fan coil start vibrating.
My regular aircon serviceman from another company tell me had to change new aircon.

Initially want to get Gain City to install Daikin because now GC offer $500 lower price on Daikin brand compared to other company, plus can use $300 Climate voucher. However, GC sales Dept cannot promise me the Team that come to my house is experience one. They can only write a remark to request for one, but weather Installation team want to follow the request is another matter.

Hence, I go back to Coolserve and they came to install ME MXY-4H38VG system 4.
Again just like 8 yrs ago, they send their TOPGUN team led by Mr Yong. BTW, Mr Yong confirmed to me that for Coolserve installation Dept, there are just only 2 teams. Both teams are led by a at least 20 yr experience staff each. Furthermore, they are usually book up 3 weeks in advance.

I was super lucky that on that day, the other team leader went on holiday, so his team members join Mr Yong for my project. So, altogether 5 workers turn up. They start work at 10.30am and left at 330pm. Everything was done swee swee as i myself used to be a vehicle mech during NS. I see how they install 16mm Drainage pipe for 2h, then, follow by LHCT gas pipe SWG 21and lastly, installation of compressor before finally using vacuum pump to pump clean the copper pipe. Oh, also check that they use KEYSTONE copper wire and armaflex class zero insulator with CX shield early in the morning.

In conclusion, the team make me feel smart to choose Coolserve for aircon installation. From my observation, each team member knows their scope of work well and are a very cooperative team among themselves. Their team spirit are very high and professional too (No one stop to eat or talk nonsense to each other). A team that respects their leader and each member has ability to do their own scope of work to the standard required. All their team members are Malaysian chinese.

my 1st condensor was install by them, only time will tell (1 to 3yr) if there any workmanship issues like condensation at trunking, gas leak etc.......

if after 3yr no workmanship issues i may get them to install my 2nd unit

 

[Jun Jun]

my 1st condensor was install by them, only time will tell (1 to 3yr) if there any workmanship issues like condensation at trunking, gas leak etc.......

if after 3yr no workmanship issues i may get them to install my 2nd unit

Sounds cool

 

[adezio777]

my 1st condensor was install by them, only time will tell (1 to 3yr) if there any workmanship issues like condensation at trunking, gas leak etc.......

if after 3yr no workmanship issues i may get them to install my 2nd unit

Ya, i got follow most of your post here. I knew you read up a lot on aircon and went to many vendors before you finally shortlisted Coolserve to install for you.
I see my first aircon has no installation problem and your aircon till now no issue, that's why i go back to them.

When it comes to aircon which is a big-ticket item, I always ask myself, "if you engage this or that installer, yet it gives problem afterward, how would you feel?" So, I conclude:

if the installer got good track record, then, i can say to myself, "suay lor but have try my best to engage the reliable one."
But if I not sure of the installer track record, i know i will blame myself, "That person that come to your house to do installation is a man or ghost you don't even know, why are you so BRAVE and STUPID to hand over such large sum of hard earn money to him to install for you."

And then after goggling websites about some ruthless and money-face aircon contractors, I also lost hope and don't believe in so call "Installation warranty". To me, it's just a sales pitch for you to hand over your money to them quicker.
To every installation problem you encounter and complain to them, these ruthless contractors has already an excuse prepared long long ago for such issue. All these excuses are so well thought out through their many years of experience in handling customer complain, there is no way they will be liable for poor workmanship legally.

 

[The_King]

Ya, i got follow most of your post here. I knew you read up a lot on aircon and went to many vendors before you finally shortlisted Coolserve to install for you.
I see my first aircon has no installation problem and your aircon till now no issue, that's why i go back to them.

When it comes to aircon which is a big-ticket item, I always ask myself, "if you engage this or that installer, yet it gives problem afterward, how would you feel?" So, I conclude:

if the installer got good track record, then, i can say to myself, "suay lor but have try my best to engage the reliable one."
But if I not sure of the installer track record, i know i will blame myself, "That person that come to your house to do installation is a man or ghost you don't even know, why are you so BRAVE and STUPID to hand over such large sum of hard earn money to him to install for you."

And then after goggling websites about some ruthless and money-face aircon contractors, I also lost hope and don't believe in so call "Installation warranty". To me, it's just a sales pitch for you to hand over your money to them quicker.
To every installation problem you encounter and complain to them, these ruthless contractors has already an excuse prepared long long ago for such issue. All these excuses are so well thought out through their many years of experience in handling customer complain, there is no way they will be liable for poor workmanship legally.

Agree, we can only read so much.

On my side what I can do is minimize the issues like those lousy Contractor we all knew and how many shortcut they take.

I did wanted to install 15k and 9 or 12k at the same time. So can stack front and back.

But as said. I dont trust the installer, so to cut damage, let the first one install then see how.

So i choose 2 condensor but different yr to install like 3 yr apart

Why? 1st installer, see any issues like workmanship after 2 to 3 yr as these take time, if hv don't call them again.



Also dont want them to be the same age as they are to act as backup of each other, aka raid 1

2nd, now I understand why Pete always say over capacity is better. Based on my own testing 26c afternoon take not more then 15min to cool down while 21c need almost 1hr


FYI those that don't know what I mean, cool down times is based on starmax operations light

Etc........


Now is to use as per normal but take note of my ac limit (below 23c is a no no cause 21c already take over 50min to cool down mean in short use more electricity) and do my own diy cleaning