Air conditioning - Any recommendations please?? - Part 2

[The_King]

Could I check, do you remember how long did your installer vacuum the new condenser for?

Cool serve nv vacuum, he told me system 1 no need which is bs.

Only do gas purge


Nv ask then to redo cause scare the installer sabo

So I wait 3 yr or 2026 see any issues on workmanship

 

[The_King]

Actually the starmex 12k single split FCU is bigger sized vs the 12k multi split one. And the fan speed is higher. So in a sense you are already cooling pretty well.
if you want to cool faster then press powerful multiple times.
if you look at specs for 12k and 15k, both can ramp up the inverter by an extra 0.6kw of cooling. But the 18k can go ramp up 1.2kw vs rated. The 18k really gives that extra headroom. But you do need to force it by using powerful. If you have a clamp ammeter then you can also monitor the current draw to see how the logic operates. I’m sure with powerful button it goes to max cooling at 4.1kw for the 12k but no idea if you put at 16c if it does the same.

I don't think I use the power mode, just want to know my ac limit.

Highly unlike I run 21c as I knew it take over 1hr to reach temp.


I just stick to my current setting 25 or 26c with fan

2nd condenser maybe Fujitsu (Taiwan) or Panasonic (Malaysia) or maybe stick with starmex

 

[Jun Jun]

Also in terms of cooling and energy saving. As i am running the 12+9+9 setup should i topup 60 to get the MKM85VVMG, or stick to MKM75VVMG? My usage at night 3 turn on. Morning 1 turn on. Use for more than 12 hrs.

 

[petetherock]

$60 bucks only?? No brainer la bro..

 

[obichacha]

Also in terms of cooling and energy saving. As i am running the 12+9+9 setup should i topup 60 to get the MKM85VVMG, or stick to MKM75VVMG? My usage at night 3 turn on. Morning 1 turn on. Use for more than 12 hrs.

Overkilling your energy and monthly bill.
12+9+9 basically system 3 like starmex 28k btu more than enough

 

[mark lim]

Also in terms of cooling and energy saving. As i am running the 12+9+9 setup should i topup 60 to get the MKM85VVMG, or stick to MKM75VVMG? My usage at night 3 turn on. Morning 1 turn on. Use for more than 12 hrs.

Just $60? No brainer …. Top up

 

[Jun Jun]

Just $60? No brainer …. Top up

Annual electricity consumption 576 vs 768. Tested in lab 8 hours. My house uses more than 8 hours so the gap will become bigger

 

[Jun Jun]

Just $60? No brainer …. Top up

Annual electricity consumption 576 vs 768. Tested in lab 8 hours. My house uses more than 8 hours so the gap will become bigger

Overkilling your energy and monthly bill.
12+9+9 basically system 3 like starmex 28k btu more than enough

What does it mean?

 

[Jun Jun]

Also because after consulting another sales manager they said MKM75VVMG is sufficient. No need to topup more. But if i want cooler get MKM85VVMG

 

[obichacha]

Also because after consulting another sales manager they said MKM75VVMG is sufficient. No need to topup more. But if i want cooler get MKM85VVMG

single split can optimum maximum cooling.
Unlike multi split unit, the minimum and maximum capacity and cooling has been control by main board.
You want more detail can refer from daikin charts.

 

[The_King]

Annual electricity consumption 576 vs 768. Tested in lab 8 hours. My house uses more than 8 hours so the gap will become bigger

need to factor in

576 say it full load electricity consumption duration
vs
768 say it full load electricity consumption duration


like in my case if i need 21c. i know my 12kbtu compressor will run at full load least at 50min to 1hr 20min to reach 21c = full load electricity consumption

vs say 18kbtu compressor will run at full load least at ??min to ??min to reach 21c. since i dont have the data i cant tell = full load electricity consumption

 

[Boeing101]

Also because after consulting another sales manager they said MKM75VVMG is sufficient. No need to topup more. But if i want cooler get MKM85VVMG

That aircon guy pretends to be helping you save money only. If you dont take 85V for another $60 more, later he go home surely he will tell his wife you got mental illness….. and surely every reader who read your this post think likewise ……. Ahahahaha….just kidding!

But on serious note, if often need to ON 3 rooms at same time, 75V will took longer to cool the rooms then this is not good for the compressor engine which in turn shorter it life. Then did i read somewhere you will ON it in daytime and nighttime some more? If this is true, i think even 85V engine will melt, i think you better go ask upgrade to 100V is how much more? Lol

 

[Jun Jun]

That aircon guy pretends to be helping you save money only. If you dont take 85V for another $60 more, later he go home surely he will tell his wife you got mental illness….. and surely every reader who read your this post think likewise ……. Ahahahaha….just kidding!

But on serious note, if often need to ON 3 rooms at same time, 75V will took longer to cool the rooms then this is not good for the compressor engine which in turn shorter it life. Then did i read somewhere you will ON it in daytime and nighttime some more? If this is true, i think even 85V engine will melt, i think you better go ask upgrade to 100V is how much more? Lol

Huh? But i consulted daikin they say sufficient for MKM75VVMG based on my usage. I just want a 3rd opinion only as not very confident.

 

[obichacha]

whatever we are saying here already.
He’s listen to salesman only.
Next time why electricity bills so high don’t blame us and why we didn’t stop him to take 75V and over 85V
Maybe he’s need more capacity to reserve and install extra fan coil on smaller bedroom or study room something.

previously AllBest aircon , asked me charged the idea from system 4 + system 2 , instead of system 3 + 3.
System 4 normal operating for 3 rooms current higher than system 3.
That is the best idea and option for buyers.
Not like installed 3 room and die die must be using system 4 condenser.

 

[mark lim]

Huh? But i consulted daikin they say sufficient for MKM75VVMG based on my usage. I just want a 3rd opinion only as not very confident.

for $60, just top up. it is like asking you to top up 5cents to upsize a meal... you dont want meh?

 

[mark lim]

whatever we are saying here already.
He’s listen to salesman only.
Next time why electricity bills so high don’t blame us and why we didn’t stop him to take 75V and over 85V
Maybe he’s need more capacity to reserve and install extra fan coil on smaller bedroom or study room something.

previously AllBest aircon , asked me charged the idea from system 4 + system 2 , instead of system 3 + 3.
System 4 normal operating for 3 rooms current higher than system 3.
That is the best idea and option for buyers.
Not like installed 3 room and die die must be using system 4 condenser.

system4 capacity allows the 3 rooms to cool faster. of course consume more energy. you could always undersize and let it run longer... eventually it will hit set temperature.

 

[obichacha]

system4 capacity allows the 3 rooms to cool faster. of course consume more energy. you could always undersize and let it run longer... eventually it will hit set temperature.

For example, 10+10+12 for system 3 more than enough.
Another configuration like , 10+12+18 system 3, not turn on full, maybe just like 18+13 or 10 single room.
There is pointless to get system 4.
Unless you have limitation of aircon ledge, allow to install single condenser unit. Bo Bian , get system 4 instead

 

[mark lim]

For example, 10+10+12 for system 3 more than enough.
Another configuration like , 10+12+18 system 3, not turn on full, maybe just like 18+13 or 10 single room.
There is pointless to get system 4.
Unless you have limitation of aircon ledge, allow to install single condenser unit. Bo Bian , get system 4 instead

for example 10+10+24 does not exist for 3H28, but exist for 4H33.

for daikin 75 vs 85, the output capacity per configuration is very different unlike starmex 3H28 vs 4H33. go see the catalog

 

[petetherock]

Also because after consulting another sales manager they said MKM75VVMG is sufficient. No need to topup more. But if i want cooler get MKM85VVMG

Congrats you managed to convince yourself and get the answer you wanted all along
Like 90.5 - only hear the good stuff

 

[obichacha]

for example 10+10+24 does not exist for 3H28, but exist for 4H33.

Ya , 24k only go for system 4.
System 3 does not support , gas pipe size are required up size from system 3.