[terumo]

To Leon,

If ur existing sys uses R22 but u r changing new pipes, no issue to change to R410.

Does ur Panasonic quote includes thicker (1/2) insulation or stainless steel bracket?

[fbap9467]

Hello, need advice. Here is the situation and plan, but not sure if it is sensible

a) Situation
I stay in a condo that comes with the 8 years old a/c non-inverter Daikin and concealed pipes. There are 2 condensers: System 3 to 3 bedrooms, System 2 to dinning. We usually only use the master bedroom (MBR) a/c about 6 hours week night and about 10 hours on weekends.
Recently got U0 error (means low refrigerant) ask Daikin come and check and only top up refrigerant (R22) and refused to check for gas leak. Say must do pressure test ($300) and can only tell if the leak is at condenser or pipe. Still got the U0 error but less frequent (need to reset a/c to start again in the middle of the night, yuck!)

b) Plan
Since only use MBR a/c, considering replacing the System 3 to System 1 (for MBR only) and change to inverter type to save electricity. Also need to change the pipe since the inverter type needs thicker copper and the existing one is possibly leaky.

Now, not sure if it is ok to leave the existing pipe and fancoil to the other bedrooms alone or need to take it out. Is it better to hack out the old pipe to replace with new pipe or run a new trunking? Any risk of changing system 3 to system 1?

Advice or comment is highly appreciated. Thanks!

[Frederick84]

heard from air con installer tat daikin n mitsubishi better.. reason is lesser customer call them for repair lol.. but is it cos lesser ppl buy in the first place thus lesser ppl call for repair ?? lol

[terumo]

To fbap9467,
If u r not using the 2 bedrooms, can leave it as it is and install a new sys 1 with pipings for the master room.

[fbap9467]

terumo wrote:

To fbap9467,
If u r not using the 2 bedrooms, can leave it as it is and install a new sys 1 with pipings for the master room.

Thanks for the reply
Went to courts talk to ac man, looks like my bigger problem is concealed pipe

This guy also talk about ac and dc inverter n say that system 1 inverter or not have little difference in electric bill. Now i am confused

[tekster]

Frederick84 wrote:

heard from air con installer tat daikin n mitsubishi better.. reason is lesser customer call them for repair lol.. but is it cos lesser ppl buy in the first place thus lesser ppl call for repair ?? lol

I guess daikin is better cause they only sell aircon and nothing else. But make sure u hoot the onewith latest gas. Cause the older type will be phased out.

[Frederick84]

tekster wrote:

I guess daikin is better cause they only sell aircon and nothing else. But make sure u hoot the onewith latest gas. Cause the older type will be phased out.

if i not wrong, R410a is the best follow by R407c ??

the old one refer to R22 right ??

[terumo]

Aircon only have r22 n r410 @ e moment.

[toyotatoyope]

Leon wrote:

I got a quote for Panasonic inverter type + 12 BTU+9BTU+9BTU for $3100, including removing old system and install new, + GST. Is this a good price?

He also quote similar setup but Daikin or Mitsubishi Electic but for $200 more. Does these two brand worth the extra $200?

Model CU-3S27KKZ(Panasonic), 3MKD75(Daikin and 3S28(ME)

Also, existing system uses R22. It is ok to switch to R410?

TIA

GC offer Panasonic system3 inverter at $2399 nett included 4years extended warranty for part n labour. Not latest model but 1 model older than current one. Sharing same outdoor unit. It's a good deal. Grab it b4 it's over.

[PC_Dreamer]

Any europace user can share their experiences? Seems like very few here in forum.

[Patricialim]

Some people choose to service their aircon themselves.
Read this article before you consider if you should service your aircon yourself.

Is It Safe To Do DIY Aircon Servicing?

[MoCHARZ]

Anyone has experiences with MHI?
I got directed to MHI while looking for Starmex.
Seems that MHI is more power saving, cheaper and more feature.

[PC_Dreamer]

MoCHARZ wrote:

Anyone has experiences with MHI?
I got directed to MHI while looking for Starmex.
Seems that MHI is more power saving, cheaper and more feature.

I read that MHI's pretty good. But the power saving, according to the salesman, is calculated only via the power consumption of the compressor.

So if you use a weaker compressor, definitely the "annual cost" is lower since /hr is lower.

But using a stronger compressor might also mean that usage i.e. hr lower.

[MoCHARZ]

PC_Dreamer wrote:

I read that MHI's pretty good. But the power saving, according to the salesman, is calculated only via the power consumption of the compressor.

So if you use a weaker compressor, definitely the "annual cost" is lower since /hr is lower.

But using a stronger compressor might also mean that usage i.e. hr lower.

Both power consumption does not differ much, should be still acceptable.
Unless user has used two before to make a comparison.
I am interested in the ionizer function, can turn me into ion man =p

[Ihavegotnosatisfaction]

I just got sys 3 and sys 2 Mitsubishi electric from imperials distributors. New piping all concealed I would say I took almost 3 months to search around to find the best price and workmanship. After they complete thir I m one of their very satisfied customer. There's a guy name Tim very cool and helpful. 92321641 . If get a chance I'll post pics of their work cheers