HWZ Forums

Login Register FAQ Mark Forums Read

Air conditioning - Any recommendations please??

Like Tree884Likes
Closed Thread
 
LinkBack Thread Tools
Old 25-12-2016, 10:05 PM   #9046
Senior Member
 
smoothtalker's Avatar
 
Join Date: Dec 2008
Posts: 1,193
any sexpert can share what determines the CU noise? from what i understand is likely due to the compressor design. scroll, rotary, etc. but i can't find those technical details in sale brochure lei.. only marketing crap like BLDC motor. fin blade. all the rubbish.

i.e my recent 2 Korean aircon bloody noisy. starmex, MHI, and old Sanyo much quieter.
smoothtalker is offline  
Old 25-12-2016, 10:56 PM   #9047
Member
 
Join Date: Nov 2016
Posts: 212
any sexpert can share what determines the CU noise? from what i understand is likely due to the compressor design. scroll, rotary, etc. but i can't find those technical details in sale brochure lei.. only marketing crap like BLDC motor. fin blade. all the rubbish.

i.e my recent 2 Korean aircon bloody noisy. starmex, MHI, and old Sanyo much quieter.
Hi,

From my understanding, cu noise can be contributed by a number of factors such as:
1. Air flow path through the cu.
2. Rate of air flow.
3. Type of fan,
Axial,
Centrifugal or
Cross flow.
4. The design of the condenser fins and location.
5. The types of compressor,
Reciprocating.
Scroll.
Screw.
Rotary.
Centrifugal.
6. The design of the cu casing, suspension and mounting.
7. Mounting configuration.

But all the above factors can be "zero" down to one criteria except above point 7, which is the cu noise level in dB. This criteria is provided in all product specification classified as outdoor unit noise level.

The above are my opinion and hope that they are helpful.
dachee is offline  
Old 25-12-2016, 11:15 PM   #9048
Senior Member
 
Join Date: Apr 2005
Posts: 2,003
because of the seating area i guess?

Hi guys, do you think it's possible to install then air con, at the beam the part where the wall is Soild black ? Was told it was not possible by the gain city staff.
rubber33 is offline  
Old 25-12-2016, 11:28 PM   #9049
Member
 
Join Date: Nov 2016
Posts: 212
Hi guys, do you think it's possible to install then air con, at the beam the part where the wall is Soild black ? Was told it was not possible by the gain city staff.
Hi, did they say why on the beam cannot install?
dachee is offline  
Old 26-12-2016, 03:10 AM   #9050
Senior Member
 
Join Date: Oct 2004
Posts: 1,872
9k btu should be sufficient for all your bedrooms.


Oops sorry, I converted to cooling capacity required. Master bedroom is 13.25 m2 while normal bedrooms are 9.85 m2.
terumo is offline  
Old 26-12-2016, 09:14 AM   #9051
Senior Member
 
Join Date: Apr 2006
Posts: 875
Hi,

The StarMEX single split 4 ticks is MSY-GE10VA / MUY-GE10VA. It is not a 5 ticks model. Search the internet, you should be able to come a cross some dealers selling this model combination at less than $1k include installation. Good to invite the installer to view the location of the FCU and condenser as some installation can be very straight forward due to the proximity of these two components.

However, there is a proximity limitation on how close these two components can be. Check the installation spec. and ensure that the installer add addition length of pipes if needed to meet the requirement.

In my opinion, it is always best to change all your pipes and wires when replacing your air conditioner with a new one.

NEVER NEVER accept brazing joint with new pipes. This is because, in Singapore, brazing is done without the use of nitrogen by many irresponsible installers. This leaves impurities in the pipes that are likely to cause components failure and expensive repair in future.

Get more information on this at: https://youtu.be/YcLoLbr3WSE

At times, you may have very irresponsible installer insisting on brazing a joint and in such situation, you have to insist that he do it with nitrogen or other ways without brazing.

As you are paying for new pipes, there should be no reason for the installer to joint the pipes. New pipes (coils) come in length of 15m, which is sufficient for most installation.

It is therefore important that you observe the installer when they insert the pipes into the insulation to check whether they had done any brazing on these pipes ( they do it to safe cost by jointing left over pipes collected from other installation). Once they insert the pipes into the insulation, it is difficult to inspect for brazing joints. So, inform the installer that you wish to inspect the pipes before they insert it into the insulation.

You will be at the losing end if you accept brazing joints. You have your right to insist that they use completely new pipes (coils).

The above are my opinion and hope that they are helpful.
Yes I'll be getting these MSY-GE10VA / MUY-GE10VA. Thought they are changed to two ticks already?

Any recommendations for good installer?
zzzzzz87 is offline  
Old 26-12-2016, 09:28 AM   #9052
Senior Member
 
Join Date: Apr 2005
Posts: 2,003
Hi, did they say why on the beam cannot install?
They said cannot drill hole to hold the bracket to hold the blower and also mentioned about the routing of the cable.
rubber33 is offline  
Old 26-12-2016, 11:15 AM   #9053
Member
 
Join Date: Nov 2016
Posts: 212
They said cannot drill hole to hold the bracket to hold the blower and also mentioned about the routing of the cable.
All pillars and beams (those solid concrete parts of your house that runs vertically and horizontally) are normally not left bare. Wherever they are exposed, they are always covered with a layer of plaster cement.

This plaster cement is about an 3/4 to an inches thick.

The installation plate of the FCU does not required deep fastens as they are normally light about 10kg. The manufacturer's spec. only required 5 pieces of 1 inches screws.

There should not be any reason of not able to mount the FCU on the beam.

However, some of the beam may not have sufficient height to accommodate the FCU and the required gap from the ceiling to the FCU to allow sufficient air to enter it which has a min. of 54mm for some StarMEX models.

To overcome this, a simple cornice box can be created below the beam to allow the FCU to be slightly lower to meet the gap requirement as well as to cover the pipes and wiring.

Running the pipes and wiring on the beam is no different from running it at another location.

You may wish to have more installers view this installation location for their comments. Nevertheless, the installer is the one that need to do the job and if he cannot do it (not that it cannot be done) then, either you get another person to do the job or you bend your need.

The above are my opinion and hope that they are helpful.
dachee is offline  
Old 26-12-2016, 11:23 AM   #9054
Member
 
Join Date: Nov 2016
Posts: 212
Yes I'll be getting these MSY-GE10VA / MUY-GE10VA. Thought they are changed to two ticks already?

Any recommendations for good installer?
Hi,

The spec still indicates that they are 4 ticks.

Sorry, I do not recommend installer. There are many hit and run in this field and your pre-discussion on your requirements is important. Some requirement may need to be written in your order documents to avoid later dispute.

Vigilant over the way the installers go about in their job and doing checking at key points of the installation process is important.

Though you are paying for the job, you would still need to be involved to ensure quality and prevent future costly repair to your system.

There may be some disagreement with the installers at times during the installation process as you insist that they comply to your requirement but never give in. This is where the written agreement comes in.

The above are my opinion and hope that they are helpful.
dachee is offline  
Old 26-12-2016, 12:14 PM   #9055
Senior Member
 
Join Date: Apr 2005
Posts: 2,003
Thanks dachee for being generously sharing the knowledge.
rubber33 is offline  
Old 26-12-2016, 01:34 PM   #9056
Supremacy Member
 
Join Date: Jan 2014
Posts: 5,826
Hi any review on this sys 2 aircon?

Panasonlc lnverter sys2
Air -CON
CSS9PKZW2
Cu2s18pkz
18000btu

And any rewiew on JK aircon specialist?

TIA
goh6570 is offline  
Old 26-12-2016, 02:39 PM   #9057
Master Member
 
Join Date: Nov 2007
Posts: 2,782
Hi any review on this sys 2 aircon?

Panasonlc lnverter sys2
Air -CON
CSS9PKZW2
Cu2s18pkz
18000btu

And any rewiew on JK aircon specialist?

TIA
How much do they quote the price
ksrokiller is offline  
Old 26-12-2016, 05:00 PM   #9058
Junior Member
 
Join Date: Nov 2006
Posts: 45
Hi,

The CTKS is the indoor FCU model number. Do you have your decided condenser outdoor model number? Need to pair them to check compatibility.
I have decided to get either the MKS65QVMG or the MKS80QVMG. Will I be overloading the MKS65QVMG if I turn on 3 units in the future?
bluegum is offline  
Old 26-12-2016, 08:33 PM   #9059
Member
 
kangjihh's Avatar
 
Join Date: Dec 2004
Posts: 485
Do I need to change the power point if I changing to starmex or daikin? Currently using window unit with the 3 pins plug

kangjihh is offline  
Old 26-12-2016, 09:11 PM   #9060
Member
 
Join Date: Nov 2016
Posts: 212
Do I need to change the power point if I changing to starmex or daikin? Currently using window unit with the 3 pins plug
Hi,

If I am not wrong, the window unit air conditioner uses a 15A 3 pin plug, those rounded pins, not rectangle pins.

Though, some split unit air conditioners (lower capacity units) use only 10 A according to their specification, it is normal to have a 20A power point so that there is not mistake of connecting a higher capacity unit to it.

Different amperes power points would need to have different:
1. Overload breaker
2. Wires size
3. Isolator switch

In the event that you use a 15A power point for a 20A load, eg an air conditioner that uses 20A, then you will have frequent tripping of the breaker and also the possibility of your wires overheating.

It is good to do it once and do it right the first time.

The above are my opinion and hope that they are helpful
dachee is offline  
Closed Thread
Important Forum Advisory Note
This forum is moderated by volunteer moderators who will react only to members' feedback on posts. Moderators are not employees or representatives of HWZ. Forum members and moderators are responsible for their own posts.

Please refer to our Terms of Service for more information.


Thread Tools

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On