It was all included in part of the renovation for removing 5 and installing 6 AC with some new pipes laid or relaid.

This post has been edited by halcyon27: Mar 19 2017, 06:46 PM

It's reliable brand. But perhaps 7-10 years or more should be expected if regularly cleaned and your area is free from lightning transients or voltage dip. (The last one is a sure killer of electric fans with PCB board. Areas prone to this better to rely on regulator.)

Also ensure your pipe is leak free. My old Daikin have active compressor protection that shuts off the AC....kena that once and that made me go for reliable AC piping brands. I would suggest to change the piping to be able to use the R410A gas that replaces the phased out R22.

This post has been edited by halcyon27: Mar 20 2017, 01:27 PM

AC compressor must install with proper clearance from wall or relative to one another. Too close to either shortens pcb lifespan. Kimchi ones more sensitive so a more generous clearance is required. That's what the experienced installers told me and they showed it in the installation manual. Most often is humidity, lightning transient and voltage dip that kills the pcb. Hence the newer generation ones for some make and models are equipped with a wider voltage operation range. I used to use those power factor regulators when staying in landed so most times my compressors are ok.

This post has been edited by halcyon27: Mar 21 2017, 08:41 AM

Gradual 1°C increase in temperature every preset interval until turned off or constant temp e.g. 28°C. Depends on make and model.

Sharp and Samsung turns off after n hours which you can set. Others have to see. Daikin introduced this in their R22-inverter.
Hitachi 2015 calls it Good sleep. Most 2010 models gradually includes it. Others like Toshiba could be earlier as 2005.

Even if don't have, it can be emulated like I describe some posts back.

Unless you can explicitly get a response from Panasonic if their inverter has clean mode which cleans the blower after operation to prevent mould build-up, go for the other two brands.

For Mitsu Heavy Industries, if your room is neither square nor rectangular and placement of AC pipe can be such that you want to reach all parts of the room at the same time, go with SRK10YL-S which has 3 motors for independent left and right in addition to up down. The SRK10YN-S doesn't have this feature (auto 3D) that the YL-S model have.

This post has been edited by halcyon27: Mar 24 2017, 08:37 AM

Jintex electronics.

There's a difference in price. I would prefer Sharp then MHI. MHI only if the type of room shape I mentioned above.

For indoor health purposes, auto clean is a must after air purifying. Mould is undesirable and they are the main culprit in residential sick building syndrome related to poor AC maintenance.

This post has been edited by halcyon27: Mar 24 2017, 04:00 PM

Multi unit compressors are also available from Daikin way back on their R22 units. Takes ceiling, floor, split but not sure about AHU. More popular in SG esp in space constrained AC ledges for locating the compressors. Can power 2 to 3-and possibly 4 depending on aggregate HP. One step down from VRV. I don't know about the power requirement though...could it be multiple power points converging or 3 phase, etc.

This post has been edited by halcyon27: Jul 7 2017, 09:53 AM

Pushing a brand sometimes motivated by commission or favor. Not wrong. Ask friends, relatives, neighbours (good way to know them and strike conversation), colleagues opinion and ask for model they use. Sometimes noise level are published as part of technical spec.

This post has been edited by halcyon27: Jul 7 2017, 05:34 PM

These referring to York's model equivalent? Even those are ok.
If they refer to high fan mode noisy, all are like that. Use only set temp and compare.

In my old condo, bedroom no fan point. Relied on then Thai made Daikin R22 inverter. Set to 26°C. Very quiet at set temperature which it maintained. I hear traffic from outside my window than my AC (rated 26dB). That AC has sleep mode and compressor quiet mode. Slept right under AC.

That AC has five fan levels and fan only (air circulation) mode. Only thing is not equipped is anti mould cleaning after use which the newer R410 gas inverters have.

Btw, all AC compressors are noisy outdoors. None below 44dB as far as I've surveyed. That's quieter than many washing machine if putting things in perspective.

This post has been edited by halcyon27: Jul 7 2017, 06:58 PM

Yes, eleven years ago but sold with the condo but used its 2.0HP Thai R22 F???50GVM, a newer generation sibling in another place after that. Sold that place and moved to a condo now using Samsung Triangle inverter and Sharp Inverter. Both have clean mode with ionizer.

Wow, good to know and thanks for sharing that tip.

And lastly, sometimes noisy could be attributed to vibration. Vibration dampening pads could help also. If possible if you've not installed or laid pipes, use Inaba Denko's Paircoil. These are individual insulation sleeved copper pipes that are very durable as long as installed rightly. High quality copper. That very likely will eliminate vibration due to pipes knocking about in their embedded space inside the wall. Individual sleeve combining both gas and liquid pipe will experience knocking against each other in addition to mixing hot and cold refrigerants. This can cause the compressor to work harder in coolong and damage the cooling fins in the indoor unit where you see ice forming and causing the fins tip bend with tak tak sound. Individually sleeved jacket causes the AC to run at its rated power.

This post has been edited by halcyon27: Jul 7 2017, 11:59 PM

They are found in many AC / refrigeration specialist (not the regular electrical appliance) at least from PJ. Usually Superlon is widely available but that's roll on or slip in which is still very loose fit. Try Allco Parts in Kelana Jaya. There's a Korean one same trade name made by Smartco. Get the one meant for inverter or R410a.

This post has been edited by halcyon27: Jul 9 2017, 09:04 AM

Hitachi also except when put to silence mode. Even at auto, it's just as noisy even when reached set temperature.

AC pipe will sweat (condensation of moisture in the air) and naturally the drain is there to conduct the condensate away otherwise the room will flood. Hence drain always positioned lower than pipe due to gravity affecting where condensate flows: downwards.

Why cannot hack? If AC pipe too low vs drain, solution is to hack where the drain pipe is and position it lower than AC pipes. What's the constraint?

Servicing proportional to usage...if your model has no clean mode, simulate it and set timer to auto off after certain time if yours is 24hr clock.

Are you in Klang valley? You may look for the aircon installation thread to compare. See this,this and this.

There's a ledge above the porch area....suggest using that to place all 3 compressors for ease of maintenance. Vertical height limit for 1.0/1.5hp no greater than 5-10m depending on model. That way there's no need to use L bracket but they have to use ground mounting blocks (proper term is risers) with dampening pads to prevent excessive vibration and prevent it from sitting directly on porch roof.

This post has been edited by halcyon27: Jul 20 2017, 05:17 PM

So long as the pipes are insulated as it sweats (cold condensation).

All compressors have pumps. Question is how much are their vertical limit spec and the pipe run length which in turn depends on the model. This was discussed before in an older AC thread in this post.

The main thing is how much work is required for maintenance. If it's all the way up there, ensure there is a tap which you can close from inside for rinsing. The other associated remote risk is exposure to lighting strike.

Where I initially suggested is ideal albeit the obvious eye sore for ease of reach during maintenance.

This post has been edited by halcyon27: Jul 21 2017, 08:22 AM

11' height minimum with clearance for pipes and drain if there's plaster ceiling.

Any inverter will do. Sharp plasmacluster have 30% discount in Aeon Jusco for their 2015 model.

It's Malaysian. Like Acson and then York before Daikin bought her over.