HWZ Forums

Login Register FAQ Mark Forums Read

Air conditioning - Any recommendations please??

Like Tree884Likes
Closed Thread
 
LinkBack Thread Tools
Old 31-07-2009, 04:37 PM   #661
Master Member
 
Join Date: Nov 2008
Posts: 3,104
yeah...can use back. as long as there is no leak problem on yr old aircon n the new one must be using the same gas as new one. (eg. if yr old one is using R410A, than can change to R22 or R410A. but if its R22, than u can only change to R22 one)
yes... but if you started using R22 gas on an old pipe that previously uses R410a, then it's best that you stick to R22 gas for these pipe from now on.
thesingingbard is offline  
Old 01-08-2009, 12:52 PM   #662
Member
 
snoopysnoozy's Avatar
 
Join Date: Oct 2007
Posts: 114
WOW... Thanks chunlianghere and thesingingbird, for your advice. Din know there's so much things to take note of in air-cons,
snoopysnoozy is offline  
Old 01-08-2009, 01:13 PM   #663
Arch-Supremacy Member
 
mikezuper's Avatar
 
Join Date: Apr 2002
Posts: 15,749
Yeah man - kudos to chunlianghere, thesingingbird and rest of guys who actively giving advice in this thread
mikezuper is offline  
Old 02-08-2009, 06:03 PM   #664
Junior Member
 
fate_xin's Avatar
 
Join Date: Dec 2007
Posts: 34
Thanks for the info!
Courst - Panasonic CU3C2OJKZ/CS $2099, + free 5 yrs warranty + 2 yrs installation warranty.
$100 NTUC vouchers = used to offset the $100 dismantling fee (GC does not charge as they take back the old aircon for trade-in).
oh..not bad..
fate_xin is offline  
Old 03-08-2009, 03:37 PM   #665
Master Member
 
sunht's Avatar
 
Join Date: Jan 2000
Posts: 2,546
Finally went through all the post here. Learned a lot.

my current air con is Fujisu 3system (should be non-inverter) from my previous owner. Assume the ex-owner installed it on the 1st, then it has beeb used about 7 years.

I want to change to a new system3, the usage is not that high. only few hours at night (for master room and computer room), the other unit will not use unless there is guest. So to me, i think non-inverter is more than enough. But i have some questions about the installation if i want to change to new air-con.

1. Currently all my pipe are inside the white plastic cover (i don’t know what is that called), and that is exposed on the wall.

2. in my master room, part of the piping is behind the built-in wardrobe. So if i change the air-con, but don't want to use back the old pipe, can that be done?

Thanks.
sunht is offline  
Old 03-08-2009, 05:59 PM   #666
Junior Member
 
fate_xin's Avatar
 
Join Date: Dec 2007
Posts: 34
Finally went through all the post here. Learned a lot.

my current air con is Fujisu 3system (should be non-inverter) from my previous owner. Assume the ex-owner installed it on the 1st, then it has beeb used about 7 years.

I want to change to a new system3, the usage is not that high. only few hours at night (for master room and computer room), the other unit will not use unless there is guest. So to me, i think non-inverter is more than enough. But i have some questions about the installation if i want to change to new air-con.

1. Currently all my pipe are inside the white plastic cover (i don’t know what is that called), and that is exposed on the wall.

2. in my master room, part of the piping is behind the built-in wardrobe. So if i change the air-con, but don't want to use back the old pipe, can that be done?

Thanks.
for the part behind the wardrobe , it cant be changed unless u wan to dismantle yr wardrobe which i think is nope... the white plastic cover is call trunking
fate_xin is offline  
Old 05-08-2009, 10:11 AM   #667
Master Member
 
sunht's Avatar
 
Join Date: Jan 2000
Posts: 2,546
for the part behind the wardrobe , it cant be changed unless u wan to dismantle yr wardrobe which i think is nope... the white plastic cover is call trunking
Thanks. That mean either i use back the old pipe or i have to route another way for the new piping? should get the contractor to come down to my house do some site viewing.
sunht is offline  
Old 05-08-2009, 08:05 PM   #668
Junior Member
 
fate_xin's Avatar
 
Join Date: Dec 2007
Posts: 34
Thanks. That mean either i use back the old pipe or i have to route another way for the new piping? should get the contractor to come down to my house do some site viewing.
yup .. best is to get the contractor to do some site survey 1st
fate_xin is offline  
Old 09-08-2009, 06:55 PM   #669
Junior Member
 
Join Date: Feb 2002
Posts: 51
Time to change my 10yo Sanyo sys 3 aircon.... so went down to GC cos got the free extended 5 years warranty. my 1st aircon was installed by GC. Good workmanship.

My requirement was juz to installed in the MBRoom- so i am looking at a System 1 inverter

My selection criteria
1. energy saving as i use it for minimum 12 hrs a day. ME is the most energy saving, follow by M.Heavy Industries follow by Daikin & Panasonic.

2. Self cleaning dryer to prevent mould and fungus growth. (only MHI and Daikin have this feature. Toshiba have this feature too)

3. Horizontal Left/Right airflow control. So i no need to manually use my finger to go adjust the flap to left or right, from the remote control can do it liao. (only MHI have it for system1)

4. Made in where is not impt if you have the free 5 years FULL warranty. Gain City covers all 5 yrs parts, labour for condenser & fancoil, 1 to 1 exchange )


5. Good filter (Most of the brands have 2 filter system except Panasonic. MHI have a 2 type filter, one with Allergen filter and a Sun Filter, something like a dedorizer, and a +Eions coated filter)


Eventually, all my criterias points to Mitsubishi Heavy Industries.

I confirm the MHI one which cost me $$1029 :-

System 1 : $989 (4 ticks inverter)
Extended 5 years warranty : FOC promotion
Upgraded copper pipes to 22AWG : $20 (cos using R410A gas, higher pressure)
Upgraded insulation to 3/8" Armaflex : $20 (should be good enough cos the 1/2" one looks damn thick-overkill, will cost additional $50. The standard rubber one they are giving foc, looks damn thin, i scared condensation)

The condenser and fancoil is made in thailand, but i guess the 5 years full warranty will take care of that.

Only setback is the flaps/lourves cannot be taken out to be washed like the ones from ME. But this is a small issue.

Installation date quick packed.................mine is on the 24th Aug. Have to wait 2 weeks.

Last edited by vsml; 09-08-2009 at 06:59 PM..
vsml is offline  
Old 10-08-2009, 12:11 AM   #670
Supremacy Member
 
Join Date: Nov 2005
Posts: 6,093
Upgraded insulation to 3/8" Armaflex : $20 (should be good enough cos the 1/2" one looks damn thick-overkill, will cost additional $50. The standard rubber one they are giving foc, looks damn thin, i scared condensation)
wait wait!

i thought 3/8" insulation is the default manufacturer thickness? look like giving free $20 to GC? wat is the actual thickness GC give?
chunlianghere is offline  
Old 10-08-2009, 12:53 AM   #671
Junior Member
 
Join Date: Feb 2002
Posts: 51
I upgrade the standard black rubbery type of insulation(can't remember the name, he show me) to the Foam like Armaflex insulation.........that's what the $20 upgrade. I think both are 3/8". If want the 1/2" foam Armaflex, then have to top up $50.

wait wait!

i thought 3/8" insulation is the default manufacturer thickness? look like giving free $20 to GC? wat is the actual thickness GC give?
vsml is offline  
Old 10-08-2009, 02:30 PM   #672
Master Member
 
sunht's Avatar
 
Join Date: Jan 2000
Posts: 2,546
Hi guyes, any comments on Hitachi Air-con. Yesterday went to GC, was recommended Hitachi System 3 inverter. Said it was the quietest (20db). And the compressor Mitsubishi used for system 3 is the same as system4, thus more power consuming compared to Hitachi system 3.

Hitachi System3 Inverter:
RAM 65Q8 + 3x RAK25N5

But it is not so popular in other shops, even not in the forum. Not sure how is it? Any feedback? Thanks

Last edited by sunht; 10-08-2009 at 02:33 PM..
sunht is offline  
Old 10-08-2009, 04:24 PM   #673
Senior Member
 
Join Date: Oct 2004
Posts: 1,867
Hi guyes, any comments on Hitachi Air-con. Yesterday went to GC, was recommended Hitachi System 3 inverter. Said it was the quietest (20db). And the compressor Mitsubishi used for system 3 is the same as system4, thus more power consuming compared to Hitachi system 3.

Hitachi System3 Inverter:
RAM 65Q8 + 3x RAK25N5

But it is not so popular in other shops, even not in the forum. Not sure how is it? Any feedback? Thanks
Mit invertor uses multi speed, so even with the same compressor, energy consumption is not afftected as it is determined by the pcb.
terumo is offline  
Old 10-08-2009, 09:43 PM   #674
Supremacy Member
 
Join Date: Nov 2005
Posts: 6,093
very little ppl wil buy hitachi.. don go for quietest. i believe u stil can slp w/o aircon, wit windows open last time rite?
chunlianghere is offline  
Old 11-08-2009, 09:27 AM   #675
Master Member
 
sunht's Avatar
 
Join Date: Jan 2000
Posts: 2,546
Mit invertor uses multi speed, so even with the same compressor, energy consumption is not afftected as it is determined by the pcb.
Hmm..Not sure whether still can change to Mitsubishi or not? paid already.
sunht 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