- Nov 1, 2008
- Reaction score
Would like to have some sound advice. I am looking for a 4 system aircon. I was quoted the following from GC.
Mitsubishi Heavy Industries / 4-Systems / 30,000 BTU - $4229
Upgrade fan coil piping (insulator + copper piping) -$240
Extended warranty (1 + 4 yrs) - $499
Question 1: Is the fan coil piping upgrade necessary? The upgrade involve changing the insulator thickness from the standard 10mm to 13mm as well as copper pipe from the standard G23 to G22. Any problem with using the standard sizes?
Question 2: According to the salesman, the extended warranty will cover the main board replacement. Without it, it costs $800+ to replace the main board if it does get faulty. Anyone has their main board fried?
Copper gas pipes is necessary for upgrade, if you upgrade also fine, in future can be re-used again.
Wires should used pure copper wires too, did you check with them? or upgrade into 4 core wire.
PVC outlet pipe also need insulated did they provide for you?
Size like 20mm as a standard.
Such as good insulation like armaflex can be last longer without condensation issue, if upgrade also fine too.
Electronic parts were depend on luck!