Anyone know what is air-con pump?

High pressure does not mean good. R410A need to be operate at higher pressure because of the gas nature. The older R11 & R12 are much more better gas to use in term of efficiency but not environment and the it run same pressure like R22 (If my remember correctly). How efficiency also depend on how the liquid/gas transfer heat.

Just like olden day, the brake pads are so much better, last longer and cheaper when Asbestos are use to made pad, but due to environment and health hazard is ban, and not a good brake pad either need metalic compound or it finish up fast.

Pump = compressor right?

What brand and model?

Due to my condo layout, my air-con guys said each of the air-con need to attach with a small pump,
so the drip water is 'powerful' and route to balcony from master room

after i read through the installation manual i found out my installer didnt do 1 thing... in the manual mention the Liquid and Gas Pipe should be separately insulate , but my installer insulate it together...

T_T

lol... you are slow.. 

since they charge you lower installation fee then to be combine into one.

unless they mention for separate insulation and higher cost coverall with huge trunking. 

i dont mind as long as insulate it well... extra charge is ok..
but its ok right even tho they put both pipe together in one insulator..

any for the compressor to my in-door unit is around 5 feet only...

Due to my condo layout, my air-con guys said each of the air-con need to attach with a small pump,
so the drip water is 'powerful' and route to balcony from master room

Just got to know fr my contractor that York 2.5 vs Panasonic 2.5 requires diff size of copper. York 2.5 requires a bigger copper pipe.

He installed a Pana 2.5 pipe for me. So the max hp i can go for York is 2.0.

Any1 can advise me on the above?

I'm planning to get a York 2.5 instead of 2.0. Or there is not much off cooling diff between 2.0 vs 2.5?

All are basic air cond model.

In term of cooling not much different.
Unless your house got more guest and some corner can't reach to 90% of cooling only.

U r referring between of 2.5 vs 2.0?

Can I know your hall how big of overall size?

I can't said 2hp is good enough, may due to your actual condition, such as direct afternoon sun lah or 2 storey height at living hall.

How I know right.

Yupe u r right. I dont have the measurement with me. But its a terrace double storey.

Not facing direct sun light. Air cond will be shared by living n dining room.

Due to my condo layout, my air-con guys said each of the air-con need to attach with a small pump,
so the drip water is 'powerful' and route to balcony from master room

separate insulate much better to avoid water drip on wall or outside diameter 

Got layout plan?

Please show here, also quote from others installer and see how.

Take note, once the suction pump break down and all food.

my house for living + bedroom all going to toilet. 

Ok to be wait and see how survive on next few yrs of R22 last.