How to select the best location for install split unit air-conditioner?

23/07/2011 by 11 Comments

When we plan to install air-conditioner unit in our home or resident,the first thing we must sizing the air-condition ( Horse power ) suitable with our space need and the air-conditioner types such split unit types.

For split unit types,it have a several design for our choice likes Wall type,Ceiling enclosed types,Ceiling exposes,Cassette type and Duct types.This types is deference design to suit with our application and room size.

This time i want share some tips how to select the best location for split unit type air-conditioner.It important to ensure our installation perfect and the system can operated in full cooling capacity. read more

Filed Under: HVAC Tagged With: , , , , , , ,

Vacuum method for air-conditioner

23/04/2011 by 14 Comments

When install new air-conditioner or replaced new compressor or change new expansion valve,we need to evacuation or vacuum process.This is important to ensure no air inside the piping system.For easy understanding,this process is to vacuum the system to take out the air and moisture.

If air remain in the air-conditioner and refrigerant piping,it will affect the compressor performance,reduce the cooling capacity,clogged the cycle of refrigerant and could lead a malfunction.

This procedure very important to make sure air-conditioner running properly and can use for long period without breakdown.All maintenance person or electrical technician must know how to perform evacuation procedure. read more

Filed Under: HVAC Tagged With: , , , , , , , , , ,

Air-conditioner services

20/04/2011 by 2 Comments

To ensure our air-conditioner running in good condition, we must perform periodical services at least  every 6 months.Why we must care and cleaning our air-conditioner?

The main cause when our air-condition have a low performance came from dust filter is dirty,it will cause a low cooling capacity,increase electricity cost,unpleasant smell and purified air to our room.

The unit will become to dirty and the cooling capacity decrease after being used in several seasons.So we need to perform cleaning regularly to ensure it in good condition.It very easy to do it your self.

This time i share the simple method for cleaning our split unit air-conditioner.Please switch off the power supply before perform cleaning task to avoid electric shock. read more

Filed Under: HVAC Tagged With: , , , , , , ,

Air-conditioner sizing

17/04/2011 by 13 Comments

Air-conditioner is one of equipment that used and  popular in around the world to cooling our room,office or any space.Now in our market,air-conditioner have in many types and sizes.It depend on our application and types of space that we want use it.

When install an air-conditioner,we want it running in more efficiency and enough capacity can cooling the room.So we must install the right size for our room to ensure it suitable with room size and our application.

If we choose a smaller size for air-conditioner,it will running all the times to cooling the room.Your electricity bills will increase.But if you choose too big,it can kill you also with high electricity cost.So we need to choose a right size for air-conditioner. read more

Filed Under: HVAC Tagged With: , , , , , , , ,

Single phase compressor for air-condition

17/03/2011 by 23 Comments

In air-condition system,compressor is a main component to pump the refrigerant circulation in system.It like our heart to pump a blood all around human system.If this part breakdown or have a problem,all system is paralyze.

Normally for single phase air-condition system,the common type of electric motor is running capacitor motor and used scroll type compressor.The famous brand now in market such as Copeland,Daikin,Toshiba,Mitsubishi and others brands.

I want explain about single phase motor for air-condition or refrigerator compressor basic concept and how to check their winding condition and connection. read more

Filed Under: HVAC Tagged With: , , , , , , ,

Split type troubleshooting part 1

19/02/2011 by 33 Comments

Air-condition split unit type is a very common used around the world for cooling the houses,clinic,restaurant,bank and office.It very popular because the price is not high and average people capable to owned it.Also it easy to install and have a long life span if we follow their periodical maintenance.

This time i want share the techniques for troubleshooting a split unit type.I discuss the common symptoms and what you action to rectify the problem.I hope it can help and make your troubleshooting  jobs more easy and not waste so many valuable time.Below is my table about split unit type air-condition symptom,cause and what action u need to solve the problem.

Read more

Filed Under: HVAC Tagged With: , , , , , ,

How to charge air-condition refrigerant R22 ?

16/09/2010 by 6 Comments

Charging refrigerant for Air-Condition

This time i`m show in my video,How to charge or refill air-condition refrigerant R22.

The tools you must have :-

  • Manifold gauge
  • R22 Gas
  • Adjustable wrench

Please watch my video.It very easy to do it our self.The important thing is SAFETY FIRST.Please wear your safety glass or related PPE.

If any question,feel free to comment :D

Filed Under: HVAC Tagged With: , , , , , , , , , , , , , ,