5.0                 Appendices

 

Appendix A – Sample Survey Questionnaire

 

 

We are conducting a survey on your preferences in the air-conditioners for your home.Please spare a little time to complete this survey form.

Thank you.

 

 

1. No. of  rooms in your  house?[Please tick one]

 

cd--2-rooms                                    cd--3-rooms

cd--4-rooms                                    cd--5-rooms

 

If others, please specify________________

 

2. What are the factors that are important to you in the selection of an air conditioner.

            Please RANK your choice. From ‘most important’ [1] to ‘not important’ [7], and

               write it in this  cd.

 

cd--Quietness of the machine.

cd--Cost of purchase.

cd--Cost of maintenance.

cd--Easy to installation.

cd--Energy saving.

cd--Features of  air conditioner.

cd--Design.

 

3. How much are you willing to pay for the air conditioner?

      [Please tick one]

 

            cd--S$2,500 to S$3,500         cd--S$3,501 to S$4,500

            cd--S$4,501 to S$5,500         cd--S$5,501 and above.

 

4. Is it important that you should have an air conditioner that is easy to install with no extensive drilling or hacking?

 

cd--Yes                cd--No   

5. Simple to maintain. (You can tick more the one choice.)

 

cd--Air-con with anti-corrosion.

cd--Change of filter by user.

cd--After sales service, maintenance and repairs.

cd--Retrofit routine service on equipment.

 

6. Special feature of the air conditioner that you think it must have.  (You can have multiple choice.)

 

cd--Preset temperature for different use.

cd--5 stage fan control.

cd--Automatic switch off after 10 hours.

cd--Able to control by comunication device.

           (hand phone, internet)

cd--Big screen LCD wireless remote controller.

cd--Self diagnosis system.

cd--Healthy dehumidification.(excess humidity with 

           overcooling the air.

7. Design of the air conditioner.With compact design, good looking with designer colour range. Select from a palette of cool pastel or strong designer colours to match your home.

 

cd--Colour of the system.

cd--Compactness in size.

cd--Aesthetically pleasing.

 

Thank you

 

 

Appendix B – Collated Results of User Survey

 

1. No. of  rooms in your  house?[Please tick one]

 

c2d--2-rooms                                  c8d--3-rooms

c8d--4-rooms                                  c1d--5-rooms

 

If others, please specify__6 rooms [1]__

 

2. What are the factors that are important to you in the selection of an air conditioner.

            Please RANK your choice. From ‘most important’ [1] to ‘not important’ [7], and

               write it in this  cd.

 

c  89d--Quietness of the machine.

c  57d--Cost of purchase.

c  72d--Cost of maintenance.

c106d--Easy to installation.

c  47d--Energy saving.

c  84d--Features of  air conditioner.

c105d--Design.

 

3. How much are you willing to pay for the air conditioner?

      [Please tick one]

 

            c12d--S$2,500 to S$3,500         c  7d--S$3,501 to S$4,500

            c  1d--S$4,501 to S$5,500         cnild--S$5,501 and above.

 

4. Is it important that you should have an air conditioner that is easy to install with no extensive drilling or hacking?

 

c16d--Yes                c  4d--No 

 

5. Simple to maintain. (You can tick more the one choice.)

 

c12d--Air-con with anti-corrosion.

c13d--Change of filter by user.

c11d--After sales service, maintenance and repairs.

c  8d--Retrofit routine service on equipment.

 

6. Special feature of the air conditioner that you think it must have.  (You can have multiple choice.)

 

c13d--Preset temperature for different use.

c  7d--5 stage fan control.

c  8d--Automatic switch off after 10 hours.

c  8d--Able to control by comunication device.

               (hand phone, internet)

c10d--Big screen LCD wireless remote controller.

c13d--Self diagnosis system.

c16d--Healthy dehumidification.(excess humidity with 

               overcooling the air.

7. Design of the air conditioner.With compact design, good looking with designer colour range. Select from a palette of cool pastel or strong designer colours to match your home.

 

c  8d--Colour of the system.

c13d--Compactness in size.

c11d--Aesthetically pleasing.

 

 

Appendix C- Techical Term and Use of Air Conditioner

 

Energy Efficiency Rating
Energy Efficiency Rating (EER) is used to measure the efficiency of an air conditioner. This is a ratio of the cooling output (in BTU) to the power consumption (in watt hours), meaning that, the higher the rating, the higher the efficiency of a unit.

 

How many different types of air conditioners are there?
Currently, there are three major types of air-conditioner
 
A Window Unit:
This is a self-contained packaged air-conditioner where all the components are housed within the unit. It is installed through an opening in the wall and no inter-piping connections are required.
 
A Split Unit:
This unit comprises of two parts – the outdoor Condensing Unit (CDU) and the indoor Fan Coil Unit (FCU). The CDU consists of a compressor and a heat rejecting condenser coil while the FCU works as a cooling coil. Interconnecting piping between CDU and FCU is required to run this system.
 
Centralized Multi System:
The centralized multi system requires only one outdoor unit. The outdoor unit will simultaneously cool multiple units of indoor units. Generally, the outdoor unit is either an inverter driven direct expansion system (i.VRS, IES) or liquid chilled water system.

 

What are the basic functions of an air conditioner?
The basic functions of an air conditioner include cooling, filtering and dehumidifying the air. In cold climate countries, an air conditioner provides heating as well.

 

How does an air conditioner work?
The indoor unit absorbs the excessive heat from the room and the outdoor unit rejects the heat to the atmosphere outside the room. The heat is transferred from the indoor unit to the outdoor unit via a medium called the refrigerant. The compressor serves as a pump to the system. It keeps the refrigerant circulated in the system by drawing the refrigerant from the indoor unit and discharging it to the outdoor condenser coil.