Frequently Asked Questions (FAQ)

General


What are the factors that need to consider when determine the best location and
installation system for air conditioner?

What is E.E.R.?

What is S.E.E.R?

What is C.O.P?

What is H.S.P.F?

What is BTU?

What is air-conditioning?

What are the factors to select an air-conditioner?

What is a compressor?

What is fan?

What is cooling air conditioner & heat pump?

What is sound?

What is sound pressure level / sound power level?

Product

What are the products available?

How many types of Wall-Mounted Single Split unit do you offer?

What is Multi Split System?

How many types of Ceiling Convertible Single Split unit do you offer?

What is an Inverter air conditioner? Is it more efficient than non-Inverter
conventional air conditioner?

What is NIM?

What type of refrigerant that is being used in your air conditioner unit?

Troubleshooting


Why is the air conditioner not cold or not warm?

Do I have to change the filters? How often does this need to be done?

The air conditioner cannot discharge cool air instantly.

Do I need to service the condensing unit?

The amount of drained water is large.

The unit does not start.

The battery control light is dim.

Why there is condensation on the front panel?

Question:

What are the factors that need to consider when determine the best location and installation system for air conditioner?

 

Answer:

The factors to be considered are:-
· Enough space to allow for sufficient airflow for indoor and outdoor units.
· Enough space for maintenance and servicing.
· Units should be installed on a level location
· Discharged air should not disturb others noise or vibration
· Appearance

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Question:

What is E.E.R.?

 

Answer:

E.E.R. stands for Energy Efficiency Ratio. An air conditioner with higher E.E.R. saves more energy and is more efficient. E.E.R. is a ratio calculated by dividing the cooling capacity in Btu/h [W] by the power input in Watts [W] at any given set of rating conditions, expressed in Btu/hr/W [W/W].

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Question:
What is S.E.E.R?

Answer:

S.E.E.R stands for Seasonal Energy Efficiency Ratio. It measures how efficiently a residential central cooling system (air conditioner or heat pump) will operate over an entire cooling season, as opposed to a single outdoor temperature. As with E.E.R., a higher S.E.E.R. reflects a more efficient cooling system.

S.E.E.R is calculated based on the total amount of cooling (in Btu) the system will provide over the entire season divided by the total number of watt-hours it will consume.

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Question:

What is C.O.P?

 

Answer:

C.O.P stands for Coefficient of Performance. It is the measurement of how efficient a heating or cooling system (particularly a heat pump in its heating mode) will operate at a single outdoor temperature condition. An air conditioner with higher C.O.P saves more energy and is more efficient. C.O.P is a ratio of the heating capacity in Watt [W] to the effective power input of the equipment in Watts [W] at any given set of rating condition, expressed in W/W. the formula is stated:

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Question:

What is H.S.P.F?

Answer:

H.S.P.F stands for Heating Seasonal Performance Factor. It is the measurement of how efficiently all residential and some commercial heat pumps will operate in their heating mode over an entire normal heating season. The higher the H.S.P.F, the more efficient the system. H.S.P.F is determined by dividing the total number of Btu of heat produced over the heating season by the total number of watt-hours of electricity that is required to produce that heat. The formula is:

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Question:

What is a B.T.U.?

 

Answer:

Air conditioner sizes (or capacities) are rated in BTUs per hour. The abbreviation BTU stands for British Thermal Unit. It measures the quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at sea level. BTUs are the primary measurement used to match your cooling needs with an air conditioner.

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Question:

What is air-conditioning?

 

Answer:

Air conditioning is the control of temperature, humidity, air movement, and the quality of air in a room. Basically, we need air conditioned space is to maintain the indoor conditions in comfortable manner and control or improve the conditions of an industrial process so that its quality of the products is enhanced.

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Question:

What are the factors to select an air-conditioner?

 

Answer:


a. Capacity

This factor is most obvious to select an air-conditioners based on the size of room or any space to determine the essential capacity of AC. However, determining of capacity should be involved the heat load estimation of the room as well. For example, the consideration of heat lose through the wall, door and window, heat generated by equipments and humans, etc.

b. Efficiency

The efficiency of an AC directly affects the operating cost of an air conditioning system. The way to calculate the efficiency is based on EER (Energy Efficiency Relative) which is the ratio of rated capacity output and rated power input. The figure reflects the total capacity of cooling/heating that we can get out from an AC system per unit power that we input to it.

c. Reliability

Air conditioner is required to do maintenance after installed, in other words, an unreliable air
conditioner will incur more cost after sales service.

d. Comfort

The system must be able to control the basic factors of comfort like temperature, humidity and air
motion within an acceptable range. For overall, the comfortable temperature ranges from 20 °C to 26 °C.

e. Cost

The Total Cost of application of Air Conditioning is important because it is direct affected the reliability of the unit and also the quality of the products that we wish to select.

f. Aesthetics

The factor is important when the coverage area is somewhere open to the public like Hotel, Restaurant and Shopping Complexes.

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Question:

What is a compressor?

 

Answer:

The compressor squeezes the air that enters it into smaller areas, resulting in an increase in the air pressure. This results in an increase in the energy potential of the air.

The Compressor is the most important piece of a heating or cooling system, which located in the outdoor unit, the compressor is responsible for pumping refrigerant throughout the system. The compressor is often called "the heart of the system" because it pumps the refrigerant from the indoor evaporator to the outdoor condenser and back to the evaporator again.

Refrigerant Circuit Diagram

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Question:
What is fan?

Answer:

A fan is a gas flow-producing machine, which converts mechanical rotating energy to gas or fluid energy. There are mainly two types of fan: centrifugal fans and axial fan. Centrifugal fan has flow within the wheel that is radial to the shaft while the axial fan has flow within the wheel that is substantially parallel to the shaft.

 

Example of fan

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Question:
What is cooling air conditioner & heat pump?
Answer:

For a basic cooling air-conditioner, its purpose is to supply the cool air to the room. In the particular refrigeration circuit, refrigerants circulate in the equipment repeating the processes of compression, condensation, expansion and evaporation and back to compression in order to remove the warm air inside the room to the outdoor.

Meanwhile, The Heat Pump supplies the heated air to the indoor through the opposite cycle from the refrigerant device by using a four way valve to reverse the flow of the refrigerants. In the reversed cycle, the condensation process takes place in indoor and evaporation takes place in outdoor.

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Question:
What is sound?

Answer:

Sound is the sensation resulting from stimulation of the auditory mechanism by air waves or vibrations that can be detected by the human ear. The response of the human ear to audible sound depends both on the sound frequency (measured in Hertz, Hz) and the sound pressure, measured in decibels (dB). Audible sound for fit, healthy young people is from 20Hz-20,000Hz, with maximum sensitivity at around 3,000Hz. As we age it is normal to detect sounds in the middle or speech frequencies. Frequencies below 20Hz are called 'infrasound' and those above 20,000Hz 'ultrasound'. The numerical magnitude of a sound is normally expressed as the sound pressure level in logarithmic decibel units (dB).

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Question:

What is sound pressure level / sound power level?

 

Answer:

Sound pressure level is variation of the pressure in one given point. It depends on the environment acoustic conditions and the distance from the source.

Sound power level is the acoustic energy given by the source. It is independent of the acoustic conditions and the distance from the source.

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Question:

What are the products available?

 

Answer:

Our products are divided into two categories:

1. Air Cooled Product Series
· Wall Mounted System (Single and Multi Split)
· Single Split Inverter System
· Multi Split Inverter System
· Ceiling Cassette
· Ceiling Convertible
· Ceiling Concealed
· Ducted Split
· Rooftop Package
· Horizontal Ducted Condensing Unit

2. Chilled Water System
· Smart Manager
· Air Cooled Mini Chiller
· Tandem Compressor Air Cooled Mini Chiller
· Chilled Water Fan Coil Units

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Question:
How many types of Wall-Mounted Single Split unit do you offer?
Answer:

We offer three models of Wall-Mounted Single Split unit:-
- Negative Ion Series
· The Ion Generator releases negative ion shower to create a refreshing and clean environment as if you are fallen into the world of nature.

Non-Thermal Plasma Air Sterilizer Series
· Non-Thermal Plasma Air Sterilizer neutralize a wide range of odors into harmless substances.

O2 Therapy Series
· A specially designed oxygen enrichment membrane module increases O2 in the air giving you a fresh living environment in your house or office.

Each type of model comes with compact, sleek and modern aesthetic design and provides clean and healthy indoor environment.

Wall Mounted Split G-Series

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Question:

What is Multi Split System?

 

Answer:

Multi Split System enables you to connect two or more indoor units with only one outdoor unit. This will effectively improved the floor space utilization and this models are specially popular in the apartment and condominium.

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Question:

How many types of Ceiling Convertible Single Split unit do you offer?

 

Answer:

We offer two models of Ceiling Convertible Single Split unit:

Negative Ion Series
The Ion Generator releases negative ion shower to create a refreshing and clean
environment as if you are fallen into the world of nature.


Non-Thermal Plasma Air Sterilizer Series
Non-Thermal Plasma Air Sterilizer neutralize a wide range of odors into harmless
substances.

Each type of model comes with compact, sleek and modern aesthetic design and provides clean and healthy indoor environment. This unit is uniquely designed with the option either to install below the ceiling or mounted at low wall position to suit any interior design requirement.

Below ceiling installation

Floor mounted installation

Moreover, it also provides an option to have fresh air intake to further enhance better air ventilation.

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Question:

What is an Inverter air conditioner? Is it more efficient than non-Inverter conventional air conditioner? What are the Inverter products that are available?

 

Answer:

Inverter type air conditioner has frequency changer, which can change the electrical frequency to control the speed of the compressor. This in turn, can control the capacity accordingly.

Conventional air conditioners control temperature by switching the compressor on and off. Whereas Inverter air conditioners control the rotation speed of compressor smoothly to maintain room temperature.
Therefore, it eliminates waste with precise control. In this way, it is more energy saving.

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Question:

What is NIM?

 

Answer:

Network Interface Module (NIM) is a networking system which enable communication among our air-conditioner’s controllers. It utilizes master-slave type system whereby the master node will issues commands to each of the slave nodes. It supports up to 256 air conditioning units in a single bus.

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Question:

What type of refrigerant that is being used in your air conditioner unit?

 

Answer:

We offer three types of refrigerants namely R22, R407C and R410A.

R407C and R410A are Ozone Friendly refrigerant with Zero Ozone Depletion Potential.

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Question:

Why is the air conditioner not cold or not warm?


Answer:

Please check the following:-
· The selection of the operating mode could be incorrect. Make sure to select the correct operating mode.
· There is insufficient refrigerant
· The room is too big, the air conditioner will not be able to cool it to the desired temperature.
· Poor distribution of air to the entire room due to poor location of air conditioner and blockage of the air discharge by furniture
· Windows or doors might be open. Close the windows and doors.
· The air filters may be clogged with dust or contaminated with foreign substances. Clean the filters.

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Question:

Do I have to change the filters? How often does this need to be done?

 

Answer:

Air filters fitted to indoor units should be regularly inspected and cleaned. Initially check every 2 weeks, until some idea is gained as to how quickly dust is building-up. At the very least, air filters should be cleaned every month. Some indoor units are fitted with Air Purifying Filters, which are smaller filter and are not washable. Individual instructions supplied with each unit should be carefully followed.

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Question:

The air conditioner cannot discharge cool air instantly.

 

Answer:

Whenever you turn ON/OFF the air conditioner frequently, you may encounter these conditions:
· Compressor operation is delayed for 3 minutes. This is to balance the pressure of each cycle to protect the compressor from damage.

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Question:

Do I need to service the condensing unit?

 

Answer:

You need to clean the condensing unit at least once a month to remove dirt, which are clog between fins.
You also need to check and remove obstacles that hinder airflow in and out of condensing unit. This will make sure the air circulation of the unit is not blocked. It can affect the cooling efficiency, a shorter compressor life and even your electrical bill.

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Question:

The amount of drained water is large.

 

Answer:

The amount of drained water varies depending on room temperature and humidity. A large amount of drained water does not denote a malfunction.

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Question:

The unit does not start.

 

Answer:

Please check the following:-
· Power failure or need to replace the fuse
· The power plug is disconnected
· It is possible that your delay timer has been set incorrectly

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Question:

The battery control light is dim.

 

Answer:

This may due to:-
· Low battery power, replace with new batteries.
· Batteries are incorrectly inserted or misplaced, reinsert the batteries correctly.

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Question:

Why there is condensation on the front panel?

 

Answer:

This is due to air humidity after long time operation or the set temperature is too low, increase the
temperature and change it to high fan.

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