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  • Should one buy a Split AC or a Window AC?

    A room AC is ideal for rooms up to 200 sq ft where one of the walls is exposed to the outside. In case of budget and space constraints, one could go for a Window AC.

    Though window units are cheaper and easy to install, Split ACs are quieter in operation, more aesthetically appealing and have better air distribution. If there are no exposed walls, a Split AC is the only option. Split ACs have two units - a compressor unit outside and an indoor unit inside. Since the compressor is kept outside, noise levels are lower in a Split AC as compared to the Window AC. However, installing the split units may require some renovation work, which implies a monetary investment.

  • What is the right AC tonnage for my room?

    To know what tonnage of AC to buy, one needs to do a heat load calculation of the room to be air conditioned. Very often, a thumb of rule of 100 sq ft = 1.0 TR is applied to calculate the room AC tonnage. However, this method may not be accurate.

    The size of the windows, location of the walls (west or east facing), floor, number of people expected to occupy the room, other gadgets in the room and lighting, amongst others, all play a role in calculating the right tonnage for the room. It is recommended to request a technician to visit the room and allow him to do a heat load calculation.

    Identifying the right AC tonnage is a critical step, since buying an undersized AC may provide inadequate cooling with perhaps the compressor never cutting off, and buying an oversized one may result in high power bills.

  • How does one know if the AC being considered is energy efficient?

    One should note the star labelling on the AC. The star rating varies from 1 star to 5 star. More the stars, the more energy efficient the AC is, better will be the corresponding savings.

    The star rating is defined by the Bureau of Energy Efficiency guidelines and ACs of all brands are tested and certified by a third party agency for the star-rating.

  • Why does a higher star AC cost more? How to calculate the payback period?

    High energy efficiency design involves increased components in the heat exchange area due to which input costs increase. Hence, a higher star AC, such as a 5 star AC, costs more than a 2 star one.

    To make an informed choice related to energy and monetary benefits in an AC, one needs to calculate the energy and corresponding monetary savings. Payback period in years = incremental higher price/energy saving in a year over a lower star AC.

    Buying a 5 Star AC is a good decision in the long term, especially given the fact that consumers nowadays use their AC for much longer periods and the power tariff is likely to increase over the years.

  • What is an Inverter AC?

    Window and standard split ACs have a compressor that runs at a fixed speed. The compressor is therefore either on or off depending on the set temperature.

    The Inverter AC thinks and adjusts according to your needs. Its compressor has a variable speed and changes its frequency according to the ambient load. As the frequency changes, the speed of the compressor also changes. This eliminates any temperature fluctuations and helps maintain a comfortable temperature. For example, a 1.5 TR Inverter AC can decrease its capacity to 1 TR or increase its capacity to 1.75 TR, as per the requirement. As there is no cut in and cut off, the Inverter AC saves up to 30% more power.

  • What are some other useful points to keep in mind while purchasing an AC?

    One should look out for various types of filters available in an AC, such as a bio filter and a catching filter which traps dust particles, mites as well as eliminates bacteria and viruses. Thus, the air inhaled is pure and healthy.

    Most air conditioning units also have a dehumidifier, which reduces humidity in the air, making it cooler and more comfortable.

    Also, one should check the noise level of the model, which usually ranges from 30-60 decibels.

    The sleep mode of an AC is an intelligent feature as it automatically adjusts the temperature during the night so that its comfortable throughout.

    An auto restart facility to help restore the original setting after a power break.

    Having a timer in the AC enables the users to turn it on or off on schedule.

    A feature called ‘i-feel’ helps in maintaining the set temperature around the person rather than the AC. A sensor on the remote signals the thermostat in the unit, which adjusts the cooling accordingly, making it more comfortable.

  • What is the ideal tonnage of an air conditioner that is suitable for my room size?

    Capacity Coverage Area
    Capacity – 0.75/0.8 Ton Suitable for small sized rooms (up to 100 sq.ft)
    Capacity <= 1.2 Ton Suitable for small sized rooms ( up to 110 sq.ft)
    Capacity 1.3 to 1.7 Ton Suitable for medium sized rooms (111 to 150 sq.ft)
    Capacity >=1.8 Ton Suitable for large sized rooms (151 sq.ft to 200 sq.ft)
  • Can I use perfumes with my AC?

    While perfumes do create a good atmosphere, they should be used cautiously as some people can be allergic to them.

    The best way to keep the foul smell out is to open windows and use fans to bring in a lot of fresh air before the AC is started. Keeping the AC room clean is also equally important.

  • What is the ideal location for installing a Window AC?

    The Window AC should be installed at a height of 5 feet behind the user. The air draft from the AC should not hit the user directly.

  • To what distance will a Window AC or Split AC throw air?

    A normal Window AC or Split AC will throw air up to 15 feet. However, special split units are able to throw air up to 30 feet.

  • Does one need a 3-phase electricity supply to install an AC in the house?

    Window ACs and Split ACs of lower tonnage work on a single phase. However, it is better to have a 3-phase supply, and distribute the other loads like geysers, washing machines, pumps and lights in the other 2 phases.

  • Do I have to necessarily buy a voltage stabiliser when I buy an AC?

    The compressor, which is the most critical component in the AC, works between 190- 240V. With voltages in most parts of India going well below 190V, a voltage stabiliser is recommended for an AC.

  • How can one maximise the AC output in the room?

    Once installed, the AC needs fresh air to work efficiently, so one needs to ensure that the outdoor unit is not blocked. Also, the moisture from the room, collected as water, needs to be drained out properly.

    The outdoor unit should be made of corrosion-resistant galvanised steel.

    Providing curtains/blinds/sun film on windows reduces heat input into the room. Protecting the AC from direct sunlight can boost its efficiency by almost 5%. Also, a false ceiling or insulating the ceiling reduces heat input in the room. The filter should be easily accessible so that it can be removed and cleaned regularly as an unclean filter obstructs optimal cooling as well as increases energy consumption by 10%.

    Ideally, electrical appliances such as the television, lamps should not be placed close to the AC. These appliances generate heat which is sensed by the thermostat, causing an overload on the running of the compressor.

    For every degree less than 24℃, the AC will consume 3-5% more energy. So, the thermostat should be set at a comfortable high temperature, preferably 25℃.

  • How often should the filters be cleaned?

    Filter cleaning depends on the frequency of usage and the atmospheric conditions. For normal applications, it is recommended to clean the filter once every 15 days.

    Also, the AC should be serviced once every 3-4 months for optimal performance and longer life of the machine.

  • What does one pay for AC installation?

    Standard Installation Charges Charges (₹) City Charges (₹) Up-Country
    Site Inspection * 400 500
    Installation / Re-installation - Window AC / Portable AC 650 750
    Dismantling charges - Window AC / Portable AC 475 575
    Installation / Re-installation - Split AC (Fixed Speed / Inverter) 1500 1650
    Dismantling charges - Split AC / Inverter AC 750 900
    Additional Copper Piping provided by customer per RMT (labour only) 200 200
    Nitrogen Flushing / Nitrogen Pressure Testing of already installed Copper Piping 600 600
    Additional Copper Pipe with insulation per RMT 950 950
    Additional Drain Pipe (PVC) 1” Insulated Wire Mesh per RMT 105 105
    4 Core Wire 1.5 sq. mm Interconnecting Cable IDU - ODU per RMT 150 150
    3 Core Wire 2.5 sq. mm for power supply per RMT 125 125
    Supply and installation of ODU Stand 845 845
    Installation of ODU Stand (labour only) 300 300

Hot & Cold

  • How many components will I receive if I order Hot & Cold AC?

    Blue Star Hot & Cold Split AC will include one indoor unit, one outdoor unit, one remote and one user manual.

    The connecting wire & copper kit received will depend on model to model.

    Please check with your Blue Star authorised dealer to understand what components will be received upon ordering a Blue Star Hot & Cold AC.

    Contact your retailer or dealer to find what optional parts are available or place an order for one, if you cannot contact them, contact our service provider in your area.

  • How do I find the model name of my Hot & Cold AC?

    The model name of an AC is shown on a data plate on the indoor unit as well as on outdoor unit. You can also see the same on the warranty certificate on the user manual received along with the machine.

  • Can I leave the doors and windows open while the AC is running in the Heating Mode?

    Keep all doors and windows closed to make the air conditioner work efficiently even in the Heating Mode. This ensures that the warm air stays inside the room to keep the room temperature at a desired level.

  • What is the defrost function?

    When the outdoor ambient temperature is low (0° C or less) and humidity is high, there may be ice formation on the condenser side, which could affect heating performance of the unit.

    The connecting wire & copper kit received will depend on model to model.

    When ice forms on condenser side, the AC stops running and the defrosting cycle kicks in and runs until the condenser side temperature is restored to original temperature desired for heating operation. While defrosting is in progress, the Operation indicator blinks on the indoor unit.

  • Why is the indoor unit not working?

    Please check the following:

    • Is the indoor unit's filter dirty and clogged?
    • Is the AC's intake or outlet side blocked?
    • Did you set the room temperature (thermostat) correctly?
    • Is the window or door left open?
    • Is the ventilation fan inside the room operating?
    • Is the airflow and direction settings appropriate for the room?
  • Why is steam coming out of the condenser side?

    During heating operation, the condenser unit's axial fan may stop running, and steam may come out from the condenser side.

    The steam is caused by the automatic defrosting cycle. Also, small amount of heat may also come out of the condenser side during this cycle. The AC unit is working fine.

  • Why is the air flow from the indoor unit is weak?

    In heating operation initially, the fan speed is low and the airflow from an indoor unit is weak at first. This is to allow internal components of the unit to warm up.

    During heating operation, the unit may stop running for 5 to 15 minutes to allow automatic defrosting. While automatic defrosting is in progress, the indicator blinks on the indoor unit.

  • Why is the AC's heating performance poor?

    Please check the following:

    • Is the indoor unit's filter dirty and clogged?
    • Is the AC's intake or outlet side blocked?
    • Did you set the room temperature (thermostat) correctly?
    • Is the window or door left open?
    • Is the ventilation fan inside the room operating?
    • Is the airflow and direction settings appropriate for the room?
  • Why is the indoor unit not working as per the commanded given by remote controller?

    Please check the following:

    • Are the batteries inside the remote controller dead?
    • Are the batteries properly fitted inside the remote controller?
  • Can I cover the front of the outdoor unit to make it less visible?

    The outdoor unit of a split AC must have sufficient clearance around it to perform properly.

    If you would like to cover your outdoor unit, consult a Blue Star service expert to see if it can be done in someway without affecting its performance.

Heavy Duty

  • How durable is Heavy Duty outdoor unit against sun, rain, and wind?

    Blue Star's Heavy Duty outdoor units are designed to operate outside your home.

    If installed and secured correctly, the outdoor unit may withstand high ambient conditions such as extreme temperatures, rain, and wind.

  • What is a heavy duty AC?

    A heavy duty AC is an AC that is designed to withstand harsh conditions and provide reliable cooling. These ACs are typically used in residential, commercial and industrial applications, where they are exposed to dust, dirt, and extreme temperatures.

Smart ACs and Anti-Virus Tech

  • What does a Smart AC mean?

    You can access your AC from anywhere in the world just by connecting your AC to your smart phone, you can operate your AC from anywhere remotely, only with an internet connection. This is what converts your conventional AC to a Smart AC.

  • What is the difference between a Smart Enabled AC and Smart Ready AC?

    Smart Enabled ACs come pre-equipped with a Wi-Fi PCB which makes your AC Smart at no extra cost.

    Smart Ready ACs give the consumers an option to convert their normal AC to a WI-FI enabled AC by having a small WI-FI PCB installed at an additional cost. Please get in touch with Blue Star's authorised service center to convert your normal ACs to Smart ACs.

  • How do I convert my normal AC to Smart AC?

    You can convert your normal AC to a Smart AC by simply raising a customer complaint. You may also get in touch with Blue Star's authorised service center to register your request to convert your normal ACs to Smart ACs.

  • Can I clean my Anti-virus technology model's filter?

    Yes, you can clean your Anti-Virus Technology Model's filter in the indoor unit. To clean the same, please follow the steps below:

    • Step 1: Lift the indoor panel on the indoor unit by holding the panel from side by side horizontally.
    • Step 2: Hold the knobs of the air filter and take out the air filter from AC indoor unit.
    • Step 3: Clean the air filter with normal temperature water and light brush.
    • Step 4: Wait until the air filter becomes completely dry.
    • Step 5: Re-fix the dry and cleansed air filter in the indoor unit of the AC.

    Note: - For better cooling performance, clean the AC filter every 30 days, depending on your usage.

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