Should one buy a Split AC or a Window AC?
A room air conditioner 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 consTonaints, one could go for a window AC. Though window ACs
are cheaper and easy to install, split ACs are quieter in operation,
more aesthetically appealing and have better air disTonibution. If
there are no exposed walls, a split AC is the only option for
purchase. 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 air conditioner as compared to the
window air conditioner. However, installing split ACs may require
some renovation work, which implies a monetary investment.
What is the right AC tonnage for my room?
To know the right tonnage of AC to buy, one needs to do a heat load
calculation of the room to be air-conditioned. Very often, a thumb
rule of 100 sq. ft. = 1 Ton is applied to calculate the room AC
tonnage. However, this method may not always 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 Air Conditioner may provide inadequate
cooling with perhaps the compressor never cutting off, and buying an
oversized one may result in high power bills.
What is an Inverter AC?
Fixed Speed Window and standard Split Air Conditioners 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. The 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 Ton inverter
AC can decrease its capacity to 1 Ton or increase its capacity to
1.75 Ton, 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 an anti-microbial filter and a PM2.5 catching filter which
traps dust particles, and 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
creates less noise and automatically adjusts the temperature during
the night so that it is 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 ‘iFeel’ helps in maintaining the set
temperature around the person rather than the air conditioner. A
sensor on the remote signals the thermostat in the unit, which
adjusts the cooling accordingly, making it more comfortable.
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 ACs for much longer periods and
the power tariff is likely to increase over the years.
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 switched on. 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.
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- 240 V. With voltages in most parts of India going
well below 190 V, 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 insulation of 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 televisions and 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 comfortably 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 costs
| Air Conditioner Category | Installation Cost* |
|---|---|
| Window Air Conditioners | ₹650/- (+GST) |
| Portable Air Conditioners | ₹650/- (+GST) |
| Split Air Conditioners | ₹1199/- (+ GST) |
Download “Blue Star Customer Care App” before installation and avail of the special offer on Split Air Conditioners: ₹999/- (+ GST) *Limited-period offer valid for residential usage only.
What is the ideal tonnage of an Air Conditioner that is suitable for my room size?*
Standard Installation costs
| 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) |
*Data in the table is indicative and may not always be accurate. It is recommended to request a technician to visit the room and do a heat load calculation.
How do I find the model name of my AC?
The model name of an AC is shown on a data plate on the indoor unit
as well as on the outdoor unit. You can also see the same on the
warranty certificate on the user manual received along with the
machine.
Why is the indoor unit not working?
Please check the following: Is the AC unit switched on? Is there a
power failure in your house or area? Has the fuse blown or the
circuit breaker tripped? Is the timer switched on? Is there any
error on the IDU display? Please get in touch with Blue Star
Authorised Service Centre in case of any issues.
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 it's performance.
What does one pay for AC installation?
AI Pro senses the ambient temperature outside and the conditions
inside the room. It then intelligently optimises the cooling and fan
speed to ensure maximum comfort. AI Pro can be enabled by pressing
the mode button on the AC remote.
How does Convertible Cooling work?
Convertible Cooling empowers users to select the desired cooling
capacity. With just a touch of a button on the remote, one can
adjust the AC's cooling capacity from 115% to 40%. This adaptability
ensures that you can enjoy the perfect level of cooling tailored to
your specific comfort requirements and the prevailing ambient
conditions.
What are DigiQ Penta Sensors and how do they protect the critical electronic components?
Blue Star ACs are designed with intelligent digital sensors that
integrate advanced microcontrollers. These state of the art sensors
are engineered to deliver unparalleled accuracy, reliability, and
performance in diverse applications. The DigiQ Penta Sensors
optimise cooling in varying load conditions and protect critical
electronic components.
How does the 4-Way Swing feature ensure uniform cooling in the room?
4-way swing feature is thoughtfully designed with motorised
horizontal and vertical swings for uniform cooling. This
omni-directional airflow ensures that every corner of the room
receives the same level of cooling comfort.
What makes Nano BluProtect Technology so special?
The Nano BluProtect coating on the hairpin bend in the indoor and
outdoor unit (in the evaporator and condenser) protects the AC from
corrosion and leakage while providing efficient and long-lasting
cooling performance.
What are the advantages of the Anti-Corrosive Blue Fin Coating?
Anti-Corrosive Blue Fins involve a specially designed coating on
both the evaporator coils in the indoor unit and the condenser coils
in the outdoor unit which enhances durability, particularly in humid
conditions. This coating serves as a strong barrier against
corrosion, significantly extending the lifespan of the AC.
How does Precision Cooling Technology work?
Precision Cooling Technology helps in achieving a remarkable
accuracy of +/-0.5°C, which effectively eliminates temperature
swings. The result of this is an unparalleled cooling experience
that consistently maintains a comfortable indoor climate, regardless
of the ambient conditions.
What are the benefits of Dual User Setting Preference?
With multiple users of ACs at home, Blue Star’s Dual User Setting
Preference ensures two users can personalise and save their
preferred climate setting mode. Users can select and save their
mode, set temperature, fan speed and swing.
What does a Smart Wi-Fi AC mean?
You can access your AC from anywhere in the world just by connecting
your AC to your smartphone, only with an active internet connection.
This is what converts your conventional AC to a Smart Wi-Fi AC.
What is the Customised Sleep feature?
With the Customised Sleep feature, one can adjust the temperature
and fan speed of the AC for every hour up to 12 hours. This helps
the user in having a comfortable sleep throughout the night.
How can I use the Voice Command Technology?
With Voice Command Technology, customers can operate their ACs
through their smart devices like Amazon Alexa or Google Home through
English or Hindi voice commands. A simple voice command like “Alexa,
switch on the AC" is all it takes to operate the AC, without the
need for a remote or smartphone*.
What is the difference between a Smart Wi-Fi AC and a Smart Ready AC?
Smart Wi-Fi 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 centre to convert your normal
ACs to a smart one.
How do I convert my normal AC to a Smart AC?
You can convert your normal AC to a Smart Wi-Fi AC by simply raising
a customer complaint. You may also get in touch with Blue Star's
authorised service centre to register your request to convert your
normal ACs to Smart Wi-Fi ACs by paying for the Wi-Fi module cost.
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.
What are the benefits of a Heavy Duty AC?
Heavy Duty ACs are designed for larger spaces or extreme climates.
They offer a powerful cooling capacity, can handle higher heat
loads, and are more durable than standard ACs.
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.
How many components will I receive if I order Hot & Cold AC?
Blue Star's Hot & Cold Split AC will include one Indoor unit, one
outdoor unit, one remote and one user manual. The connecting wire
and copper kit received will vary from 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.
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 AC work efficiently
even in the heating mode. This ensures that the warm air stays
inside the room to keep the room temperature at the 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 the heating performance of the unit. When ice
forms on the condenser side, the AC stops running and the defrosting
cycle kicks in and runs until the condenser side temperature is
restored to the original temperature desired for heating operation.
While defrosting is in progress, the operation indicator blinks on
the indoor unit.
Why is steam coming out of the condenser side?
During the 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, a small
amount of heat may 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 the 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 the 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? Are the
airflow and direction settings appropriate for the room?
How does Anti-Virus Technology work?
The Anti-Virus ACs are designed with a unique and effective
anti-virus coated filter. Through its positive charge, it attracts
the negatively charged viruses like a powerful magnet and
deactivates them when air passes through this filter.
What type of pollutants does the PM2.5 Filter target?
The high-performance PM2.5 filter is specifically designed to combat
one of the most harmful pollutants we encounter: Particulate Matter
(PM)2.5. These minute particles pose a significant health risk when
inhaled. Blue Star's specialised filter creates an electrostatic
shield, effectively trapping these tiny, aerosolised particles. This
results in indoor air that is safe and offers a breath of fresh and
clean air.
What are the advantages of having an Anti-Microbial Filter?
The Anti-Microbial Filter incorporates a special coating which is
formulated to ensure effective microbial destruction as well as
long-term control of microbial growth on the filter. Additionally,
this advanced coating is free of heavy metals, nano-silver, and
halogens, making it an exceptionally safe choice for Air
Conditioners.
Can I clean my Anti-Virus AC's filter?
Yes, you can clean your Anti-Virus AC's filter which is available 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.
How does a Super Energy Efficient AC achieve enhanced energy efficiency?
Blue Star's Dynamic Drive Design Technology is a unique engineering
design where the inverter drive and the compressor are balanced to
achieve enhanced energy efficiency, resulting in optimised cooling
capacity. As a result, the 1.0 TR Inverter Split Air Conditioners
achieve 6.25 High ISEER, which is 25%* more than the current 5-Star
ISEER requirements and 64%* more energy-efficient than a 3-Star
Rated Inverter Split Air Conditioner.
*T&C Apply.
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 Air
Conditioners of all brands are tested and certified by a third party
agency for the star-rating.
How does the star rating system help consumers choose an energy-efficient Air Conditioner?
The Star rating of an Air Conditioner is an indicator of its energy
efficiency and is certified by the Bureau of Energy Efficiency
(BEE). The Star rating aims to help buyers understand the energy
efficiency of an Air Conditioner. More the Stars, the higher the
energy savings and lower the energy bills for the user.As an AC
buyer,you can see a Star Label with the ISEER (Indian Seasonal
Energy Efficient Ratio) rating standards affixed on the Air
Conditioner. These vary from 1 Star to 5 Stars, with 1 Star being
the lowest and 5 Stars being the highest in terms of energy
efficiency. Blue Star Air Conditioners are stringently tested and
qualify for the BEE energy rating standards.
What are the differences between a Portable AC and a Split AC?
| Features | Portable AC | Split AC |
|---|---|---|
| Cooling Capacity | Low - Suitable for small rooms only. | High - Suitable for large rooms and houses. |
| Installation | Easy to set up yourself, no permanent installation. | Requires professional installation. |
| Mobility | Portable (Requires ducting). | Permanent fixture. |
| Efficiency | Less energy efficient, tends to lose air through exhaust hose. | More energy efficient. |
| Noise Level | Noisier - All components are located in one unit. | Quieter - Compressor unit is located outdoors. |
| Maintenance | May require emptying water tank frequently. | Requires minimal maintenance. |
| Cost | Lower upfront cost. | Higher upfront cost. |
| Window Access | Requires a window for exhaust hose. | Does not require a window. |
| Ideal For | Renters, temporary needs, and small spaces. | Homes and large spaces. |