|
کولرگازی ایران |
| |
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 |
| 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].
|
| 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.
|
| 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:
|
| 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:
|
| 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. |
| 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.
|
| 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. |
| 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
|
| Question:
|
|
|
| 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
|
| 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. |
| 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). |
| 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.
|
| 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
|
| 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
|
| 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.
|
| 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.
|
| 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.
|
| 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.
|
| 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.
|
| 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. |
| 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.
|
| 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. |
| 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. |
| 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. |
| 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 |
| 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. |
| 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. |
