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COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. VENTILATION FANS IN HVAC WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones.HVAC SOFTWARES
HVAC Softwares are needed to design simple and complicated air conditioning systems. There are many areas of design that engineers have to consider when designing parts that constitute a complete working unit. Mechanical engineers will focus on the mechanical design aspect of the unit ranging from plastic parts design to metal thathouse the unit.
HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. AIR CONDITIONING FILTER Air Conditioning Filter. Air conditioning filter in the house or offices is used to remove solid contaminants such as smoke, pollen, dust, grease and pollen to ensure better air quality for the occupants. A study showed that indoor pollution is common these days due to the chemicals that are used in household furnishings andvarious goods.
AIR CONDITIONER MOTORS Here are four types of electric motors that are commonly being used. Split-Phase Air Conditioner Motor. This is the simplest design where the RUN winding and START winding are connected in parallel and 90° electrically apart. It is usually used in small pumps, fans andblowers where the
HVAC QUESTIONS
Ans: 1) One reason could be the OFF timer and ON timer are activated. OFF timer off the AC after a certain duration or time whereas ON timer on the AC after a certain duration or time. 2) Second reason could be you pressed the remote control ON/OFF button in sucession. Q10: My split unit is a panasonic non-inverter air-conditioner and I have toMODBUS IN HVAC
Modbus In HVAC. What is Modbus? It is a royalty free serial communication protocol where many devices in a network can exist together and information being transmitted in the network.It was developed way back in the year 1979 by Modicon and is widely used in many industrial equipment. AIR CONDITIONING THERMOSTAT Mechanical Type. The mechanical type is usually simple and can be powered directly from the line voltage. The temperature sensor used is usually bimetallic of which the opening or closing of a valve is determined by the setting of the room temperature. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONER NOISE Air Conditioner Noise. Noise is unwanted sound and needs to be considered when designing HVAC equipment. Air conditioner noise is unavoidable but it can be minimized with the use of insulator, rubber and other noise absorber materials. Good equipment design plays a big factor in the air conditioner noise emitted by the unit. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.HVAC SOFTWARES
HVAC Softwares are needed to design simple and complicated air conditioning systems. There are many areas of design that engineers have to consider when designing parts that constitute a complete working unit. Mechanical engineers will focus on the mechanical design aspect of the unit ranging from plastic parts design to metal thathouse the unit.
COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. VARIABLE REFRIGERANT FLOW Midea V5X VRF Series. This all DC Inverter variable refrigerant flow system uses all DC inverter compressors, all DC fan motors and has an EER of 4.7 and COP of 5.6 for a 8 HP category. Typical features are as follows. Outdoor temperature heating mode operation from -20°C to 24°C and cooling mode from -5°C to 48 °C.HEATPUMP THERMOSTAT
Heatpump Thermostat - COOL Operation. The indoor unit is located inside the room where cooling or heating of the space is required. The temperature of the space is obtained by using a thermistor that has different resistance value at different temperature. Turn on the power supply to the unit. When the remote control settings in COOL mode withHVAC QUESTIONS
Ans: 1) One reason could be the OFF timer and ON timer are activated. OFF timer off the AC after a certain duration or time whereas ON timer on the AC after a certain duration or time. 2) Second reason could be you pressed the remote control ON/OFF button in sucession. Q10: My split unit is a panasonic non-inverter air-conditioner and I have to FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONER NOISE Air Conditioner Noise. Noise is unwanted sound and needs to be considered when designing HVAC equipment. Air conditioner noise is unavoidable but it can be minimized with the use of insulator, rubber and other noise absorber materials. Good equipment design plays a big factor in the air conditioner noise emitted by the unit. ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. AIR CONDITIONER REFRIGERANT The common refrigerant blends used in the air conditioning industry are: R-410A CH2F2/CHF2-CF3. R-407c. R-410A are used as a replacement refrigerant for residential air conditioning applications. R-407C are used as R-22 replacement. Due to their higher GWP, DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. AIR CONDITIONER NOISE Air Conditioner Noise. Noise is unwanted sound and needs to be considered when designing HVAC equipment. Air conditioner noise is unavoidable but it can be minimized with the use of insulator, rubber and other noise absorber materials. Good equipment design plays a big factor in the air conditioner noise emitted by the unit.HVAC COMPRESSOR OIL
Compressor oil is a necessary component in any air conditioning system that uses compressor in its compression system. There are three main purposes of the oil. They are used for lubrication, removal of heat and for sealing. Lubrication cooling is needed in reciprocating compressor as the piston compresses the refrigerant gas. PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT R134a Refrigerant. R134a is also known as Tetrafluoroethane (CF3CH2F) from the family of HFC refrigerant. With the discovery of the damaging effect of CFCs and HCFCs refrigerants to the ozone layer, the HFC family of refrigerant has been widely used as their replacement. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. AIR CONDITIONER REFRIGERANT The common refrigerant blends used in the air conditioning industry are: R-410A CH2F2/CHF2-CF3. R-407c. R-410A are used as a replacement refrigerant for residential air conditioning applications. R-407C are used as R-22 replacement. Due to their higher GWP, DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. AIR CONDITIONER NOISE Air Conditioner Noise. Noise is unwanted sound and needs to be considered when designing HVAC equipment. Air conditioner noise is unavoidable but it can be minimized with the use of insulator, rubber and other noise absorber materials. Good equipment design plays a big factor in the air conditioner noise emitted by the unit.HVAC COMPRESSOR OIL
Compressor oil is a necessary component in any air conditioning system that uses compressor in its compression system. There are three main purposes of the oil. They are used for lubrication, removal of heat and for sealing. Lubrication cooling is needed in reciprocating compressor as the piston compresses the refrigerant gas. PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT R134a Refrigerant. R134a is also known as Tetrafluoroethane (CF3CH2F) from the family of HFC refrigerant. With the discovery of the damaging effect of CFCs and HCFCs refrigerants to the ozone layer, the HFC family of refrigerant has been widely used as their replacement. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC Ventilation fans are used to circulate the air in the buildings or houses. This type of ventilation is known as mechanical ventilation in which fans or blowers are used to create movement of the air. The other way to ventilate a house is using the natural ventilation where the air is moved by natural forces. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones.THERMAL INSULATION
Thermal Insulation. Thermal insulation in air conditioning system is primarily used to reduce heat gain or heat loss from piping. Other factors include preventing the icing of water vapor and condensation on cold surface. Water vapor from the air or surrounding area must be kept from entering the cold side of the pipe to prevent condensationof
AIR CONDITIONING FILTER Air Conditioning Filter. Air conditioning filter in the house or offices is used to remove solid contaminants such as smoke, pollen, dust, grease and pollen to ensure better air quality for the occupants. A study showed that indoor pollution is common these days due to the chemicals that are used in household furnishings andvarious goods.
AIR CONDITIONER COMPRESSOR PRINCIPLES AND APPLICATIONS Air conditioner compressor is used to remove the heat-laden vapor refrigerant from the evaporator of the air conditioning systems. In layman term, the compressor compresses or squeezes the vapor into a smaller volume at high temperature. The external-drive compressor has a crankshaft that is driven by a pulley and belt system. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR HANDLING UNIT
Air Handling Unit. The definition of air handling unit from ANSI/AHRI Standard 430-2009 states that it is "A factory-made encased assembly consisting of a fan or fans and other necessary equipment to perform one or more of the functions of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air." The AHU isused
REFRIGERANT COLOR CODES Refrigerant Color Codes. Refrigerant color codes are useful for us to recognize the type of gas that is stored in the cylinders. The name of the gas are usually labelled on the cylinders as an added aid so that we will not make any mistakes in recognizing them. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.HVAC SOFTWARES
HVAC Softwares are needed to design simple and complicated air conditioning systems. There are many areas of design that engineers have to consider when designing parts that constitute a complete working unit. Mechanical engineers will focus on the mechanical design aspect of the unit ranging from plastic parts design to metal thathouse the unit.
COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. VARIABLE REFRIGERANT FLOW Midea V5X VRF Series. This all DC Inverter variable refrigerant flow system uses all DC inverter compressors, all DC fan motors and has an EER of 4.7 and COP of 5.6 for a 8 HP category. Typical features are as follows. Outdoor temperature heating mode operation from -20°C to 24°C and cooling mode from -5°C to 48 °C.HEATPUMP THERMOSTAT
Heatpump Thermostat - COOL Operation. The indoor unit is located inside the room where cooling or heating of the space is required. The temperature of the space is obtained by using a thermistor that has different resistance value at different temperature. Turn on the power supply to the unit. When the remote control settings in COOL mode withHVAC QUESTIONS
Ans: 1) One reason could be the OFF timer and ON timer are activated. OFF timer off the AC after a certain duration or time whereas ON timer on the AC after a certain duration or time. 2) Second reason could be you pressed the remote control ON/OFF button in sucession. Q10: My split unit is a panasonic non-inverter air-conditioner and I have to FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONER NOISE Air Conditioner Noise. Noise is unwanted sound and needs to be considered when designing HVAC equipment. Air conditioner noise is unavoidable but it can be minimized with the use of insulator, rubber and other noise absorber materials. Good equipment design plays a big factor in the air conditioner noise emitted by the unit. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. HVAC EVENTS 2020-2021 The other big event to look out for in Asia is the Mostra Convegno Expocomfort (MCE) Asia in Singapore from Sept 8-10, 2021 (New Dates). MCE Asia is set to be a dedicated trade exhibition for the hottest technologies in the Cooling, Water, Renewable Energy and Heating Sectors from Europe to the home ground of Singapore, and expected to attract 11,500 buyers and 500 exhibitors. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the VENTILATION FANS IN HVAC DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. AIR CONDITIONING THERMOSTAT There are many different types of air conditioning thermostat. Simple bimetallic themostat, simple electronic thermostat and programmable thermostat are the common ones. R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance.HVAC SOFTWARES
HVAC Softwares are needed to design simple and complicated air conditioning systems. There are many areas of design that engineers have to consider when designing parts that constitute a complete working unit. Mechanical engineers will focus on the mechanical design aspect of the unit ranging from plastic parts design to metal thathouse the unit.
COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. VARIABLE REFRIGERANT FLOW Midea V5X VRF Series. This all DC Inverter variable refrigerant flow system uses all DC inverter compressors, all DC fan motors and has an EER of 4.7 and COP of 5.6 for a 8 HP category. Typical features are as follows. Outdoor temperature heating mode operation from -20°C to 24°C and cooling mode from -5°C to 48 °C.HEATPUMP THERMOSTAT
Heatpump Thermostat - COOL Operation. The indoor unit is located inside the room where cooling or heating of the space is required. The temperature of the space is obtained by using a thermistor that has different resistance value at different temperature. Turn on the power supply to the unit. When the remote control settings in COOL mode withHVAC QUESTIONS
Ans: 1) One reason could be the OFF timer and ON timer are activated. OFF timer off the AC after a certain duration or time whereas ON timer on the AC after a certain duration or time. 2) Second reason could be you pressed the remote control ON/OFF button in sucession. Q10: My split unit is a panasonic non-inverter air-conditioner and I have to FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONER NOISE Air Conditioner Noise. Noise is unwanted sound and needs to be considered when designing HVAC equipment. Air conditioner noise is unavoidable but it can be minimized with the use of insulator, rubber and other noise absorber materials. Good equipment design plays a big factor in the air conditioner noise emitted by the unit. INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. INVERTER AIR CONDITIONING Inverter Air Conditioning. The inverter air conditioning is the latest technology in the HVAC field that is becoming more popular due to its environmental friendly and energy savings approach. Providing comfort to the users is another big advantage of this kind of system. Traditionally, the compressor that is used in an air conditioningsystem
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
GAS FURNACE FUNDAMENTALS Gas Furnace. Gas furnace is one of the oldest equipment in the heating industry. Over the years, it has evolved from the simple gas-fired-gravity heating system to the more complicated gas-fired-forced air heating system.. This type of system is used in temperate countries when heating is required to warm the houses or buildings during winter. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT This refrigerant is not 100% compatible with the lubricants and mineral-based refrigerant currently used in R-12. Design changes to the condenser and evaporator need to be done to use this refrigerant. The use of smaller hoses and 30% increase in control pressure regulations also have to be done to the system. Properties of R-134a. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. INVERTER AIR CONDITIONING Inverter Air Conditioning. The inverter air conditioning is the latest technology in the HVAC field that is becoming more popular due to its environmental friendly and energy savings approach. Providing comfort to the users is another big advantage of this kind of system. Traditionally, the compressor that is used in an air conditioningsystem
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
GAS FURNACE FUNDAMENTALS Gas Furnace. Gas furnace is one of the oldest equipment in the heating industry. Over the years, it has evolved from the simple gas-fired-gravity heating system to the more complicated gas-fired-forced air heating system.. This type of system is used in temperate countries when heating is required to warm the houses or buildings during winter. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT This refrigerant is not 100% compatible with the lubricants and mineral-based refrigerant currently used in R-12. Design changes to the condenser and evaporator need to be done to use this refrigerant. The use of smaller hoses and 30% increase in control pressure regulations also have to be done to the system. Properties of R-134a. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
AIR CONDITIONER RATINGS Here are some of the air conditioner ratings you may encounter in the brochures or specifications of the air conditioner or heat pump unit. 1. Capacity. This is the most basic specifications that you should look out for. In ductless split, the range of cooling capacity can go from 9,000 Btu/h to over 30,000 Btu/h. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. AIR CONDITIONER COMPRESSOR PRINCIPLES AND APPLICATIONS Air conditioner compressor is used to remove the heat-laden vapor refrigerant from the evaporator of the air conditioning systems. In layman term, the compressor compresses or squeezes the vapor into a smaller volume at high temperature. The external-drive compressor has a crankshaft that is driven by a pulley and belt system. AIR CONDITIONER REFRIGERANT The common refrigerant blends used in the air conditioning industry are: R-410A CH2F2/CHF2-CF3. R-407c. R-410A are used as a replacement refrigerant for residential air conditioning applications. R-407C are used as R-22 replacement. Due to their higher GWP,COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. AIR CONDITIONING FILTER Air Conditioning Filter. Air conditioning filter in the house or offices is used to remove solid contaminants such as smoke, pollen, dust, grease and pollen to ensure better air quality for the occupants. A study showed that indoor pollution is common these days due to the chemicals that are used in household furnishings andvarious goods.
AIR HANDLING UNIT
Air Handling Unit. The definition of air handling unit from ANSI/AHRI Standard 430-2009 states that it is "A factory-made encased assembly consisting of a fan or fans and other necessary equipment to perform one or more of the functions of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air." The AHU isused
INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. INVERTER AIR CONDITIONING Inverter Air Conditioning. The inverter air conditioning is the latest technology in the HVAC field that is becoming more popular due to its environmental friendly and energy savings approach. Providing comfort to the users is another big advantage of this kind of system. Traditionally, the compressor that is used in an air conditioningsystem
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
GAS FURNACE FUNDAMENTALS Gas Furnace. Gas furnace is one of the oldest equipment in the heating industry. Over the years, it has evolved from the simple gas-fired-gravity heating system to the more complicated gas-fired-forced air heating system.. This type of system is used in temperate countries when heating is required to warm the houses or buildings during winter. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT This refrigerant is not 100% compatible with the lubricants and mineral-based refrigerant currently used in R-12. Design changes to the condenser and evaporator need to be done to use this refrigerant. The use of smaller hoses and 30% increase in control pressure regulations also have to be done to the system. Properties of R-134a. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. INVERTER AIR CONDITIONING Inverter Air Conditioning. The inverter air conditioning is the latest technology in the HVAC field that is becoming more popular due to its environmental friendly and energy savings approach. Providing comfort to the users is another big advantage of this kind of system. Traditionally, the compressor that is used in an air conditioningsystem
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
GAS FURNACE FUNDAMENTALS Gas Furnace. Gas furnace is one of the oldest equipment in the heating industry. Over the years, it has evolved from the simple gas-fired-gravity heating system to the more complicated gas-fired-forced air heating system.. This type of system is used in temperate countries when heating is required to warm the houses or buildings during winter. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT This refrigerant is not 100% compatible with the lubricants and mineral-based refrigerant currently used in R-12. Design changes to the condenser and evaporator need to be done to use this refrigerant. The use of smaller hoses and 30% increase in control pressure regulations also have to be done to the system. Properties of R-134a. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
AIR CONDITIONER RATINGS Here are some of the air conditioner ratings you may encounter in the brochures or specifications of the air conditioner or heat pump unit. 1. Capacity. This is the most basic specifications that you should look out for. In ductless split, the range of cooling capacity can go from 9,000 Btu/h to over 30,000 Btu/h. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. AIR CONDITIONER COMPRESSOR PRINCIPLES AND APPLICATIONS Air conditioner compressor is used to remove the heat-laden vapor refrigerant from the evaporator of the air conditioning systems. In layman term, the compressor compresses or squeezes the vapor into a smaller volume at high temperature. The external-drive compressor has a crankshaft that is driven by a pulley and belt system. AIR CONDITIONER REFRIGERANT The common refrigerant blends used in the air conditioning industry are: R-410A CH2F2/CHF2-CF3. R-407c. R-410A are used as a replacement refrigerant for residential air conditioning applications. R-407C are used as R-22 replacement. Due to their higher GWP,COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. AIR CONDITIONING FILTER Air Conditioning Filter. Air conditioning filter in the house or offices is used to remove solid contaminants such as smoke, pollen, dust, grease and pollen to ensure better air quality for the occupants. A study showed that indoor pollution is common these days due to the chemicals that are used in household furnishings andvarious goods.
AIR HANDLING UNIT
Air Handling Unit. The definition of air handling unit from ANSI/AHRI Standard 430-2009 states that it is "A factory-made encased assembly consisting of a fan or fans and other necessary equipment to perform one or more of the functions of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air." The AHU isused
INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. INVERTER AIR CONDITIONING Inverter Air Conditioning. The inverter air conditioning is the latest technology in the HVAC field that is becoming more popular due to its environmental friendly and energy savings approach. Providing comfort to the users is another big advantage of this kind of system. Traditionally, the compressor that is used in an air conditioningsystem
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
GAS FURNACE FUNDAMENTALS Gas Furnace. Gas furnace is one of the oldest equipment in the heating industry. Over the years, it has evolved from the simple gas-fired-gravity heating system to the more complicated gas-fired-forced air heating system.. This type of system is used in temperate countries when heating is required to warm the houses or buildings during winter. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT This refrigerant is not 100% compatible with the lubricants and mineral-based refrigerant currently used in R-12. Design changes to the condenser and evaporator need to be done to use this refrigerant. The use of smaller hoses and 30% increase in control pressure regulations also have to be done to the system. Properties of R-134a. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
INTERNET OF THINGS IN HVAC WORLD Internet of Things in HVAC&R. The International Telecommunication Union or ITU defined Internet of Things(IoT) as "A global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things based on existing and evolving interoperable information and communication technologies. INVERTER AIR CONDITIONING Inverter Air Conditioning. The inverter air conditioning is the latest technology in the HVAC field that is becoming more popular due to its environmental friendly and energy savings approach. Providing comfort to the users is another big advantage of this kind of system. Traditionally, the compressor that is used in an air conditioningsystem
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
GAS FURNACE FUNDAMENTALS Gas Furnace. Gas furnace is one of the oldest equipment in the heating industry. Over the years, it has evolved from the simple gas-fired-gravity heating system to the more complicated gas-fired-forced air heating system.. This type of system is used in temperate countries when heating is required to warm the houses or buildings during winter. DC INVERTER AIR CONDITIONER WORKING PRINCIPLES DC Brushless Motor. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electricalnoise.
DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the R32 REFRIGERANT FOR HVAC INDUSTRY R32 uses 78% lesser refrigerant to operate compared to R-410A and most newer products in Japan have been phasing in this refrigerant since 2013. This gas is categorized under flammability level A2 ( ISO 817:2014) hence care has to be taken when using this gas. It is very close to R-410A in terms of operating conditions and performance. CHILLED WATER AIR CONDITIONING PRINCIPLES AND APPLICATIONS The chilled water is piped into fan coil units which consist of fins & fans with large surface area that absorbed heat from the space through the air-heat exchange process. Each fan coil unit has its own thermostat that regulate the amount of cooling needed. The chilled water got heated up and returns to the chiller at about 55°F or13°C.
PROPERTIES AND APPLICATIONS OF R134A REFRIGERANT This refrigerant is not 100% compatible with the lubricants and mineral-based refrigerant currently used in R-12. Design changes to the condenser and evaporator need to be done to use this refrigerant. The use of smaller hoses and 30% increase in control pressure regulations also have to be done to the system. Properties of R-134a. FUNCTION OF CONDENSER Function of Condenser. In a cooling cycle of a refrigeration system, heat is absorbed by the vapor refrigerant in the evaporator followed by the compression of the refrigerant by the compressor. The high pressure and high temperature state of the vapor refrigerant is then converted to liquid at the cond. It is designed to condenseeffectively
AIR CONDITIONING CALCULATIONS Use this result to compare with the calculation done by the air conditioning contractors for your own checking purposes. Step 1. Find the volume of your room in cubic feet. This is done by measuring the length, width and height of the room in feet and multiply all the three dimensions together. Volume = Width X Length X Height (cubicfeet) Step 2.
AIR CONDITIONER RATINGS Here are some of the air conditioner ratings you may encounter in the brochures or specifications of the air conditioner or heat pump unit. 1. Capacity. This is the most basic specifications that you should look out for. In ductless split, the range of cooling capacity can go from 9,000 Btu/h to over 30,000 Btu/h. DUCTLESS SPLIT INSTALLATION Ductless Split Installation - On Site WATER - Ensure no water enter the refrigerant when connecting the refrigerant piping between the indoor and outdoor units.Don't leave the pipe exposed and extra care has to be taken during raining day. DUST - Ensure not to expose the copper piping to the atmosphere as this will cause dust to enter the pipes.. Make sure the caps are in placed as dust in the WATER COOLED AIR CONDITIONER Water cooled air conditioner is also called water cooled condenser as its function is to reject the heat that was absorbed by the refrigerant in the evaporator. Water is used to cool the hot air refrigerant (180°F or 82°C) from the compressor by pumping counter-flow water in the condenser. ABSORPTION AIR CONDITIONING Compared to the vapor compression systems that uses mechanical energy to function, the absorption air conditioning is driven by heat energy. It uses a chemical process to change low temperature and low pressure vapor into high pressure vapor. The commonly used refrigerant in this system is water and ammonia or lithium bromide. AIR CONDITIONER COMPRESSOR PRINCIPLES AND APPLICATIONS Air conditioner compressor is used to remove the heat-laden vapor refrigerant from the evaporator of the air conditioning systems. In layman term, the compressor compresses or squeezes the vapor into a smaller volume at high temperature. The external-drive compressor has a crankshaft that is driven by a pulley and belt system. AIR CONDITIONER REFRIGERANT The common refrigerant blends used in the air conditioning industry are: R-410A CH2F2/CHF2-CF3. R-407c. R-410A are used as a replacement refrigerant for residential air conditioning applications. R-407C are used as R-22 replacement. Due to their higher GWP,COPPER TUBE FOR ACR
The soft copper is flexible and comes in rolls of 25 feet or 50 feet. The typical outer diameter ranges from 1/8 inch to 13⁄8 inch. Markings of ACR are done on the tubing to indicate that it is used for air conditioning and refrigeration purposes. During production, these parts are cleaned and dehydrated to remove the moisture from the tube. AIR CONDITIONING FILTER Air Conditioning Filter. Air conditioning filter in the house or offices is used to remove solid contaminants such as smoke, pollen, dust, grease and pollen to ensure better air quality for the occupants. A study showed that indoor pollution is common these days due to the chemicals that are used in household furnishings andvarious goods.
AIR HANDLING UNIT
Air Handling Unit. The definition of air handling unit from ANSI/AHRI Standard 430-2009 states that it is "A factory-made encased assembly consisting of a fan or fans and other necessary equipment to perform one or more of the functions of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air." The AHU isused
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AIR CONDITIONING SYSTEMS GUIDE Are you looking for information about air conditioning systems? You are at the right place. Hang on there and continue reading. This site will provide you with a comprehensive information about air conditioning that you need to know as an end user. Choosing a suitable air conditioner equipment and the rule-of-thumb in calculating thecooling
or heating capacity for your rooms are provided for your convenience. If you have the basics of electrical or mechanical knowledge, troubleshooting guide
is also provided as a DIY tool for you to check out the systems before calling a qualified technician. Electrical safety tips is also provided here. Many a times, the solution to the problem is as simple as reconnecting a loose wiring or changing a contactor. The development of air conditioning systems and refrigeration in the past few decades have provided comfort and convenience to our homes and the way we do things. It is now considered a basic necessity to have air conditioners and refrigerators in our homes. The advancement in the field of electronics have changed the development of heating, ventilation, air conditioning and refrigeration technology. More products have been designed to be more energy efficient and one that provides more comfort to the users by utilising the AC and DC inverter technology.
The inverter technology is increasingly been applied to the compressors, pumps and fan motors in the HVAC equipments. We are sure all of us are concerned for mother nature. Take comfort that there are many development in the area of refrigerant that have drastically reduced the use of R-22 refrigerant to the more ozone friendly such as R134-a and R410A. The latest preferred refrigerant that is in used is R32which not only has
zero Ozone Depletion Potential but also very low Global WarmingPotential.
A CHILLER FOR GREATER CAPACITY USE. You can do your part by buying equipment that use ozone friendly refrigerant and energy efficient units. As demand for this type of units increased, the price will drop hence their production will increase. Look out for Energy Efficient and Ozone Friendly logos when you shop for your air conditioners. Find out the energy savings tips,
Freon and its
impact on the environment. Are you a student or a designer? Most probably you would like to go into a more in-depth study of a certain topic on HVAC. Calculations and charts with links are also provided here for this purpose.Electronics control
in the various stages of air conditioning systems ranging from simple mechanical thermostat to centralized control system are also discussed here. There is something for you to learn about this field which was pioneered by Willis Haviland Carrier of the United States in 1902. If you are looking for scholarships to pursue your studies in this field in the United States, here are some HVAC/R awardsthat
you can apply.
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ANIMATED VIDEO OF A TYPICAL DIRECT EXPANSION AIR CONDITIONING SYSTEM YOU MIGHT LIKE THESE*
AIR CLEANER
Hepa Air Cleaner
*
DEHUMIDIFIER
Dehumidifier is used to help reduce the humidity of a room or space for the comfort of the occupants. Right humidity also helps to prevent the growth of mould and mildew which pose health hazard.*
AIR CONDITIONER BLOWER Air conditioner blower is also called air conditioner fan. The commonly used types are the propeller and centrifugal fans. Permanent split capacitor motors are widely used for multiple-speed fan.*
AIR CONDITIONER NOISE What is my air conditioner noise level? Ensure that the noise emitted does not go beyond the threshold or your neighbours may be irritated.ENERGY SAVING TIPS
REFRIGERANT
IAQ
MOTORS
HUMIDIFIER
COOLING LOAD
LEAK
DETECTION
HVAC SCHOLARSHIPSFILTER DRIER
HVAC CONTESTS
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AIR
FILTER
PUMPS
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HVAC MANUFACTURERS
AIR CONDITIONER RATINGSRADON
SPLIT AC BRANDS
SMART THERMOSTATS
DX SYSTEM
NEW! COMMENTS
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WHAT IS HEAT PUMP DEFROST?DIY
Maintaining your air conditioner. PROGRAMMABLE THERMOSTAT See the features of a typical programmable thermostat.DEHUMIDIFIER
Learn how humidity is removed from your room.FAQ
Here are the air conditioners frequently asked questions and answers. AIR COND. COIL CLEANER Clean your own air conditioner by using coil cleaner that can be easily purchased from the market.MOBILE HVAC APPS
Check mobile apps for HVAC.CONTROLS
HOW TO CHOOSE AN ENERGY EFFICIENT AIR CONDITIONER?* Home
AIR COND TYPES
* Absorption Air Cond* Central Air Cond
* Chilled Water
* Floor Air Cond
* Gas Furnace
* Geothermal HP
* Heat Pump
* Hydronic Heating
* Mini Splits
* Motor Homes
* Packaged Units
* Portable Air Cond
* PTAC/PTHP
* Rooftop Unit
* VRF
* Water Cooled Air Cond* Window Air Cond
* Window Heat Pump
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COMPONENTS
* Condensate Pump
* Condenser
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RELATED APPLIANCES
* Air Cooler
* Air Curtain
* Dehumidifier
* Heater
* Humidifier
* Process Cooling
* Roof Ventilators
DESIGN
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* Calculations
* Direct Expansion System * Electronic Controls * Electronic Phase Protector * Fan Speed Controller* HVAC Contests
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* Air Filter
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* Radon Gas
* Ventilation Fans
OTHERS
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HVAC EVENTS 2020-2021 Visiting HVAC events and trade shows are one of the best way to equip yourself with the latest happenings in the air conditioning and refrigeration field. See the listing of events for year 2020-2021.Learn More
*
HEATPUMP DEFROST
What is heatpump defrost? Read more on this feature that is usually automatic in a room or window air conditioning unit.Learn More
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HVAC CONTESTS
Join the HVAC Contests to enhance your understanding in this field ofstudy.
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AIR CONDITIONER MAINTENANCE GUIDE Air conditioner maintenance steps that you can do to ensure that your system continues to provide the cooling or heating needs for your homeor office.
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