"An air handler, or air handling unit (often abbreviated to AHU), is a device used to condition and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. An air handler is usually a large metal box containing a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to a ductwork ventilation system that distributes the conditioned air through the building and returns it to the AHU. Sometimes AHUs discharge (supply) and admit (return) air directly to and from the space served without ductwork.
Small air handlers, for local use, are called terminal units, and may only include an air filter, coil, and blower; these simple terminal units are called blower coils or fan coil units. A larger air handler that conditions 100% outside air, and no recirculated air, is known as a makeup air unit (MAU). An air handler designed for outdoor use, typically on roofs, is known as a packaged unit (PU) or rooftop unit (RTU)." [Air handler. Wikipedia]
The floor plan example "Air handler - HVAC plan" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Small air handlers, for local use, are called terminal units, and may only include an air filter, coil, and blower; these simple terminal units are called blower coils or fan coil units. A larger air handler that conditions 100% outside air, and no recirculated air, is known as a makeup air unit (MAU). An air handler designed for outdoor use, typically on roofs, is known as a packaged unit (PU) or rooftop unit (RTU)." [Air handler. Wikipedia]
The floor plan example "Air handler - HVAC plan" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC floor plan
The vector stencils library "HVAC equipment" contains 26 symbols of HVAC equipment. Use it for drawing HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans in the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rotary pump
Pump
Centrifugal pump
Fan blades, hor.
Fan blades, vert.
Fan blades, 4
Reciprocating pump
Screw pump
Centrifugal fan
Centrifugal fan 2
Axial fan
Axial fan 2
Moisture eliminator
Condenser
Condenser, plate type
Condenser, coil type
Air filter
Dryer
Silencer
Silencer 2
Pipe coil
Pipe coil, fins
Pipe coil, plate
Pipe coil, plate, fins
Refrigerant receiver
Chiller
The vector stencils library "HVAC equipment" contains 26 symbols of HVAC equipment. Use it for drawing HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans in the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rotary pump
Pump
Centrifugal pump
Fan blades, hor.
Fan blades, vert.
Fan blades, 4
Reciprocating pump
Screw pump
Centrifugal fan
Centrifugal fan 2
Axial fan
Axial fan 2
Moisture eliminator
Condenser
Condenser, plate type
Condenser, coil type
Air filter
Dryer
Silencer
Silencer 2
Pipe coil
Pipe coil, fins
Pipe coil, plate
Pipe coil, plate, fins
Refrigerant receiver
Chiller
The vector stencils library "HVAC equipment" contains 26 symbols of HVAC equipment. Use it for drawing HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans in the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rotary pump
Pump
Centrifugal pump
Fan blades, hor.
Fan blades, vert.
Fan blades, 4
Reciprocating pump
Screw pump
Centrifugal fan
Centrifugal fan 2
Axial fan
Axial fan 2
Moisture eliminator
Condenser
Condenser, plate type
Condenser, coil type
Air filter
Dryer
Silencer
Silencer 2
Pipe coil
Pipe coil, fins
Pipe coil, plate
Pipe coil, plate, fins
Refrigerant receiver
Chiller
The vector stencils library "HVAC control equipment" contains 48 HVAC symbols.
Use it for drawing HVAC systems diagrams, heating, ventilation, air conditioning, refrigeration, automated building control, and environmental control design building plans and equipment layouts.
The symbols example "HVAC control equipment - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Use it for drawing HVAC systems diagrams, heating, ventilation, air conditioning, refrigeration, automated building control, and environmental control design building plans and equipment layouts.
The symbols example "HVAC control equipment - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Duct, sgl line
Duct, dbl line
Return duct, sgl line
Return duct, dbl line
Supply duct, sgl line
Supply duct, dbl line
Return duct 2, sgl line
Return duct 2, dbl line
Supply duct extension, sgl line
Supply duct extension, dbl line
Return duct extension, sgl line
Return duct extension, dbl line
2-fan section, sgl line
2-fan section, dbl line
3-fan section, sgl line
3-fan section, dbl line
4-fan section, sgl line
4-fan section, dbl line
VAV box
DD-VAV box
Fan coil housing
Unit heater
Centrifugal fan
Propeller fan
Vane axial fan
Damper
Filter
Air flow station
Humidifier
Htg/clg coil
Valve
Water flow meter
Pump
Chiller
Cooling tower
Converter
Heat exchanger
Boiler
Equipment
Starter
VSD
Side to bottom pipe
Side to bottom pipe, arrow
Side to side pipe
Side to side pipe, arrow
Top to bottom pipe
Top to bottom pipe, arrow
Pipe flow arrow
"Ventilating (the V in HVAC) is the process of "changing" or replacing air in any space to provide high indoor air quality (i.e. to control temperature, replenish oxygen, or remove moisture, odors, smoke, heat, dust, airborne bacteria, and carbon dioxide). Ventilation is used to remove unpleasant smells and excessive moisture, introduce outside air, to keep interior building air circulating, and to prevent stagnation of the interior air.
Ventilation includes both the exchange of air to the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building may be divided into mechanical/ forced and natural types.
"Mechanical" or "forced" ventilation is used to control indoor air quality. Excess humidity, odors, and contaminants can often be controlled via dilution or replacement with outside air. However, in humid climates much energy is required to remove excess moisture from ventilation air.
Ventilation increases the energy needed for heating or cooling, however heat recovery ventilation can be used to mitigate the energy consumption. This involves heat exchange between incoming and outgoing air. Energy recovery ventilation additionally includes exchange of humidity." [Ventilation (architecture). Wikipedia]
The HVAC plan example "Blow-through unit ventilator" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Ventilation includes both the exchange of air to the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building may be divided into mechanical/ forced and natural types.
"Mechanical" or "forced" ventilation is used to control indoor air quality. Excess humidity, odors, and contaminants can often be controlled via dilution or replacement with outside air. However, in humid climates much energy is required to remove excess moisture from ventilation air.
Ventilation increases the energy needed for heating or cooling, however heat recovery ventilation can be used to mitigate the energy consumption. This involves heat exchange between incoming and outgoing air. Energy recovery ventilation additionally includes exchange of humidity." [Ventilation (architecture). Wikipedia]
The HVAC plan example "Blow-through unit ventilator" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC floor plan
This example was drawn on the base of HVAC schematics in the post "Central Air Pool Heater" from the blog of Nathan Stratton.
"With House Cool Mode, hot gas leaves the compressor runs through the reversing value into the condenser where it condenses into a liquid. Valve #1 is ON so liquid is able to leave the outside unit and run through the filter dryer and site glass into the evaporator upstairs in the house where the liquid flashes into a gas as it passes through the expansion valve and absorbs heat from the air passing through the evaporator. The cold gas travels downstairs and outside to the compressor and the cycle starts all over again." [robotics.net/ projects/ central-air-pool-heater/ ]
The HVAC plan example "Central air pool heater - House cool mode" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
"With House Cool Mode, hot gas leaves the compressor runs through the reversing value into the condenser where it condenses into a liquid. Valve #1 is ON so liquid is able to leave the outside unit and run through the filter dryer and site glass into the evaporator upstairs in the house where the liquid flashes into a gas as it passes through the expansion valve and absorbs heat from the air passing through the evaporator. The cold gas travels downstairs and outside to the compressor and the cycle starts all over again." [robotics.net/ projects/ central-air-pool-heater/ ]
The HVAC plan example "Central air pool heater - House cool mode" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC plan
The vector stencils library "HVAC equipment" contains 26 symbols of HVAC equipment. Use it for drawing HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans in the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rotary pump
Pump
Centrifugal pump
Fan blades, hor.
Fan blades, vert.
Fan blades, 4
Reciprocating pump
Screw pump
Centrifugal fan
Centrifugal fan 2
Axial fan
Axial fan 2
Moisture eliminator
Condenser
Condenser, plate type
Condenser, coil type
Air filter
Dryer
Silencer
Silencer 2
Pipe coil
Pipe coil, fins
Pipe coil, plate
Pipe coil, plate, fins
Refrigerant receiver
Chiller
"A thermostat is a component of a control system which senses the temperature of a system so that the system's temperature is maintained near a desired setpoint. The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. The name is derived from the Greek words thermos "hot" and statos "a standing".
A thermostat may be a control unit for a heating or cooling system or a component part of a heater or air conditioner. Thermostats can be constructed in many ways and may use a variety of sensors to measure the temperature. The output of the sensor then controls the heating or cooling apparatus. A thermostat may switch on and off at temperatures either side of the setpoint the extent of the difference is known as hysteresis and prevents too frequent switching of the controlled equipment." [Thermostat. Wikipedia]
The HVAC plan example "Digital unit ventilator control" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
A thermostat may be a control unit for a heating or cooling system or a component part of a heater or air conditioner. Thermostats can be constructed in many ways and may use a variety of sensors to measure the temperature. The output of the sensor then controls the heating or cooling apparatus. A thermostat may switch on and off at temperatures either side of the setpoint the extent of the difference is known as hysteresis and prevents too frequent switching of the controlled equipment." [Thermostat. Wikipedia]
The HVAC plan example "Digital unit ventilator control" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC floor plan
This example was drawn on the base of HVAC schematics in the post "Central Air Pool Heater" from the blog of Nathan Stratton.
"With House Cool Mode, hot gas leaves the compressor runs through the reversing value into the condenser where it condenses into a liquid. Valve #1 is ON so liquid is able to leave the outside unit and run through the filter dryer and site glass into the evaporator upstairs in the house where the liquid flashes into a gas as it passes through the expansion valve and absorbs heat from the air passing through the evaporator. The cold gas travels downstairs and outside to the compressor and the cycle starts all over again." [robotics.net/ projects/ central-air-pool-heater/ ]
The HVAC plan example "Central air pool heater - House cool mode" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
"With House Cool Mode, hot gas leaves the compressor runs through the reversing value into the condenser where it condenses into a liquid. Valve #1 is ON so liquid is able to leave the outside unit and run through the filter dryer and site glass into the evaporator upstairs in the house where the liquid flashes into a gas as it passes through the expansion valve and absorbs heat from the air passing through the evaporator. The cold gas travels downstairs and outside to the compressor and the cycle starts all over again." [robotics.net/ projects/ central-air-pool-heater/ ]
The HVAC plan example "Central air pool heater - House cool mode" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC plan
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