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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.
Duct, sgl line
Duct, sgl line, duct,
Duct, dbl line
Duct, dbl line, duct,
Return duct, sgl line
Return duct, sgl line, return duct,
Return duct, dbl line
Return duct, dbl line, return duct,
Supply duct, sgl line
Supply duct, sgl line, supply duct,
Supply duct, dbl line
Supply duct, dbl line, supply duct,
Return duct 2, sgl line
Return duct 2, sgl line, supply duct,
Return duct 2, dbl line
Return duct 2, dbl line, supply duct,
Supply duct extension, sgl line
Supply duct extension, sgl line, duct extension,
Supply duct extension, dbl line
Supply duct extension, dbl line, duct extension,
Return duct extension, sgl line
Return duct extension, sgl line, duct extension,
Return duct extension, dbl line
Return duct extension, dbl line, duct extension,
2-fan section, sgl line
2-fan section, sgl line, multi fan section,
2-fan section, dbl line
2-fan section, dbl line, multi fan section,
3-fan section, sgl line
3-fan section, sgl line, multi fan section,
3-fan section, dbl line
3-fan section, dbl line, multi fan section,
4-fan section, sgl line
4-fan section, sgl line, multi fan section,
4-fan section, dbl line
4-fan section, dbl line, multi fan section,
VAV box
VAV box, VAV box, variable air volume box,
DD-VAV box
DD-VAV box, DD-VAV box, double, duct, variable air volume box, VAV box, constant volume box, CV box,
Fan coil housing
Fan coil housing, fan coil housing,
Unit heater
Unit heater, unit heater,
Centrifugal fan
Centrifugal fan, centrifugal fan,
Propeller fan
Propeller fan, propeller fan,
Vane axial fan
Vane axial fan, vane axial fan, pitch control,
Damper
Damper, damper,
Filter
Filter, filter,
Air flow station
Air flow station, air flow station,
Humidifier
Humidifier, humidifier,
Htg/clg coil
Htg/clg coil, heating, cooling, coil,
Valve
Valve, valve,
Water flow meter
Water flow meter, water flow meter,
Pump
Pump, pump,
, chiller,
Cooling tower
Cooling tower, cooling tower,
Converter
Converter, converter,
Heat exchanger
Heat exchanger, heat exchanger, plate and tube,
Boiler
Boiler, boiler
,
Equipment
Equipment, equipment,
Starter
Starter, magnetic, starter,
VSD
VSD, VSD, variable speed drive,
Side to bottom pipe
Side to bottom pipe, pipe,
Side to bottom pipe, arrow
Side to bottom pipe, arrow, pipe,
Side to side pipe
Side to side pipe, pipe,
Side to side pipe, arrow
Side to side pipe, arrow, pipe,
Top to bottom pipe
Top to bottom pipe, pipe,
Top to bottom pipe, arrow
Top to bottom pipe, arrow, pipe,
Pipe flow arrow
Pipe flow arrow, pipe flow arrow,
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.
Duct, sgl line
Duct, sgl line, duct,
Duct, dbl line
Duct, dbl line, duct,
Return duct, sgl line
Return duct, sgl line, return duct,
Return duct, dbl line
Return duct, dbl line, return duct,
Supply duct, sgl line
Supply duct, sgl line, supply duct,
Supply duct, dbl line
Supply duct, dbl line, supply duct,
Return duct 2, sgl line
Return duct 2, sgl line, supply duct,
Return duct 2, dbl line
Return duct 2, dbl line, supply duct,
Supply duct extension, sgl line
Supply duct extension, sgl line, duct extension,
Supply duct extension, dbl line
Supply duct extension, dbl line, duct extension,
Return duct extension, sgl line
Return duct extension, sgl line, duct extension,
Return duct extension, dbl line
Return duct extension, dbl line, duct extension,
2-fan section, sgl line
2-fan section, sgl line, multi fan section,
2-fan section, dbl line
2-fan section, dbl line, multi fan section,
3-fan section, sgl line
3-fan section, sgl line, multi fan section,
3-fan section, dbl line
3-fan section, dbl line, multi fan section,
4-fan section, sgl line
4-fan section, sgl line, multi fan section,
4-fan section, dbl line
4-fan section, dbl line, multi fan section,
VAV box
VAV box, VAV box, variable air volume box,
DD-VAV box
DD-VAV box, DD-VAV box, double, duct, variable air volume box, VAV box, constant volume box, CV box,
Fan coil housing
Fan coil housing, fan coil housing,
Unit heater
Unit heater, unit heater,
Centrifugal fan
Centrifugal fan, centrifugal fan,
Propeller fan
Propeller fan, propeller fan,
Vane axial fan
Vane axial fan, vane axial fan, pitch control,
Damper
Damper, damper,
Filter
Filter, filter,
Air flow station
Air flow station, air flow station,
Humidifier
Humidifier, humidifier,
Htg/clg coil
Htg/clg coil, heating, cooling, coil,
Valve
Valve, valve,
Water flow meter
Water flow meter, water flow meter,
Pump
Pump, pump,
, chiller,
Cooling tower
Cooling tower, cooling tower,
Converter
Converter, converter,
Heat exchanger
Heat exchanger, heat exchanger, plate and tube,
Boiler
Boiler, boiler
,
Equipment
Equipment, equipment,
Starter
Starter, magnetic, starter,
VSD
VSD, VSD, variable speed drive,
Side to bottom pipe
Side to bottom pipe, pipe,
Side to bottom pipe, arrow
Side to bottom pipe, arrow, pipe,
Side to side pipe
Side to side pipe, pipe,
Side to side pipe, arrow
Side to side pipe, arrow, pipe,
Top to bottom pipe
Top to bottom pipe, pipe,
Top to bottom pipe, arrow
Top to bottom pipe, arrow, pipe,
Pipe flow arrow
Pipe flow arrow, pipe flow arrow,
The vector stencils library "HVAC ductwork" contains 55 duct and vent symbols of HVAC mechanical components. Use it for drawing HVAC ductwork system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control, and environmental control design in the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rect. duct, closed ends
Rect. duct, closed ends, straight duct,
Rect. duct, open 1 end
Rect. duct, open 1 end, straight duct,
Rect. duct, open both ends
Rect. duct, open both ends, straight duct,
Circ. duct, closed ends
Circ. duct, closed ends, straight duct,
Circ. duct, open 1 end
Circ. duct, open 1 end, straight duct,
Circ. duct, open both ends
Circ. duct, open both ends, straight duct,
Branch duct, rectangular
Branch duct, rectangular, branch duct,
Branch duct, circular
Branch duct, circular, branch duct,
Variable bend
Variable bend, variable bend, duct,
Miter bend
Miter bend, miter bend, duct,
Y junction
Y junction, Y junction, duct,
3 way junction
3 way junction, 3 way junction, three way junction, duct,
Junction 1
Junction 1, junction, duct,
Beveled junction, rect. duct, rect. branch
Beveled junction, rect. duct, rect. branch, beveled junction, duct,
Beveled junction, rect. duct, circ. branch
Beveled junction, rect. duct, circ. branch, beveled junction, duct,
Beveled junction, circ. duct, rect. branch
Beveled junction, circ. duct, rect. branch, beveled junction, duct,
Beveled junction, circ. duct, circ. branch
Beveled junction, circ. duct, circ. branch, beveled junction, duct,
Transition, rect. to rect.
Transition, rect. to rect., transitioning, reducing, duct,
Transition, rect. to circ.
Transition, rect. to circ., transitioning, reducing, duct,
Transition, circ. to rect.
Transition, circ. to rect., transitioning, reducing, duct,
Transition, circ. to circ.
Transition, circ. to circ., transitioning, reducing, duct,
Offset transition, rect. to rect.
Offset transition, rect. to rect., offset, transitioning, reducing, duct,
Offset transition, rect. to circ.
Offset transition, rect. to circ., offset, transitioning, reducing, duct,
Offset transition, circ. to rect.
Offset transition, circ. to rect., offset, transitioning, reducing, duct,
Offset transition, circ. to circ.
Offset transition, circ. to circ., offset, transitioning, reducing, duct,
Flexible connection, rect. duct
Flexible connection, rect. duct, flexible, connection,
Flexible connection, circ. duct
Flexible connection, circ. duct, flexible, connection,
Flexible connection 2, rect. duct
Flexible connection 2, rect. duct, flexible, connection,
Flexible connection 2, circ. duct
Flexible connection 2, circ. duct, flexible, connection,
Supply, rect. duct toward
Supply, rect. duct toward, supply, duct,
Supply, rect. duct away
Supply, rect. duct away, supply, duct,
Supply, rect. duct, elbow away
Supply, rect. duct, elbow away, supply, duct,
Supply, circ. duct toward
Supply, circ. duct toward, supply, duct,
Supply, circ. duct away
Supply, circ. duct away, supply, duct,
Supply, circ. duct, elbow away
Supply, circ. duct, elbow away, supply, duct,
Return, rect. duct toward
Return, rect. duct toward, return, duct,
Return, rect. duct away
Return, rect. duct away, return, duct,
Return, rect. duct, elbow away
Return, rect. duct, elbow away, return, duct,
Return, circ. duct toward
Return, circ. duct toward, return, duct,
Return, circ. duct away
Return, circ. duct away, return, duct,
Return, circ. duct, elbow away
Return, circ. duct, elbow away, return, duct,
Sliding damper, rect. duct
Sliding damper, rect. duct, sliding damper,
Sliding damper, circ. duct
Sliding damper, circ. duct, sliding damper,
Damper, ACD
Damper, ACD, damper,
Damper, BD
Damper, BD, damper,
Damper, FD/AD
Damper, FD/AD, damper,
Damper, MD
Damper, MD, damper,
Damper, SD/AD
Damper, SD/AD, damper,
Vert. duct, rect. duct toward
Vert. duct, rect. duct toward, vertical duct,
Vert. duct, rect. duct away
Vert. duct, rect. duct away, vertical duct,
Vert. duct, rect. duct, elbow away
Vert. duct, rect. duct, elbow away, vertical duct,
Vert. duct, circ. duct toward
Vert. duct, circ. duct toward, vertical duct,
Vert. duct, circ. duct away
Vert. duct, circ. duct away, vertical duct,
Vert. duct, circ. duct, elbow away
Vert. duct, circ. duct, elbow away, vertical duct,
VAV box
VAV box, VAV box, variable air volume box,
The vector stencils library "HVAC ductwork" contains 55 duct and vent symbols of HVAC mechanical components. Use it for drawing HVAC ductwork system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control, and environmental control design in the ConceptDraw PRO diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rect. duct, closed ends
Rect. duct, closed ends, straight duct,
Rect. duct, open 1 end
Rect. duct, open 1 end, straight duct,
Rect. duct, open both ends
Rect. duct, open both ends, straight duct,
Circ. duct, closed ends
Circ. duct, closed ends, straight duct,
Circ. duct, open 1 end
Circ. duct, open 1 end, straight duct,
Circ. duct, open both ends
Circ. duct, open both ends, straight duct,
Branch duct, rectangular
Branch duct, rectangular, branch duct,
Branch duct, circular
Branch duct, circular, branch duct,
Variable bend
Variable bend, variable bend, duct,
Miter bend
Miter bend, miter bend, duct,
Y junction
Y junction, Y junction, duct,
3 way junction
3 way junction, 3 way junction, three way junction, duct,
Junction 1
Junction 1, junction, duct,
Beveled junction, rect. duct, rect. branch
Beveled junction, rect. duct, rect. branch, beveled junction, duct,
Beveled junction, rect. duct, circ. branch
Beveled junction, rect. duct, circ. branch, beveled junction, duct,
Beveled junction, circ. duct, rect. branch
Beveled junction, circ. duct, rect. branch, beveled junction, duct,
Beveled junction, circ. duct, circ. branch
Beveled junction, circ. duct, circ. branch, beveled junction, duct,
Transition, rect. to rect.
Transition, rect. to rect., transitioning, reducing, duct,
Transition, rect. to circ.
Transition, rect. to circ., transitioning, reducing, duct,
Transition, circ. to rect.
Transition, circ. to rect., transitioning, reducing, duct,
Transition, circ. to circ.
Transition, circ. to circ., transitioning, reducing, duct,
Offset transition, rect. to rect.
Offset transition, rect. to rect., offset, transitioning, reducing, duct,
Offset transition, rect. to circ.
Offset transition, rect. to circ., offset, transitioning, reducing, duct,
Offset transition, circ. to rect.
Offset transition, circ. to rect., offset, transitioning, reducing, duct,
Offset transition, circ. to circ.
Offset transition, circ. to circ., offset, transitioning, reducing, duct,
Flexible connection, rect. duct
Flexible connection, rect. duct, flexible, connection,
Flexible connection, circ. duct
Flexible connection, circ. duct, flexible, connection,
Flexible connection 2, rect. duct
Flexible connection 2, rect. duct, flexible, connection,
Flexible connection 2, circ. duct
Flexible connection 2, circ. duct, flexible, connection,
Supply, rect. duct toward
Supply, rect. duct toward, supply, duct,
Supply, rect. duct away
Supply, rect. duct away, supply, duct,
Supply, rect. duct, elbow away
Supply, rect. duct, elbow away, supply, duct,
Supply, circ. duct toward
Supply, circ. duct toward, supply, duct,
Supply, circ. duct away
Supply, circ. duct away, supply, duct,
Supply, circ. duct, elbow away
Supply, circ. duct, elbow away, supply, duct,
Return, rect. duct toward
Return, rect. duct toward, return, duct,
Return, rect. duct away
Return, rect. duct away, return, duct,
Return, rect. duct, elbow away
Return, rect. duct, elbow away, return, duct,
Return, circ. duct toward
Return, circ. duct toward, return, duct,
Return, circ. duct away
Return, circ. duct away, return, duct,
Return, circ. duct, elbow away
Return, circ. duct, elbow away, return, duct,
Sliding damper, rect. duct
Sliding damper, rect. duct, sliding damper,
Sliding damper, circ. duct
Sliding damper, circ. duct, sliding damper,
Damper, ACD
Damper, ACD, damper,
Damper, BD
Damper, BD, damper,
Damper, FD/AD
Damper, FD/AD, damper,
Damper, MD
Damper, MD, damper,
Damper, SD/AD
Damper, SD/AD, damper,
Vert. duct, rect. duct toward
Vert. duct, rect. duct toward, vertical duct,
Vert. duct, rect. duct away
Vert. duct, rect. duct away, vertical duct,
Vert. duct, rect. duct, elbow away
Vert. duct, rect. duct, elbow away, vertical duct,
Vert. duct, circ. duct toward
Vert. duct, circ. duct toward, vertical duct,
Vert. duct, circ. duct away
Vert. duct, circ. duct away, vertical duct,
Vert. duct, circ. duct, elbow away
Vert. duct, circ. duct, elbow away, vertical duct,
VAV box
VAV box, VAV box, variable air volume box,
The vector stencils library "Registers, drills and diffusers" contains 47 shapes of rectangular, circular, linear and troffer air handling inlet/ outlet components, registers, drills and diffusers. Use it for drawing reflected ceiling plans and HVAC plans in the ConceptDraw PRO diagramming and vector drawing software extended with the Reflected Ceiling Plans solution from the Building Plans area of ConceptDraw Solution Park.
Rectangular inlet
Rectangular inlet, rectangular inlet,
Rectangular inlet, hidden
Rectangular inlet, hidden, rectangular inlet,
Rectangular inlet, flow arrow
Rectangular inlet, flow arrow, rectangular inlet,
Rectangular inlet, flow arrow, hidden
Rectangular inlet, flow arrow, hidden, rectangular inlet,
Circular inlet
Circular inlet, circular inlet,
Circular inlet, hidden
Circular inlet, hidden, circular inlet,
Circular inlet, flow arrow
Circular inlet, flow arrow, circular inlet,
Circular inlet, flow arrow, hidden
Circular inlet, flow arrow, hidden, circular inlet,
Rectangular outlet
Rectangular outlet, rectangular outlet,
Rectangular outlet, hidden
Rectangular outlet, hidden, rectangular outlet,
Rectangular outlet, flow arrows
Rectangular outlet, flow arrows, rectangular outlet,
Rectangular outlet, flow arrows, hidden
Rectangular outlet, flow arrows, hidden, rectangular outlet,
Circular outlet
Circular outlet, circular outlet,
Circular outlet, hidden
Circular outlet, hidden, circular outlet,
Circular outlet, flow arrows
Circular outlet, flow arrows, circular outlet,
Circular outlet, flow arrows, hidden
Circular outlet, flow arrows, hidden, circular outlet,
Grille diffuser, rectangular duct
Grille diffuser, rectangular duct, grille diffuser,
Grille diffuser, circular duct
Grille diffuser, circular duct, grille diffuser,
Return grille diffuser, rectangular duct
Return grille diffuser, rectangular duct, grille diffuser,
Return grille diffuser, circular duct
Return grille diffuser, circular duct, grille diffuser,
Supply grille diffuser, rectangular duct
Supply grille diffuser, rectangular duct, grille diffuser,
Supply grille diffuser, circular duct
Supply grille diffuser, circular duct, grille diffuser,
Linear return diffuser
Linear return diffuser, linear outlet, diffuser,
Linear return diffuser, hidden
Linear return diffuser, hidden, linear outlet, diffuser,
Linear supply diffuser
Linear supply diffuser, linear outlet, diffuser,
Linear supply diffuser, hidden
Linear supply diffuser, hidden, linear outlet, diffuser,
Linear return diffuser, flow arrows
Linear return diffuser, flow arrows, linear outlet, diffuser,
Linear return diffuser, flow arrows, hidden
Linear return diffuser, flow arrows, hidden, linear outlet, diffuser,
Linear supply diffuser, flow arrows
Linear supply diffuser, flow arrows, linear outlet, diffuser,
Linear supply diffuser, flow arrows, hidden
Linear supply diffuser, flow arrows, hidden, linear outlet, diffuser,
Troffer inlet / outlet
Troffer inlet / outlet, troffer inlet, troffer outlet, light fixture,
Troffer inlet / outlet, hidden
Troffer inlet / outlet, hidden, troffer inlet, troffer outlet, light fixture,
Troffer inlet, return diffuser
Troffer inlet, return diffuser, troffer inlet, light fixture,
Troffer inlet, return diffuser, hidden
Troffer inlet, return diffuser, hidden, troffer inlet, light fixture,
Troffer inlet, supply diffuser
Troffer inlet, supply diffuser, troffer inlet, light fixture,
Troffer inlet, supply diffuser, hidden
Troffer inlet, supply diffuser, hidden, troffer inlet, light fixture,
Troffer outlet, return diffuser
Troffer outlet, return diffuser, troffer outlet, light fixture,
Troffer outlet, return diffuser, hidden
Troffer outlet, return diffuser, hidden, troffer outlet, light fixture,
Troffer outlet, supply diffuser
Troffer outlet, supply diffuser, troffer outlet, light fixture,
Troffer outlet, supply diffuser, hidden
Troffer outlet, supply diffuser, hidden, troffer outlet, light fixture,
Circular outlet
Circular outlet, circular outlet, diffuser,
Circular outlet, hidden
Circular outlet, hidden, circular outlet, diffuser,
Grille
Grille, grille diffuser, grille,
Grille, hidden
Grille, hidden, grille diffuser, grille,
Grille (side)
Grille (side), grille diffuser, grille,
Grille (side), return diffuser
Grille (side), return diffuser, grille diffuser, grille,
Grille (side), supply diffuser
Grille (side), supply diffuser, grille diffuser, grille,

Interior Design. Registers, Drills and Diffusers — Design Elements

If you ever need to draw to create design interior using design elements, all necessary symbols can be taken from all of our numerous libraries, including Registers, Drills and Diffusers one, which contains 47 symbols.
This HVAC schematics sample depicts the house cool mode of central air pool heater. It was drawn on the base of the HVAC schematics in the post "Central Air Pool Heater" from the Nathan Stratton's blog.
"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 schematics example "Central air pool heater" was created using the ConceptDraw DIAGRAM diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC schematics
HVAC schematics, water flow meter, return duct, propeller fan, pipe flow arrow, pipe coil, air filter,
This HVAC schematics sample depicts the house cool mode of central air pool heater. It was drawn on the base of the HVAC schematics in the post "Central Air Pool Heater" from the Nathan Stratton's blog.
"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 schematics example "Central air pool heater" was created using the ConceptDraw DIAGRAM diagramming and vector drawing software extended with the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC schematics
HVAC schematics, water flow meter, return duct, propeller fan, pipe flow arrow, pipe coil, air filter,
The vector stencil library "HVAC ductwork" contains 63 duct and vent symbols.
Use it for drawing HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control, and environmental control design floor
plans and equipment layouts.
"Ducts are used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. These needed airflows include, for example, supply air, return air, and exhaust air. Ducts also deliver, most commonly as part of the supply air, ventilation air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.
A duct system is often called ductwork. Planning ('laying out'), sizing, optimizing, detailing, and finding the pressure losses through a duct system is called duct design." [Duct (HVAC). Wikipedia]
The vector stencils example "Design elements - HVAC ductwork" is included in HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC ductwork symbols
HVAC ductwork symbols, vertical duct, variable bend, duct, transitioning, reducing, duct, supply, duct, supply duct-section, straight duct, sliding damper, return, duct, offset, transitioning, reducing, duct, miter bend, duct, manual volume damper, louver opening, junction, duct, flexible, connection, fire damper with access door, fan and motor with belt guard, exhaust, return or outside air duct-section, damper, branch duct, beveled junction, duct, automatic volume damper, Y junction, duct, VAV box, variable air volume box, 3 way junction, three way junction, duct,
The vector stencil library "HVAC ductwork" contains 63 duct and vent symbols.
Use it for drawing HVAC system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control, and environmental control design floor
plans and equipment layouts.
"Ducts are used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. These needed airflows include, for example, supply air, return air, and exhaust air. Ducts also deliver, most commonly as part of the supply air, ventilation air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.
A duct system is often called ductwork. Planning ('laying out'), sizing, optimizing, detailing, and finding the pressure losses through a duct system is called duct design." [Duct (HVAC). Wikipedia]
The vector stencils example "Design elements - HVAC ductwork" is included in HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
HVAC ductwork symbols
HVAC ductwork symbols, vertical duct, variable bend, duct, transitioning, reducing, duct, supply, duct, supply duct-section, straight duct, sliding damper, return, duct, offset, transitioning, reducing, duct, miter bend, duct, manual volume damper, louver opening, junction, duct, flexible, connection, fire damper with access door, fan and motor with belt guard, exhaust, return or outside air duct-section, damper, branch duct, beveled junction, duct, automatic volume damper, Y junction, duct, VAV box, variable air volume box, 3 way junction, three way junction, duct,