Home Symbol library Industries HVAC & building services HVAC & building services
Air handling units, chillers and heat pumps, boilers and hot water, radiators and hydronics, ducts, dampers, diffusers and fan coils.
All 198 Air handling & ventilation units 31 Fan coils, splits & humidity control 36 Chillers, heat pumps & cooling towers 33 Boilers, hot water & solar thermal 25 Hydronic circuits 17 Radiators & underfloor heating 13 Ducts, dampers & VAV 27 Grilles, diffusers & filters 16
198 of 198 symbols
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Air handling & ventilation units 31
Air handling unit (AHU), modular Realistic Heat recovery unit (air-to-air) Realistic AHU water coil section (cutaway) Realistic Double-deck AHU with plate recovery Realistic AHU fan section (cutaway) Realistic AHU bag-filter section (cutaway) Realistic Mixing box with dampers Realistic Door air curtain Realistic Ceiling heat recovery ventilator (4 ports) Realistic Crossflow plate recovery unit (cutaway) Realistic Rotary heat recovery wheel Realistic High-volume low-speed ceiling fan (HVLS) Realistic Roof centrifugal fan, horizontal discharge Realistic Roof exhaust fan with hood and gravity louvres Realistic Low-profile roof exhaust fan (dome) Realistic Rooftop packaged unit Realistic Air handling unit by sections ISA-101 +3 Cross-flow air-to-air heat recovery unit ISA-101 +3 Packaged rooftop unit with ducts ISA-101 +3 Air handling unit (AHU) ISA-101 +2 Fan coils, splits & humidity control 36
Fan-coil unit Realistic 4-way ceiling cassette (bottom view) Realistic Portable industrial dehumidifier Realistic Desiccant rotor dehumidifier Realistic Industrial evaporative air cooler Realistic Floor console fan coil Realistic Ducted ceiling fan coil Realistic Electrode steam humidifier Realistic Ultrasonic humidifier with mist nozzle Realistic Gas radiant tube heater Realistic Wall split indoor unit (section) Realistic Hot-water unit heater Realistic Desiccant wheel dehumidifier with regeneration heater ISA-101 +3 Floor-standing fan coil unit ISA-101 +3 Steam humidifier with cylinder and duct distributor ISA-101 +3 Ceiling cassette fan coil ISA-101 +2 Ducted fan coil ISA-101 +2 Wall-mounted indoor unit (split) ISA-101 +2 Outdoor condensing unit ISA-101 +2 Chillers, heat pumps & cooling towers 33
Outdoor heat pump unit Realistic Absorption chiller (LiBr-water) Realistic Air-cooled chiller with V-coils Realistic Modular air chiller with hydraulic kit Realistic Water-cooled chiller (shell and tube) Realistic Closed-circuit cooling tower Realistic Open crossflow cooling tower Realistic Round counterflow cooling tower Realistic V-type dry cooler Realistic Heat pump water heater with tank Realistic Indoor hydro unit with DHW tank Realistic Air-to-water monobloc heat pump Realistic Water-to-water heat pump skid Realistic Monobloc air-to-water heat pump ISA-101 +3 Ground-source heat pump with borehole field ISA-101 +3 Water-cooled screw chiller ISA-101 +3 Air-cooled water chiller with fans ISA-101 +3 Two-cell cross-flow cooling tower ISA-101 +3 Boilers, hot water & solar thermal 25
Wall-hung boiler Realistic Three-boiler wall condensing cascade Realistic Floor condensing boiler (cutaway) Realistic Floor-standing gas boiler with burner Realistic Wood-log gasification boiler Realistic Horizontal DHW storage tank on saddles Realistic Vertical stainless DHW storage tank Realistic Double-wall insulated chimney Realistic Fabric pellet silo with frame Realistic Solar thermal collectors on pitched roof Realistic Solar pump station with expansion vessel Realistic Thermosyphon solar water heater Realistic Evacuated-tube solar collector Realistic Electric storage water heater Realistic Instantaneous gas water heater Realistic DHW storage tank with solar coil and pump station ISA-101 +3 Wall-hung condensing gas boiler ISA-101 +3 Flat-plate solar thermal collector on roof ISA-101 Hydronic circuits 17
In-line air and dirt separator Realistic Water pressure booster set Realistic Horizontal insulated buffer tank Realistic Buffer tank with soft insulation jacket Realistic Floor-standing expansion vessel Realistic Round diaphragm expansion vessel Realistic Ultrasonic heat energy meter Realistic Brazed plate heat exchanger Realistic Heat exchanger substation skid Realistic Hydraulic separator (low-loss header) Realistic Heating manifold, 4 circuits Realistic Mixing group with 3-way valve and pump Realistic In-line pump with vertical motor Realistic Hydronic pump station (duty/standby) Realistic Twin-head in-line pump Realistic Buffer tank with insulation and four connections ISA-101 Diaphragm expansion vessel ISA-101 Radiators & underfloor heating 13
Column radiator Realistic Baseboard convector Realistic Trench convector with grille Realistic Underfloor heating manifold cabinet Realistic Aluminium element radiator Realistic Steel panel radiator Realistic Towel warmer radiator Realistic Underfloor heating floor section Realistic Underfloor heating manifold with actuators ISA-101 +3 Panel radiator with thermostatic valve ISA-101 Ducts, dampers & VAV 27
Rectangular duct with damper Realistic Flexible canvas connector between ducts Realistic Duct-mounted water coil Realistic Barometric relief damper with counterweights Realistic Iris damper with lever Realistic Round butterfly damper with actuator (cutaway) Realistic Rectangular 90° elbow with turning vanes (cutaway) Realistic Gored round 90° elbow Realistic Fire damper with fusible link and actuator Realistic Insulated flexible duct with clamps Realistic Electric duct heater Realistic Rectangular sheet-metal duct with flanges Realistic Rectangular duct transition (reducer) Realistic Spiral-wound round duct with coupling Realistic Baffle duct silencer (cutaway) Realistic Rectangular duct tee with branch damper Realistic Round wye (Y) branch Realistic VAV terminal unit with reheat coil Realistic VAV box with damper and reheat coil ISA-101 +3 Air damper ISA-101 Motorized air damper ISA-101 +2 Fire damper ISA-101 Grilles, diffusers & filters 16
Ceiling diffuser with plenum Realistic Round cone diffuser (bottom view) Realistic Linear slot diffuser with plenum Realistic Square four-way ceiling diffuser Realistic Swirl ceiling diffuser Realistic Activated carbon canister filter bank Realistic HEPA terminal housing with perforated diffuser (section) Realistic Pleated panel air filter Realistic V-bank high-efficiency filter (F9) Realistic Double-deflection supply grille Realistic Return air grille with fixed 45° blades Realistic Gooseneck intake with bird screen Realistic Weather louvre with bird screen Realistic Adjustable long-throw jet nozzle Realistic Square ceiling diffuser ISA-101 Louvre grille ISA-101
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ISA-101 flat symbols use grey for the equipment and keep colour for state only (green running, grey stopped, red fault, orange P2, yellow no feedback, blue manual). Each state is a separate file, ready to map to a multi-state object.
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