Air Conditioning Duct Work

Conditioned air is generated by the AC unit, AHU, FCU, package AC or ducted air conditioner. This air enters the supply air duct for distribution.

Supply air ducts carry cooled air from the HVAC equipment to different areas of the building. The air is delivered through supply air diffusers, slot diffusers, linear diffusers or air grilles.

Return air ducts collect indoor air from the occupied space and send it back to the HVAC unit for filtration and cooling.

Fresh air ducts bring outdoor air into the HVAC system, while exhaust air ducts remove stale air, smoke, heat or contaminants from specific areas.

Diffusers and grilles control how air enters or leaves a room. Proper diffuser and grille placement helps maintain room comfort and balanced airflow.

Duct air balancing ensures each room receives the required airflow. Proper air balancing reduces hot spots, poor airflow, noise and uneven cooling.

Rectangular ductwork is commonly used in commercial air conditioning systems and false ceiling HVAC layouts.

Round ductwork offers smooth airflow and is used in many ventilation and ductwork applications.

Spiral ductwork is often used in exposed ceiling HVAC systems, commercial interiors and industrial ventilation.

Flexible ductwork is used for short duct connections between main ducts and diffusers.

Sheet metal ductwork is widely used for AC duct installation in commercial and industrial HVAC projects.

GI ductwork, also called galvanized ductwork, is commonly used for HVAC ducting because of its durability and strength.

Stainless steel ductwork is used in areas where hygiene, corrosion resistance or special application needs are important.

Aluminium ductwork is lightweight and suitable for selected HVAC and ventilation applications.

Insulated ductwork helps control heat gain, condensation and energy loss in air conditioning systems.

Acoustic lined ductwork helps reduce duct-borne noise and improve indoor acoustic comfort.

Low pressure ductwork is used in HVAC systems with lower airflow pressure requirements.

Medium pressure ductwork is used where moderate airflow pressure is required.

High pressure ductwork is used in HVAC systems that require higher static pressure and longer air distribution routes.

Commercial ductwork supports cooling and ventilation for offices, shops, lobbies, common areas and service zones.

Air conditioning ductwork for office buildings provides supply air, return air and fresh air movement for workspaces and meeting rooms.

HVAC ductwork for hospitals supports controlled airflow, ventilation and comfort in rooms, waiting areas and service spaces.

AC ductwork for hotel HVAC systems supports guest rooms, corridors, lobbies, banquet halls and service areas.

Ductwork for shopping mall air conditioning helps distribute air across retail zones, common areas and back-of-house spaces.

Ductwork for restaurant HVAC systems supports air conditioning, exhaust, fresh air and kitchen ventilation requirements.

Ductwork for showroom air conditioning helps maintain clean interiors and uniform cooling.

Home AC ductwork and residential ductwork are used for ducted air conditioning and central AC systems.

Air conditioning ductwork for factories supports cooling, ventilation and process air movement.

Ductwork for warehouse ventilation helps manage airflow and indoor air movement in large storage spaces.

Cleanroom ductwork requires careful design, sealing, filtration coordination and controlled air movement.

Ductwork for data center cooling helps manage airflow for equipment rooms and technical spaces.

Ductwork for pharmaceutical HVAC supports controlled environments, fresh air, exhaust and pressure balance.

Central AC ductwork distributes conditioned air from central HVAC equipment to multiple spaces.

Cooling load helps determine the required airflow and duct size for each room.

CFM requirement defines how much air must be supplied to each space.

Duct size calculation is done based on airflow, velocity, pressure drop and available space.

Air velocity affects noise, pressure drop and comfort. Proper velocity selection is important for efficient ductwork design.

Static pressure indicates the resistance against airflow in the duct system.

Pressure drop occurs due to duct length, bends, dampers, filters, diffusers and fittings.

A proper duct route reduces unnecessary bends, long runs and airflow restrictions.

Too many bends and transitions can increase pressure drop and reduce airflow.

Supply and return air balance is important for comfort and HVAC performance.

Duct velocity, acoustic lining, flexible connectors and equipment location help control noise.

Duct insulation is required to reduce heat gain, condensation and energy loss.

Access doors, service space and reachable duct sections should be planned for cleaning and inspection.

Duct insulation helps protect conditioned air from heat gain and reduces energy loss.

Insulated ductwork prevents warm surrounding air from affecting cooled air inside the duct.

Duct insulation helps prevent condensation on duct surfaces, especially in humid conditions.

Proper insulation reduces cooling loss and improves HVAC energy performance.

Some insulation materials and acoustic duct lining help reduce duct-borne noise.

Common duct insulation materials include elastomeric insulation, glass wool, rock wool, nitrile rubber and other HVAC insulation materials depending on project requirement.

Aluminium foil facing or cladding protects insulation and improves durability.

Insulation thickness is selected based on duct location, temperature difference, humidity, project specification and energy requirement.

Indoor ducts and outdoor ducts may need different insulation and cladding protection based on exposure and site conditions.

Duct leakage inspection helps identify air loss and damaged duct joints.

Duct cleaning removes dust, debris and buildup from the ductwork system.

Insulation inspection helps identify damaged insulation, loose cladding or condensation risk.

Dampers should be checked for proper operation and airflow adjustment.

Diffuser and grille cleaning improves appearance and airflow.

Flexible duct inspection helps identify kinks, damage, sagging or air leakage.

Duct supports and hangers should be checked for safety and alignment.

Airflow testing helps detect poor airflow, blockage or balancing issues.

Zenvent Engineering provides ductwork preventive maintenance and AMC service for commercial buildings, factories, hotels, hospitals, malls, offices and HVAC facilities.

Ductwork distributes air through ducts, while ductless AC systems cool rooms directly without large ducts.

Ductwork carries air, while refrigerant piping carries refrigerant between indoor and outdoor AC units.

Ductwork moves air, while chilled water piping moves chilled water for cooling coils and HVAC equipment.

A ducted AC uses ductwork to distribute air, while a ductless split AC supplies air directly from the indoor unit.

Central AC ductwork distributes air from centralized equipment, while VRF systems use refrigerant piping to connect multiple indoor units.

GI ductwork is rigid and durable, while flexible ductwork is used for short final connections.

Rectangular ducts fit well in false ceilings, while round ducts often provide smoother airflow and are common in exposed or industrial layouts.

We provide AC ductwork design based on cooling load, airflow CFM, duct layout, pressure drop and comfort requirement.

Our duct fabrication service includes GI duct fabrication, sheet metal ductwork, duct fittings, transitions, elbows and reducers.

We provide AC duct installation for offices, hospitals, hotels, malls, factories, restaurants, showrooms and residential buildings.

We provide duct insulation to reduce heat gain, condensation and energy loss.

Duct leakage testing helps confirm sealing quality and system efficiency.

Duct sealing helps reduce air leakage and improve HVAC performance.

Duct air balancing adjusts airflow to match room-wise cooling requirements.

Duct cleaning helps remove dust, debris and buildup from the air distribution system.

We repair damaged ducts, air leakage, loose supports, damaged insulation and poor airflow issues.

Old, damaged or inefficient ductwork can be replaced with properly designed new ductwork.

Our commercial ductwork services are suitable for office buildings, malls, hotels, hospitals, restaurants and showrooms.

Our industrial ductwork services are suitable for factories, warehouses, pharmaceutical facilities, cleanrooms and ventilation systems.

Zenvent Engineering provides AC ductwork AMC service for inspection, cleaning, leakage checking, insulation inspection and airflow support.