Published on Jul 3, 2009 Watch unique presentation for HVAC Beginers. Aclaimed and recommneded by professionals. BUCC (HVAC)-MR. NEERAJ SHUKLA WHAT IS HVAC ?  AC- AIR CONDITIONING Few People think that HVAC is all about Luxury , Waste of money It is the RIGHT of every individual to live in comfort and HVAC is committed for it. HVAC serves the Industrial Segment to great extent.  AUDITORIUMS & THEATRES  HOTELS AND RESTAURENTS  AND MANY MORE………!! WHAT IS TR ? 1 TR IS AMOUNT OF HEAT TO BE EXTRACTED FROM THE ATMOSPHERE FOR MELTING ONE METRIC TON OF ICE IN ONE TON OF REFRIGERATION (TR) EQUALS TO 12000 BTU/HR. OR WHAT WE ARE GOING TO  FUNCTIONS OF HVAC  BASIC OPERATING CYCLE  CLASSIFICATION OF AC SYSTEMS  ABOUT VARIOUS AC SYSTEMS  STEPS INVOLED IN DECIDING THE  ABOUT HEAT LOAD  TYPES OF COMPRESSORS  ABOUT AC EQIPMENT

 ABOUT AIR DISTRIBUTION SYSTEM  RECENT TRENDS IN HVAC INDUSTY  CONTROL OF AIR TEMPERATURE.  CONTROL OF MOISTURE CONTENT IN THE  PROPER AIR MOVEMENT.  TO HOLD THE AIR CONTAMINATION (CHILLED WATER AIR WASHER SYSTEM)  CALCULATION OF COOLING LOAD  SELECTION OF TECHNO-ECONOMICAL SYSTEM  SELECTION OF EQUIPMENT  DESIGNING AIR DISTRIBUTION SYSTEM  DESIGNING WATER DISTRIBUTION SYSTEM  EVALUATION OF SYSTEM TO BE USED IMPORTANT FACTORS FOR CALCULATION OF COOLING LOAD REQUIREMENT PHYSICAL DIMENSION OF SPACE INSIDE ROOM DESIGN CONDITIONS GLASS AREA EXPOSED TO SUN INFILTRATION OF OUTSIDE AIR  BUDGET OF CLIENT  NEED OF CLIENT  USE OF SPACE  DEPTH OF BEAM  LOCATION OF COLUMNS  SPACE FOR SERVICING  AIR COOLED TYPE  WATER COOLED TYPE  R-22 (phase out on 2040)  FAN COIL UNIT  AHU IS THE EQUIPMENT WHICH PUMPS THE DESIGNED

QUANTITY OF DEHUMIDIFIED AIR TO RESPECTIVE AREAS BY MEANS OF DUCTING.  BASIC AIR HANDLING UNIT (AHU) CONSISTS OF:- a)FAN SECTION WITH CENTRIFUGAL FAN AND b)COIL SECTION WITH COIL c)FILTER SECTION WITH FILTERS  TYPES OF AIR HANDLING UNITS (AHU) a) SINGLE SKINNED AHU b) DOUBLE SKINNED AHU  DEPENDING ON SPACE AVAILABILITY FOR AHU , THE AHUs ARE CLASSIFIED AS UNDER:- c) CEILING SUSPENDED UNIT  TYPE OF AHU DEPENDING UPON LOCATION OF FAN:- a) DRAW THROUGH TYPE:- FAN IS LOCATED AFTER COOLING COIL b) BLOW THROUGH TYPE:- FAN IS LOCATED BEFORE COOLING COIL  FOLLOWING ACCESSORIES CAN BE INCORPORATED IN AHU AS PER SYSTEM f) PLENUM FOR FINE AND HEPA FILTERS g) HEAT RECOVERY WHEEL  NATURAL DRAFT TYPE  INDUCED DRAFT TYPE  FORCED DRAFT TYPE TYPES OF COMMONLY USED PUMPS  POLYURETHANE FOAM SECTIONS  FIBRE GLASS WOOL TYPES OF GRILLS AND SCHEMATIC DIAGRAM FOR CHILLED

SCHEMATIC DIAGRAM FOR CONDENSOR APPLICATIONS OF VENTILATION SYSTEM  CAR PARK AT BASEMENTS TYPES OF FANS USED FOR  AXIAL FLOW FANS:- b) TUBE AXIAL TYPE c) VANE AXIAL TYPE  GLOBAL AWARENESS TOWARDS ENERGY SAVINGS IS REFLECTED IN HVAC INDUSTRY.ac unit direct  ENERGY EFFICIENT EQUIPMENT ARE NEED OFbest way to clean outside ac unit  HEAT RECOVERY WHEELSac window unit removal  THERMAL STORAGE SYSTEM HVAC IS COMMITTED TO : PROVIDE MAXIMUM CONFORT TO HUMAN BEING  TO SATISFY THE INDUSTRIAL NEEDSSEMCO > About Us > semco key facts SEMCO is a unique indoor environment products manufacturer serving the key disciplines of air distribution, noise abatement, temperature, and humidity control in the commercial and industrial building markets.

Company was founded in Salisbury, Missouri (1963) SEMCO’s corporate office and test facility is located in Columbia, Missouri. The company operates three manufacturing facilities in the following locations: In addition, SEMCO also has an extensive, Columbia, Missouri based, ASHRAE 84 compliant research and development facility dedicated to the development of new products for the 21st Century and beyond. Our sales distribution base consists of not only select, highly profitable distributors and agent/representative franchises with exclusive geographical territories, but also original equipment manufacturers. 2005 R&D Magazine’s "Top 100 Innovative Products" Award: Revolution® Active Desiccant-Vapor Compression Hybrid Rooftop Unit. Introduces the FP Series air handling unit (1978) Develops a 3 angstrom molecular desiccant for use in energy recovery wheels (1987) Introduces the first unitary fresh air ventilator – the FV series (1993) Launches first custom duct and acoustical estimating software program – Microlink™ (1993)

Introduces media free sound attenuators (1996) Develops AQFlow® a real-time airflow measuring system for the FV series (1998) Develops first intelligent ventilation system - the Pinnacle® system (1999) Introduces first SuperSeal™ duct system (2002) Launches AVRON46® antimicrobial coating (2003) Develops next generation of self-sealing gasketed product - SuperSeal Plus™ (2004) Launches Revolution® active desiccant-vapor compression hybrid unit (2005) Launches ASCENDANT™ active desiccant conventional cooling hybrid (2015) Launches NEUTON™ controlled chilled beam pump module (2015) Wins AHR Expo 2016 Innovation Awards for NEUTON™ (Plumbing Category) and ASCENDANT™ (Indoor Air Quality Category) SEMCO is part of the Fläkt Woods Group, a leading player in energy-efficient Air Climate for buildings and Air Movement for Industry with a unique range of products for ventilation, air treatment and air diffusion improving indoor air quality and operating costs.