With Right-Suite Commercial, a designer can draw a building on screen and automatically have the heating and cooling loads along with duct sizing calculated in a matter of seconds.

When you're designing commercial hvac systems, do you wish that you could just sketch a floor plan, punch a button and get a duct layout with the entire sizing done? Using new Right-Suite Commercial¿ from Wrightsoft Corporation, a designer can draw a building on screen and automatically have the heating and cooling loads along with duct sizing calculated in the matter of seconds.

The fully integrated program automatically implements the four major steps in the hvac design process. Beginning with either CAD or manual floor-plan input, it automatically carries out ASHRAE-based load calculations, ASHRAE-based duct sizing, and finally, provides an automatically generated proposal. This software will convert any commercial building floor plan into a system proposal complete with a parts list.

Designers are able to use this program in a CAD environment, without purchasing a CAD program. You can read in a CAD floor plan, and then write a fully annotated new hvac system layer back into the original CAD drawing. Designers will use a new graphic drag-and-drop floor plan tool to describe the thermal spaces in the building. Included in the program are HVAC-Shapes', a family of smart symbols that automatically do their own takeoff, and do their own ASHRAE loads. This commercial software can read and write AutoCad', DWG and DXF files.

Load calculations are handled by an optimized 24 hour by 12 month ASHRAE Handbook of Fundamentals CLTD method. Usage scenarios combine all building usage information under a single name, such as office, warehouse, church and 27 other usage types. These scenarios include 24 hour schedules and users can invent their own for regional and special types. Designers can drag one room object onto the drawing area, and in turn, all the internal gains, occupancy, ventilation, etc. are automatically included in the load calculations.

Loads are automatically transferred to the duct sizing and layout engine, which can perform a complete range of calculation methods, including equal friction, modified equal friction, constant velocity, static regain, and as-built systems, for sheet metal, metal flex, vinyl flex, and fiberglass ducts in round, rectangular, or oval shapes. Under a license with ASHRAE, ASHRAE's 220 duct fitting database enables designers to preset their own preferences for fitting types in over 60 common situations such as elbows, takeoffs, reducers, etc.

At the end of the automated design chain is a proposal generator, which includes a parts takeoff engine. Using automated takeoff rules, it compiles a bill of materials for duct components, equipment, controls, etc. This bill of materials is pulled out of the proposal generator's user-customizable parts database. Program users can load the database with their own parts pricing and descriptions. In addition, this program will generate lists of specific manufacturer parts for accurate cost estimates.

This hvac system design software is designed to be useable almost anywhere in the world. Using ASHRAE's International weather database with over 130 countries and over 3,000 cities, the program can be used in a full metric environment, or in U.S. units. Designers can switch back and forth between units, as a means of translating U.S. to Metric and vice versa. Northern and Southern hemisphere latitudes are automatically handled, as are time of day peaks for local time.