Tools to estimate solar position, solar path, and solar radiation. Name of the company whose logo is on the chart 20 Sheet Count Black White Psychrometric Chart Front 12 HD1003 HDPsyChart STANDARD. Download our demo version of PsyFunc Psychrometric Chart program PsycPro Fully functional 30 day trial. PsycPro is a psychrometric. Download Update. Star Update. Star. Download the. free trial version below to get started. Double click the downloaded file. Update. Star is compatible with Windows platforms. Update. Star has been tested to meet all of the technical requirements to be compatible with. Windows 1. 0, 8. 1, Windows 8, Windows 7, Windows Vista, Windows Server 2. Windows. XP, 3. 2 bit and 6. Simply double click the downloaded file to install it. Update. Star Free and Update. Star Premium come with the same installer. Update. Star includes support for many languages such as English, German, French, Italian, Hungarian, Russian and many more. You can choose your language settings from within the program. Elite Software Chvac. Features. Calculates Peak Heating Cooling Loads Determines Building Tonnage and Room CFM Requirements, and Runout Duct Sizes Uses either the RTS or CLTD calculation method Chvac complies with the ANSIASHRAEACCA Standard 1. Computes CFM Air Quantities With Psychrometrics Calculates from Manually Entered Data or Directly from Floor Plans Created with Drawing Board sold separately Imports and exports gb. XML files. New Allows Different Indoor Conditions for each Room Links with Energy Audit Program. Links with Psy. Chart program. The Psy. Chart program can import Chvac system data directly into its Air Handler Model window. Links with HVAC Solution program. Transfers data to the Energy. Pro and e. QUEST programs more on using e. QUEST with ChvacAllows 3. Walls, 3. 0 Windows, and 1. Roofs per Room Automates Compliance with ASHRAE Standard 6. Calculates in both Metric and English Units Converts any project from English to Metric units and vice versa Allows Simultaneous Infiltration and Ventilation Calculates Runout and Main Trunk Duct Sizes Selects Equipment from ARIGAMA Databases Allows Virtually Unlimited Number of Rooms Rooms May be Optionally Grouped Under VAV Boxes Prints Numerous Color Pie Charts and Bar Graphs Creates Spreadsheet Output File Overview. Chvac quickly and accurately calculates the maximum heating and cooling loads for commercial buildings. The cooling loads can be calculated with either the CLTD method or the new RTS Radiant Time Series method. The program allows an unlimited number of rooms which can be grouped into as many as 1. Chvac automatically looks up all cooling load and correction factors necessary for computing loads. In addition, it can look up outdoor design weather data for over 2. There is also provision for editing the weather data as well as adding data for other cities. Comprehensive reports list the general project data, detailed room loads, air handler summary loads, outside air loads, total building loads, building envelope analysis, tonnage requirements, CFM air quantities, chilled water flow rates if applicable, and complete psychrometric data with entering and leaving coil conditions. Other outstanding features include ASHRAE Standard 6. Five Versions Available There are five versions of the Chvac program 2 room capacity 2. Keep in mind that a room is a single space, and that rooms can be grouped into air handling systems which in turn make up the building. Rooms can optionally be grouped under vav boxes as well zones. This allows Chvac to compute diversified peak loads at four levels in one run of the program room, vav box zone, air system, and total building. The maximum number of air handling systems allowed for any version is the number of rooms allowed or 1. Each Chvac version is exactly the same with the exception of the room capacity and price. However, there is a generous upgrade policy. If at any time you decide to obtain a version of Chvac with greater capacity than the original one you obtained, all that is required is to pay the difference in price between the two versions. Advanced Features Chvac contains many, many advanced features. Here are just a few of its capabilities. Calculates Peak Heating and Cooling Loads. Calculates Both Heating Cooling CFM Requirements. Calculates Runout and Main Trunk Duct Sizes. Automates Compliance with ASHRAE Standard 6. Provides Overall Building Envelope Report. Creates Spreadsheet File with Calculated Results. Performs Complete Psychrometric Analysis. Prints Bar Graphs and Exploded Pie Charts. Exterior Shading Handles Overhangs, Fins, Glass Tilt. Uses Exact ASHRAE RTS or CLTD Procedures. Built in Design Weather Data for Hundreds of Cities. Analyzes Up to 1. Months Per Calculation. Calculates 2. 4 Hours per Design Day. Allows Unlimited Number of Rooms per Project. Rooms May Be Grouped Under 1. Air Handlers. Rooms May Be Optionally Grouped Under VAV Boxes. Allows 1. 00 Walls, 1. Windows, and 1. 00 Roofs per Room. Allows Simultaneous Infiltration and Ventilation. Allows Different Summer and Winter Air Rates. Allows Different Indoor Conditions for each Room. Allows 2. 0 Master Roof Types, 2. Master Wall Types, 2. Master Partition Types, and 5. Master Glass Types. Provides a User Defined Library of Custom Materials. Provides a List of your Favorite Materials. Allows Up to 1. 0 Internal Operating Load Profiles. Allows Full 3. 60 Degree Wall and Glass Orientations. Allows Glass to be titled from 0 to 1. Allows for Roof and Wall Color Effects. Provision for Both VAV and Constant Volume Systems. Proper Handling of Return Air Plenum Loads. Accounts for People Diversity in Total Building Load. Computes Supply Fan Horsepower and Heat Gains. Accounts for Both Draw thru and Blow thru Fans. Calculates Reheat Requirements if Necessary. Computes Supply and Return Duct Gains and Losses. Allows Direct Specification of Supply CFM Quantities. Allows Specification of Minimum Supply Air Quantities. Allows Heating Only, Cooling Only, or Both. Excess Supply Air Can be Handled as Reheat, Reserve Capacity, or by Adjusting the Leaving Coil Conditions. Leaving Coil Conditions Can be Specified with a Desired Dry Bulb Temperature or a Relative Humidity. Calculates Chilled and Hot Water Coil Flow Rates. Allows for Pretreated Outside Air. Calculates benefits of Heat Recovery Ventilators HRV for heating and cooling. Allows Heating and Cooling Safety Factors. Lighting Equipment Watts along with No. People can be Entered Directly or on a Per Square Foot Basis. Selects Equipment from the ARIGAMA Databases. Creates Custom Sales Proposals. Creates Spreadsheet Output File Calculation Method. Chvac performs cooling calculations using either the CLTD method or the new RTS Radiant Time Series method. The RTS method is described in the latest edition of the ASHRAE Handbook of Fundamentals, while the CLTD method is from earlier editions of the Handbook. The RTS method is especially accurate because it calculates the delayed effect of radiant heat gains during each of the past 2. That means, for example, that the program gives proper consideration to the effect of an external shading device that shades a window in the morning in a room that peaks in the afternoon. The CLTD method, on the other hand, uses exact table values from the Handbook where possible, which means that you can verify the results by hand. You can actually switch back and forth between RTS and CLTD for any project. All you have to do to switch between the two methods is to enter equivalent Master Data definitions for roofs, walls and glass and then change the Cooling Calculation Method input to the other method. Program Input. Chvac is very easy to use and includes a specific dropdown help window for virtually every input, including a list of choices where appropriate. The program performs extensive checks on the data you enter and alerts you to any problems that it finds, such as a wall having too much window area, or a leaving coil temperature for an air handler outside of the expected range. Five types of data are requested general project data, outdoor design data, building material data, air handler data, and specific room data. The general project data includes the project and client name, designer, building opening and closing hours, internal operating load schedules, and any desired safety factors. The outdoor design data includes the summer and winter outdoor design conditions automatically looked up for you if a city reference is given and the desired ventilation and infiltration rates. The building material data includes the definition of master building material types for roofs, walls, partitions, glass sections, and exterior shading. A user defined material library is available for saving the data on common material types. The air handler data includes the fan and terminal type, the desired heating and cooling supply air temperatures and data for duct heat gains and losses. The room data includes the room name, floor length and width, number of people, equipment watts, lighting watts, external shading data, and specific roof, wall, partition, floor and glass data. Program Output. Chvac provides several different types of reports which can be selectively previewed on screen or printed.