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TRACE™ 700 - Under Construction

1. 5 6 Selecting and assigning non sequential rooms 5 7 Creating a zone within a system sssssssssssss 5 8 Creating a new ZONE 5 8 iv Contents TRACE 700 Getting Started e CDS PRMOO2 EN Changing the name of the zone n en 5 8 Assigning rooms to a zone 5 9 Viewing estimated airflow and load values 5 9 Selecting and assigning sequential rooms 5 10 Energy and Economic Analysis Tutorial Chapter 6 Creating Plants Plant configurato Nsei turd tugetes rn beet date ads 6 2 Configuration worksheet sssssssssssseese 6 3 Creating a new cooling plant 6 3 Creating a new heating plant 6 4 Cooling Equipment worksheet Heating Equipment worksheet Base Utility Misc Accessory worksheet 6 8 Base utilities defined nen 6 8 Miscellaneous accessories defined 6 8 Creating a base utility eenennen 6 8 Chapter 7 Assigning Systems to Plants Coll ASSIGMIMENTS uestes dcs ett eed et hu d nah 7 2 Assigning heating coils een 7 3 Non sequential coils sss 7 3 All coils in a system 7 3 Assigning cooling coils One coil at a time Chapter 8 Defining Economics Economic information sssssss Entering economic parameters Installed costs and maintenance expenses 8 4 Sulla Mc a neo
2. Aae fizo Tyga Meteroriogeal Yew TMZ Typical Meter eninge Yont mal Test Relerence Yew 7 TAN 1982 95 CEC Energy Ei DUE wa 1988 CEC Eresqgy EM Store CEC Mb ny pope Sund CTZ Je mo TRACE 6 S este T Fer Hob press Ft um TRACE 700 Getting Started e CDS PRM002 EN Creating Rooms TRACE 700 defines a room as the smallest space for which it can calculate a heating or cooling load The space may be a large open plan office that occupies the entire floor of a building or it may be a conference room separated from adjacent spaces by interior dividers Commonly the dimensions of a room are defined by surfaces that contribute to heat transfer characteristics In this chapter you will learn how to use the Create Rooms worksheets to create and define the various small spaces of a building Ready to start Turn the page CDS PRMOO2 EN TRACE 700 Getting Started Creating Rooms 3 1 Floor plan Here is the floor plan that the architect provided for Washington Elementary School The building is laid out in a plus shape with three intersecting hallways We created a project file that uses the architect s naming convention for areas of the building In TRACE 700 you can use any alphanumeric phrase to name rooms systems and zones 10 50 N dp 120 Storage West Hallway 290 Music Room I 50 2 45 45 45 C45 70 100 7 40 40
3. Noctem Power Company Unity E eme cons senn z mum D x esther Power Comparys leche demand Northem Power Company Gn Tectia Norme Power 8 6 Defining Economics TRACE 700 Getting Started e CDS PRM002 EN Utility rates Recurring and additional costs In this section you enter one time costs that occur during the study life In most cases one alternative will have a different useful life than the other Using this section you can account for having to replace the less durable equipment at the end of its useful life As an example we will anticipate spending 30 percent of the installed cost in year 15 Click Add Cost under Recurring Additional Depreciable Cost Enter 1 95 and select ft2 for the units Specify 15 as the Year cost incurred PB WN Enter 15 years as the duration of the Economic life and also as depreciation life taxes Depr life taxes 5 Click Apply and compare your screen to ours Economic entries are now completed Present value yearly cash flows and payback are some of the results from the economic calculation Equgmentnstaiedcot END yw Revenue panaty bh s s Youl mantenance expense 35 Budding wes overdo EIL Adios frst cost rj 4 Budding capscty ovem e kon Company Noctem Pores Company Bd Rate Nethen Power Company Fiche amaras Northem Power Compary Ga Unity Eine corme gt Debts Rate mw xt nne imde 3 a Recumno
4. The best way to learn TRACE 700 is to try it yourself Use Chapters 2 through 9 to guide you through basic TRACE 700 skills During the tutorial you will create and print a project file for a fictitious Washington Elementary School Note This tutorial assumes that you have a working knowledge of your computer hardware and Windows operating system and that you have successfully installed TRACE 700 Scenario The architect provided a floor plan descriptions of the construction materials and other basic design criteria for the fictitious Washington Elementary School You will finish creating a project file define the rooms and HVAC systems and print the results Washington Elementary School Opening an existing project To begin the tutorial we will need to open an existing project Start TRACE 700 and either click Open on the File menu or click Open File on the toolbar Select the TUTORIALTRC TRC project file from the PROJECTS folder and click OK You will also find COMPLETED_TUTORIAL TRC in the same folder This is the completed project file for the Washington Elementary School which is provided so that you can compare your results with ours CDS PRM002 EN e TRACE 700 Getting Started Working with a Project 2 1 Saving a project TRACE 700 automatically saves the project file as you select Project Navigator commands or switch worksheets rooms or components To preserve this tutorial file rename it now
5. 100 X of Des Capacity Arvadatie 100 on Capac A13 Warning The felds marked in red require other entiies for conect timdalion Contact CD S Support at 6007873926 toe detalled exclansti n 4 10 Creating Airside Systems TRACE 700 Getting Started e CDS PRMOO2 EN Coils worksheet Schematic worksheet The Schematic worksheet illustrates and labels the major components of the airside system This worksheet cannot be edited it is provided for your convenience You may find this illustration useful when you are interpreting design information from calculation results Alesnalree 1 A System deccrction AAAS Patel Fare Powened VAV When TRACE 700 tuus erbeten calculates system design information it sizes both a return fan and an exhaust fan regardless of what is represented on the schematic CDS PRM002 EN TRACE 700 Getting Started Creating Airside Systems 4 11 Schematic worksheet 4 12 Advanced dialog box Creating Airside Systems Advanced dialog box Click Advanced on the Selection worksheet to change some of the more complex elements of your system Generally you should only alter these entries if you fully understand their implications One of the entries you are likely to use describes the return air path We will now change the path for our Single Zone Gym Cafe system Adding a ducted return On the Selection worksheet select Single Zone Gym Cafe from the System
6. CDS PRM002 EN TRACE 700 Getting Started 1 2 Now that you have created the East Wing zone you can assign rooms to it The Summary Information box shows the estimated airflow and cooling load values and can help you determine which rooms to zone together This can be especially helpful when the system sizes are predetermined For example you may already know that your project will have eight 20 ton rooftop units and you must combine rooms accordingly Viewing estimated airflow and load values Select any room or group of rooms from a list Click the Summary Information check box I Assign Zones and Rooms Systema Zones Rooma i iH UU Unassigned Rooms ED ero 101 ED Classroom 102 OF FPVAY Casioon E Csom 115 Fon Cok Holt Storage gd Sinde zone GymiCate TRACE 700 calculates the total area from the dimensions you entered in the Create Rooms window The program uses these common industry measurements to estimate airflow and cooling load values airflow 1 cfm sq ft and cooling load 400 sq ft ton You can change the parameters used to calculate summary information Refer to Setting Preferences in online Help for additional information Assigning Zones and Rooms Assigning rooms to a zone 5 9 Selecting and assigning sequential rooms Like many other Windows programs you can select multiple items in a sequence by using the SHiFT key with the mouse To
7. dente lower doge Eni Mom To atag equipment drag the deseed equipment ciegery In the conhiguulien uee Konfiguration Cook Equipment Heating Equpmert J Bose Utkty Misc Accessory The Create Plants window opens displaying the Configuration worksheet which is divided into two panes The left pane contains the equipment categories and the right pane displays the plant configuration that has been created Default cooling and heating plants are provided as a starting point To create a plant highlight the icon for an equipment category drag it to the appropriate point in the plant configuration and drop it Cooling icons can only be dropped onto cooling plants and heating icons can only be dropped onto heating plants Refer to the TRACE 700 User Manual for information about creating a system that is not listed as a category In the Washington Elementary School example we will create two cooling plants a rooftop unit and a chiller plant We will also create two heating plants a boiler and electric resistance heat Fa Creating a new cooling plant 1 Drag the Air cooled chiller icon from the left pane and drop it on the Cooling Plant 001 icon in the right pane Notice that the CDS PRMOO2 EN e TRACE 700 Getting Started Creating Plants 6 3 Configuration worksheet 6 4 2 3 4 5 a 2 PA 4 Creating Plants Configuration worksheet program automatically adds the associated chilled water pump and air cooled condense
8. 8 5 Recurring and additional costs neneen 8 7 Chapter 9 Working with Alternatives Setting up an alternative 9 3 Use Option 9 4 CDS PRM002 EN TRACE 700 Getting Started Contents v Create Based On option nene 9 4 Create New option esee reiten rd e od ee 9 5 vi Contents TRACE 700 Getting Started e CDS PRMOO2 EN Q Introduction Welcome to TRACE 700 comprehensive analysis software that helps you compare the energy and economic impacts of building related selections such as architectural features heating ventilating and air conditioning HVAC systems HVAC equipment building utilization or scheduling and financial options What to look for in this manual The best way to learn TRACE 700 is to try it yourself Tutorials describe the steps you will use to W Work with TRACE 700 project files Chapter 2 W Model a building Chapter 3 W Describe the air distribution system Chapters 4 5 If you purchased the full edition of the TRACE 700 program additional tutorials illustrate how to m Model heating and cooling plants Chapters 6 7 W Describe the economic parameters Chapter 8 W Work with Alternatives Chapter 9 Note These tutorials assume that you have a working knowledge of your computer hardware and Windows operating system and that you have successfully installed TRACE 700 What to look for in online Help W Detailed descriptions of each entry in the prog
9. Plants 6 9 Base Utility Misc Accessory worksheet 3 Select Boiler as the Plant and Washington Elem DHW as the Type of base utility 4 Click Apply to save changes and then compare your screen to ours Miscellaneous accessories work the same way define them if you need to in the library then add them on the worksheet In the next chapter we will assign the system coils to the plants that we just created Pme Het ERR EL Schedule Hot moter Lowrise otice Corfga ton Cocina Equpmert Heating Eqaprert 6 10 Creating Plants TRACE 700 Getting Started e CDS PRMOO2 EN Base Utility Misc Accessory worksheet Q Assigning Systems to Plants In this section of the program you identify which system coils ai will be served by the plants that have been created Only coils relevant to the system type and selected options are displayed Assign the coils in much the same way that rooms are assigned to systems that is drag and drop the coils onto the plant that will serve them You may drag either an entire set of coils or individual coils We will use both of these techniques in the continuation of our tutorial For your convenience the Washington Elementary School schematic is repeated here 10 M 50 4 North South Hallway_420 4 120 Storage Cafeteria 50 2 40 40 40 9 40 50 Gymnasium Gym Storage CDS PRM002 EN TRAC
10. The Trane Company The following are trademarks or registered trademarks of their respective companies Acrobat Reader from Adobe Systems Incorporated CALMAC from Calmac Manufacturing Corporation Pentium from Intel Corporation Windows and Microsoft from Microsoft Corporation 2008 Trane All rights reserved Contents Chapter 1 Introduction What to look for in this manual 1 1 What to look for in online Help 1 1 OW TO reach usi ne 1 2 Want the latest developments 1 2 AVE suggestions anne 1 2 Load Design Tutorial Chapter 2 Working with a Project Scena een 2 1 Opening an existing project 2 1 Saving aplolect u a ses ier c vecti eid s 2 2 Entering project information een 2 2 Selecting a weather location ssssssss 2 3 Creating a new weather profile 2 3 Chapter 3 Creating Rooms Floor Planner rere bd rd exe eura oet Create Rooms window Apply and Close Cancel buttons 3 4 Single Sheet worksheet 3 5 Creating a new room 3 5 Copying a room ssssssssssee ees 3 7 hooms worksheet u a 3 9 Editing information on the Rooms worksheet 3 9 Roots worksheet 3 10 Describing a pitched roof ne 3 12 Walls worksheet ssssssssssssssseeee n 3 14 Describing a tilted wall 3 14 S
11. Water Boiler as the Equipment type 3 Enter 100 ft water as the Full load consumption for the hot water pump Click Apply to save these changes and compare your screen with ours Almenara 1 Hosting pori u er Equipment category oder a Equomert ype Gas Feed Hot Wate Boker zl Capacty i rn Ime how 5 fe Eres rate 13 Peceneicen Capcity mm 7 Hot water pump Type Eq5020 Heating water crc pump Equipment schedule Avalatie 100 z Fa 5 Jed fio S Demand iming Bove Utility Misc Accessory CDS PRMOO2 EN TRACE 700 Getting Started Creating Plants 6 7 Heating Equipment worksheet Base Utility Misc Accessory worksheet iw Most TRACE 700 equipment definitions already include common accessories To view them open the appropriate equipment library using the Library 6 8 Template Editors program Creating Plants Base utilities defined The last worksheet in the Create Plants section describes energy users in the building that were not accounted for in the Create Rooms section A common example of a base utility is domestic hot water It can use its own energy as a hot water heater does or it can be assigned to a heating or cooling plant If assigned to a cooling plant the equipment type that you select must include capacity and energy rate values for one of the heat recovery modes listed Other examples of base utilities are parking lot lights elevators
12. an example To begin this portion of the tutorial open COMPLETED_LETUTORIAL TRC from your default projects folder CDS PRM002 EN TRACE 700 Getting Started Creating Plants 6 1 Plant configuration Again we will refer to the Washington Elementary system plan The single zone units on the gymnasium and cafeteria will be served by a unitary rooftop The fan coil system and parallel fan powered VAV system will share a chiller plant and a boiler The single zone rooftop unit will also be served by the boiler and the parallel fan powered VAV system will have electric heat North Zone North South Hallway Music Room Tech Shop West Zone East Hallway im Parallel fan powered VAV system B Rooftop units East Zone Chem E Fan coil System Gymnasium Room N Gym Storage Creating Plants TRACE 700 Getting Started e CDS PRMOO2 EN Plant configuration Configuration worksheet Click Create Plants in the Project Navigator window click the llag Create Plants icon on the toolbar or click Create Plants on the Actions menu Equipment Category Configuration RA f Cooling plants Cote 4 7 ef E Mas Cooking pri 001 Eran Aacooked Aircooled Waeco Waterco Hegting plants nen lt lt M Me Aid Heating plant 002 Plor Wear P p Mm New Cig Poi BH New Hig Plane Wau Me Dese Gavia x toute he resutance hest exc at Li Le amp F As coclesd Cooling Pump Thermal T
13. assign Classrooms 101 102 103 and 104 to the East Wing zone 1 Select Classroom 101 the first in the sequential list of rooms to include 2 Hold down the SHIFT key and click Classroom 104 to select it plus all of the rooms between Classroom 101 and Classroom 104 3 Drag the selected rooms to the East Wing zone and drop them directly on that icon Now compare your screen with ours Onasiocm 125 Fan Cols Halls Storage EI fcon 110 Tech Shop EE at Hat EI Roon 111 Music Room Fg Gyre Storage Room GD Noth Seuth Holy FED Roce 100 Administration Gi wer wirg 4 Complete the room assignments by dragging the three remaining rooms to the system icon labeled FPVAV Classrooms Then click Close to return to the Project Navigator window You have now entered enough information to calculate the design heating and cooling loads for Washington Elementary School 5 10 Assigning Zones and Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Assigning rooms to a zone Tutorial Energy and Economic Analysis Note You must purchase and install the full TRACE 700 program to complete the tutorial in this section Many of the entries described here are not available in the load design only edition of TRACE 700 Creating Plants In this chapter you will learn how to use the new sections of les TRACE 700 to configure your plants We will continue to use the Washington Elementary School as
14. be chosen Click Add Rate in the Utility Rate section Select Northern Power Company For Utility indicate that this is an Electric consumption rate Enter 3 as the yearly Inflation on that rate Pick Northern Power as the Time of day schedule Click Apply Before we enter the electric demand and gas rates compare your screen with ours Equipar inated cot 65 vw v Revenue penal b s Cancel Youl maintenance expense 35 Ston Building aes ovemde 78150 e Addiers frst cod Duldeg capacity ovemde ton Unity Rate Company Norfresn Powers Company amp dd Rate Unity Elce consumphon Fekete For vain Fs Ei Timed Nonnen Power LE n Recumn Additeesl Depreciable Cost You Econ Depe Cost incur Lio Tow Coat 5 z Ecomomicke is Yes Add Cost Yewcot gt E eu Depe le taxas pn Yu Utility Hates amp Lite Cycle Costs Economic information Repeat the previous steps to enter the two remaining rates given the following information Defining Economics Utility rates 8 5 Electric demand Northern Power Company 3 percent Inflation Northern Power time of day schedule Gas Sample Gas Co 3 percent Inflation No time of day schedule Click Apply and compare your screen to ours W Economics Alesmative 1 Easgemmtm nlndco 5 fe gt Been D fp x Yewmarimance eese 5 saon z Biking wes oversea 75150 Addons test cost b h s Duldeg cepscty overnite son Uly Rate Company
15. box For the primary and return fans select FC Centrifugal const vol as the fan Type Enter the Static Pressure for each fan Use 2 5 in wg for the primary fan and 1 0 in wg for the return fan TRACE 700 Getting Started e CDS PRMOO2 EN 4 Click Apply to save your changes and compare your worksheet with ours Note Energy related information such as the fan type Step 2 schedule and full load energy rate are unnecessary for load design calculations Consequently these entries are only available if you purchased and installed the full TRACE 700 program W Create Systems Fan Overrides Altemative 1 Syitem description Enge zone GrvCate zj SmgeZome Fan cycing schedule No tan eyeing z 1 5 Avadabie 100 jAvasibie 100 CDS PRMO002 EN TRACE 700 Getting Started Creating Airside Systems 4 9 Fans worksheet Coils worksheet The values on the Coils worksheet affect the sizing of cooling and heating coils Review the default values for the coil properties on the Coils worksheet The default values are acceptable for many projects especially if you are using occupancy and internal load schedules You may decide to change the values on this worksheet to refine your calculations or to model existing buildings E Create Systems Heating and Cooling Coil Overrides Xo Dean Coding Capuc rat 1005 f Denon Coding Capacity Avalatie 100 nt Arvadatie 100 Sol Design Capacty Avalatie
16. fans that do not apply to the system type are unavailable 4 8 Creating Airside Systems Fans worksheet The entries on the Fans worksheet let you define the fans in the system and also indicate their static pressure energy rate and availability schedule Click Overrides to review the default values for fan efficiencies The default values are acceptable for many projects Should your project have special considerations or if you are modeling an existing system you may prefer to change the values on this worksheet Specifying fans TRACE 700 uses the fan static pressures from the Static Pressure column to estimate the amount of fan heat added to the air stream They are also used in conjunction with Full Load Energy Rate Units of kW Cfm in wg to determine the amount of energy the fan will consume Leaving the static pressure field zero will omit fan heat from the design calculations For most system types the main cooling supply fan is the primary fan of the system that is the supply fan in a central station air handler or the fan in a water source heat pump Systems with an additional supply fan will use the secondary fan entry If the system you have selected uses a secondary fan this row will be active To more accurately predict the load for the gymnasium and cafeteria we will adjust the cooling supply value to account for added fan heat On the Fans worksheet select Single zone Gym Cafe in the System description
17. technical shop and the end rooms each have a terminal box assigned directly to them The single zone system The single zone system will serve the gymnasium and cafeteria and each room will need a rooftop unit These spaces are not grouped but are left as individual rooms served by dedicated systems The fan coil system The fan coil system will serve five rooms three hallways and two storage areas Because individual thermostats control each fan coil these rooms are not grouped into zones but are assigned directly to the system CDS PRMOO2 EN TRACE 700 Getting Started Assigning Zones and Rooms 5 3 System and zone plan Assign Rooms to Systems window amp Ww Double click the system and zone icons to expand or collapse the tree When a system or zone is collapsed there is a red outline around the associated icon if a room Click Assign Rooms to Systems in the Project Navigator window click the Assign Rooms to Systems icon on the toolbar or click Assign Rooms to Systems on the Actions menu The Unassigned Rooms box on the Assign Zones and Rooms worksheet lists the rooms not currently assigned to a system assigning a room or zone to a system means that the system serves that room or zone The Systems Zones Rooms box allows arranging and viewing hierarchical relationships using a tree metaphor Each branch from the system shows the rooms and zones it serves The rooms and systems are listed in the order tha
18. type to 1 wood 8 ins and the U factor to 0 028 Cason 100 Administration 5 Describe the skylights either by percentage of area or by dimension There are six skylights each 5 feet by 5 feet a total of 150 square feet which is 4 9 percent of the total roof area TRACE 700 Getting Started e CDS PRMOO2 EN 6 Select Single Coated 1 2 as the glass type Then apply these changes and compare your worksheet with ours COO Conant wont ime act TOS Sumter ton S h pus a dm Wan fO R Owan dag F fedai xw Srg cor x F Legh En Uata fT Bwt F wah 5 Shc 0s Quanity E CDS PRM002 EN TRACE 700 Getting Started Creating Rooms 3 13 Roofs worksheet 3 14 Walls worksheet Creating Rooms Walls worksheet In TRACE 700 a wall is an exterior surface that is exposed to ambient conditions and contributes to the conduction load for the room Use the Partn Floors worksheet to describe interior walls and below grade walls that separate spaces with significant temperature differences You can enter basic wall information on the Single Sheet worksheet However if the room has a tilted wall or if the walls are made of more than one construction type then you should use the Walls worksheet to further detail the room description The south wall of Classroom 125 at Washington Elementary School has tinted glass and tilts at a 30 angle Classroom 125 Describing a tilted wall O
19. will open either the Create Rooms window or the Create Systems window Double clicking a room or system also opens the associated windows When a zone is selected clicking Edit lets you change the name of the zone Clicking Close will return you to the Project Navigator window CDS PRMOO2 EN TRACE 700 Getting Started Assigning Zones and Rooms 5 5 Assign Rooms to Systems window 5 6 Assigning a room to a system Look at the FPVAV Classroom system tree Double click the icon if room or zone icons are not currently displayed below the system icon The system serves the West Wing zone Classrooms 121 122 123 and 124 and the North Wing zone Classrooms 112 113 and 114 Notice that the system also serves the Tech Shop Classroom 125 Classroom 111 and the music room as separate comfort spaces Add Room 100 Administration to the system remembering not to group it in a zone Assigning a room directly to the system Select the Room 100 Administration icon Drag the room icon to the icon labeled FPVAV Classrooms and drop it release the mouse button The room moves to the System tree The branch lines indicate that the system directly serves this room Now compare your screen with ours Assign Zones and Rooms Assigning Zones and Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Assigning a room to a system Selecting and assigning non sequential rooms Like many other Windows programs you can
20. you add a brief comment about your choice To set up an alternative 1 Display the Project Navigator window 2 Either click anywhere in the column representing that alternative and open the Alternatives Setup menu or right click the alternative to display the shortcut menu Select the appropriate category Click the desired option in the Alternative Setup dialog box Use Create Based On or Create New Explanations of each setup option follow An example scenario accompanies each explanation to demonstrate how the option can be used to simplify modeling and analysis Refer to online Help for more information about alternatives x x Note Templates can be used In make changes to moma n global bose To make changes to rooms nol Alene Comed n leerglatns you well ako naad bo caste rooma for thes shemative C Use an m m C Creste plants bor this abeenstive based on Examples of E J Alternative C Creste templates for this atemative based on Co T z XO M Setup dialog Pig ones E boxes Comnert Cames jean n wapen CDS PRM002 EN TRACE 700 Getting Started Working with Alternatives 9 3 Setting up an alternative iW The Use option can also help you manage the size of your project files As an example adding a second identical alternative to a project without using linking to any information in the first alternative doubles the size of the project file 9 4 Working with Alternatives Sett
21. 40 60 East Hallway 260 100 101 102 103 104 105 Admin Chem istration istry 50 2 40 9 40 gt 40 1 40 50 Cafeteria o N 60 R10 15 30 Gymnasium Gym Storage Room 3 2 Creating Rooms TRACE 700 Getting Started e CDS PRM002 EN Floor plan Create Rooms window Click Create Rooms in the Project Navigator window click the Create Rooms icon on the toolbar or click Create Rooms on the amp Actions menu The Create Rooms window contains seven tabbed worksheets Room descsphon Cumis 3 Co Temples Legh V Room Cis X Floor oO m vo n New Room Ines C mc Copy Afim sce Equi fba Di Tam Dese owed Wal DOE Desciphon EM NA er ov en eem mm EJ D 70 z pn qm p ph p Hh a a zu vun P S Internat badi Single Sheet Podi ish Tosd atf oorr The Single Sheet worksheet provides a convenient summary of various room attributes The other six worksheets let you refine the description of the room by entering additional details To display a specific worksheet click the associated tab at the bottom of the Create Rooms window You can quickly model simple projects by entering room information solely on the Single Sheet worksheet Use the entries on the subsequent worksheets to help you model complex projects with extensive details The Create Rooms worksheets are linked to each other and editing an e
22. Addhenal Depreciabie Cost Yen Econ Dege Cont incur li Tane Cost ss sw sj EcoxmelMe 5 er Add Coat Yeweet s DegcWetmer i5 Yu Deis Cod Utility Hates amp Lite Cycle Costs Econom information CDS PRMOO2 EN e TRACE 700 Getting Started Defining Economics 8 7 Recurring and additional costs 8 8 Defining Economics TRACE 700 Getting Started e CDS PRMOO2 EN Recurring and additional costs Working with Alternatives Both editions of TRACE 700 that is the full program and the load design only edition include a project alternatives feature that lets you compare up to four different building and or system configurations within the same project The Alternatives Setup menu provides the commands that let you add copy or delete alternatives within the current project and to define which characteristics if any are linked identical to those in another alternative Note Alternative setup categories are also displayed in the shortcut menu that appears when you right click anywhere on the alternatives grid in the Project Navigator window To add a new alternative either click New Alternative on the Alternatives Setup menu or right click the gray bar at the top of any alternative and then click New Alternative on the list that appears To copy an existing alternative either click anywhere on the alternative to be copied and then click Copy Alternative on the Alternatives Setup menu or right click the gray bar at the top of th
23. E 700 Getting Started Assigning Systems to Plants 7 1 Purple coil icons identify coils that perform both cooling and heating Each assigned separately even physically serves in both 7 2 Coil assignments The single zone system that conditions the gymnasium and cafeteria will be served by a dedicated cooling plant the rooftop unit while sharing a heating plant the boiler with the other two systems The parallel fan powered VAV and fan coil systems will share the chiller and the boiler The parallel fan powered VAV system will also have electric backup heat This is how the screen looks before we assign the coils Assign System Coils atl B Man Cooley Cot amp OE Heating System FPVAV Clscsroons B Man Hesing Cot B Pretest Cot B Retest Cot B noit Hesing Col 5 g Cooling System Fan Cols Halk Stxage B Man Cooling Cot amp Q Heating System Fan Cols Hals Storage B Man Heating Col amp Qt Cooling System Single zone Gym Cate B Man Cooling Cot Q9 Heating System Single zone Gyen Cate Man Heating Coa function must be though the same coil modes Assigning Systems to Plants Coil assignments Ses ond Piris lat de Mat Bode Mat Gyn Cale las VAV backup heat eh UHI t TRACE 700 Getting Started e CDS PRM002 EN Assigning heating coils In the FPVAV system type the main heating and reheat coils are calculated separately For the example in the tutorial h
24. Getting Started TRACE 700 Comprehensive Building Analysis version 6 2 LIMITATIONS OF LIABILITY AND DISCLAIMERS The Trane Air Conditioning Economics TRACE 700 software is intended as a design and analysis tool to help designers optimize the design of the heating ventilating and air conditioning system based on energy utilization and life cycle cost Program accuracy is highly dependent on usersupplied data It is the user s responsibility to understand how the data entered affects program output and to understand that any predefined libraries are to be used only as guidelines for entering that data The calculation results and reports from this program are meant to aid the system designer and are not a substitute for design services judgment or experience TRANE IN PROVIDING THESE PROGRAMS ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR THE SUITABILITY OF THE BUILDING AIR CONDITIONING SYSTEM IN PROVIDING PROPER TEMPERATURE CONTROL HUMIDITY CONTROL INFILTRATION AIR DISTRIBUTION AND QUIET OPERATION TRANE SHALL NOT BE LIABLE FOR ANY CLAIMS CAUSES OF ACTION OR DAMAGES ARISING OUT OF OR ALLEGED TO ARISE OUT OF THE USE OR INABILITY TO USE THE TRACE 700 PROGRAM UNDER NO CIRCUMSTANCES WILL TRANE BE LIABLE FOR ANY INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES REGARDLESS OF THE LEGAL THEORY ADVANCED Climatice Trane the Trane logo TRACE and VariTrac are registered trademarks and C D S and EarthWise are trademarks of
25. O2 EN Int Internal Loads worksheet Airflows worksheet As you edit values on this worksheet keep in mind that ventilation describes outdoor air brought into the building The chemistry lab in Washington Elementary School is equipped with exhaust hoods which will affect the room exhaust airflow and VAV minimum airflow minimum valve position of the VAV terminal that serves the lab TI Changing the VAV minimum flow a and room exhaust Previous versions of the program described the VAV minimum airflow as reheat minimum Unless a schedule says otherwise the VAV minimum airflow is also used in the heating mode E of VAV systems Adiscent at traf hor oem Room devcipton Clorwoom 05 T el Medo I rewcmuee Ro v ow s Tyee On the Airflows worksheet select Classroom 105 Change the VAV minimum flow rate to 70 Clg Airflow Change the Room exhaust rate to 1000 cfm bk OO N Apply the changes and compare your worksheet with ours CDS PRMOO2 EN TRACE 700 Getting Started Creating Rooms 3 19 Airflows worksheet Partn Floors worksheet When a surface such as a partition or floor contributes significantly to the room load you can use the Partn Floors worksheet to describe the parameters that affect the load TRACE 700 defines internal walls or below grade walls as partitions Partitions separate spaces that have a significant temperature difference such as a room next to a meat lo
26. System description box select FPVAV Classrooms 2 Specify 60 F and 55 F respectively as the Cooling supply maximum and minimum Design Air Temperatures The program will return the best supply air temperature within the range you specified not necessarily the best altogether You may not achieve your design objective if your range is too narrow 3 To size the humidification sub system change the Minimum room relative humidity to 30 TRACE 700 uses this value to determine the amount of mechanical humidification needed 4 Click Apply to save your changes and then compare your worksheet with ours l2jx Alteenalren 1 Sywendecipkn EEE racine Powa vav Lew Design Ar Temperature DeretAndeect Dehumciicabon Methods Syetre Smonen ordy Cooling sueply Max iO E Type Nore Mn 5 F Mavamum rocm rebsive husracy x Main cooing col rimam alowable avro Leaving escing cot M hi when trotting a chided wakes cod owed Me during dehursdlc ion ar wid cof mode Variatie Fan Speed for capacty contra System Sexdalion cr Heating tucely was Nubes d an speeds Fire z Mn F Percent sathow at low speed x Percent sifiow at medium speed x Supply duct bergen 5 F dilevence Humidiication Despituenity sate diene gon Miren room ive huy 0 x Selection Dosen Dedcaed DA CDS PRM002 EN e TRACE 700 Getting Started Creating Airside Systems 4 7 Temp Humidity worksheet Fans worksheet iw Entries for
27. and process loads Miscellaneous accessories defined Miscellaneous accessories can be used to model equipment attached to primary cooling equipment primary heating equipment and cogeneration equipment Examples include pumps auxiliary fans crankcase heaters pilot lights controls and defrost heaters as well as parasitic heat losses Power can be consumed in response to the primary equipment either operating or not operating The miscellaneous equipment can also be locked out for certain periods of the year or times of day by selecting a Utilization schedule from the Schedule Library What s the difference Miscellaneous accessories are usually activated and loaded by conditions of the primary equipment they are assigned to whereas base utilities themselves can become loads to primary equipment or they may consume energy on their own Creating a base utility For our Washington Elementary School we will create domestic hot water and assign it to the boiler There are two options use the sample base utility and modify it or create our own library member Modifying the sample works well if you do not plan to use that specific entry again and you do not need to define a specific schedule water temperatures or energy type TRACE 700 Getting Started e CDS PRMOO2 EN Base Utility Misc Accessory worksheet qw If the library definition that you just created is not listed it is probably because the screen needs to be re
28. as the floor click the Equals floor option button If the roof area differs from the floor area enter roof dimensions in the Roof Length and Roof Width fields Because the program multiplies these two entries enter the roof area in one box and the numeral 1 in the other if the roof is not a perfect rectangle Refer to the floor plan and enter the dimensions and direction of the two walls in Classroom 115 In TRACE 700 create walls to describe exterior surfaces exposed to ambient conditions Describe interior walls and below grade walls as partitions on the Partn Floors worksheet Define the direction of the walls as the angle of rotation from due north as illustrated in page 4 6 Refer to online Help for additional information Describe the glass for each wall Define the dimensions of the glass by entering either the percentage of total wall area or the length and width of a single window and the number of windows to which those dimensions apply TRACE 700 Getting Started e CDS PRMOO2 EN PB WN The north wall Wall 1 is 35 percent glass The south wall Wall 2 has eight windows each 5 feet high by 3 feet wide totalling 20 percent of the wall area Use the default values for internal loads These default values are read from templates Change the VAV minimum airflow to 60 Clg Airflow percent of the design cooling airflow This is the minimum stop on the VAV box that serves the room Click Apply to store the change
29. ate Systems window is comprised of seven worksheets You can create systems and select a system type using only the first worksheet which is called Selection The program requires only the system type to calculate system design information It can use the default values from the subsequent worksheets to calculate coil loads and airflows Each worksheet has a System description box that lists every system in your project similar to the Room description box in the Create Rooms window The system type is identified next to this box Incremenial Heat Puro Packaged Terminal As Conditioner CDS PRMOO2 EN e TRACE 700 Getting Started Creating Airside Systems 4 3 Create Systems window Selection worksheet Use the Selection worksheet to add copy and delete systems to give them unique names descriptions and to select the system type TRACE 700 models more than 30 types of airside systems The top section on the Selection worksheet lists five broad categories of system types which may be used to help you narrow the list of choices The bottom box lists the system types in the selected category Selecting All as the system category displays the complete list of system types The schematic diagram on the right side of the worksheet illustrates the system type The Schematic worksheet shows a larger more detailed drawing that labels the coils and fans Two of the systems in this project were created in advance In this exe
30. before you make any changes On the File menu click Save As and give the file a different name By default TRACE 700 will save your project files in the project folder you specified during installation You can change this default later Refer to Setting Preferences in online Help for additional details Entering project information Entering project information is optional The Title Page report Em identifies your project with the project information you enter here It also summarizes the geographical information and other design parameters To begin click Enter Project Information in the Project Navigator window click the Enter Project Information icon on the toolbar or click Enter Project Information on the Actions menu 1 Add a brief description for this project file in the Comments section You can use the same information as our sample screen shown below or you can create your own project description Derisi Cancel Project Infomation Propet Waihngton Elementary School Location a Crosse Wiscorun Building owner Cs Crosse Put Schools Progam user Company Comments 2 Click OK when finished Notice that the project name is displayed to the right of the Project Navigator icon 2 2 Working with a Project TRACE 700 Getting Started e CDS PRMOO2 EN Selecting a weather location Area weather conditions affect the loads in a building To specify the climate identify a city loca
31. cker or an unconditioned storage area A partition could also define a below grade wall Either way partitions do not include solar radiation loads only conduction is considered Figure 3 6 Partitions Meat Locker Interior walls that separate spaces with significant temperature differences are modeled as partitions Plan View Partitions Figure 3 6 Below grade walls Model below grade walls as partitions because they do not include solar radiation loads Below grade wall An exposed floor is affected by the ambient environment It separates the room from an area with a significant temperature 3 20 Creating Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Partn Floors worksheet difference such as a floor above an underground garage or under a breezeway 10000 Dana uH uu Figure 3 7 Exposed floor Floor that is exposed to ambient conditions Exposed floor A slab on grade floor accounts for thermal losses through the perimeter edge of the floor slab due to ambient conditions Slab on grade thermal losses are modeled during heating design only Figure 3 8 Slab on grade floor Floor that rests directly on the ground and conducts heat through the perimeter Slab on grade floor surfaces A single fan coil conditions the storage room next to the gymnasium Although the temperature difference between these two rooms is not significant we will create a partition between them for this tutoria
32. d zones are assigned to systems A room assigned directly to a system becomes a zone Rooms and zones will now be organized for the systems at Washington Elementary School CDS PRM002 EN TRACE 700 Getting Started Assigning Zones and Rooms 5 1 System and zone plan As you look again at the Washington Elementary School floor plan remember that we chose three systems for the building in Chapter 4 Now we will decide how each system will distribute air and identify groups of rooms as zones N 2 de E S North Zone E z Music Room Tech Shop West Zone East Hallway Cafeteria Parallel fan powered VAV system B Rooftop units East Zone Chem E Fan coil System Gymnasium Room i Gym Storage The VAV system Ideally each VAV terminal box in a VAV system serves only one room However to reduce costs many VAV systems often use one terminal box to serve a group of similar rooms TRACE 700 can calculate design information for example design airflows and heating coil capacities at the zone room or system level The system type determines which level to use 5 2 Assigning Zones and Rooms TRACE 700 Getting Started e CDS PRM002 EN System and zone plan The fan powered VAV system uses terminal boxes to serve zones and rooms Notice on the floor plan that adjacent classrooms which have similar loads are grouped into zones The administration room music room
33. description list Click Advanced Change the Return air path to Ducted because this system will not have a plenum return Change the Supply Duct Location to Other Compare your screen with ours Click OK to close the Advanced dialog box Then click Apply to save your changes You have now defined the HVAC systems for the fictitious Washington Elementary School In the next chapter you will assign rooms and zones to each of the three systems Click Close to return to the Project Navigator window Apply ASHRAE Std 62 1 2004 People Averaging C ASHRAE SEZ Max Vert Z Ratio Alewed x Waring The feki marked in red are cove component TRACE 700 Getting Started e CDS PRM002 EN Q Assigning Zones and Rooms TRACE 700 calculates system design information such as e airflows coil loads and fan sizes for the HVAC systems and then uses the design to simulate a year of operation To do so you must assign the rooms either directly or indirectly to a system Rooms can be grouped into zones to determine design loads at a higher level In a VAV system for example a terminal box is frequently designed to serve a group of similar rooms By grouping these rooms into a zone the program can calculate the design airflow for each room as well as the design capacity of a heating coil within the terminal box Zones are optional TRACE 700 can calculate design information if only the rooms are assigned to systems or if both rooms an
34. diagram may help you better understand how to enter a value for direction N Plan View Figure 3 4 I Roof Direction 2 01 30 Determine the angle from the north south axis Roof 1 faces northeast 45 Roof 2 faces southwest 225 The roof of the Administration room has a pitched roof that slopes down from the cafeteria to the next classroom We will now model this roof CDS PRM002 EN e TRACE 700 Getting Started Creating Rooms 3 11 Roofs worksheet alle You can specify only one glass type per roof surface If a roof consists of two or more types of glass divide the roof into sections one for each glass type Ww Abbreviations commonly used in construction type definitions include Conc concrete Ext external HW heavyweight Ins insulation Int internal LW lightweight 3 12 Creating Rooms Roofs worksheet Describing a pitched roof On the Roofs worksheet select Room 100 Administration In the Tag box give Roof 1 a more descriptive name Half of the pitched roof for this room faces east name it East Face The area of the east facing roof differs from the floor area Click the Length option button in the Roof section to enter the dimensions for this part of the roof If the roof is not rectangular you can enter the total area as one dimension and the numeral 1 as the other Refer to the illustration below and enter values for dimensions direction and pitch Change the construction
35. e Walls worksheet Then 1 In the Wall box select West Wall Main CDS PRMOO2 EN e TRACE 700 Getting Started Creating Rooms 3 15 Walls worksheet 2 Single coated 14 inch glass makes up 35 percent of this wall Enter these values 3 Apply the changes and compare your worksheet with ours Room description sc 15 z Terps wat Room e South wal Tiec Tag wes wat M Cerati F ame Wall 4 In New Wall J Interval ron Legh 9 n Una 7 Bumi F Alm Schoo Hegi f ora p ds Tan E Ging refiect fi Dincken 270 og Comme o Ossa dues rn F Wehen 5 Tye Sige Cosed 1 8 IF Lengt F R Udactor p Buhle F Height F M Sh Coet pr 3 16 Creating Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Walls worksheet Int Internal Loads worksheet Internal loads such as the people in a room or heat from lights and office equipment typically have a significant impact on the cooling load of a room Among similar rooms the various internal loads and their schedules time periods when the loads are present are generally the same Creating and applying an Internal Load template will save time by filling in all of the relevant values on the worksheet Occasionally the internal loads vary from the typical values on a template You may need to edit the Int Loads worksheet to more accurately describe the room Room 100 Administration houses typical office equipment such as copiers and printers You can apply an existing template w
36. e alternative to be copied and then click Copy Alternative on the list that appears To remove an alternative from your project click anywhere on the alternative to be removed and then click Delete Alternative on the Alternatives Setup menu or right click the gray bar at the top of the alternative to be removed and then click Delete Alternative on the list that appears The Project Navigator window summarizes the key characteristics and status of each alternative within the current project file CDS PRM002 EN TRACE 700 Getting Started Working with Alternatives 9 1 Fo TRACE 700 F e Edt Actions View Options Libraries Templates Alternatives Setup Window Help DAS ERAKAR Ahemalive 2 DESERT SE Right click on La Vegas Nevada the grid to display the shortcut menu Use Alesnslree 1 9 2 Working with Alternatives TRACE 700 Getting Started e CDS PRMOO2 EN Setting up an alternative Whether you create a new alternative or copy an existing one a series of Alternative Setup dialog boxes help you define the relationships between the newly created alternative and existing alternatives By clicking the appropriate category in the Alternatives Setup list Templates Rooms Systems Room Assignments Plants System Assignments or Economics you can dynamically link to or copy information from an existing alternative If you prefer you can provide entirely new information Each Alternative Setup dialog box also lets
37. e values red and others black Red values originate from templates Overriding a value or selecting a new item from a list changes the value in the field to black To restore the template value for a numeric field enter an asterisk For text fields select Template You can quickly define a room using only the Single Sheet worksheet to enter data and select templates This worksheet identifies general information commonly seen on blueprints floor and roof area external wall descriptions amount of glass on walls internal load conditions and ventilation requirements Templates contain information that can apply to many rooms Selecting a template fills in data on worksheets You can create and edit templates for use in several projects Any of these values can be edited even on a room by room basis Refer to online Help for more information about using templates Therefore on the Single Sheet worksheet type in a few dimensions specify internal loads and airflow information select desired templates and you are done For more accurate calculations use the other six worksheets to provide more details about the room To get you started the tutorial project file already contains many of the room descriptions You can switch to different rooms by clicking the down arrow at the right of the Room Description box and selecting a room from the list Creating a new room We will create Classroom 115 on the Single Sheet worksh
38. ed on ASHRAE 2 596 design conditions when available If you want to CDS PRM002 EN TRACE 700 Getting Started Working with a Project 2 3 2 4 Import Working with a Project design your system for other design conditions you can change the design points in the Weather Overrides dialog box raoa gba gc T ca ened Dybe m on ee Ll wens FF m m 17 Weather commis apiy to rn yew Winter Deag Mestre Uwe Stared G Ovende C Oesa Cm C waa p p p Importing a weather profile If custom weather profiles were created in TRACE 600 the Weather Library import feature will bring them into TRACE 700 Custom Load 700 weather locations can be imported using the Export Import Custom Library feature described in online Help If you have full year 8 760 hours analysis weather in one of the accommodated formats import it into the Weather Library as shown TRACE 700 will create design weather based on the data and will store a reference to the filename and location of the data file on your computer or network If you later delete a full year weather file e g SANFRANCISCO TMY you will not be able to use that location until you restore it or re import it a Library Terwplote tors zioz Fle View Opoe Window teb YPOTa te eee li Vigna veonr4g se TRANE um Weather Library General I reas States IeCHEST Traning backup T 5 Deo Lande n des Qe jest ms Monihily Said Longitude 83 de 5 Cyde G rads
39. eet Click New Room and change the room description to Classroom 115 To save time use the predefined templates to fill in some of the details From the Room Templates list select Classroom The Room template is a main template that contains references to four other sub templates internal loads airflows thermostat settings and construction types The floor plan represents Classroom 115 as 60 feet by 50 feet Type these dimensions in the Floor Length and Floor Width boxes CDS PRM002 EN TRACE 700 Getting Started Creating Rooms 3 5 Single Sheet worksheet Figure 3 1 Wall Direction Determine angle from north south axis Wall 1 faces northeast 45 Wall 2 faces southwest 225 LJ ad x In TRACE 700 a wall is an 5 exterior surface that is exposed to ambient conditions and contributes to the conduction load for the room Use the Partn Floors worksheet to describe interior walls and below grade walls that separate spaces with significant temperature 6 differences 3 6 Creating Rooms Single Sheet worksheet 270 90 Note The program multiplies these entries together to calculate the area of the room If the room is not a perfect rectangle enter the area of the room in one field and enter the numeral 1 in the other For example the dimensions of this room could also be entered as 3000 feet by 1 foot and the results would not change Because the roof on Classroom 115 has the same dimensions
40. electing a different glass type 3 15 Int Internal Loads worksheet ssssssssssss 3 17 CDS PRMOO2 EN TRACE 700 Getting Started Contents Applying a template and adding miscellaneous equipment 3 17 Airflows worksheet nennnnnennen 3 19 Changing the VAV minimum flow and room exhaust 3 19 Partn Floors worksheet sss 3 20 Creating a partition 3 21 Chapter 4 Creating Airside Systems NEC 4 2 Create Systems window eneeneneennnnn 4 3 Selection worksheet eneneennenn 4 4 Creating a new system 4 4 Options worksheet sssssssssssssseeenes 4 6 Adding an economizer ssssssssssss 4 6 Temp Humidity worksheet ne 4 7 Changing air temperatures in the system 4 7 FANS WOorkshie6t ise aan 4 8 Specifying fans sss 4 8 COIS worksheet cu innn i 4 10 Schematic worksheet uacua eh 4 11 Advanced dialog box eseennennennnn 4 12 Adding a ducted return nee 4 12 Chapter5 Assigning Zones and Rooms System and zone plan o oo cece cee cceeseceesseeeeseeeeenseeeeaes The VAV system The single zone system The fan coil system Assign Rooms to Systems window 5 4 New Delete Edit and Close buttons 5 5 Assigning a room to a system 5 6 Assigning a room directly to the system
41. freshed To do so close the Create Plants window and reopen it CDS PRMOO2 EN TRACE 700 Getting Started For this example use the Library Template Editors program to create a custom base utility Open the Base Utility Library by clicking Base Utilities on the Libraries menu of TRACE 700 Or If the Library Template Editors program is already running either click the Base Utility Library icon or click Libraries and then Base Utilities on the File menu Click New Enter the description Wash Elem DHW Keep in mind that the length of the description should be kept short enough that it will be unique if the entire field is not visible in the selection box Abbreviate when necessary Change the Hourly demand to 2 gpm Select Hot water Low rise office as the Schedule it identifies the hours when hot water will be used Pick Process hot water load as the Energy type because the boiler will provide the necessary heat Specify 60 F as the Entering water temperature and 105 F as the Leaving water temperature Click Save and compare your screen with ours i Base Utility Library Per Comments For Tune Ca Hourly demand lae Schedule lt mr Sooo 8 Dometic hot water tempere Enter Cy Leaving 105 T Now we need to go back to our TRACE 700 project and assign our new base utility to the boiler Switch to the Base Utility Misc Accessory worksheet Click New Utility Creating
42. ime by guessing about utility rates and life cycle costs You would not model a building without the correct plans the same attention to detail is required here The window has two tabs one for Utility Rates amp Life Cycle Costs and the other for Economic Information CDS PRMOO2 EN TRACE 700 Getting Started Defining Economics 8 1 Economic information Continuing the tutorial example we first need to discuss more specifics about our school and specifically how the school board will pay for the HVAC equipment We will then assign utility rates and enter cost and economic information Washington Elementary is a new school funded completely by a 30 year bond Because the bond is government issued the interest rate is only 4 percent The school superintendent would like the economic analysis to span the entire length of the bond Additionally the school expects to replace most of the HVAC equipment before the original bond issue is paid off Entering economic parameters In the Project Navigator window click Define Economics Click the Economic Information tab Enter 30 years as the Study life and Mortgage life k WN Use the default values for all entries related to depreciation and tax That information is not relevant for this example 5 Enter 4 as the Mortgage interest rate and 100 as the Percent financed 6 The Cost of capital is 4 percent Enter 5 as the Inflation rate for Maintenance expense and Replace
43. ing up an alternative Use option The Use option creates a dynamic link between the current alternative and whichever existing alternative you select Dynamically linking two or more alternatives means that changes made to one of the linked alternatives are automatically applied to the others For example if you alter any of the room characteristics in one alternative the alternatives linked to it are automatically updated with the same information Example scenario Suppose that you completely defined the building airside system and heating and cooling plants for Alternative 1 You now want to create a new alternative so that you can compare the effect of a different chiller plant on life cycle costs The airside system remains the same Suggested setup The new alternative differs from Alternative 1 only in the definition of the plant To make sure that any changes made to the templates rooms or airside systems affect both alternatives dynamic links must be created between them To set up Alternative 2 with these links click Templates Rooms and Systems respectively on the Alternatives Setup menu and select Use Alternative 1 Any changes that you later make to templates rooms or the airside systems in Alternative 1 will automatically be reflected in the other alternatives Create Based On option The Create Based On option copies selected characteristics of an existing alternative without linking the two alternatives For e
44. ith typical office loads and schedules to quickly model the loads then edit values where needed After we apply a template we will add a piece of miscellaneous equipment that is not included in the office template Applying a template and adding miscellaneous equipment 1 On the Int Loads worksheet select Room 100 Administration 2 Select Q Office as the template for internal loads Notice that all of the red entries change XY 3 Click New Load Change the default name Misc Load 2 to Refrigerator Assuming that the load is 100 percent sensible use Other values Taf kiad Std Office Equipment as the load type type include Percent of load sensible and 4 Change the Energy value to 300 Btuh Radiant fraction Use the Library Template Editors program to view definitions for internal 6 Select Electricity as the Energy meter to ensure that the loads in the Internal and 300 Btuh will be accounted for in the energy calculations Airflow Loads Library The schedule for the refrigerator differs from that of the standard office equipment Change the schedule to Available 100 CDS PRMOO2 EN TRACE 700 Getting Started Creating Rooms 3 17 Int Internal Loads worksheet Note Energy related entries are only available if you purchased and installed the full TRACE 700 program rather than the load design only edition 7 Click Apply and compare your worksheet with ours 3 18 Creating Rooms TRACE 700 Getting Started e CDS PRMO
45. l Refer to the floor plan illustrated on page 3 2 Creating a partition 1 On the Partn Floors worksheet select Gymnasium 2 Click New Partition If you wish use the default name assigned by the program Partition 1 CDS PRMOO2 EN TRACE 700 Getting Started Creating Rooms 3 21 Partn Floors worksheet 3 22 Creating Rooms Partn Floors worksheet From the floor plan we know that the room is 30 feet long and 20 feet high Enter these dimensions Select Prorated as the Method for the Adjacent space temperature Because the space is not conditioned temperature in the space varies proportionally to ambient conditions Refer to online Help for more information about temperature flags Enter 90 F and 65 F as the temperatures in the adjacent storage room during the cooling season and heating season respectively Apply the changes and compare your worksheet with ours Room Classroom Intend Sco x Leah O n Hoo 9 Const i X Udactor Buhe F Aatlow Taa Patient OS Addacert space temperature New Patton Method Pramea z Cpu Pat Cooling 9 F nag e Dame Continue the tutorial in the next chapter Creating Airside Systems TRACE 700 Getting Started e CDS PRM002 EN Creating Airside Systems When you describe the airside system that will condition the air e in your building TRACE 700 can help you determine design information such as coil and fan capacities room airflows a
46. lect Enthalpy as the Economizer Type If a dry bulb or wet bulb type of economizer is selected enter a value for the On point to set the temperature below which the economizer will operate 3 Click Apply to save your changes and then compare your worksheet with ours Alternative 1 System description Sinle zone Gym Cafe Singe Zone Le emt Economie Type None Type Enthatey E pm o x En hern eect eticiercy Or poet Pub Dieet ool schede DT Max outdoor a 100 E W eteiexy 0 Schodde Avakstie 100 1 E Inderect col schedule 07 0 Stage 1 Ai to Energy Reconesy Tran der Type Nora datant Suptide deck Ves ferens mj 1 Seen Options Desessdon lewmun amp y fm Co J Stage 2 Artos Enesgy Recoveny Tranaler Ado 10cm ex Uus max lt 4 6 Creating Airside Systems TRACE 700 Getting Started e CDS PRM002 EN Options worksheet Temp Humidity worksheet TRACE 700 calculates an appropriate design airflow for each alia room and a supply air temperature based on the room loads Entering the same If you prefer you can limit the range for minimum and maximum ee beth the design air temperatures on the Temp Humidity worksheet You NETTE ROMPE can also decide to include minimum humidity levels when sizing limits th ee nn a humidification sub system supply air temperature to nat yalia Changing air temperatures in the system 1 In the
47. ment expense 8 Leave all other fields at their defaults 9 Apply the changes and compare your screen with ours 8 2 Defining Economics TRACE 700 Getting Started e CDS PRMOO2 EN Economic information CDS PRMOO2 EN TRACE 700 Getting Started Defining Economics 8 3 Economic information Installed costs and maintenance expenses These costs typically vary considerably by system type area of the country and by sector Proper consideration of these factors is necessary for an accurate model contact your local Trane representative for help 1 Click the Utility Rates amp Life Cycle Costs tab 2 The Equipment installed cost is estimated at 6 50 per square foot Enter 6 5 and select ft2 for the units In La Crosse Wisconsin the Yearly maintenance expense for this combination of systems approximates 36 ton 84 Defining Economics TRACE 700 Getting Started e CDS PRMOO2 EN Installed costs and maintenance expenses Utility rates o ao fF U MN CDS PRM002 EN TRACE 700 Getting Started TRACE 700 comes with a sample fictitious utility rate for electric and gas New utility rates must be created in the library which allows them to be used on future projects These new utility rates may be shared with other users using the Library Export utility or the Archive Project feature Refer to online Help for additional information about these features The appropriate utility rates for Washington Elementary School must now
48. n the Walls worksheet select Classroom 125 Create a new wall and name it South Wall Tilted Enter the dimensions and direction of the tilted wall based on the illustration of Classroom 125 above Use the defaults for the construction type ground reflectance multiplier and U factor TRACE 700 Getting Started e CDS PRMOO2 EN 4 Indicate the angle of tilt for the wall Refer to online Help for additional information and illustrated explanations of direction and tilt values yi Fi 3 5 Wall Tilt igure 3 all Ti 30 PE g 90 90 Determine the angle from an l I axis that is perpendicular to Wall 1 the ground I Wall 1 tilt 20 l qus Wall 2 tilts toward ground Rl I Wall 2 tilt 30 5 Glass makes up 80 percent of the tilted wall Select the Wall area check box and enter 80 as the value 6 The tint on this coated glass affects the solar load Specify a shading coefficient of 0 55 7 Click Apply and compare your worksheet with ours Hagi mS R ra a deg ED Tag FSoanwWal T Contrat LH Wes an Length Br un But Als Ser re Pet wal area to undone plenum x Refer to online Help for P vase m SE definitions and r FR unes 7 Bunter A Meg ft Sh Coot 055 illustrations of internal una x and external shading You H x Internal None can customize existing EM shading types to add new ones of your own Selecting a different glass type Make sure that Classroom 125 is still selected on th
49. nd design temperatures An airside system in TRACE 700 refers to the method for distributing conditioned air to spaces air handlers unit ventilators fan coils and unit heaters among others The system type you select loosely describes the components of the system coils fans and air paths You refine the system by entering options and subsystems makeup air handlers economizers heat recovery devices and evaporative coolers The system type also defines how the program should size components CDS PRMOO2 EN TRACE 700 Getting Started Creating Airside Systems 4 1 4 2 System plan Take another look at Washington Elementary School represented on page 3 2 We reviewed the floor plan and chose three systems that are common in school buildings We will use m A single zone rooftop system with two units for the gymnasium and cafeteria area m A parallel fan powered VAV system for the classrooms and administration area m A fan coil system for the hallways and storage rooms North South Hallway West Hallway Cafeteria Parallel fan powered VAV system B Rooftop units I Fan coil System Room IOO 5 Gymnasium Gym Storage Creating Airside Systems TRACE 700 Getting Started e CDS PRMOO2 EN System plan Create Systems window Click Create Systems in the Project Navigator window click the ei Create Systems icon on the toolbar or click Create Systems on the Actions menu The Cre
50. ntry on one worksheet automatically updates the other worksheets with the same data For example if you change the direction of a wall on the Single Sheet worksheet the direction is also changed on the Walls worksheet The Room Description list located at the top of every worksheet shows all of the rooms in the project file You can CDS PRM002 EN TRACE 700 Getting Started Creating Rooms 3 3 Create Rooms window Ww To avoid overwriting your original data when exploring what if situations rename the project file before you 3 4 make any changes Creating Rooms Create Rooms window switch from room to room by clicking the down arrow at the right of the Room Description box and then selecting a room from the list Apply and Close Cancel buttons Simply stated the Apply button stores the current worksheet nformation in the project file However the program also does his automatically whenever you switch between worksheets rooms or components for instance selecting different walls in the same room a The Close Cancel button is labeled Close when a worksheet is initially displayed and changes to Cancel when you enter or modify room information Clicking Cancel erases any changes you made to the current worksheet and returns the button label to Close Clicking Close returns you to the Project Navigator window TRACE 700 Getting Started e CDS PRMOO2 EN Single Sheet worksheet alls Why are som
51. owever the two functions are satisfied by the same physical coil in the VAV box Non sequential coils First assign the coils to the boiler Because there are multiple coils we may use the multiple select drag and drop feature in TRACE 700 Highlight the preheat coil for the FPVAV Classrooms system Press and hold the CTRL key and use your mouse to click the humidification heating coil and the main heating coils for the fan coil and single zone systems Your screen should look like this Assign System Coils lat ee a Grae tenir as VAV backup heat New Coot Pit New Hoat Plant peer Ee J Drag the selected coils to the heating plant labeled Boiler and drop them All coils in a system Another technique that can save you time is to assign multiple coils on the same system by dragging an entire system at once Try it now Select the icon labeled Heating System FPVAV Classrooms Drag it to the VAV Backup Heat plant and drop it Notice that both coils that were unassigned in that system have now been assigned CDS PRMOO2 EN TRACE 700 Getting Started Assigning Systems to Plants 7 3 Assigning heating coils 7 4 Assigning cooling coils Cooling plant assignment works the same way For this example each of the cooling coils must be assigned individually One coil at a time 1 Assign the fan coil and FPVAV cooling systems to the Chiller plant 2 Assign the single zone cooling system to
52. r Rename the plant as Chiller To change the name select the icon and click Edit Click New Clg Plant to create another cooling plant to represent the rooftop unit Drag the Air cooled unitary icon from the left pane and drop it on the new cooling plant icon Rename the plant as Gym Cafe Creating a new heating plant Drag the Boiler icon from the left pane and drop it on the Heating Plant 002 icon in the right pane Click New Htg Plant to create another heating plant to represent the VAV electric heat Drag the Electric resistance icon from the left pane and drop it on the new heating plant icon Rename the heating plants as Boiler and VAV Backup Heat respectively Then compare your screen with ours SIE Ce amp 4 Aircooled chiller 001 g Aircooled condenser Plank Wired 4 Primary chlled meter puro E liat GyniCote How Cig Pari 5 Gb Aircooled unitary 002 a Aircooled condenser New Hio Plant Healing plants amp Mai Dole S Dole 001 ri 4P Hor water pumo amp Mat VAV backup heat ja Bl Electric Resistance 002 Energy Mgmt To assign equipment dag the desired equipment calegery to the configuration tee j _Confiouation Coann Heaton A default description is associated with each of the newly created plants Although the default information is sufficient to perform an analysis you can refine each description so that it more accurately represents your project To do this we will
53. ram including default values acceptable ranges and typical values m Calculation formulas and information used by the program m Assistance for interpreting calculation results m Rules that govern the entry process CDS PRMOOZ EN TRACE 700 Getting Started Introduction 1 1 1 2 Introduction How to reach us Your license agreement renewable annually entitles you to continued use of the program as well as free program and documentation updates The experienced HVAC engineers and software specialists in our support center will provide you with unlimited software support Should you need additional help we also offer regional or on site training Call us for details Support center hours are from 8 00 a m to 5 30 p m central time Monday through Thursday and from 8 00 a m to 5 00 p m Friday phone 608 787 3926 fax e 608 787 3005 e mail e cdshelp trane com Want the latest developments Visit the Trane Web site at www tranecds com Have suggestions We recognize the need for continual product improvement As you use TRACE 700 and discover opportunities to enhance the usability of the product or if you encounter difficulties please take a moment to let us know Fill out the feedback form included in the software package and fax or mail it to us Or if you prefer contact us through any of the methods listed above TRACE 700 Getting Startede CDS PRM002 EN Tutorial Load Design Working with a Project
54. rcise we will create one new system and then change the system name for easy identification Creating a new system 1 Click New 2 Change the System description to Single zone Gym Cafe 3 By default All is selected as the System category To shorten the list of system types pick Constant Volume Non mixing as the system category This entry does not affect calculations 4 Pick Single Zone as the System type Click Apply to store your changes The program does this automatically whenever you switch between worksheets rooms or components for instance selecting different walls in the same 4 4 Creating Airside Systems TRACE 700 Getting Started e CDS PRM002 EN Selection worksheet room but it never hurts to do it yourself more frequently Now compare your worksheet with ours As in the Create Rooms window the Copy button duplicates the entries on every worksheet for the current system and creates a new system with identical values Now finish describing the single zone unit CDS PRM002 EN e TRACE 700 Getting Started Creating Airside Systems 4 5 Selection worksheet Options worksheet On the Options worksheet you can add items such as economizers evaporative cooling coils and energy recovery transfer devices Here is an example of how to add economizers to the units in the single zone system Adding an economizer 1 On the Options worksheet select Single zone Gym Cafe from the System description list 2 Se
55. reating Rooms TRACE 700 Getting Started e CDS PRM002 EN Single Sheet worksheet Rooms worksheet alls TRACE 700 displays a warning message if you enter a value outside the typical range You can find the typical range and limits for any numeric entry in online Help Use the Rooms worksheet to provide information about the floor and the thermostat settings for the room You can create new rooms from this worksheet also TRACE 700 assumes that the floor described on the Rooms worksheet contributes only to the thermal mass of the room not to the conduction load To model the heat transfer across a floor use the entries on the Partn Floors worksheet to create an exposed or a slab on grade floor We created a room called Cafeteria for this project The cafeteria is not carpeted nor is there a suspended ceiling to define a plenum Describe these factors on the Rooms worksheet Editing information on the Rooms worksheet Select Cafeteria from the Room description list Change the Floor to floor height to 20 feet and the Plenum height to 0 feet Clear the Carpeted check box because the room is not carpeted Apply these changes The program will warn you that this height seems unusual which is okay for this tutorial Now compare your worksheet with ours CDS PRM002 EN TRACE 700 Getting Started Creating Rooms 3 9 Rooms worksheet Roofs worksheet Use the Roofs worksheet to describe the roof and skylight su
56. rfaces In TRACE 700 a roof describes external surfaces including skylights that are exposed to ambient conditions It contributes to the conduction and solar radiation loads for a room A roof may be pitched or it may only partially cover a room In these instances roof area would not equal floor area Figure 3 1 Roof Types Room 1 roof floor Room 2 no roof Room 3 roof floor On the Roofs worksheet you can add multiple roofs to a room describe the construction type of each roof and specify heat transfer parameters Describe multiple roof surfaces when the roof has a pitch two or more surfaces facing different directions or when it has two different construction types Figure 3 2 1 Room 2 Roofs Roof 1 Roof 2 je Roof 1 Roof 2 Pitched roof surfaces that face different directions Two types of construction for the roof or skylight 3 10 Creating Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Roofs worksheet You should identify pitch and direction for each roof measured in degrees The default roof pitch is 90 which is horizontal Figure 3 3 0 Roof Pitch jo I ch Determine the angle 90 90 from an axis that is perpendicular to the ground t V Room 1 Ej 13 Pitched roofs face the ground pitch 20 Room 1 Room 2 Flat roof pitch 90 Room 2 Pitched roofs face the sky pitch 70 Direction is measured as distance in degrees from North This
57. s Now compare your worksheet with ours W Create Rooms Single Worksheet Mense Roem desertion Clatisoom 115 xj Cancel Tempier Length weh Rem E Ciscon gt Flow 9 a o t New Room Inns Ec Rot ri amp p t Miio Sce Equus fba E Tat eos Coh E Deist ae Decception Legh Heg Dsechon Glass ce Oty Length iit Hei P fut foo fc o s b b hb 4 wa 2 foo fi x Fk p TR R hp RR RR og Irina loads Allows Pes 00 an Dove 5 a Meckade 022 wman VaWmn 60 change Single Sheet Boome Roots Wwa dri Loads aters Batn Flon Copying a room Making a copy of a room from either the Single Sheet worksheet or the Rooms worksheet can save time Copying a room copies the entries on every worksheet for the current room and creates a new room with identical values The only thing left for you to do is to rename the room and modify values as appropriate Copy Classroom 115 to create Classroom 105 On the Single Sheet worksheet select Classroom 115 Click Copy Change the room description to Classroom 105 The only difference between Classroom 105 and Classroom 115 is the direction of the walls CDS PRMOO2 EN e TRACE 700 Getting Started Creating Rooms 3 7 Single Sheet worksheet Change the wall information as follows Length Width Direction Wall 1 50 ft 10 ft 180 Wall 2 60 ft 10 ft 90 5 Click Apply and compare your worksheet with ours 3 8 C
58. select multiple non sequential items by pressing the CTRL key as you select each item Use the gymnasium and cafeteria as an example Try it now 1 Select Cafeteria 2 Press and hold the CTRL key then click Gymnasium Both rooms are now selected 3 In one move drag the selected rooms to the Single zone Gym Cafe system and release them 4 Repeat steps 2 and 3 to assign Classrooms 105 and 115 to the FPVAV Classrooms system Then compare your screen to ours Syiterma Zones Rooms CDS PRM002 EN e TRACE 700 Getting Started Assigning Zones and Rooms 5 7 Assigning a room to a system 5 8 Creating a zone within a system We created the West Wing zone for you now you will create the East Wing zone Creating zones is optional TRACE 700 can calculate design information for individual rooms assigned to systems or for both rooms and zones assigned to systems Creating a new zone On the Assign Zones and Rooms worksheet select the icon labeled FPVAV Classrooms system Click New Zone Notice that a new zone icon was added to the system tree Changing the name of the zone Click New Zone and then click Edit Change the zone description to East Wing and click OK Assigning Zones and Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Creating a zone within a system Assigning rooms to a zone atl Selecting the Summary Information check box estimates airflow and cooling loads for all highlighted rooms
59. t the Chiller cooling plant Change the Equipment tag to CH 1 Select Air Cooled Helical Rotary Chiller as the Equipment type Change the Capacity to 185 tons Change the Energy rate to 1 21 kW ton Enter 100 feet of water as the Full load consumption for the primary chilled water pump Apply these changes and compare your screen with ours Cooling plant Heat reiecton Equipment tog T Equipment category Ae cocked chier Equpmert type As Cooled Hekcal Piotr Chller You have now finished configuring your cooling plants There are many options that this tutorial did not use To learn more about each field refer to online Help or the TRACE 700 User Manual TRACE 700 Getting Started e CDS PRM002 EN Cooling Equipment worksheet Heating Equipment worksheet Use the Heating Equipment worksheet to add information about heating plants that were created on the Configuration worksheet ii TRACE 700 contains standard library members for many types of 6 equipment To use something other than the default equipment either select it from the list of available equipment models or create your own using the Library Template Editors program Contact the C D S Support Center or your local Trane representative for assistance in creating your own equipment models We will now take a few moments to add more information about the heating plant that represents the boiler 1 Select the Boiler plant 2 Select Gas Fired Hot
60. t they were created The Summary Information check box can help you decide how to group your rooms and zones When the box is checked TRACE 700 displays estimated airflow and cooling load values for is attached ae any highlighted rooms These estimates are based on common industry measurements 1 cfm sq ft and 400 sq ft ton You may find the Summary Information box very useful However it does slow the program down somewhat For best performance check the box only when you need it Assign Zones and Rooms PEE Alemoiree Y Systema Zones Rooma ines Le _ ars Storage 3 me s QC Singe zone Gyn Cale NewZone amp New Boom or am m zd d Su Lg an sn zi Expand Al R Siemon nomion Collage All Selected Rocers 1 Tola ons 2500 eq t Est Aiflow 2500 cim Est Load 6 25 tons 5 4 Assigning Zones and Rooms TRACE 700 Getting Started e CDS PRMOO2 EN Assign Rooms to Systems window New Delete Edit and Close buttons New systems zones and rooms can be created using this worksheet the Create Rooms and Create Systems windows are then used to further define them To add a new system zone or room click the appropriate button on the right hand side of the Assign Zones and Rooms worksheet The Delete button will delete a room system or zone completely You can only delete a zone or system if it does not contain any rooms or zones When a room or system is selected clicking Edit
61. the Gym Cafe plant Compare your completed coil assignments with ours Sy se Pars Ma de GE Cosi System FPVAV Clscsroomt U Man Cooling Col New System Cooing System Fan Cols Halk Stouge B Mar Cooling Col New Coot Pit la Boden Now Host Piori OC Heating System Fan Cols Halls Storage Bl Mar Heating Cot QE Heating System Singe zone Gym Cate B Main Heating Cot Dare Healing Sytem FPVAY Classrooms rm B Frohes Cot Humsdihicaten Heating Col ku SOE Heating System FPVAV Clatirooes B Mar Heating Cot B Retest Col This completes the entries needed to assign coil loads to mechanical equipment You may calculate energy now or complete the economic analysis using Defining Economics on page 8 1 Assigning Systems to Plants Assigning cooling coils TRACE 700 Getting Started e CDS PRM002 EN Defining Economics when combined with economic information To determine the value of an HVAC design we must incorporate installation operating maintenance and replacement costs We must also take into consideration the cost of capital inflation and other elements of the time value of money We should also consider the effective tax rate depreciation method and loan terms the owner uses Energy analysis becomes much more powerful and insightful The accuracy of your economic analysis requires carefully researched economic parameters Do not waste your precise model t
62. tion for the building and TRACE 700 will use the weather conditions time zone and elevation for that area More than 500 U S and international weather profiles are predefined in the program Each profile describes design wet bulb and dry bulb temperatures barometric pressures wind velocities ground reflectance saturation curves and cloud cover modifiers TRACE 700 uses this information to determine conduction solar infiltration and outdoorair loads 2 Click Select Weather Information in the Project Navigator p window click the Select Weather Information icon on the toolbar or click Select Weather Information on the Actions menu TRACE 700 opens the map you chose as default during installation You can select a different map by clicking Map on the Options menu Refer to Setting Preferences in online Help for additional information 1 Click once on the dark blue area of the map to select the region for La Crosse Wisconsin 2 Select La Crosse Wisconsin from the list that appears and click OK Creating a new weather profile There are several ways to create new weather for TRACE 700 to use during the calculation Note The load design only express version of TRACE 700 contains only one design day per month and cannot perform energy and economic calculations To check the program version open the HELP menu and click About TRACE 700 Overriding design conditions The summer design weather values for each city are bas
63. use the three subsequent worksheets in the Create Plants section TRACE 700 Getting Started e CDS PRM002 EN Cooling Equipment worksheet atl Contact our support center or your local Trane representative for assistance when creating your own equipment Click the Cooling Equipment tab to display the Cooling Equipment worksheet Use the Cooling Equipment worksheet to add information about cooling plants you created on the Configuration worksheet TRACE 700 contains standard library members for many types of equipment To use something other than the default equipment either select it from the list of available equipment models or create your own using the Library Template Editors program Contact the C D S Support Center or your local Trane representative for assistance in creating your own equipment models models Select the Gym Cafe cooling plant Select Large Rooftop Recip Compressor as the Equipment type Use the default values for the other worksheet entries including the energy rate By leaving the capacity field blank we allow the design phase of the program to determine the size of the equipment Click Apply and compare your screen to ours Ceo REESE onere Equpmert lag F cooled urdary OR R hoc SY Note Recall that we defined the fan equipment in the Airside Systems section CDS PRMOO2 EN e TRACE 700 Getting Started Creating Plants 6 5 Cooling Equipment worksheet 6 6 Creating Plants Selec
64. xample a new set of templates can be defined that is similar but not identical to those of an existing template Starting with a copy of the templates saves time and allows changes to be made without affecting any other alternative Example scenario In Alternative 1 the building geometry and rooms were defined Templates were used to describe the internal loads airflows and thermostat settings Now create a second alternative to evaluate the effect of a different type of lighting TRACE 700 Getting Started e CDS PRMOO2 EN Ww To view or edit details within an alternative click the alternative in the Project Navigator window and either click the desired task for example Create Plants in the Project Navigator window or click the appropriate icon on the toolbar Only one alternative can be viewed or edited at a time Suggested setup To set up the new alternative select Create Templates For This Alternative Based On Alternative 1 which copies the template information from Alternative 1 without linking to it Then use the Create Templates worksheets to define a different lighting type for Alternative 2 without affecting the information in Alternative 1 Create New option The Create New option lets you define unique information for an alternative that is to provide new information that is neither linked to any other alternative nor contains copied information from another alternative This option can be particularl
65. y useful for comparing the effect of different utility rates or economic factors that determine life cycle costs Example scenario In Alternative 1 the building airside system and heating and cooling plants are completely defined Now create a new alternative so that the economic effect of using a different type of chiller plant can be determined The airside system remains the same Suggested setup The difference between Alternative 1 and Alternative 2 is confined to the plant To define an entirely different chiller plant for Alternative 2 click Plants on the Alternatives Setup menu and select Create New Plants For This Alternative Then use the Create Plants and Assign Systems to Plants worksheets to describe the equipment in the new chiller plant and to assign the plant to the airside system CDS PRMOO2 EN TRACE 700 Getting Started Working with Alternatives 9 5 Setting up an alternative 9 6 Working with Alternatives TRACE 700 Getting Started e CDS PRMOO2 EN Setting up an alternative

TRACE™ 700 - Under Construction

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TRACE&trade; 700 - Under Construction

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TRACE™ 700 - Under Construction