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B1_15_1985_Dec_WATTSUN Reference Manual_State of

1. 18 Section IV Economic optimizations can be done by evaluating the UA column in the Building Component Menu The lower the value the better the investment Let s begin by entering the building component information from our example worksheet Since the components are listed from the ground up in the same way you would build a home let s start with the Crawl Space Menu Enter 3 RET You should see WATTSUN V3 1 NENU OF CRAML SPACE FLOORS Construction Type f U Value Btu ft2 Fh R 11 Under Floor 7 087 R 19 Under Floor 041 R 25 Under Floor 036 8 30 Under Floor 031 OTHER 0 Press lt PgDn gt to view next menu page or PgUp to view previous page CRAWL SPACE FLOOR No 1 U Value Area Cost fto UA Total Cost Construction Type Btu fto fh ft2 ft Btu F hr curr 0 000 0 0 0 00 0 0 0 00 prop 0 000 0 0 0 00 0 0 0 00 SUMMARY FOR CRAWL SPACE FLOOR No of Entries Total UA Total Cost Current 1 0 0 proposed 1 ens GE C MAE LUCK EM Press lt f gt or to scroll component E to edit data lt ESC gt to quit From our example worksheets we have a current home with 1 400 ft or R 11 and a proposed home with 1 400 ft of R 19 Let s edit by pressing E l es USADAS Ligeira AR cmm WC HO trf DAI rl gl n IE AT A Mp AIT You can change the following parameters f Command Parameter n Component edad levels A Component insulation area
2. 16 Section IV suu The next automatic step will take you to the Location Menu You should see WATTSUN V3 1 LOCATION MENU Super Good Cents Qualification can be evaluated using either Portland Zone 4 lt 6000 HOO Spokane Zone 2 6000 lt HDD 8000 Missoula Zone 3 gt 6000 HOO Otherwise use the location gost typical of your area Heating degree days base 65 are listed in after the location i Astoria 0A 5248 13 Missoula MT 7839 2 Billings MT 7049 14 Northbend OR 4661 3 Boise ID 5802 15 Glyapia WA 5719 4 Cutbank MT 8700 16 Pocatello 1D 7423 5 Dillon MT 8370 17 Portland OR 4601 6 Glasgow MT 8996 18 Aedsond OR 6741 7 Great Falls MT 7652 19 Salem OR 4974 B Helena MT 8196 20 Seattle M 5121 9 Lewiston ID 5436 21 Spokane NA 6890 10 Lewistown MT 8000 22 Whidbey Island NA 5609 11 Medford OA 4798 23 Yakima WA 6031 12 Miles City NE 7723 Enter numher of new location or lt ESC gt to quit Location nusber Current location is Portland OA You are asked to enter the number for your location Our example is number 17 Enter 17 RET You should see PORTLAND OR in the message line Press RET The program then loads the climate data you ve specified Once you ve entered the location the program moves into the Building Component Menu C x galt gen 3 DA L TBR
3. n 5 RET C 12 RET You should see WATTSUN V3 1 MENU OF CEILINGS S Construction Type R 30 2x6 Joist Std R 30 2x6 Joist R 30 2x4 Truss R 30 2x4 Truss R 38 Joist Truss Std 8 38 Joist Truss Adv R 49 Joist Truss Std R49 2x6 Joist Adv R 49 2x4 Truss Adv s R 60 Joist Truss Std E Press Pg n to view next menu page or PgUp to view previous page U Value Btu ft2 Fh Numb 1 2 3 4 8 6 7 8 g 10 CEILING No 1 UValue Ares tost ft UA Total Cost Construction Type Btu ft2 Fh fte fto 8tu F he Curr 8 30 2x4 Truss Std 0 041 1050 0 0 00 41 0 0 prop R 38 Joist Truss Std 0 036 1050 0 0 12 37 8 126 00 Press lt T gt for const type lt A gt for area Cost or lt x gt to delete PROPOSED ER AR Semin Rate C NNNM IDEEN Press lt t gt lt l gt to scroll comp HOME to change case ESC to quit i dd pipe 34 Section IV We are now ready to enter our number 2 ceiling type vaulted Pressing 4 allows you to enter another type of a component Pressing T allows you to view the previous component type You can always tell how many types of a component have been entered for the current and or proposed home by pressing ESC for the component summary Press ESC J You should see WATTSUN V3 1 MENU OF CEILINGS Construction Type U Value Btu fto Fn R 30 2x6 Joist Std 042 R 30 2x6 Joist Adv 035 R 30 2x4
4. SUNDAY was developed by Ecotope Inc and is used in evaluating Model Conservation Standards of the Northwest Power Planning Council For more precise results locations not listed or buildings that are beyond the parameters of this program users may wish to contact Ecotope Inc 2812 East Madison Seattle WA 98112 phone 206 322 3753 WATTSUN was designed to assist the user in estimating the thermal component performance UA ft2 and the space heat energy budget kWh ft2 yr of a single family residence WATTSUN can be used to comply with the thermal requirements of the Super Good Cents Program and relevant energy codes In addition WATTSUN 3 1 can provide a comparative economic analy sis of two homes with different thermal characteristics and construction costs This can be very useful when evaluating the cost effectiveness of proposed Super Good Cents homes with homes built to current energy codes or current practice It is very important that the user understand that the values are relative and not absolute Actual heating and construction costs can and most likely will be different The usefulness of this tool for evaluating building and heating costs is for bottom line compari sons not actual costs or thermal performance Before attempting to run WATTSUN see Chapter IV 1 Super Good Cents Reference Manual Oregon State University and Bonneville Power Administration January 1985 yea ea lewis S
5. a ia Ll MM X E EA es ose I Pd ms E eae REI ES E E a ss A O V ee Ow um um NEG m r mmm aE I a y o tva tal IAM amm umm SE TS MN mum it Ju O LEE i ANGE tea e nem a u ms SSS SS es as vemm St eo a NELLO ae viu a ves tes e eee m pesa as Sa uma mum uum vA besa MAS E O WS JA m ee mmi UNA amm unm LJ ST ea Me pes as pem EE OE EI nox Sa ve et CRE Public Works Travaux publics ly inset Dum Solar Programs Office 613 998 9817 No 11 February 1983 Computer Program Support Provided by the Solar Programs Office ee NU MU oo n Ln In order to facilitate the use of computer aids in solar system design the Solar Programs Office SPO of Public Works Canada provides support services for a number of computer programs that are suitable for the design and evaluation of solar systems in the Canadian climate These services are available to all Canadian solar system designers The following solar design aids are made available and supported by SPO on the Datacrown and Control Data service bureaus FCHART 4 1 VENTAIR 2 0 ENERPUB ASTEP1 The SPO funds the provision maintenance and storage of these programs on the service bureaus Consultants pay their own computing costs To gain access to the programs contact Kevin Ford at SPO for information BEFORE contacting the service bureau to set up or modify an accou
6. COPY A DEFAULT B V The default files will be copied from drive A to drive B PET E XP E 4 Section IV Running the WATTSUN Program When running WATTSUN on a dual floppy disk system always place the Working Program Disk in drive A and the Working Data Disk in drive B The program can be started in one of three ways 1 If your computer is off turn it on and insert the Working Program Disk in drive A and the Working Data Disk in drive B The Working Program Disk will automatically start it running 2 If your computer is on insert the Working Program Disk in drive A and Working Data Disk in drive B When the prompt A gt appears enter the following command and press return WATTSUN 3 If your computer is on you can also start the program by re setting the system Reset the system by inserting the Work ing Program Disk in drive A and the Working Data Disk in drive B and then press the following three keys at the same time CTRL ALT DEL Hard Disk Systems Step 1 Start Your System Switch on the power to your computer After about 30 seconds your system should boot load DOS Depending on your sys tem you may be requested to enter today s date and current mil itary time do so if requested The DOS C gt prompt should appear at the left side of your screen Step 2 Making a WATTSUN Subdirectory Subdirectories allow you to group related program files and data files together on your hard disk
7. Summary of Computer Programs Supported by SPO 1 2 EA OE DEU Dos parisienses STI FOHART 4 1 FCHART can be used for the analysis and design of solar heating systems and heat pump systems Based on methods developed at the University of Wisconsin s Solar Energy Laboratory the program features long term thermal performance and life cycle cost analysis system optimization and weather data handling capabilities The program uses a month by month analysis Weather data for 97 Canadian locations are built into the program The user may input additional weather data The program is interactive and provides tables of performance results See Technical Note 12 for a detailed summary of program enhancements for FCHART versions 3 0 4 0 and 4 1 EHNERPOGS The ENERPUB computer program simulates the performance of liquid based seasonal or short term storage solar space heating systems with or without a heat pump The program can also simulate the performance of a solar heating system used to heat oll in storage tanks ENERPUB is not suitable for simulation of solar domestic hot water systems because of the restrictive heat exchanger models Since performance is simulated for each hour ENERPUB has the potential for greater accuracy than programs using monthly calculation procedures Hourly weather data ig available for 46 Canadian cities g Several of the models in the ENERPUB program were adapted from WATSON models w
8. ing the other building components Press ESC Now enter the last two building components air leakage con trol and thermal mass without directions Remember E to edit T for construction type C for costs and ESC to change menus A Note About Thermal Mass All residential buildings fall into one of the first three mass types If additional mass is used show it as mass 2 XL Athe t PEW oR Nba ir aHa cat Keri Afr turf E BELOW GRADE WALL FLODR O 0 n 02 26 0 0 8 0 6 9 0 4 3 0 qua tr e Cas BosBSSoo C CO U2 tO A Oo 1 2 3 4 5 6 7 8 g 0 E 4 Sta 195 4 88 00 7 5 8tu 290 56 9 6 Btu 428 4 8 2 tu 147 00 25 0 Btu 0 00 126 00 24 0 Btu 1700 00 21 7 8tu 0 00 2067 95 14 7 Btu QUALIFICATION CRITERIA Current Proposed Thersal Performance Btu ft2 floor 0 301 0 225 Energy Budget kWh ft2 of floor 6 06 2 29 Press number of menu choice or ESO to quit ERGO MERE E V M POE 1 BASRNT 2 SLAB 3 CRNLSPC 4 HALL S WADON 6 000R 7 SKYLIT B CEILNG 9 INF 0 MASS When you are certain that all the building components have been entered correctly press ESC i H gt we 38 Section IV Heating Systems WATTSUN 3 1 will calculate the size of the heating equipment re quired to maintain a user specified indoor thermostat setpoint at the ASHRAE winter d
9. storage tanks heat exchanger s and auxiliary heater Collected energy is stored in the preheat tank until required When the demand cannot be met completely by the solar source the auxiliary heater supplies the balance of the demand Three types of exchanger are permitted 1 external 2 wraparound and 3 coil This model simulates a liquid based solar heating system with a single tank serving both space and DHW loads as shown in Figure 7 d The major components include collectors storage tank heat exchanger s and auxiliary heater The DHW and space heating loads are served independently from a common storage tank Collected energy is stored in the tank for use as needed Auxiliary heaters supply the balance of the demand Forced air distribution in the building is assumed Auxiliary Auxiliary Heater Heater f amp Hot Water Pre Heat Storage Tank Collector Auxiliary Tank Auxiliary Tank t Water Mains l Water Mains Figure 7a WATSUN Application Type DEW Figure 7b WATSUN Application Type DEWO DEW System with Preheat Tank DHW Zero storage System Auxiliary Heater Preheat Collector M Storage Tank Collector Storage Exchanger age Load xchanger 2 Auxiliary Tank tE Pump Figure 7c WATSUN Application Type DHWA DHW System with Preheat Tank and Heat Exchangers To Convent
10. 5 16 6 2 7 5 8 8 9 15 10 16 11 2 12 5 13 8 14 15 15 16 MCS lt 1500 ft lt 1500 ft2 lt 1500 ft lt 1500 ft2 lt 1500 ft 1500 2500 ft 1500 2500 ft2 1500 2500 ft2 1500 2500 ftz 1500 2500 ftz gt 2500 ft 22500 ft 22500 ft 22500 ft 22500 ft All Other cases of increments AAHX Type Code 2 Airxchange NuTone 5 Conservation Energy Systems VanEE 8 DesChamps 200 Series i 15 Star Heat Exchanger 100A 16 Star Heat Exchanger 200A ft 0 76 0 94 1 44 0 93 1 07 0 53 0 80 0 65 0 73 0 71 0 28 0 51 0 42 0 53 0 50 0 78 Standard Mean Deviation Median Min Max Sample ft2 0 17 0 18 0 11 0 20 0 25 0 15 0 16 0 17 0 20 0 21 0 08 0 10 0 08 0 09 0 10 0 27 ft2 0 70 0 88 1 48 0 95 1 02 0 53 0 83 0 66 0 69 0 72 0 30 0 50 0 40 0 52 0 50 0 75 ft 0 52 1 14 0 78 1 24 1 28 1 52 0 56 1 16 0 82 1 42 0 24 0 76 0 41 0 97 0 22 0 94 0 55 1 48 0 35 1 15 0 17 0 35 0 38 0 64 0 35 0 55 0 45 0 64 0 38 0 69 0 29 2 08 Size 23 11 A vwonoeg OT d Procedures for Calculating Energy Budget with a Heat Pump Step 1 Determine the heating seasonal performance factor HSPF from the supplier contractor or manufacturer of the heat pump The Air Conditioning Refrigeration Inst tute ARI has a directory listing HSPF s for most heat pumps Tip Try to find the most efficient model Step 2 Heat Pump Energ
11. proposed 1 A rE OO Eve OVEM MEDIE Press lt f gt or lt i gt to scroll component E to edit data lt ESC gt to quit To enter another component enter ESC Now you are in the Building Component Menu Now let s enter windows Enter 5 RET st ossis ie WINXN No 1 U Value Area Cost ft2 UA Total Cost Construction Type a ft2 ft2 Btu F hr i cur 0 0 0 00 0 0 0 00 prop o 0 0 0 00 0 0 0 00 3 bi rir hcg e Tane 2 Pob ror 13 1 4 4 n Mood Fraime j 4 0 4 4 dn HED storm J5 0011 4 Un TIMM Storn 15 ol 1 4 n Wood Storn 7 51 4 e in Metal Frase 8 001 4 2 iin TIM Frame 9 Dhl 4 2 4n Wood Frase 10 pbernaaee o Db1 4 2 in Netal sfStora Press Chin to view next senu page or lt Pglp gt to view previous page dp of Entries Total Total Cost Press lt t gt lt or lt i gt to scroll component E to edit EEE to quit To enter the window information for current and proposed from our example enter E Check that current is flashing T 1 RET 168 RET 1 5 RET C 26 Section IV 2 55 RET ESC You should see WATTSUN v3 1 MENU OF WINDOWS Construction Type U Value Btu ft2 Fh Db 1 4 in Metal Frase A Dol 1 4 in TIK Frame 67 Dbl 1 4 in Wood Frage Db 1 4 in Kt w Storp Dol 1 4 in TIH w Storg Obl 4 4 n Wood w Stora D
12. Floor R 25 Under Floor R 30 Under Floor OTHER Press lt PgDn gt to view next menu page or PgUp to view previous page CRAM SPACE FLOOR No 1 U Value Area Cost ft2 UA Total Cost Construction Type Btu ft2 Fh ft ft 8tu F hr curr R 11 Under Floor 0 057 1400 0 0 00 79 8 0 00 prop R 11 Under Floor 0 057 1400 0 0 00 79 8 0 00 Press T for const type lt A gt for area lt C gt ost or lt gt to delete PROPOSED ine eg ee pa ee do Press lt 1 gt lt i gt to scroll comp lt HOME gt to change case lt ESC gt to quit jerk oan AEIR e e a mete Leb cope Eka yet the proposed case and proposed is now flashing This means we only have to change the proposed type and specify the 12 ents ft2 costs from R 11 to R 19 To enter the R 19 as proposed check that proposed i is flashing and press D EE 2 RET To record the costs TUM C 12 RET ESC You should see MATTSUN V3 1 MENU OF CRAWL SPACE FLOORS Nupber Construction Type U Value Btu ft2 Fh R 11 Under Floor R 19 Under Floor R 25 Under Floor R 30 Under Floor OTHER Press lt PgDn gt to view next menu page or lt Pglip gt to view previous page CRAWL SPACE FLOOR No 1 U Yalue Area Cost ft2 UA Total Cost Construction Type Btu fte Fh ft ft2 Btu F hr cure 8 11 Under Floor 0 057 1400 0 0 00 79 8 0 00 prop R 19 Under Floor 0 041 1400 0 0 12 57 4 168 00 SUMMARY FOR CRAWL SPACE FLOOR No
13. Iv 1 Running the WATTSUN Program eee IV 4 Hard Disk Systems ee MM IV 4 The WATTSUN Screen Design eene IV 7 Symbols Used in Our Example eee IV 8 Entering Data esee nnne nennen IV 9 Help vs No Help Runs eene IV 9 WATTSUN Example Run isset IV 12 Creating a New File eese tentent tentent eren tenait IV 12 Heating Systems esses nennen IV 38 Duct Heat Loss eet nenne IV 40 hii P M IV 42 Printing WATTSUN EV 46 Storing Our Example senes IV 47 Creating Back Up Data Disks esee LVAD Summary of File Commands eee Iv 50 Editing Existing Files nentes IV 50 Cost Data oe cidem ok Overview of Cost AciQUnlng corno a ad na V l Cost Data Tables suscenxiccasotgetonvegenentedupada Mme Procedures for Calculating Energy Budget with a Heat Pump Casas eves eased VI 1 Bibliography ssescsssssssssesssesessssscsneensssssensssssececsssscnssessnenssee VII 1 Summary of Commands 7 sese VIII 1 Building Component Worksheet IX Input Worksheet iv LIST OF TABLES Tables A and B Input Worksheet ees III 5 Table 1 Incremental Costs Per Square Foot of Basement Wall By Types of Increments sss n V 3 Table 2 Incrementa Costs Per Square Foot of Floor By Types o o en EE V 4 Table 3 Incremental Costs Per Square Foot of Wal
14. R 30 Type 3 R 30 Type 3 R 30 Type 3 R 30 Type 8 ie urs cwa n DR H RENT n m Petty us Table 6 Incremental Costs Per Square Foot of Ceiling By Types of Increments MCS R 38 Type 1 R 49 Type 1 R 60 Type 1 R 38 Type 1 R 49 Type 1 R 60 Type 1 R 38 Type 5 R 38 Type 6 R 38 Type 2 R 38 Type 3 R 38 Type 1 R 38 Type 8 All Other cases of increments Ceiling Insulation Type Code Attic advanced truss loose fill insulation Attic advanced truss batt insulation Attic standard truss baffle compressed batt perimeter Vaulted batt no foam Vaulted batt foam inside Attic standard truss loose fill insulation Oo oh UI GO dy ma Standard Mean Deviation Median Min Max ft2 0 44 0 49 0 63 0 31 0 30 0 45 0 26 0 61 0 44 0 22 0 43 0 20 0 57 ft 0 26 0 53 0 14 0 29 0 09 0 20 0 27 0 24 0 15 0 18 0 24 0 37 1 40 ft2 0 39 0 30 0 58 0 20 0 28 0 44 0 21 0 49 0 38 0 16 0 33 0 08 0 31 ft 0 1 24 0 16 2 40 0 53 0 83 0 1 34 0 16 0 44 0 22 0 79 0 1 05 0 42 1 04 0 30 0 73 0 09 0 56 0 28 0 78 0 03 1 57 0 57 12 40 Sample Size 65 17 4 25 9 10 19 10 11 6 4 16 83 co lt For MCS R 49 includes R 50 and R 51 R 38 includes R 40 R 42 R 43 and R 44 prote eMe ca LM Me Im te prae A Agar OU e fp hau ey Hote Table 7 Incremental Costs Per Square Foot of Air Infiltrat
15. Ralo A 1 SOUTH 2 SOUTHEAST J EAST 4 NORTHEAST 5 NORTH G NORTHWEST 7 WEST 6 SOUTHMEST Lati i Hot 1 ME A CM reas nece cta p eir m e To enter the next building component enter ESC The program will return to the Building Component Menu Now let S enter doors Enter 6 RET C Dodo Section IV 29 J6in Fish Si Core Mood Tin F S C Wood w Stra 7510 7 16in Panel flood 1 75in 7 16in Pal Ndestro 1 75in 1 1 8in Pani Mood 1 3510 1 1 8in Pal WdiSta 1 75in Foam v Thera Srk 1 75in Fosa w o Tera Brk Press Pon to view next menu page or Pop to view previous page DOOA No t U Value Area Cost ft2 UA Total Cost Construction Type Btu tt fh tto ft2 Blur 0 000 0 0 400 00 0 000 0 0 0 00 0 0 1 1 1 i BReRER Bm No of Entries Total UA Total Cost 0 0 0 00 0 0 0 00 Press lt f gt or lt gt to scroll component lt gt to edit data ESO to quit To enter the door information for current and proposed from our example enter vagos sess cinereis e aeg inet ierit a eb E Check that current is flashing 3 RET puris ANS Pel veins 42 RET l T 9 RET C y 30 Section IV 3 50 RET ESC After reviewing the door data entered enter the next building component by pressing ESC The program will return to the Building Component Menu Now let s enter ceilings Enter 8 RET You should s
16. Sponsored by DAN BONNEVILLE POWER ADMINISTRATION Under Agmen No DE FC79 82BD34623 voe Disclaimer Neither the United States the Bonneville Power Administration the State of Washington the Washington State Energy Office nor any of their employees nor any of their contractors subcon tractors or their employees makes any warranty expressed or implied or assumes any legal responsibility for the accuracy completeness or usefulness of any information apparatus prod uct application or process disclosed within this manual Additional copies of WATTSUN Version 3 1 can be purchased from the Washington State Energy Office For information contact john Doyle 754 0745 t qi ae aba aia ben ttt I ry a SZ a Mee a iii VI RSs TABLE OF CONTENTS Introduction esse Tel Overview of WATTSUN 3 1 Limitations and Parameters II 1 Flow Chart of WATTSUN Menus ener II l Thermal hhc ana aec e Pub ed a d LE ECONOMICS M II 4 Getting Your Inputs Together esee III l An Overview eerie tette nnetnnttnthtten entere ttntens n III Things to Consider When Entering Areas and R Values 111 l How to Get the Information You Need From a Blueprint IlI 2 Input Worksheets An Example sese II1 3 WATTSUN 3 1 tasrealatecacg oe IV l What You Will Need to Start sss IV 1 Dual Floppy Disk Systems sse
17. WATTSUN on your hard disk To run WATTSUN you must first be in the WATTSUN subdirec tory If you are not move there by typing the following com mand and press the retum key CD WATTSUN Now to run WATTSUN type the following command and press the return key WATTSUN The program should start running entes gh Ai UNT The WATTSUN Screen Design WATTSUN uses the screen to display a variety of in ormation de i scriptiveorhelpful messages prompts which request you to sup ply information or answer questions via the keyboard menus of selections which permit you to choose program functions and guide the operation of the program and data entry blanks which provide a place for you to enter any information which WATTSUN requests of you In general you will notice that certain areas of the screen are reserved or used consistently for certain purposes This use of the screen is mapped as shown below 1 Current screen title this tells you what menu you are in 2 General display area displays current building informa tion 3 Message line Action line which tells you what to do next gray and black 4 Inputline gives you feedback on the current action you ve chosen or prompts you to enter information black and white 5 Menu line displays current choices available gray and black The illustration below is a representation of the display screen C
18. air based collectors or from any parallel plate air based collector or fibre matrix collector Performance calculations are based on hourly simulations Use of the program is restricted to applications for which the air demand is constant over the hour For instance a bathroom ventilation system operated by a light switch or short duration timer is not an appropriate application Hourly weather data is available for 46 Canadian cities The attached diagram shows a typical application for which VENTAIR 2 0 is suitable Collector Blower Collector Panels MDL I I E Face and i i T Bypass Damper Solar Heated Building Supply Air s E H QSensor Direct T4 Fresh i Air i f t athe aya q iw Cl q a SS Ses ey ras iid Tamb i Damper 1 Damper 3 Heating Coil Stage DI 53 i 4 en B f i The C 2ypass i i The o n on Bypass OFF The i is the desited inlet temperature to the building or process Figure 6 VENTAIR Application System Schematic 4 x db ASTEPL ASTEPl simulates the hourly performance of both liquid and air solar heating systems for space and service water heating The program is primarily directed to the analysis of seasonal storage systems although options are included to permit the simulation of short term storage systems a combined seasonal storage system and a
19. of Entries Total UA Total Cost current 1 79 8 0 00 proposed 1 57 4 168 00 Notice that ihe current home has been automatically anie as GRI CS pistas pri ter 22 Section IV Press ESC You should see WATTSUN V3 1 BUILDING COMPONENT MENU CURRENT PROPOSED COMPONENT UAC UAp INC COST COST UA BELOW GRADE WALL FLOOR 0 00 SLAB ON GRADE 0 00 CRAWL SPACE FLOOA 168 00 7 5 6tu ABOVE GRADE WALL WINOON DOOR SKYLIGHT CEILING ATA LEAKAGE CONTROL THERMAL MASS oo oo rw Oy OO A w A ooo0o92B cocco 0cocooccunc ooooo0o028o oo oocoocoo oc a Oo SSsssss sssssss TOTALS E 168 00 7 5 Btu QUALIFICATION CRITERIA Current Proposed Thermal Performance Btu ft2 floor 0 057 0 041 Energy Budget kWn ft of floor 0 00 0 00 Press number cf menu choice or lt ESC gt to quit RE SS SS ee ees 1 BASHNT 2 SLAB 3 CRMLSPC 4 WALL 5 RNOGW 6 000R 7 SKYLIT 8 CEILN6 9 INF O HASS Now let s enter above grade walls Enter 4 RET i i C You should see WATTSUN V3 t MENU OF ABOVE GRADE WALLS Number Construction Type U Value Btu tt2 Fh 2 4 R t Std Uo o 2x4 Std R 1340 5 in Iso 2x4 Adv R 1340 5 in Iso BA Std R 134 0 in Iso 2x4 Adv 1341 0 in Iso 2x6 A 19 Batt Std 2x6 R 19 Batt Adv 2x6 A 22 Batt Std 2x6 8 22 Batt Adv 2x6 Std A 19 4in Ext PS Press lt Pgln gt to view next menu page or lt PgUp gt ta view previous
20. page AEE i 2 3 4 6 T 8 9 1 o 3 NE ABOVE GRADE WALL No 1 U Value Area Cost ft2 UA Total Cost te O Construction Type Btu ft2fh ft ft2 Brute a curr 0 000 0 0 0 00 0 0 40 00 prop 0 000 0 0 0 00 0 0 0 00 SUMMARY FOR ABOVE GRADE WALL No of Entries Total UA Total Cost current f proposed 1 DS SS Arm Press f or lt I gt to scroll component gt to edit data ESO to quit To enter the wall information for current and proposed from our example enter PARES tegit cocti senaste E Check to see that current is flashing 1 1 RET Gi 1244 RET D 7 RET C 24 Section IV 4 RET ESC You should see MATISUN V3 4 MENU OF ABOVE GRADE WALLS Number Construction Type U Value Btu tto Fh 2x4 R 11 Std 2x4 Std R 13 0 5 in Iso 2x4 Adv 8 1340 5 in Iso 2x4 Std R 13H1 0 in Iso 2x4 Adv R 13H 0 in Iso 2x6 R 19 Satt Std 2x6 R 19 Batt Adv 2x6 R 22 Batt Std 2x6 R 22 Batt Adv 0 2x6 Std A 19 4in Ext PS 045 Press lt PgDn gt to view next menu page on PgUp to view previous page EEFE ABOVE GRADE WALL No 1 U Yalue Area Cost ft2 UA Total Cost Construction Type Btu fto Fh ft2 ft2 Btu F he curr 2x4 R 11 Std 0 082 1244 0 0 00 102 0 0 00 prop 2x6 R 19 Batt Adv 0 0057 1244 0 0 24 70 9 298 56 SUMMARY FOR ABOVE GRADE WALL No of Entries Total UA Total Cost current gt d
21. see WATTSUN V3 1 MENU OF CEILINGS Construction Type UValue Btu ft2 Fh R 30 2x6 Joist Std 042 R 30 2x6 Joist Adv 035 R 30 2x4 Truss Std R 30 2x4 Truss Adv R 38 Jeist Truss Std R 38 Joist Truss Adv R 49 Joist Truss Std R 49 x5 Joist Adv R 49 2x4 Truss Adv R 60 Joist Truss Std Press PgDn gt to view next menu page or PgUp to view previous page 5 Numb 1 2 3 4 5 6 7 8 3 10 CEILING No 1 U Value Area Cost ft2 UA Total Cost Construction Type Btu fto Fh tt ft2 Btu F hr curr 0 000 0 0 0 00 0 0 0 00 prop 0 000 0 0 0 00 0 0 0 00 No of Entries Total UA Total Cost 0 00 0 00 EA a RD Press lt i gt or lt i gt to scroll component E to edit data lt ESC gt to quit From our example worksheet we have 1050 ft of R 30 standard framing and 409 ft of R 30 vaulted ceiling for the current home The proposed home has 1050 ft of R 38 standard truss framing and costs 0 12 ft more than the current home R 30 standard framing The proposed home has the same 409 ft20f R 30 vaulted ceiling Let s first enter the R 30 standard framing type for the current home To do this you must enter the number corresponding to the insulation type that you want Press E 1 PS 1 Aen ros ds i PRA P p LP TO E Y nA AES Mau ted ILES SS tet Ie eat eU uo RU Lans eret a IRR NE Send m 1050 RED Now let s enter proposed Press
22. short term storage system ASTEPl utilizes the newly expanded solar radiation database of the Canadian Atmospheric Environmental Services AES including pre calculated radiation data for selected tilt angles The program also allows the user to examine the effort of year to year weather changes on the performance of a specified design A simplified but accurate method for calculation of heat losses for a buried l seasonal thermal storage tank is included Hourly weather data is available for 10 Canadian cities WATSUN WATSUN is an interactive program for the thermodynamic and economic evaluation of solar system designs It is based on hour by hour simulation and uses meteorological data for 52 Canadian locations Fifteen modules are now available from simple DHW systems to solar assisted heat pump systems The output includes the monthly and yearly energy consumption and a life cycle economic analysis which compares the cost effectiveness of the solar heating system with a conventional reference heating system WATSUN also provides several unique features such as specification of weekday weekend and seasonal load profiles various heat exchanger models and detailed hourly printouts The following 14 system models are available Ts DHW Domestic Hot Water System with Preheat Storage 2 DHWO Domestic Hot Water System without Storage 3 DHWA Domestic Hot Water System with Storage and Exchangers 4 L Liquid Based Solar Heatin
23. used by system 321536 bytes available on disk FORMAT ANOTHER Y N Section IV 3 Respond by typing N The A gt prompt will reappear at the left side of the screen Now all the program and data files on the original WATTSUN Master Disk must be copied to the Working Program Disk Remove the DOS disk from drive A and insert the original WATTSUN Master Disk in its place The disk labeled Working Program Disk should still be in drive B Copy the con tents of the WATTSUN Master Disk in drive to the Working Program Disk in drive B by typing the command below and pressing the return key Enter COPY A B V Files will be copied to the Working Program Disk in drive B When the A gt prompt reappears remove the WATTSUN Master Disk from drive A and store it in a safe place Remove the Working Program Disk from drive B The Working Program Disk can store an additional 50 building files Step 4 Preparing the Working Data Disk To format the Working Data Disk put your DOS disk in drive A and the disk labeled Working Data Disk in drive B Enter the fol lowing command then press the return key FORMAT B When formatting of this disk is complete the system will prompt with FORMAT ANOTHER Y N Press N Next remove the DOS disk from drive A and replace it with the Working Program Disk The Working Data Disk should still be in drive B At the A gt prompt enter the command below and then press the retum key
24. 126 6 7 ikk 14 959 2 4 4h SYSTEM SIZE 125 in kBtu hr kW 30 5 9 0kW 19 0 5 5kN TOTAL ANMMAL AUXILIARY SPACE HEAT kWh yr 9760 3685 Thermostat Set Point 70 0 deg F ASHRAE 97 5 Winter Design Temp 23 0 deg F Design Temperature Difference 47 0 deg F Press number of menu choice or SC to quit RECHNEN EP TYPE 2 COST 3 DUCT LOSSES 4 THERMOSTAT S WINTER DESIGN TEMPERATURE You can specify indoor thermostat and outdoor design temper atures by selecting the appropriate menu choice Since our ex ample requires no change we have completed the heating system inputs Note The indoor T STAT setting will affect the economics and the heat system size but not the energy budget which is based on the 65 F indoor temperature assumption and cannot be changed by the user To proceed to the Economics press ESC 42 Section IV Economics To run economics as mentioned earlier you will need to spec ify the incremental cost of the proposed home s individual components or specify the total marked up costs as other in the Economic Menu We should have already entered the incremental cost of our example when we were in the Building Component Menu Let s select the Economics Menu now You should see MATTSUN V3 1 ECONOMICS MENU Current BASE PRICE 75 000 00 INCREKENTAL COSTS Envelope Ikorovesents 0 00 Heating S
25. BUILDING FILES AVAILABLE IN DIRECTORY a DEFAULT BLO EXAMPLE BLD Press number of menu choice or ESC to quit Po ee pe E rs o ed na o ne UNE 1 L0AD 2 SAVE 3 NEW 4 DRIVE 5 DEFAULT Your building file is now saved on the WATTSUN Working Disk in drive A Note You should be able to save 25 50 WATTSUN runs on the Working Program Disk or you can store WATTSUN runs on sepa rate Working Data Disks in drive B To store the WATTSUN building file on the Working Data Disk in drive B enter 4 RET You are asked for directory A B C Enter B RET i i i i j 1 i i j i l Then save the building file by ent Enter EXAMPLE RET Your building file is now saved on the Working Disk in drive B To exit WATTSUN retum to the Main Menu by pressing ESC From the Main Menu press ESC You ll hear a tone then enter E gia at je sae D DURO Creating Back Up Data Files It is important to always make back up copies of information you want to keep The WATTSUN program allows you to store ai different sets of building data on the Working Data Disk To back up the Working Data Disk after an input session do the following ph A tetrad 1 iara Sen Pe iar ACA RC DT ra m Da EE nn 1 Place your DOS disk in drive A and enter the command be low then press return DISKCOPY A B 2 At the prompt Press any key when read
26. C Incremental costs of insulation Delete information 7 You should see Number Construction Type U Value Btu ft2 Fh R 11 Under Floor 057 R 19 Under Floor f R 25 Under Floor R 30 Under Floor OTHER Press PgDn to view next menu page or lt PgUp gt to view previous page CRAWL SPACE FLOOR No 1 U Value Area Cost ft2 UA Total Cost Construction Type Btu ft2 Fh ft2 tte Btu F hr Curr 0 000 0 0 0 00 0 0 0 00 prop 0 00 0 0 0 00 0 0 0 00 Press lt T gt for const type lt A gt for area lt C gt ost or to delete CURRENT i Press lt 1 gt lt gt to scroll comp lt HOME gt to change case lt ESC gt to quit i You should see the word current or proposed flashing on the right side of the screen This indicates where your information will be entered The HOME key allows you to switch back and forth between current and proposed After completing current the program will automatically switch to proposed co iwi SEn 20 Section IV To enter component type for the current home check to see that current is flashing on the screen If proposed is flashing press HOME When current is flashing press T Enter the number corresponding to the R 11 insulation from the general display area for the current home Enter 1 RET The program then asks you for area Enter 1400 RET You should see Nusber Construction Type 8 11 Under Fioor R 19 Under
27. R 27 Type R 11 Type21 R 27 Type R 11 Type 21 R 26 Type 1 R 11 Type21 R 27 Type R 11 Type21 R 30 Type R 11Type21 R 27 Type R 19 Type 4 R 27 Type 10 R 19 Type 4 R 31 Type 11 R 19 Type 4 R 38 Type ON OUR CQ t All other cases of increments Wall Type Code _ t9 OS da GI ma Strapped wall Double wall 2x6 24 o c advanced framing 2x6 24 o c standard framing 2x6 16 o c standard framing 2x6 24 o c foam outside 2x6 24 o c foam inside 2x8 16 o c standard framing Standard Mean Deviation Median Min Max Sample _ t2 8 f f Size 3 0 29 0 26 0 26 0 121 48 7 070 0 39 0 71 0 42 1 88 29 7 074 0 31 0 78 0 139 18 1 087 0 40 094 024 151 20 2 068 0 03 0 68 063070 4 2 103 0 34 0 93 0 86 130 3 2 064 0 13 0 61 051 082 4 6 087 0 23 090 048 L15 6 6 0 32 0 28 0 26 0 15 0 8 14 2 098 067 0 83 013186 5 2 092 0 50 0 90 0 20 1 66 0 89 0 86 0 72 042495 88 19 2x6 24 o c mod advanced framing with foam outside 21 2x4 16 o c standard framing a For current practice Type 4 includes Type 5 R 11 includes R 13 For MCS Type 3 includes Types 4 5 and 17 Type 6 includes Type 19 in group 2 R 24 includes R 25 in group 3 R 27 includes R 28 in group 9 R 27 includes R 25 R 26 and R 28 R 31 includes R 33 and R 34 and R 38 includes R 37 R 40 R 41 and R 43 9 Ausg o aj e gar eg tm own Table 4 Incremental Costs Per Square Foot of W
28. Run Creating a New File Let s start by creating a new file for the current and proposed ex ample input forms enclosed Creating a new file requires that you enter information in a pre programmed sequence of events While in the Main Menu enter 9 RET You should see WATTSUM V3 1 FILING MENU Wunde Pam cr CURRENT BUILDING FILES AVAILABLE IN DIRECTORY a Press number of senu choice or ESO to LOAD 2 SAVE 3 NEW 4 DRIVE 5 DEFAULT A Now to create a new file enter You ll now hear a tone Press RET to confirm You should s e WATTSUN V3 1 BUILDING IDENTIFICATION MENU House TO House Site Builder Homeowner utility BONNEVILLE POWER ADMINISTRATION Analyst Press number of menu choice or lt ESC gt to quit AE re CAS a HOUSE IDENTIFICATION 2 ADORESS 3 BUILDER 4 HOMEOWNER S UTILITY 6 ANALYST And ite aided Dist cu Slc AR A ia q BNE EPIS ago Let s begin by entering the name of the house identification from our example The house identification should describe the house type i e ranch basement etc Enter 1 RET q You are asked to enter house I D Enter EXAMPLE RANCH RET RRS a ds 14 Section IV You are then asked to enter the house site From our example en C ter 5001 MUD BAY RD OLYMPIA WA RET Now enter builder Enter TEN PENNY CONSTRUCTION Now enter homeowner utility and analyst from our ex
29. To make a subdirectory for all the WATTSUN files type the following command at the C gt E eva o Section IV 5 prompt and press the return key large key between the normal typewriter keys and the numeric key pad which has an arrow symbol pointing downwards and then to the left MKDIR WATTSUN Move to your newly created WATTSUN subdirectory by typing the following command and pressing the return key CD WATTSUN We are ready to copy the WATTSUN files from the original WATTSUN Master Disk to your hard disk Step 3 Copy WATTSUN to your hard disk You should currently be in the WATTSUN subdirectory Place the original WATTSUN Master Disk in drive A To copy all the WATTSUN files to your hard disk type the following command and press the return key COPY A C All the files on the Master Disk in drive A will be copied onto the hard disk For the program to run smoothly from the hard disk you need to change the location of the default file from drive A to drive C To do this enter WATTSUN RET The message line at the bottom of the screen will ask if you would like help with the menus enter N RET Now press 9 cu mei 6 Section IV You are now in the file section of the program To change the default file location press C 5 Now to change the drive press 1 Enter C RET To exit WATTSUN press the ESC key 3 times When you hear a tone press E Step 4 Running
30. Truss Std R 30 2x4 Truss Adv R 38 Joist Truss Std R 38 Joist Truss Adv R 49 Joist Truss Std R 49 2x6 Joist Adv R 49 2x4 Truss Adv R 50 Joist Truss Std Press PgOn gt to view next senu page or lt PgUp gt to view previous page CEILING No 2 U Value Area Cost ft2 UA Total Cost Construction Type Btu fto Fh ft ft Btu F hr curr 0 0 0 00 0 0 0 00 prop A 0 0 0 00 0 0 0 00 SUMMARY FOR CEILING No of Entries Total UA Total Cost current 1 43 1 proposed 1 37 8 Press lt f gt or I to scroll component lt E gt to edit data lt ESC gt to quit Press PG DN E HOME e Dem be eye Aet ase te 1 15 RET You should see WATTSUN V3 1 MENU OF CEILINGS Number Construction Type U Value Btu ft2 Fh 8 60 2x6 doist Adv 018 R 60 2x4 Truss Adv 017 R 11 Vaulted O72 R 19 Vaulted 049 8 30 Vaulted 035 R 38 Vaulted 008 OTHER 0 Press lt PgDn gt to view next senu page or lt Polp gt to view previous page CEILING No 2 U Nalue Area Cost it UA Total Cost Construction Type tu fte fh tt2 ft2 8tu F hr curr A 30 Vaulted 0 05 409 0 0 00 44 3 0 00 prop R 30 Vaulted 0 035 409 0 0 00 14 3 00 Press lt T gt for const type lt A gt for area Oust or lt x gt to delete PROPOSED E Rg et Press lt f gt lt l gt to scroll comp lt HOME gt to change case ESO to quit Notice that the current and proposed have both been entered We do not need to ente
31. URRENT SCREEN TITLE General Display Area 8 Section IV Symbols Used in Our Example It will be helpful to the user to understand the ee typo graphic symbols for this chapter BOLD FACE print indicates what you should enter as a response to a prompt indicates a single command key such as graphic symbol for the retum key on your keyboard is represented in this manual by RET carriage return HOME switches between current and proposed PG UP page up to check first 10 options in Component Menu PG DN page down to check second 10 options in Component Menu T scrolls up to previous component type J scrolls down to next component type deletes type area and cost ESC takes you back to previous screen E edit data help mode only backspace key X shift key CAPS LOCK cap lock key Enter means to type something on the keyboard Entries are usually followed with a return key to proceed Press means touch the pertinent key and WATTSUN will proceed ex Entering Data Menu Selection Select a number from the menu line correspond ing to the menu for which data will be entered or edited Entering Data Select a letter corresponding to the iaoeo to be entered oredited Now for a construction type select a number from the general display area that corresponds to the construction i type Toenterareasor
32. V3 1 HEATING SYSTEN SIZING MENU l Current Proposed l HEATING SYSTEM TYPE Baseboard heaters Baseboard heaters HEATING SYSTEM COST i 1000 00 500 00 BUILDING HEAT LOSS Building Envelope Heat Loss Btu F hr 513 3 Heating System Duct Loss Btu F hr 0 0 A Total Heat Loss 513 3 Res DESIGN HEAT LOAD in Btu hr Ok 24 126 61 7 1kN 14 959 2 4 4kN SYSTEM SIZE 125 in kBtu hr kW 30 5 9 0kN 19 0 5 5KW TOTAL ANNUAL AUXILIARY SPACE HEAT kWn yr 9760 3685 Theraostat Set Point 90 0 deg F ASHRAE 97 5 Winter Design Temp 23 0 deg F Design Temperature Difference 47 0 deg F Press number of menu choice or lt ESG gt to RES eee ee ea ee TYPE 2 COST 3 DUCT LOSSES 4 THERMOSTAT S WINTER DESIGN TEMPERATURE iu UE fpes MS SA Ve Pan AUI oct AMES art aaa d AB rad sete Let s enter costs of our baseboard examples Enter 2 RET v Note When using heat pumps or forced air furnaces you must specify the heat loss associated with ducts in unheated spaces To i do this you will need to know the R value duct sizes and lengths in unheated spaces Refer to Tables A and B in the Input Work sheet Directions for the use of Tables and B are outlined below In addition if you are using a heat pump refer to Section VI ei io N Mte am 40 Section IV Duct Heat Loss To calculate duct heat loss e Put the lineal feet of each size of duct in the linea
33. all the life cycle cost data for the eco nomic inputs heating system specifications and the duct heat loss calculations 4 Section III Building Component Worksheet mouse i0 EXAME 0 0 FEED E CC ep z em n Below owen CT ce EN o Oo o sm on Orem CE 000000000000 oOo OoOo gut jown Rev Garr exeant woo _ mw RAI Barr nasusarion woo oszi More Curent i wate CE EL S 77 fa emb 1 i 7 E RR PR ue E Current ZU ER NE NE mom MDAC SI Toa luz PN nan o el lal ja lool EE SE Proposed gt TRY D 8 Ceiling Current R DO 2 TO Mrs 4050 Proposed R Mf VOT an o5o s m Curent BO VAULTED 37D Du LD A amp PRACTICE iraton Proposed FACKAGE E w AAHE V2 435 W700 Thermal Current WOOD FRAME LIGHT COVSRUCTION Mass Proposed OOD FRAME LIGHT COMSTRUCTICAS 7400 NOTES MO wee i Section III 5 Input Worksheet House Identification Ad ress eite Buider a Name Homeowner s Name Utikty a Name Analyst s Name Economice t Base House Coat 2 Other Coats 3 Builder Mark up 4 Interest Rate 5 Mortgage Term 8 Down Payment 7 Income Tax Bracket 8 Real Estate Tax 9 insurance t0 Cost Par kWh 1 Heating Systema describe 2 Cost 3 Duclwork in Unhested Space Insutation R value Btushr F Fabio B 4 Indoor Thermostat Setpoint 5 Ou
34. ample work sheet using the same procedure When you reach the utility entry you must press 5 to enter LOCAL UTILITY When complete you should see WATTSUN V3 1 BUILDING IDENTIFICATION MENU House ID EXAMPLE RANCH House Site 5001 MUD BAY AD OLYMPIA WA Builder TEN PENNY CONSTRUCTION Homeowner JOE HOMEOWNER Utility LOCAL UTILITY Analyst ENERGY JOE Press number of menu choice or lt ESC gt to FERE ORA DM VIRES VADE HOUSE IDENTIFICATION 2 ADORESS 3 BUILDER 4 HOMEONER 5 UTILITY G ANALYST Note In the new file sequence the program automatically prompts you for the next I D entry You can always go back and change any 1 D input by typing the number corresponding to the change and the new input and then return To input floor area press ide tto aft You should see on the lower three lines MATTSUN V3 1 BUILDING IDENTIFICATION MENU EXAMPLE RANCH 5001 MUD BAY RO OLYMPIA WA TEN PENNY CONSTRUCTION JOE HOMEONNER LOCAL UTILITY ENERGY JOE Enter new floor area or press lt ESC gt to Enter qualifying floor area Enter qualifying floor area 8 5 1 HOUSE IDENTIFICATION 2 ADDRESS 3 BUILDER 4 HOMEONNER S UTILITY G ANALYST PIENE ria e ierra air ge l You are then asked to enter the heated floor area from our exam ple Enter 1400 RET paayan asse inn meee a e e 9 nee ms me cg e
35. e Saving Hint When starting the program the message line asks Do you want help with the menus y n Type N This will eliminate the need to press RET when selecting a menu and eliminates the need to press E to edit All other commands will be the same Overview of Cost Accounting The following cost information was compiled by the Washington State Energy Office Cost data were supplied from over 300 gen eral contractors who constructed 400 residences in Washington Oregon Idaho and Montana These residences were built to meet or exceed the Model Conservation Standards MCS and the specifications of the Bonneville Power Administration s Resi dential Standards Demonstration Program The median average costs and sample size are indicated for each component s incremental cost R 11 walls 2x4 studs 16 o c to R 19 walls 2x6 studs 24 o c Median costs difference 0 26 ft Sample size 48 residences Minimum madmum range 0 1 71 You can use these tables to determine some of the cost informa tion required by the WATTSUN economic analysis worksheets _ and design optimizations This cost data can also serve as useful feedback to builders utility persons homeowners architects and engineers interested in evaluating energy conservation options in Wey CARY ERR AAE a dp new residences Great care should be taken when using this data since significant variations occur in costs fro
36. ee WATTSUN V3 1 MENU OF CEILINGS Number Construction Type U NValue Btu ft2 Fh 1 R 30 2x6 Joist Std 042 2 R 30 2x6 Joist Adv 035 3 R 30 2x4 Truss Std 041 4 R 30 2x4 Truss Adv 034 5 R 38 Joist Truss Std 036 6 R 38 Joist Truss Adv 7 R 49 Joist Truss Std 8 R 49 2x6 Joist Adv 9 R 49 2x4 Truss Adv 10 R 60 Joist Truss Std Press lt PgDn gt to view next menu page or lt PgUp gt to view previous page CEILING No 1 U Value Area Cost ft2 UA Total Cost Construction Type Btu ft2 fh fte it2 Btu f hr Curr 0 000 0 0 0 00 0 0 0 00 prop 0 000 0 0 0 00 0 0 0 00 SUMMARY FOR CEILING No of Entries Total UA Total Cost current 1 43 1 0 00 proposed 1 37 8 126 00 Press lt I or I to scroll component E to edit data ESO to quit bc io vore ade etf s s eps PR desta p toe ri PREHR M more than 10 choices Let s view more choices Preso You should see Nuber Construction Type U Value tu ft2 Fh 11 R 60 2x6 Joist Adv mE 018 12 R 60 2x4 Truss Adv O17 13 8 11 Vaulted O72 14 R 19 Vaulted 15 R 30 Vaulted 16 R 38 Vaulted P OTHER Press lt Pgin gt to view next menu page or lt PgUp gt to view previous page CEILING No 1 U Value Area Cost ft UA Total Cost Btu fte Fh ft ft Btu F hr 0 000 0 0 0 00 0 0 0 00 0 000 0 0 0 00 0 0 0 00 Construction Type No of Entries Total UA Total Cost 32 Section IV You should
37. ee mass types If additional mass is used show it as mass 3t2 1 1 SDS C C ACM Selong G9 M CO D C CD CB S TOTALS QUALIFICATION CRITERIA Thersal Performance Btu ft2 floor Energy Budget kWh ft2 of floor 0 00 195 4 2867 96 14 7 Btu Current Proposed 0 361 0 225 6 06 2 29 Press number of menu choice or ES to quit DER E CHF URN UN MEME UK II I BASHNT 2 SLAB 3 CHMISPC 4 WALL 5 8DOK 6 DOOA 7 SKYLIT 8 CEILNG 9 INF 0 MASS When you are certain that all the building components have d been entered correctly press Peay Atha s eid tic epis tar Secad Eneias ES C i ij i j i i i RIR sce Aie en uU 36 Section IV You should see Number Construction Type U value Btu ft2 Fh R 80 2x6 Joist Adv 018 R 60 2x4 Truss Adv 017 R t1 Vaulted 072 R 19 Vaulted 049 A 30 Vaulted 035 A 38 Vaulted 028 OTHER 0 Press lt PgDn gt to view next senu page or lt PgUp gt to view previous page CEILING No 2 Value rea Cost ft2 UA Total Cost Construction Type Btu ft2 Fh ft2 ft2 Btu F hr curr R 30 Vaulted 0 035 409 0 0 00 14 3 0 00 prop R 30 Vaulted 0 035 409 0 0 00 14 3 0 00 SUMMARY FOR CEILING No of Entries Total UA Total Cost 57 4 0 00 52 1 126 00 EO NE a i E Press lt f gt or lt l gt to scroll component E to edit data lt ESC gt to quit Let s go back to the Building Component Menu to finish add
38. en Carriage Return B To edit data help mode only T To input type of construction A To input area of component C To input cost of component HOME Switches between current and proposed PG UP Page up to check first 10 options in Component Menu PG DN Page down to check second 10 options in Component Menu T Scrolls up to previous component type QD Scrolls down to next component type Deletes type area and cost e Backspace key 4 Shift key CAPS LOCK Cap lock key cce E ree Section IX For convenient duplication the Building Component Worksheet and the Input Worksheet are located in the back pocket l of this binder WATTSUN 3 1 BUILDING COMPONENT WORKSHEET HOUSE dB os ga pesos as MENU BUILDING BUILDING COMPONENT AREA LE COST INCREMENTAL NO COMPONENT STANDARD DESCRIPTION TOTAL COST UNIT Grade Grade Space a E Grade wats proposed 00000000000 wm CO owed 000000000000 mm COC p ew qeu sh d 5 Windows mes O 1111 L Doors f Pose 000000000 Proposed Current 9 Infil Current tration Proposed O Thermal Current Mass Proposed i NOTES SEO 1089 WATTSUN 3 1 INPUT WORKSHEET 1 House Identification 2 Address site 3 Builder s Name 4 Homeowner s Name 5 Utility s Name 6 Analyst s Name HOUSE iD EN Seo Building Co
39. er miscellaneous costs 0 3 Mark up on envelope and heating system 20 4 Rate interest on loan 1296 5 Term length of loan 30 yrs 6 Downpayment percentage 10 7 Tax Bracket federal and state 30 8 Real Estate Tax em 2 of total cost 9 Insurance 1 of total cost 10 kWh cost of electricity 05 kWh Assumed default values for real fuel cost escalation and con sumer discount rates cannot be changed by the user The values used in WATTSUN are as follows 1 Consumer discount rate 10 year 2 Real fuel cost escalation rate 3 year C DUMMIES STEP ru AL ran M Section HI 1 Getting Your Inputs Together An Overview Before running WATTSUN you must determine all paths of heat loss from the home the area ft2 of those paths and the nomi nal insulation levels insulation R values only in those paths The paths of heat loss through various building components to consider are as follows Jah O DC NO Um wa m Basements Slab on Grade Crawl Space Above Grade Wails Windows Doors Skylights Ceilings Infiltration Thermal Mass Record the linear footage LF of these components Things to Consider When Entering Areas and R Values 1 Acquire your dimensions from the house plans and window door schedules 2 Always record outside dimensions Record the rough frame area of windows and doors available on window door schedules Record all above grade portion
40. esign temperature for the location selected The user can adjust the winter design temperature if required for any other location The program calculates the size of heating plant required to provide 125 percent of the home s heating re quirements You should see WATTSUN V3 1 HEATING SYSTEM SIZING MENU Current Proposed HEATING SYSTEM TYPE Central Forced Air Baseboard heaters HEATING SYSTEN COST 1000 00 500 00 BUILDING HEAT LOSS Building Envelope Heat Loss Btu F hr 513 3 Heating System Duct Loss Btu F hr 10 0 Total Heat Loss 523 3 DESIGN HEAT LOAD in Btu hr kW 24 596 6 7 2kW 14 959 2 4 4kN SYSTEM SIZE 1253 in kBtu he kW 31 0 9 5kM 19 0 5 5kN TOTAL ANNUAL AUXILIARY SPACE HEAT kWh yr 10101 3685 Ther amp ostat Set Point 70 0 deg F ASHRAE 97 5X Winter Design Temp 23 0 deg F Design Temperature Difference 47 0 deg F Press number of menu choice or lt ESC gt to quit B MERECE a eae ene SO Sire I TYPE 2 COST 3 DUCT LOSSES 4 THERMOSTAT 5 WINTER DESIGN TEMPERATURE Notice default values are already entered with current as a furnace In our example we have baseboard heating in both current and proposed homes To review the various selections for heating sys tems enter 1 RET i I i i t Section IV 39 To select baseboards you 1 will need to enter the heating system type for current Enter i Y ED si You should see MATISUN
41. g System 5 A Air Based Solar Heating System 6 LHPP Liquid Based SAHP System with HP in Parallel 7 AHPP Air Based SAHP System with HP in Parallel 8 LHPS Liquid Based SAHP System with HP in Series 9 AHPS Air Based SAHP System with HP in Series 10 LHPD Liquid Based SAHP with Dual Source HP 1i AHPD air Based SAHP System with Dual Source HP 12 LHPT Liquid Based SAHP System with Two Storages 13 HP Air to Air Heat Pump 14 ER Electric Resistance Heating System However the Solar Programs Office has validated and approved only the first 5 modeis 10 WATSUN MODELS jars DEW This model simulates a liquid based solar DHW system with preheat tank such as that shown in Figure 7 a The major components are collectors storage tanks and auxiliary heater Collected energy is stored in the preheat storage tank until required When the heating demand cannot be met completely by the solar source the auxiliary heater supplies the balance of the demand DHWO This model simulates a liquid based zero storage solar system with no preheat tank as shown in Figure 7 b The major components include collectors and auxiliary heater Collected energy is passed directly to the auxiliary tank for use as needed The auxiliary heater supplies the balance of the demand DERA This model simulates a liquid based solar DHW system with preheat tank and heat exchangers as shown in Figure 7 c The major components are collectors
42. ie Meet lua ut m Overview of WATTSUN 3 1 Limitations and Parameters Flow Chart of WATTSUN Menus This flow chart provides an overview of the WATTSUN program It shows Menu and then select 4 to revise the mortgage rate To select another the relationships of the various menus to one another For instance if the menu press ESC and the program will return to the Main Menu at which user is in the Main Menu and wishes to change the mortgage interest rate point the user can select another menu of the example run in Section IV he or she would select 6 Economic MAIN MENU HEATING SYSTEM 7 COMPONENT 2 LOCATION 4 SOLAR 5 ECONOMIC 6 House Name 1 Basement Ft of 23 t South 1 Base 1 Type 1 Complete 1 Load 2 Address 2 Slab on Grade Heated Locations 2 Southeast 2 Other 2 Summary 2 Summary 2 Save 3 Builder 3 Craw Space Floor Area To Select 3 East 3 Mark Up 3 Duct Loss 3 Bldg Comp 3 New 4 Owner 4 Above Grade Required From 4 Northeast 4 Rate 4 T STAT 4 Economics 4 Drive 5 Utility Walls 5 North 5 Term 5 Weather 5 Heating 5 Oefault 6 Analyst 5 Windows 6 Northwest 6 Down Design 6 Doors 7 West 7 Tax Bracket Temperature 7 Skylight 8 Southwest B Real Estate Tax B Ceilings 8 insurance 9 Infiltration 10 kWh gt harmat Mass Input for a current and a proposed home if economic analysis is required J Es 2 Section ll Thermal The
43. incremental costs select the appropriate let ter corresponding to area or cost and then enter the areas or costs Help vs No Help Runs a ev Shortly afterstarting up WATTSUN you will be asked if you want help running WATTSUN If you do want help press Y when asked Help provides additional feedback to the user to check that the current selection is desired It also gives the user the opportu nity to escape without affecting data or going to the next portion of the program Running WATTSUN with help also requires you to enter E for edit prior to entering information in the Building Component Menu pew Ath e beo ast ur ris 130 j Note When in doubt about what to do next read the message line at the bottom of the screen to see what WATTSUN is asking for FRIA Gp hago oe o dpud sinta Sore 2t 10 Section IV Start the WATTSUN program according to the instructions in the previous section You should see BONNEVILLE POWER ADHINISTRATION Welcomes You To MATTSUN version 3 1 The Official Software of the Super 6000 CENTS Program Based on annual space heating load curves devloped by Ecotope Inc of Seattle WA under BPA contract No DE AC79 858P21380 U Values are derived from ASHRAE Handbook of Fundamentals consistent with those used in the Super 6000 CENTS prograa The Washington State Energy Office and the Bonneville Power Administration wake no warranty e
44. indow By Types of Increments Standard Group Current Mean Deviation Median Min Max Sample No Practice MCS ft2 ft f ft Size 1 DG TC 3 11 1 48 2 70 0 87 7 30 41 Type 1 Type 1 TB 2 DG TG 2 28 1 53 2 66 0 4 79 9 Type 1 TB Type 1 TB 3 DG TG 4 16 2 42 3 24 2 24 9 77 10 Type 2 Type 2 4 DG HM 3 55 2 48 3 48 1 10 10 26 17 Type 1 Type 10 5 DG DG 2 61 1 38 234 0 68 691 21 Type 1 TB All other cases of increments 2 72 4 30 1 38 6 03 22 55 66 Window Type Code TB Thermal break 9 Aluminum thermal break Double glazing 1 Aluminum slider 10 Aluminum heat mirror Vos Triple glazing 2 Wood slider 12 Wood awning Heat mirror 4 Wood casement 14 Wood double hung 6 Wood Fixed E 20 UE o v Tra A ON eo q e ze E lt owe diras kt gb deci u Up ios n ttt c AES aoo quit Weg P dr n nip o EA Rc Table 5 Incremental Costs Per Square Foot of Door Barrier By Types of Increments l Standard Group Current Mean Deviation Median Min Max Sample No Practice MCS St GS SR GM Size 1 Type 2 Type 1 3 70 3 78 3 38 8 25 1595 80 All other cases of increments 1 68 2 93 0 66 0 57 1653 140 Door Type Code 1 Insulated dad foam core 2 Wood solid cor 4 Atuonp os Group No ND O0 M CO Cn ix CO dy mm 10 11 12 Current Practice R 30 Type 8 R 30 Type 8 R 30 Type 8 R 38 Type 8 R 38 Type 8 R 38 Type 8 R 30 Type 5 R 30 Type 5
45. ion Barrier By Types of Increments Group Current No Practice 1 Type 12 12 12 2 Type 15 1 15 3 Type 15 12 15 F 4 Type 15 12 15 i 5 Type 15 12 15 6 Type 15 12 15 7 Type 15 15 15 8 Type 15 15 15 9 Type 15 15 15 i 10 Type 15 15 15 11 Type 15 15 15 12 Type 15 15 15 13 Type 15 15 15 1 2 4 6 Polyvinyl under sheetrock Foam Exterior p or plywood Polyvinyl between strapped wall MCS Type 2 2 2 Type 1 14 Type 11 11 11 Type 1 1 10 Type 1 1 7 Type 1 14 Type 1 64 Type 1 2 9 Type 1 2 7 Type 1 2 4 Type 1 1 9 Type 1 1 7 Type 1 14 1 All Other cases of increments Infiltration Barrier Type Code 7 Polyvinyl under slab Boor 9 4 and 7 10 Polyvinyl under subfloor 11 Airtight drywall Size i E BERR a sro s ia Standard Mean Deviation Median Min Max Sample ft 6 82 f ft 0 08 0 05 0 10 0 02 0 15 0 16 0 05 0 19 0 09 0 19 0 05 0 05 0 02 0 02 0 13 0 03 0 00 0 03 0 03 0 03 0 59 1 47 0 08 0 4 23 0 10 0 06 0 09 0 04 0 22 0 21 4 13 0 16 0 08 0 45 0 14 0 09 0 12 0 06 0 33 0 18 0 05 0 18 0 12 025 0 20 0 10 0 18 0 09047 0 18 0 09 0 19 0 05 0 37 0 15 0 07 0 14 0 07 028 0 17 0 13 0 12 0 02 0 62 0 21 0 17 0 17 0 1 27 12 Craft or foil faced insulation 5 None bead at Se em D NNE cec adro Table 8 Incremental Costs Per Square Foot of Air to Air Heat Exchangers By Types of Increments Group Current No Practice 1 2 2 5 3 8 4 15
46. ional DEW Heater Load Pump Building Auxiliary Heater Collector Pump Water Mains Figure 7d WATSUN Application Type L Liquid based DHW and Space Heating System with Single Tank Building Heating Fan Auxiliary Heater Solar Air Collector f From Local Water Supply Building Pm ioo S O o Rock Bed Storage LER Divided into N 2 Segments for Analysis e H Building Return c Ai E ir By Pass Collector Circulating Fan Figure 7e WATSUN Application Type A Air based DEW and Space Heating System with Rock Bed Storage amp 368 This model simulates an air based solar heating system for space and hot water heating of a residential building as shown in Figure 7 e The major components are the collectors rock bed storage aud auxiliary heater The heated air from the collectors is passed either through the storage or the building If no collection is possible and there is a demand energy is drawn from storage and supplemented by the auxiliary heater A by pass duct is used to moderate the temperature and maintain air flow The storage can be stratified up to a maximum of 5 segments WATSUN User s Service The WATSUN User s Service at the Univeristy of Waterloo provides the following support to users 1 A user can set up an account to run WATSUN on the University of Waterloo computers via a phone link 2 Copies of the WATSUN program and manual can be
47. ith some enhancements over the WATSUN space heating programs n Stratified tank model for short term or seasonal storage Four possible heat pump Locations a Inclusion of heat loss from the storage to the bullding outdoors or ground inclusion of heat loss from collector and storage piping to building outdoors or ground The attached diagrams show typical applications for which ENERPUB is suitable pi Figure 1 ENERPUB Application Solar Heating System Schematic No Heat Pump system type O em Figure 2 ENRRPUB Application Solar Heating System Schematic Heat Pump in Series with Solar Supply system type 1 CL C pHW HX HP mo mn O Figure 3 ENERPUB Application Solar Heating System Schematic Heat Pump in Parallel with Solar Supply system type 2 Figure 4s ENRBRPUB Applications Solar Heating System Schematic Heat Pump Supply Only system type 3 Figure 5 ENERPUB Application Oil Tank Heating System system type 4 3 VENTAIR 2 0 The VENTAIR 2 0 computer program simulates the performance of air based solar collectors used in industrial process or building ventilation preheat systems The program can be used to simulate zero storage systems with 100 ambient fresh air intake to the solar collectors The program accepts data from all PUSH approved
48. ize in KBtuMe KW 3051900 49 015 500 Tota Annual Auxiliary Space Heat KM 9 760 3 665 aces o First Year Monthly PITIEnergy ad SEMA 571 60 30 Year Life Cycle Cost 6 56 319 35 94 711 95 Maha 46 Section IV Printing WATTSUN While in the Main Menu you can print your program by entering 8 RET You should see WATTSUN V3 1 PRINT MENU COMPLETE 2 SUMURY 3 BUILDING COMPONENTS 4 ECONOMICS 5 HEATING SYSTEM Press number of menu choice or SC to quit i COMPLETE 2 SUMMARY 3 COMPONENTS 4 ECONOMICS S HEATING SYSTEM EPTC UT GSN Lats hiest peli sag arti i iQ P You can choose either a partial printout or a complete printout by specifying the number corresponding to the printout desired En ter 1 RET Get your printer ready and press RET It is good practice to make a printed copy of all new files before you exit the WATTSUN program swhilein the Main Menu Let s save our example file to the Work Ang Program Disk in drive A Enter CURRENT BUILDING FILES AVAILABLE IN DIRECTORY a l DEFAULT BLD Ae e ately abe ae of n erat NS Enter name of file to save or ESO to File name o A LOAG 2 SAVE S HEW 4 DRIVE S DEFAULT Using 8 characters or less give your work sampie a name by en tering EXAMPLE RET 48 SectionIV You should see WATTSUN V3 1 FILING WENU CURRENT
49. l By Types of Increments eene tettennntetttntentntttata V 5 Table 4 Incremental Costs Per Square Foot of Window By i Types of Inarements seen V 6 Table 5 Incremental Costs Per Square Foot of Door Barrier By Types of Increments seen eretnnnes V 7 Table 6 Incremental Costs Per Square Foot of Ceiling By Types of Increments tentent B 8 Table 7 Incremental Costs Per Square Foot of Air Infiltration i Barrier By Types of Incremenis 1 sse V 9 Table 8 Incremental Costs Per Square Foot of Air to Air Heat i pa Exchangers By Types of Increments ee B 10 C do at oh fe SectionI 1 Introduction Today s increased interest in energy efficient home construction has stimulated the demand for energy analysis tools which are quick and easy for the builder designer and code official to use and which accurately reflect the importance of people appliance and solar gains in very well insulated buildings WATTSUN is intended to be such a tool WATTSUN was developed by the Washington State Energy Office Ecotope and the Bonneville Power Administration It was based on The Model Conservation Standard Energy Budget Approach Hand book prepared by Larry Palmiter and Richard Byers of Ecotope Inc with funding from the Bonneville Power Administration The Handbook contains the coorelations for thousands of annual heating load simulations generated by the SUNDAY simulation program
50. l feet column of Table B of the Input Worksheet e Then find the duct size or dimension in the duct size column in Table A Input Worksheet e Move to the right beneath the appropriate R value for that duct size e The value appears in bold print e In Table B multiply the lineal feet times the value in Table A for each duct run e In Table B sum the product lines 1 2 and 3 e Thissum is the final number to be used for the heating system duct loss You will be asked to input costs for the current and proposed heating systems In most cases you can assume these costs to be slightly lower 800 vs 1 000 for the proposed case since the home is generally more energy efficient This may not be the case for passive solar homes where large glass areas exist The heating system sizing is a worst case calculation i e no sunshine and does not account for solar heating gains Since the current baseboard cost is the same as our example we need only to enter the proposed For our proposed example press HOME 800 RET You dio aec WATTSUH V3 1 HEATING SYSTEM SIZING MENJ Proposed 5 Current o HEATING SYSTEM TYPE Baseboard heaters Baseboard heaters HEATING SYSTEM COST 100 00 800 00 BUILDINS HEAT LOSS Building Envelope Heat Loss Btu F hr 513 3 318 3 Heating System Duct Loss Btu F hr 0 0 0 0 Total Heat Loss 513 3 318 3 DESIGN HEAT LOAD in Btu hr kW 24
51. led analysis will be of special value for home builders who are inter ested in the cost of going from one particular level of ceiling in sulation for example to another level of ceiling insulation Moreover this chapter contains the cleanest data because unu sual cases are not included in the analysis i i i i i sedile act eta enc sro ph ii ao a af ca pt Table 1 Incremental Costs Per Square Foot of Basement Wall By Types of Increments Group Current No Practice 1 R 0 Type 15 2 R 0 Type 15 3 R 0 Type 22 4 R 5 Type 14 5 R 11 Type 13 MCS R 11 Type 15 R 19 Type 15 R 10 Type 14 R 10 Type 14 R 19 Type 13 All other cases of increments Basement Wall Type Code 13 All weather wood foundation 14 Cement foam outside 15 Cement batt inside 21 2x4 16 oc standard fearing 22 No insulation on foundation Standard Mean Deviation Median Min Max 8 8 0 46 0 80 1 15 0 54 0 42 0 61 For current practice Type 15 includes Type 21 and 22 and Type 13 includes Type 15 For MCS Type 15 facies Type 21 Type 13 includes Type 15 R 11 indudes R 13 and R 19 includes R 22 ft 0 36 1 01 0 99 0 60 0 22 0 59 5 8 0 22 0 88 0 23 0 75 0 09 1 49 1 21 3 25 040 119 9 0 47 1 98 le 3 Size Group No tram do 2 BAG epp ph NET Icon Incremental Costs Per Square Foot of Floor Curre
52. m builder to builder and design to gt design Because these homes were demonstration homes the circumstances surrounding their construction are probably differ ms ent than most Maximum and minimum costs are included to in 1 dicate the extent of these variations A short narrative on some components was included to provide a better understanding of the origin of these costs and what they include The most accurate cost will ultimately come from the 2 Section V specific builder and his sub contractors These cost data are sup plied to complement that which the builder may already have All efforts should be made by the WATTSUN user to validate or obtain cost data from his or her specific marketplace The user is encouraged to check with local insulation contractors HVAC contractors equipment suppliers and other contractors involved with residential construction to validate costs Cost Data Tables Normalized Incremental Building Costs Group Analysis In this section we present a detailed analysis of incremental building component costs normalized standardized by compo nent area for selected groups of components Those cases not in cluded in a numbered group are analyzed separately as part of the group all other cases of increments The building compo nents are ceiling floor walls basement walls windows air infil tration barriers door and air to air heat exchangers This detai
53. mponent Worksheet ES Heated Floor Area including basement and upstairs j Ft EN Location choose location from tabie in Section IH ER See Building Component Worksheet window solar orientation Economics 1 Base House Cost 2 Other Costs 3 Builder Mark up 4 Interest Rate Current Proposed 5 Mortgage Term 6 Down Payment 7 Income Tax Bracket 8 Real Estate Tax 9 Insurance 10 Cost Per kWh Current 1 Heating Systems describe Proposed 2 Cost 3 Ductwork in Unheated Space insulation R values Btu hr F Table B 4 indoor Thermostat Setpoint 5 Outside Winter Design Temperature TABLE A INSULATION R VALUE DUCT FT PER LF 1 31 TABLE B Duct Heat Loss Calculation LINEAL FEET TABLE A VALUE HEAT LOSS BTU HR F 1 57 183 2 09 _ 2 62 314 3 66 gds BE 5 0 _ SEO 1089 6 67 SUM LINES 1 2 3 TOTAL DUCT LOSS Refer to Duct Heat Loss Section IV for instuctions in the use of Tables A and B
54. ner s ability to make house payments before proceeding with a loan 3 You are allowed to analyze the various insulation strategies that you might wish to use on a particular house comparing each option in terms of heat saved per dollar spent With a fixed dollar budget for conservation features you can spend the money first on those items that provide the greatest reduc tion in heat loss per dollar spent Dividing the reduction in heat loss from current to proposed into the cost of upgrading the component yields the cost optimization ratio expressed as bier n aie doo gets E Cost UA The smaller this value the better the option Note It should be stressed that these are comparative costs and not actual costs Cost differences known as incremental costs are the additional costs associated with any comparison of alternatives such as increased insula tion or heating system efficiency For a more complete explanation and reference table of incremental costs see Section V 6 Section WATTSUN allows changes in economic parameters There are certain assumed values called default values that WATTSUN will automatically use unless manually changed by the user while in the Economic Menu Default values can be customized and saved as part of the default values associated with the de fault building file specified under the Files Menu in the WAT TSUN prograin Parameters Default 1 Base cost of home 75 000 2 Oth
55. nt Brief descriptions of these programs are attached x Solar Energy Series C 3i da a nas Support provided by the SPO is defined as follows 1 Program manuals are available on request from SPO form attached 2 Guidance is provided on the use and application of the programs and on the thermodynamic principles of the programs in relation to solar system design 3 Guidance is provided on hardware configurations and access to the programs 4 The programs are maintained by the SPO as the most up to date versions available as recommended by the program authors or by SPO staff The SPO also uses the WATSUN Program and encourages others to do so The National Research Council has funded the establishment of a WATSUN User s Service at the University of Waterloo where the program originated It is the responsibility of the User s Service to provide access to and support for the program The SPO does not intend to duplicate the efforts of the WATSUN User s Service For further information on access to WATSUN contact L R Groves 519 885 6160 An information sheet on the use and application of WATSUN is attached For advice and assistance contact Kevin Ford Design Aids Engineer Solar Programs Office Public Works Canada Sir Charles Tupper Building Riverside Drive OTTAWA Ontario KLA OM2 Telephone 613 998 3641 cai A EDS RETE STO O np a AAA TT ESSN OES sense an reset SM n
56. nt Practice R 11 Type 1 R 11 Type 1 R 11 Type 1 R 19 Type 1 R 0 Type 2 R R R ONT Os C i CO PO R 0 Type 2 0 Type 2 0 Type 3 5 Type 3 10 R 5 Type 3 Al other cases of increments Floor Type Code 1 Crawl space Insulation under floor or overhangs 2 Slab below grade 3 Slab on grade 5 Slab foam insulation MCS R 19 Type 1 R 30 Type 1 R 38 Type 1 R 30 Type 1 R 5 Type 2 R 10 Type 2 R 15 Type 2 R 10 Type 3 R 10 Type 3 R 15 Type 3 A Table 2 By Types of Increments amp Standard S Mean Deviation Median Min Max Sample lt ft2 ft2 ft2 ft Size 0 13 0 08 0 31 0 02 054 61 0 40 0 42 0 30 0 11 303 48 0 37 0 11 0 40 0 11 0 47 9 0 32 0 17 0 27 0 14 0 67 12 0 60 0 41 0 43 0 07 1 14 12 1 02 0 85 0 76 0 04 2 76 9 1 52 0 57 122 1 17 218 3 1 49 0 77 1 36 0 46 312 16 0 80 0 29 0 22 0 36 142 12 8 97 15 53 2 91 0 12 36 50 5 0 71 1 83 0 21 0 64 11 80 67 For current practice Type 3 includes Type 5 For MCS Type 2 includes Type 5 Type 3 includes Type 5 R 5 indudes R 6 and R 7 R 10 includes R 7 R 8 and R 12 and R 19 includes R 20 v ES 4 X i i i i t j j 1 i Pt AEN A q Ne ES ID S Se poi Ie TE SET wien a z z Uu E E 3 Sie 4 Table 3 Incremental Costs Per Square Foot of Wall By Types of Increments Group Current No Practice MCS 1 R 11 Type 21 R 19 Type R 11 Type 21 R 24 Type R 11 Type 21
57. ocation most typical of your area Astoria OR Missoula MT Billings MT North Bend OR Boise ID Olympia WA Cutbank MT Pocatello ID Dillon MT Portland OR Glasgow MT Redmond OR Great Falls MT Salem OR Helena MT Seattle WA Lewiston ID Spokane WA Lewiston MT Whidbey Island WA Medford OR Yakima WA Miles City MT House Size WATTSUN will provide the most accurate results for heated floor areas of 850 3 350 ft2 in most cases this includes basements but not unheated garages The program will accept values from 500 ft to 3 350 ft2 Glazing Area The maximum glazing as a percentage of heated floor area i 20 percent WATTSUN will advise you when you are out of this range Rl ABT t 4 Section II Thermal Mass This Component Menu input is used for the energy budget calculation WATTSUN will provide the most accurate results when the thermal mass level is greater than or equal to 3 Btu F ft and less than or equal to 10 Btu F ft of heated floor area The program always assumes a minimum thermal mass of 3 Btu F ft2 Insulation Levels UA ft2 Heat loss per square foot of floor area ranging from 1 to 8 Btu ft2 can be accurately evaluated This range of insulation levels is found in new housing stock Other Thermostat settings are fixed at 65 F for Super Good Cents com pliance only internal gains heat from people and appliances are assumed to be 3 000 Btu hr Heating system efficienc
58. ol 1 2 in Metal Frase Dbl 1 2 in TIN Frame Dbl 1 2 in Wood Frame 49 Dbl 1 2 in Metal w Storm 48 Press lt Pgln gt to view next senu page or PgUp to view previous page U Value Area Cost ft2 UA Total Cost Construction Type Btu fto Fh ft ft2 Btu F hr curr Ob 1 4 in Metal Frame 0 750 168 0 0 00 126 0 0 00 prop Ddl 1 4 in TIM w Storg 0 440 168 0 2 55 73 9 420 40 SUMMARY FOR WINDOW No of Entries Total UA Total Cost current 1 125 0 0 00 proposed 1 73 9 428 40 FEED ERU ER SEE ee ee Press lt f gt or lt i gt to scroll component E to edit data lt ESC gt to quit To proceed to the Solar Menu press ESC Notice that you are now in the Effective Solar Glazing Menu This occurs when the window area in the building component is changed WATTSUN automatically takes the user to the So lar Menu to change the solar area There are additional inputs for solar area that you are asked for after entering window components You will need to enter the direction and area of the windows in your building For HT d sme uto inb Lg AS M P paese Pia Fo CPC pete this exercise you should enter the specifications from the exe ample worksheet You can always get back into the So Menu by going to the Main Menu and typing 5 This will be a useful for changing window areas and direction Rememb r the solar area in the Solar Menu must always be eq
59. ppy system Step 1 Label Your Blank Disks Label the two disks as follows Disk 1 Working Program Disk Drive A Disk 2 Working Data Disk Drive B 2 Section IV Step 2 Start Your System Place your DOS disk in drive A left side and switch on the power to your computer After about 30 seconds your system should boot load DOS Depending upon your system you may be requested to enter today s date and the current military time do so if requested The DOS prompt A gt should appear at the left side of your screen Step 3 Make a working copy of the WATTSUN Master Disk To make a working copy of the WATTSUN Master Disk you must first format the disk labeled Working Program Disk and copy your DOS software onto it This can be done by running the FORMAT program from your DOS disk in drive A Insert the Working Program Disk into drive B Enter the command be low and press the return key large key between the normal typewriter keys and the numeric key pad which has an arrow symbol pointing downwards and then to the left Enter FORMAT B S The FORMAT program will begin with the following prompt Insert new disk for drive b and strike any key when ready Press any key on the keyboard and the disk will be formatted and your DOS system will be copied onto it While processing the following messages and prompt will appear FORMATTING FORMAT COMPLETE System transferred 362496 bytes total disk space 40960 bytes
60. purchased from the User s service 3 Guidance is provided with respect to the thermodynamic models used for WATSUN Users may set up acounts to gain access to the program by contacting L R Groves WATSUN User Service Facility 415 Phillip Street WATERLOO Ontario N2L 3X2 Telephone 519 885 6160 ORDER FORM COMPUTER PROGRAM MANUALS i intend to use the following computer programs for the design and analysis of solar heating systems Please send a manual for each of the programs checked and register me as a user of those programs Name Title Organization Address City Province E AE S AEE AA on ERE Postal Code Telephone Number Computer Service Bureau Used Account Number L FCHART 4 1 145 pages ENERPUB 68 pages L VENTAIR 2 0 50 pages ASTEPl 41 pages eita top tir MP Aii O Hi ES ab RE JA vira sut Ma RT A NC MD MIB SUA Dh O Ax OD tn Axis word PISA aa ye VIS E ID EO VIA MOD ends UM TIED M S anis e Ma A Ms Ama o aa A MIS AMD Ca AES inia mi A a EO ARD Miis eA MD NA o xum A Msg O TD O E eC nts cx Return to Kevin Ford Design Aids Engineer Solar Programs Office Pubiic Works Canada Sir Charles Tupper Building Riverside Drive OTTAWA Ontario KIA OM2 WASHINGTON WAOENG 85 44 STATE ENERGY December 1985 OFFICE f f 400 East Union Olympia WA 98504 206 754 0700 WATTSUN Reference Manual Version 3 1
61. r any costs for the proposed home since both cases are the same You could continue adding more ceiling types using the J commands For this example however we have finished entering ceiling types Always check the component summary to see if all the types of ceil ings have been entered Press ESC Z7 nd ri rernm 36 Section IV You should see WATTSUN V3 1 MENU OF CEILINGS Number Construction Type U Value Btu ft2 Fh R 60 2x6 Joist Adv 018 R 60 2x4 Truss Adv 047 R 11 Vaulted 072 R 19 Vaulted 049 R 30 Vaulted 035 R 38 Vaulted 028 OTHER Press lt PgDn gt to view next menu page or lt Pgtp gt to view previous page CEILING No 2 U Value rea Cost ft UA Total Cost Construction Type Btu ft2 Fh ft ft Btu F hr curr R 30 Vaulted 0 035 409 0 0 00 14 3 0 00 prop R 30 Vaulted 0 035 409 0 0 00 14 3 0 00 SUMMARY FOR CEILING No of Entries Total UA Total Cost 57 4 0 00 52 4 126 00 ctp RS E E Press lt f gt or I to scroll component E to edit data lt ESC gt to quit Let s go back to the Building Component Menu to finish add ing the other building components Press ESC Now enter the last two building components air leakage con trol and thermal mass without directions Remember E to edit T for construction type C for costs and ESC to change menus A Note About Thermal Mass All residential buildings fall into one of the first thr
62. ract and record the doors and windows for each type of above grade wall from the gross above grade wall areas a Section HI 3 6 Measure and record the ft of crawl space floor and roof area Note These will be the same for homes with flat ceilings only 7 To calculate home volume multiply the ceiling height by the total floor area and record Note Add any additional cathe dral ceiling volume to that number only if the cathedral ceil ing is substantially leakier than the flat ceiling For example ceiling is car decking instead of sheetrock 8 Measure the ft of heated wood floor area and record Mea sure the ft of slab floor area and record Measure the number of gallons of water storage or ft of additional thermal mass and record 9 Measure and record the linear footage of below grade base ment wall basement only 10 Add windows in below grade basement walls to window tt in each direction Time Saving Tips Ask the builder to provide a window sched ule with the manufacturer model number direction and ft of each window included b door schedule with the manufacturer and model number c ft of heated floor area Input Worksheets An Example The following worksheet examples have been completed for the example run in the next chapter Blank worksheets for future use are included in Section 1X The Building Component Worksheet has all the building compo nent data The Input Worksheet has
63. s of below grade walls as above grade wall te ig 10 11 12 Section HI Use the linear footage LF of all below grade wall but not the daylight basement wall Record the area of glass in each direction do not include skylights Total heated floor area ft should include all heated floor area such as heated basements heated greenhouses heated garages etc Record LF of slab on grade and include the exposed portion of daylight basement slab Record LF of ductwork and furnace duct size in unheated space Record ft of above grade exterior masonry walls including exterior fireplace walls and uninsulated above grade basement walls Acquire net wall area by subtracting windows and doors from gross wall areas of that component Don t forget odd walls band joist areas and knee walls to at tics crawl spaces How to Get the Information You Need From a Blueprint 1 Measure and record the linear footage LF of exterior founda tion wall or slab for each type of above grade wall in home include daylight basement walls Multiply the above values by the height of that type of above grade building wall to get the gross wall area above grade Determine and record the ft of doors Determine and record the ft of windows for each house di rection i e north south east west for each type of window i e double glazed triple glazed etc Subt
64. ss lt ESC gt to New value Enter new value or Current Mortgage rate X 12 1 BASE 2 0THER 3 MARKUP 4 RATE S TERM 6 XDOWN 7 s TAX 8 RE TAX S INS INC 0 8 pressing continue by this agrees with our worksheet ESC Since gne Seele uu Re 44 Section IV Check all the economic assumptions When finished the Eco nomics Menu should look like this Current Proposed BASE PRICE 77 000 00 77 000 00 INCREMENTAL COSTS Envelope Improvements i Heating System Equipment 1 000 Builder Mark up 0 Other 0 TOTAL INCREMENTAL COST 1 200 00 TOTAL PRICE BASE INCREMENTAL 78 200 00 81 401 56 MONTHLY PAYMENT Principal Interest 723 94 753 58 Property Taxes 65 47 57 83 Insurance 65 17 67 83 Income Tax Deduction 223 03 232 99 Energy 40 67 15 35 TOTAL MONTHLY PAYMENT 571 11 671 61 30 YEAR LIFE CYCLE COST 85 319 35 84 711 95 Press number of menu choice or lt ESC gt to hl cM D E LL MM EO ao IBASE 2 OTHER S HARKUP A RATE 5 TERM 6 KOOWN 7 INC TAX 8 RE TAX 9 INS 0 KRH Now that the menus have been completed return to the Main Menu by pressing ESC i i i i i BW o pon Portland 8 5 o qua E 1 400 fte E DUAL IFICATION CRITERIA a Proposed j Mergal P Pepforsance ptu fte of floor 0 36 0 225 jg Energy Budget kW ft2 of Floor 16 HEATING SYSTEN Heating System S
65. t EADEM MG o al capa Art SE ia ePaper tton Edd rie fie OT etam a ev NE AE You should see va gt MATTSUN V3 1 BUILDING COMPONENT MENU meee CURRENT PROPOSED E Uc Up UAC UAp INC COST COST UA 1 BELOW GRADE WALL FLOOR 0 0 0 0 0 0 0 00 2 SLAB ON GRADE 00 0 0 0 0 0 00 3 CRAWL SPACE FLOOR 00 0 0 0 0 0 0 4 ABOVE GRADE WALL 00 00 0 0 0 00 5 WINDOM 0 0 90 0 0 0 0 00 6 DOOR 00 00 0 0 0 00 7 SKYLIGHT 00 0 0 0 0 0 0 8 CEILING 00 0 0 00 0 9 AIR LEAKAGE CONTROL 0 0 00 0 0 0 O THERMAL MASS 00 00 0 00 TOTALS 00 o0 0 0 0 00 0 08 8tu QUALIFICATION CRITERIA Current Proposed Thermal Performance Btu ft2 floor Energy Budget kWh ft2 of floor 0 00 Press number of menu choice or lt ESC gt to RR MAX QUO INI EME OMEN 1 BASMNT 2 SLAB 3 CRHLSPC 4 WALL 5 WNDON 6 000R 7 SKYLIT B CEILNG 9 INF 0 MASS You should now be in the Building Component Menu You can always get into the Building Component Menu by typing number 2 while in the Main Menu Remember that if you want to do an economic analysis you will need to enter information on both the current and pro posed home If you are checking compliance with Super Good Cents or relevant energy codes you need only to enter that home s insulation levels and areas as the current home For each component 10 different construction type components can be entered
66. thermal analysis portion of WATTSUN consists of two main parts 1 a menu driven building component description routine and 2 an energy calculation routine The Component Menu of WATTSUN prompts the user for the types and areas of thermal components in a home WATTSUN adds up the heat loss from all the specified building thermal components and calculates the heat loss coefficient UA in Btu hr F It then divides the UA by the ft of heated floor area in order to provide the component thermal performance UA ft as an option for Super Good Cents thermal compliance Another option is the energy budget This thermal analysis rou tine of WATTSUN was derived from thousands of computer sim ulations and curve fit correlations that were developed by Ecotope for the Bonneville Power Administration To calculate the energy budget the user must specify the house location heated floor area glazing area and thermal mass in addition to the Component Menu information The energy budget kWh ft2 yr is defined as the number of kWh used to space heat a ft of heated floor area in one year AUN pe pitada Section ii 3 Location Compliance with the Northwest Power Planning Council s Model Conservation Standards can be evaluated using Portland Zone 1 lt 6 000 HDD Spokane Zone 2 6 000 HD 8 000 Missoula Zone 3 gt 8 000 HDD The following cities weather data can be run with WATTSUN Otherwise use the l
67. tside Winter Design Temperature TABLE A buct Fr 9 E TO F RS lr TABLE B Duct Heat Lose Calculation DUCT UMEAL TABLE A HEAT LOSS RUM PRET VALUE BTU HA F i i m 2 a IE Sum LIMES 1 FOTAL OUCT LOSS Ralat lo Duct Heal Loss Sechoa IV fo matochons n tbe vos ol Tables aod B i SectionIV 1 WATTSUN 3 1 What You Will Need to Start 1 An IBM Personal Computer PC XT or AT Compaq or other 100 percent compatible system 2 256K of random access memory RAM 3 Two 5 1 4 floppy disk drives double sided double den sity or one hard disk and one 5 1 4 floppy disk drive 4 Any 80 column dot matrix or letter quality printer 5 A diskette containing version 2 0 or greater of DOS nor mally purchased along with your computer system 6 The WATTSUN Master Disk which accompanies this manual 7 Two blank floppy diskettes for dual floppy systems only Dual Floppy Disk Systems Before using the WATTSUN program it is important for you to make a working copy of the original master disk a working data disk and a back up data disk Never use the original WATTSUN Master Disk for normal operation of the program The steps re quired to make working copies are different for dual floppy and hard disk systems The following are the instructions for making working disks for use on a dual flo
68. ual to or less than the window area in the Building Component Menu You can check this by comparing the total solar area to the to tal glazing area entered for UA for both current and proposed Remember to always change the window and wall area of the Component Menu prior to changing the Solar Menu Note WATTSUN solar inputs assume that all windows are un shaded This tends to underestimate energy use and energy savings The no shading assumption is acceptable for deter mining Super Good Cents compliance From our example worksheet enter the window areas for ch direction in the current and proposed home by specifying the number corresponding to the direction the windows face and that area for all directions in both cases l 28 Section IV Remember to use the HOME key to switch between cases if differences exist between the current and proposed cases al though we needn t do this in the example run After entering ali the solar information you should see WATTSUN 3 1 EFFECTIVE SOLAR GLAZING Calculating effective solar glazing for Portland 0A CURRENT PROPOSED ORIENTATION Area South Southeast East Northeast North Northwest West Southwest oR eRe od c 0 Q Oc c Oc cc f 2 3 4 5 6 7 8 TOTAL SOLAR AREA TOTAL GLAZING AREA ENTERED FOR UA X of Floor rea Xof Floor 168 00 2 0 168 00 Press number of menu choice or SO to quit Ds pEM MAE UEM ne ee rr i
69. xpress or implied or assume any liability for the accuracy completeness or usefulness of this product Actual energy consumption will vary due to differences in climate occupant lifestyle and construction details Do you want help with the senus y n The program asks you if you want help Enter Y RET DE oir upto e a le Trid Raa dfe oue adea o ote unns After a short pause you should see WATTSUN V3 1 HAIN MENU House ID Council Prototype Ranch Utility Bonneville Power Adain Mouse Site 1002 ME Holladay Analyst Harris Builder Master Builders Location Portland OR Hoseower Joe Regional Average Floor Area 1 350 ft QUALIFICATION CRITERIA Current Proposed Thermal Performance Btu ft2 of floor Energy Budget kWh ft2 of floor HEATING SYSTEX Heating System Size in kBtu hr kk 28 5 8 5xM 17 5 5 5kW Total Annual Auxiliary Space Heat fkih B 822 3 023 ECONOMICS First Year Monthly PITItEnergy no 701 68 685 47 30 Year Life Cycle Cost 88 448 14 85 742 11 Press number of menu choice or lt ESC gt to quit Ea 1 1 2 COMPONENT 3 AREA 4 LOCATION 5 SOLAR 6 ECON 7 HEAT SYS 8 PAINT 9 FILE You should be in the Main Menu with information from the de fault home shown You can edit this default file or you can create your own new file as in the following example um af a Et EE fo 12 Se ti IV WATTSUN Example
70. y place the Work ing Data Disk in drive A and the Back Up Data Disk in drive B then press any key This will copy the contents of the working copy to the back up copy Note that the former con tents of the back up disk will be overwritten When asked if E MEL AE teresa 3 ice cara a e Tr era FA EAM am meme 50 Section IV another disk is to be copied enter N for no then press return At the A gt prompt remove data disks and put them in a safe place Summary of File Commands Command Explanation of Command LOAD Loads the file you specify from the current direc tory disk into the WATTSUN program SAVE Saves a file that you have created and named to the current directory Directories A Drive A B Drive B C Hard Disk NEW Creates a new file which blanks out any default in formation presently in the WATTSUN program and leads you through a preprogrammed data entry se quence DRIVE Allows you to specify or change which directory WATTSUN loads building files from i e A B or C DEFAULT The operator can edit default files although it is not recommended Editing Existing Files All commands for editing files are the same as shown in the new file example When editing a building file the user moves into menus from the Main Menu by selecting the appropriate number for the desired menu To exit a menu the user presses the ESC key and the program will return to the Main Menu Tim
71. y Budget Energy Budget HSPF 75 3 413 Step 3 Indicate the heat pump energy budget and the HSPF of that heat pump on the WATTSUN printout Step 4 If the heat pump energy budget is less than or equal to the Super Good Cents energy budget specifica tions the home meets Super Good Cents specifica tions Tip Remember Super Good Cents specifications call for all duct work in unheated space to be insulated to R 11 3 1 2 of fi berglass batt peitos Section VI 1 Bibliography These resources were instrumental in the development of WATTSUN Version 3 1 A Simplified Method for Determining Below Grade Heat Loss DannysS Parker Northwest Power Planning Council Helena MT 1985 Conversations with Jeff Harris of Bonneville Power Administra tion June through November 1985 Handbook of Fundamentals American Society of Heating Refrig eration and Air Conditioning 1985 The Model Conservation Standard Energy Budget Approach Handbook Washington State Energy Office Ecotope and Bonneville Power Administration January 1984 Watt Sun Volume 1 User Manual Washington State Energy Of fice March 1984 td pois SR ES Tt ii SPEER ene eg tt c PER RATE S CUDWXMerar aes pa ub nt DEC rias RIDES Front ait e n Me cc ven yei met REE vA s Secti n Viii Summary of Commands WATTSUN 3 1 Commands for Data Entry ESC Takes you back to previous scre
72. y is as sumed to be 100 percent including ductwork Thermostat set tings heating system efficiency and heating duct heat loss can be changed by the user only when evaluating space heating use for the heating system economics portion of the program Economics Economic analysis can be an excellent marketing tool It also al lows the user to design the most efficient home for the least rela tive cost while still complying with the thermal requirements of Super Good Cents or relevant energy codes WATTSUN will advise you when you are out of this range jew 3 eae Pe x A DUE Section II 5 An economic comparison of two homes current and proposed can be accomplished if the home s heating system types efficien cies component insulation levels areas and cost differences are entered in the Component Menu WATTSUN does three eco nomic analyses 1 The life cycle cost LCC of the current and proposed homes is calculated LCC is the total cost to purchase maintain and heat a home including property taxes insurance and income tax interest deductions expressed in today s dollars and calcu lated over the home s expected life m The first year s average monthly payments for the current and proposed home are calculated This provides the user with in formation on the increase or decrease in first year cash flow x This information can be especially helpful to the lending insti tution which may evaluate the homeow
73. ystem Equipment 1 000 00 Builder Mark up 200 00 Other 0 00 TOTAL INCREMENTAL COST 1 200 00 TOTAL PRICE BASECINCREMENTAL 76 200 00 79 401 56 MONTHLY PAYMENT Principal Interest 705 42 735 06 Property Taxes 127 00 132 34 Insurance 63 50 55 17 Income Tax Deduction 230 81 240 50 Energy 40 67 15 35 TOTAL MONTHLY PAYMENT 705 78 708 42 30 YEAR LIFE CYCLE COST 89 042 06 88 676 10 Press number of menu choice or lt ESC gt to quit ES o mena E iene dan ee ERRORI IBASE 2 OTHER 3 MARKUP A RATE 5 TERM 6 1DOKN 7 INC TAX 8 RE TAX 9 INS 0 S KWH From our example worksheet enter the economics assump tions 1 10 To enter the base price of the current and pro posed home excluding heating equipment and incremental costs enter 1 RET 77000 RET pions the numbe i cass m i ng Y air press e reconomi other eet by p h teth ork A anchetk l ie Yo with ou assi pU 3 You should see WATTSUN V3 1 ECONOMICS EN INCRENENTAL Gos NTAL Cost v s Pa S i iipseit 10 rep i venents ew Heating System Builder 7 1 1S nvef pe inpro Other TOTAL n TOTAL PRICE BASEFTNCRENENTAL MONTHLY PAYMENT Interest Property Taxes Income Tax Deduction Energy Principal Insurance TOTAL MONTHLY PAYMENT 30 YEAR LIFE CYCLE COST pre

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