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Appendix B "Model Standard for New Structures," Appendix J, Regional Conservation and Electric Power Plan, Section 305, Table 3-1. Ventilation (Draft, 1983). i

DRAFT REGIONAL CONSERVATION AND ELECTRIC POWER PLAN APPENDIX 3 3anuary 26, 1983 Errata Corrected February 15, 1983 Northwest Power Planning Council 700 S. W. Taylor Portland, Oregon 97205 i

. w MODL STANDARD FOR NEW STRUCNRES Outline of Contents by Chapter and Sections CHAPTER 1. ADMINISTRATIVE SEC. 100. Title .............................................. :....... 1 101. Purposes and Policies .••..••..•••.•••••••••.•••••...:••••••. 1 102. Scope . . . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . ... . . ... . . . . . . 2 -103. Application to Existing Buildings ••••••••••••••••••••••.•••••• 2 ' 104. Materials and Equipment • • • . • . • • . • . . . . . . . . . • • . . . . . . . . . . . . . •. 3 1-05. Plans and Specifications ................................... •• 3 106. Details .................................................... 3 107. Enforcement and Inspections ••••••••••••••••••••••••••••••••• 4 108. Validity ................................................... 4 109. Violations and Penalties ••••••••••••••••••••••••••••••••••••• 4 110. Liability ................................................... 5 CHAPTER 2. DEFINITIONS SEC. 200. General ................................................... 6 201.-223. A - Z ...................................:................. 6 CHAPTER 3. DESIGN REQUIREMENTS SEC. 300. 301. 302. 303. General ...................................................16 ..........................................................16 ..........................................................16 (Reserved) ................................................. 16 304. Design Parameters ........... •........... •................. 16 305. Ventilation ................................................16 306. Methods of Compliance ••••••••••••22 CHAPTER 4. BUILDING DESIGN BY COMPONENTS PERFORMANCE APPROACH General ....................................................23 (Reserved) .............. ...................................23 Overall Thermal Performances •••••••••••••••••••••••••••••••23 Thermal Performance Criteria for Low-Rise Residential Buildings •••••••••••••••••••••••••••••••23 404. Thermal Performance Criteria for All Other Buildings ... 27 405. Air Leakage for All Buildings ••••••••••••••••34 406. Building Mechanical Systems •••••••••••••••••••••••••••36 407. Calculations of Heating and Cooling Loads ••••••••••••••••••36 408. Infiltration ................................................36 409. Simultaneous Heating and Cooling ••••••••••••••••••••••••••••36 410. Energy Recovery ...........................................37 • 411. HVAC Equipment Performance Requirements ................. • 37 412. Energy for Air Delivery •••••••••••••••••••••••••••••••••••••45 413. Balancing ................................................. 45 414. Cooling with Outdoor Air (Economizer Cycle) .................. 47 415. Controls ..................................................47 416. Air Handling Duct System Insulation ..................... • • ... 49 417. "Duct Construction ••••••••••••••••••••••••••••••••••••••••••49

. ' ~ MODF~ STANDARD FOR NEW STRUCTi~'S t (Continued ~) SEC. 418. Piping Insultation ...... •••••••••••.................... ••.•••49 419. Service Water Heating ••••••••••••••S7 420. Water Heaters, Storage Tanks, Boilers, and Piping • • • • • • • • • • • • • • S7 421. Pump Operation ............... ............ ......... .:......59 422. . (Reserved) .......................................... _......59 423. Conservation of Hot Water ••••••••••••••••••••••••••••••••••S9 424. Electrical Power - General ••••••••••••••••••••••••••••••••••60 -425. Electrical Distribution ••••••••••••••••••••••••••• 426. Lighting Power_Budget •.•......•. CHAPTER S. BUILDING DESIGN BY SYSTEMS ANALYSIS AND BUILDING UTILIZING NONDEPLETABLE ENERGY SOURCES SEC. 300. General ............... ******a.*-*-65 301. Energy Analysis ........ .....................................65 302. Design ....................................................65 303. Analysis Procedure •....•........• .................... •..... 65 504. Calculation Procedure •••••••••••••••••••••••••••••••67 505. Documentation .............................................67 506. Buildings Utilizing Nondepletable Energy • ...... • ............ 048 507. Documentation - Buildings Using Nondepletable Energy Sources •• 68 CHAPTER 6. PRESCRIPTIVE REQUIREMENTS APPROACH SEC. 600. General .............................................:.....69 601. Building Envelope Requirements ••••••••••••••••••••••••••••••69 602. Building Mechanical Systems - General ••••••••••••••••••••••••78 603. Service Water Heating ••••••••••••••••••••••••••••••••••••••80 ~._ .. L ----

0 Chapter 3 DE.SIGN REQUIREMENTS c Section 300. General. This chapter establishes the criteria for design of the exterior envelope of buildings and for design of the HVAC systems and its parts, -a~nd establishes the minimum requirements for ventilation air quality and for the minimum outdoor air quantities for ventilation. - _ Section 301. A building designed to be both heated and cooled shall meet the more stringent of the heating or cooling requirements provided in this code. - Section 302. A design feature of a building for energy conservation shall not be approved if it would create conditions of accelerated deterioration from moisture condensation. 'Section 303. (Reserved) Section 304. Design Parameters. The following design parameters shall be used for calculations required under this Standard. a. The heating or cooling design temperatures shall be selected from the latest edition of the ASHRAE Handbook of Fundamentals. Winter design temperatures shall be selected from the 97.5% column. Summer design dry-bulb and wet-bulb temperatures shall be selected from the 5% column. b. Indoor design temperature shall be 70oF. for heating and 78oF. for cooling. _ c. Indoor design relative humidity for heating shall not exceed 30 percent. For cooling, new energy shall not be used to control relative humidity in the range between 30 percent and 70 percent. Section 305. Ventilation. This Energy Standard specifies air quantities only. For all other requirements see the Mechanical Code. per minute (cfm) per person. a. Minimum Outdoor Air Requirements for Ventilation. The minimum requirements for operable window area to provide natural ventilation are specified in the building code. If a mechanical ventilation system is provided in lieu of operable windows for natural ventilation air shall be as specified in this section. In areas of building where smoking is permitted, the outdoor air quantities provided shall not be less than the smoking values listed in Table 3-1. In areas of buildings where smoking is prohibited, the outdoor air quantities provided shall not be less than the non-smoking values listed in Table 3-1. In no case shall the outdoor air supplied be less than 5 cubic feet b. Heating and/or Cooling Equipment Sizing. The maximum outdoor air quantities allowed for the purpose of sizing heating and/or cooling equipment shall not exceed the smoking values given in Table 3-1. -16- . . . . ..

. ~ ~ IC;-U TABLE 3-1 C, OUTDOOR AIR REQUIREMENTS FOR VENTILATION . Commercial Facilities (Offices, stores, shops, hotels, sports facilities, etc.) Dry Cleaners and Laundries efm/person Commercial 10 - 15 3 Storage/pick-up areas 30 35 10 Coin-operated laundries 20 35 15 Coin-operated dry cleaning 20 - 15 3 Food & Beverage Services ~ Dining rooms 70 35 7 Kitchens 20 - 10 Cafeterias, fast food facilities 100 35 7 Bars and cocktail lounges 100 50 10 Garages, Auto Repair Shops, Service Stations cfm/ft2 floor 4 ' Par ing garages enclose - 1_._5_ 1.5 Auto repair workrooms (general) - 1.5 1.5 Hotels, Motels, Resorts, Dormitories, and Correctional Facilities cfm/room 5 Bedrooms (single, double 5 30 15 6 Living rooms (suites) 20 50 25 6 • Baths, toilets (attached to bedrooms) 50 50 7 cfm/person Lobbies 30 15 5 Conference rooms (small) 30 35 7 Assembly rooms (large) 120 35 7 Gambling casinos 120 35 7 Offices .~.. Office space 7 20 5 ,.,. .. Meeting & waiting spaces 60 35 7 3rjr Public Spaces cfm/ft2 floor Corridors & utility rooms 0.02 0.02 cfm/stall or urinal Public restrooms 100 75 cfm/locker Locker & dressing rooms 50 35 15 Est. Persons - per 1,000 ft.2 . Use if Design _ Occupancy Outdoor Air Requirements2 Type -of Occupancyl Is Unknown Smoking Smokin Notes

» \ TABLE 3-1 (Continued) C Est. Persons per 1,000 ft.2 Use if Design Occupancy utdoor Air Requirements2 Type of Occupancyi Is Unknown Smokin Sm. oking Notes Retail Stores cfm/person Sales floors & showrooms Basement & street floors 30 25 5 Upper floors 20 25 5 Storage areas (serving sales and storerooms) 15 25 5 Dressing rooms - 25 5 Malls & arcades 20 10 5 Shipping & receiving areas 10 10 5 Warehouses 5 10 5 Elevators - - 15 Smoking rooms 70 50 - Speciality Shops cfm/person Barber & beauty shops 25 35 20 Reducing salons, health spas (exercise rooms) -20 - 15 Florists 10 25 5 8 Show repair shops (combined workrooms/trade areas) 10 15 10 cfm/ft2 floor Pet shops - 1 1 Sports & Amusement Facilities cfm/person Ballrooms & discos 100 35 7 Bowling alleys (seating area) 70 35 7 Playing floors (e.g., gymnasiums, ice arenas) 30 - 20 9 Spectator arenas 150 35 7 Game rooms (e.g., cards & billiards rooms) 70 35 7 Swimming pools cfmlft2 area Pool & deck areas - - 0..5 ! 0 cfm/person Spectators area 70 35 7 Theatres cfm/person Ticket booths - 20 5 Lobbies, foyers & lounges, & auditoriums in motion picture theatres, lecture, concert & opera halls ' 50 5 7 Stages, TV & movie studios 70 - 10 11 p w ~ -18- C~1N ~ a7 ~

4 C TABLE 3-1 (Continued) C Persons Est . per 1,000 ft.2 Use if Design Occupancy Outdoor Air Requirements2 Type of Occupancy 1 Is Unknown Smoking Smoking Notes Transportation Waiting rooms, ticket & baggage areas, corridors & gate areas, platforms, - concourses 150 35 7 12 Workrooms cfm/person 13 Meat processing rooms 10 - 5 Pharmacists' workroom 20 - 7 Bank vaults 10 - 5 Photo studios Camera room, stages 10 - 20 cfm/ft2 floor Duplicating & printing rooms - 0.5 14 Institutional Facilities (Educational facilities, hospital, nursing & convalescent homes) Educational Facilities cfrrm/person Classroom 30 25 5 Laboratories 30 - 10 15 Training shops 30 35 7 Music rooms 50 35 7 Libraries 20 - 5 Hospital, Nursing & Convalescent Homes cfrn/bed 16 Patient rooms 10 35 7 cfm/person Medical procedure areas 10 35 7 17 Operating rooms, delivery rooms 20 - 40 17 Recovery & intensive care rooms 20 - 15 17 Autopsy rooms 20 - 100 18 Physical therapy areas 20 - 15 O CJ Q -19- W V H ~ ~ i

h . TABLE 3-1 (Continued) Est. Persons per 1,000 ft.2 Use if Design Occupancy Type of Occupancy 1 Is Unknown c- Outdoor Air Requirements2 Smokin Smokin Notes Residential Facilities (Private dwelling places, single or multiple, low or high rise) Residential Facilities cfm/room 19 General living areas 10 20 Bedrooms 10 20 All other rooms 10 20 . Kitchens 100: 20,21 Baths, toilets 50 20,21 Garages (separate for each cfm/car space dwelling unit) 100 cfm/ft2 floor Garages (common for several units) 1.5 , Industrial Facilities Industrial Facilities cfm/person 22 High activity level (2.5 met) 35 20 23,24 Medium activity level (2.0 met) 35 10 23,24 Low activity level (1.5 met) 35 7 23,26 1. In the case of an occupancy type not specifically mentioned, the requirements shall be determined by the building official based on the most comparable occupancy type specified. 2. These values are based on ASHRAE Standard 62 "Ventilation for Acceptable Indoor Air Quality". A blank (-) indicates that smoking or nonsmoking in a•space should not occur. In these instances for the purposes of this Energy Code, the corresponding smoking or non-smoking maximum value shall apply. 3. Dry cleaning processes may require more air. 4. Distribution must consider worker location and concentration of running engines; stands where engines are run must incorporate systems for positive engine exhaust withdrawal. 5. See also food and beverage services, merchandising barber and beauty shops, garages. 6. Independent of room size. 7. Independent of room size: installed capacity for intermittent use. p -20- i

_ , S . . . . 8: Ventilation to optim3..- plant growth may dictate requireents. 9. When internal combustion engines are operated for maintenance of playing surfaces, increased ventilation rates will be required. 10. Higher values may be required for humidity control. 11. Special ventilation will be needed to eliminate special stage effects (e.g. dry ice vapors, mists, etc.) 12. . Ventilation within vehicles will require special consideration. 13. Spaces maintained at'low temperatures (-10oF to +S0oF) are not covered by these requirements unless the occupancy is continuous. Ventilation from adjoining spaces is permissible. When the occupancy is intermittent, infiltration will normally exceed the ventilation requirement. 14. Installed equipment must incorporate positive exhaust and control (as required) of undesirable contaminants (toxic or otherwise). 15. Special contaminant control systems may be required for processes or functions including laboratory animal occupancy. 16. Special requirements or codes and pressure relationships may determine minimum ventilation rates and filter efficiency. 17. Procedures generating contaminants may require higher rates. 18. Air shall not be recirculated into other spaces. 19. Operable windows or mechanical ventilation systems shall be provided for use when occupancy is greater than usual conditions or when unusual contaminant levels are generated within the space. 20. Ventilation is independent of room size. 21. Installed capacity for intermittent use. 22. Occupational safety laws usually regulate process ventilation requirements. The followign list gives the requirements for the occupants only. 23. 1.0 met = sedentary activity level = 18.4 Btu/h•ft2 body surface. 24. Mining, foundry, etc. .25. Automotive repair, assembly liae, etc. 26. Laboratory work, light assembly, etc. ~ -21- C.: .z. N ~ CD i