(Effective Until July 1, 2010.)
WAC 51-11-0302   Thermal design parameters.  


     302.1 Exterior Design Conditions: The heating or cooling outdoor design temperatures shall be selected from 0.6 percent column for winter and 0.5 percent column for summer from the Puget Sound Chapter of ASHRAE publication "Recommended Outdoor Design Temperatures, Washington State, ASHRAE." (See also Washington State Energy Code Manual.)


     302.2 Interior Design Conditions:


     302.2.1 Indoor Design Temperature: Indoor design temperature shall be seventy degrees F for heating and seventy-eight degrees F for cooling.


EXCEPTION: Other design temperatures may be used for equipment selection if it results in a lower energy usage.

     302.2.2 Humidification: If humidification is provided during heating, it shall be designed for a maximum relative humidity of thirty percent. When comfort air conditioning is provided, the actual design relative humidity within the comfort envelope as defined in Standard RS-4, listed in Chapter 7, shall be selected for minimum total HVAC system energy use.


     302.3 Climate Zones: All buildings shall comply with the requirements of the appropriate climate zone as defined herein.


     ZONE 1: Climate Zone 1 shall include all counties not included in Climate Zone 2.


     ZONE 2: Climate Zone 2 shall include: Adams, Chelan, Douglas, Ferry, Grant, Kittitas, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, and Whitman counties.



[Statutory Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, § 51-11-0302, filed 12/19/90, effective 7/1/91.]






(Effective July 1, 2010.)
WAC 51-11-0302   Thermal design parameters.  


    
     302.1 Exterior Design Conditions: The heating or cooling outdoor design temperatures shall be selected from Table 3-1.


     302.2 Interior Design Conditions:


     302.2.1 Indoor Design Temperature: Indoor design temperature shall be seventy degrees F for heating and seventy-eight degrees F for cooling.


EXCEPTION: Other design temperatures may be used for equipment selection if it results in a lower energy usage.

     302.2.2 Humidification: If humidification is provided during heating, it shall be designed for a maximum relative humidity of thirty percent. When comfort air conditioning is provided, the actual design relative humidity within the comfort envelope as defined in Standard RS-4, listed in Chapter 7, shall be selected for minimum total HVAC system energy use.


     302.3 Climate Zones: All buildings shall comply with the requirements of the appropriate climate zone as defined herein.


     ZONE 1: Climate Zone 1 shall include all counties not included in Climate Zone 2.


     ZONE 2: Climate Zone 2 shall include: Adams, Chelan, Douglas, Ferry, Grant, Kittitas, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, and Whitman counties.
TABLE 3-1

OUTDOOR DESIGN TEMPERATURES
  Outdoor Design Temp. (in °F) Outdoor Design Temp. (in °F)
Location (heating) (cooling)
Aberdeen 20 NNE 25.0 83
Anacortes 24.0 72
Anatone -4.0 89
Auburn 25.0 84
Battleground 19.0 91
Bellevue 24.0 83
Bellingham 2 N 19.0 78
Blaine 17.0 73
Bremerton 29.0 83
Burlington 19.0 77
Chehalis 21.0 87
Chelan 10.0 89
Cheney 4.0 94
Chesaw -11.0 81
Clarkston 10.0 94
Cle Elum 1.0 91
Colfax 1 NW 2.0 94
Colville AP -2.0 92
Concrete 19.0 83
Connell 4 NNW 6.0 100
Cougar 5 E 25.0 93
Dallesport AP 14.0 99
Darrington RS 13.0 85
Davenport 5.0 92
Edmonds 24.0 82
Ellensburg AP 2.0 90
Elma 24.0 88
Ephrata AP 7.0 97
Everett Paine AFB 21.0 79
Forks 1 E 23.0 81
Glacier RS 13.0 82
Glenoma (Kosmos) 18.0 89
Goldendale 7.0 94
Grays River Hatchery 24.0 86
Greenwater 1.4 84
Grotto 21.0 84
Hoquiam AP 26.0 79
Inchelium 2 NW 0.0 92
John Day Dam 19.0 100
Kent 21.0 85
Kirkland 17.0 83
La Grande 23.0 88
Leavenworth -3.0 93
Little Goose Dam 22.0 101
Long Beach 3 NNE 25.0 77
Longview 24.0 87
Lower Granite Dam 14.0 98
Lower Monument Dam 18.0 103
Marysville 23.0 79
Metaline Falls -1.0 89
Methow 2 W 1.0 89
Nespelem 2 S -4.0 93
Newhalem 19.0 89
Newport -5.0 92
Northport 2.0 92
Oak Harbor 16.0 74
Odessa 7.0 100
Olga 2 SE 24.0 71
Olympia, AP 17.0 85
Omak 2 NW 3.0 90
Oroville 5.0 93
Othello 9.0 98
Packwood 16.0 90
Plain -3.0 89
Pleasant View 16.0 98
Pomeroy 3.0 95
Port Angeles 28.0 75
Port Townsend 25.0 76
Prosser 12.0 97
Puyallup 19.0 86
Quilcene 2 SW 23.0 83
Quinault RS 25.0 84
Rainier, Longmire 15.0 85
Paradise RS 8.0 71
Raymond 28.0 81
Redmond 17.0 83
Republic -9.0 87
Richland 11.0 101
Ritzville 6.0 99
Satus Pass 10.0 90
Seattle: Sea-Tac AP 24.0 83
Sedro Woolley 1 E 19.0 78
Sequim 23.0 78
Shelton 23.0 85
Smyrna 8.0 102
Snohomish 21.0 81
Snoqualmie Pass 6.0 80
Spokane AP 4.0 92
Spokane CO 10.0 96
Stampede Pass 7.0 76
Stehekin 3 NW 12.0 85
Stevens Pass 6.0 77
Tacoma CO 29.0 82
Tatoosh Island 31.0 63
Toledo AP 17.0 84
Vancouver 22.0 88
Vashon Island 28.0 78
Walla Walla AP 6.0 96
Waterville 1.0 88
Wellpinit 1.0 93
Wenatchee CO 10.0 92
Whidbey Island 11.0 71
Willapa Harbor 26.0 81
Wilson Creek 3.0 96
Winthrop 1 WSW -12.0 91
Yakima AP 11.0 94




[Statutory Authority: RCW 19.27A.025, 19.27A.045. 10-03-115, § 51-11-0302, filed 1/20/10, effective 7/1/10. Statutory Authority: RCW 19.27A.020 and 1990 c 2. 91-01-112, § 51-11-0302, filed 12/19/90, effective 7/1/91.]


NOTES:

     Reviser's note:  Notice of Objection: The Joint Administrative Rules Review Committee (Committee) finds that, in adopting the 2009 proposed changes to the State Energy Code, Chapter 51-11 WAC, on November 20, 2009, the State Building Code Council (Council) failed to comply with all requirements of the law and failed to adequately respond to the Committee's request for additional economic impact and cost-benefit analyses prior to adoption.

     On October 1, 2009, the Committee found that the Small Business Economic Impact Statement (SBEIS) for the proposed changes filed with the Code Reviser failed to comply with all requirements of law. The Committee requested that the Council conduct a cost-benefit analysis pursuant to RCW 34.05.328 and amend the SBEIS to provide additional economic impact information, including an estimate of the number of jobs that would be created or lost as a result of compliance with all the proposed rules, as required by RCW 19.85.040 (2)(d).

     The Council provided the Committee with information and data on November 18, 2009. On December 2, 2009, the Committee found that the Council failed to adequately respond to the Committee's request for additional data. Specifically, the Committee found that the Council failed to amend the SBEIS to (a) estimate the number of jobs that would be created or lost as a result of compliance with the proposed changes; and (b) support the SBEIS with a detailed and rigorous costs analysis of the cumulative impact of all the changes. In addition, the Committee found that the Council failed to provide the Committee with a cost-benefit analysis of the proposed changes and pursuant to the requirements of RCW 34.05.328.

     The Committee strongly supports a process that makes thoughtful and informed progress towards changes that result in improved energy efficiency in our buildings, wherever practicable. While the Council worked diligently, it is the opinion of the Committee that the Council did not fully develop and consider the economic impacts and costs versus benefits of these significant changes to our Energy Code. Furthermore, it is the opinion of the Committee that the Council and the Legislature need this information to fully evaluate the value, impacts, and consequences of the proposed codes, with due diligence to their respective fiduciary responsibilities, in order to create the best informed public policy.

     As a result, the Committee recommends that the Governor suspend the adoption and implementation of the changes to the Energy Code, Chapter 51-11 WAC, adopted by the Council on November 20, 2009, until such time as a more adequate analysis has been completed and considered by the appropriate bodies.

     For all of the above stated reasons, the Committee objects to the changes to the State Energy Code, Chapter 51-11 WAC, that were adopted by the Council on November 20, 2009, and hereby directs the Code Reviser, pursuant to RCW 34.05.640(4), to publish this Notice of Objection in the Washington State Register and along with any publication in the Washington Administrative Code of changes to Chapter 51-11 WAC that were adopted by the Council in 2009 and filed with the Code Reviser.