Chapter SPS 323 - docs.legis.wisconsin.gov

1 73 SPS AND PROFESSIONAL SERVICESP ublished under s. , Wis. Stats., by the Legislative Reference under s. , Stats. Updated on the first day of each month. Entire code is always current. The Register date on each pageis the date the Chapter was last December 2015 No. 720 Chapter SPS 323 HEATING, VENTILATING AND AIR CONDITIONINGS ubchapter I ScopeSPS II DesignSPS III Heating EquipmentSPS of and location of fuel burning draft maintenance IV Delivery SystemsSPS distribution , registers and V Chimneys and VentsSPS built chimneys or connectors, smoke pipes and appliance VI Fuel Supply SystemsSPS VII Equipment Location and OperationSPS : Chapter Ind 23 was renumbered to be Chapter ILHR 23, Register, February,1985, No.

2 350, eff. 3 1 85. Chapter ILHR 23 was renumbered Chapter Comm 23under s. (2m) (b) 1., Stats., and corrections made under s. (2m) (b) 7.,Stats., Register, January, 1999, No. 517. Chapter Comm 23 was renumbered chapterSPS 323 under s. (4) (b) 1., Stats., Register December 2011 No. I ScopeSPS The provisions of this Chapter shallapply to the design, installation and construction of all heating,ventilating and air conditioning systems in dwellings covered bythis : Cr. Register, November, 1979, No. 287, eff. 6 1 II DesignSPS Every dwelling shall be equippedwith a heating system designed in accordance with this equipment requirements may be waived for recreationaldwellings used only during the non heating season.

3 Where acooling system is provided, the cooling requirements of this sec-tion shall be met.(1)HEATING AND COOLING SYSTEM DESIGN. (a) The heatingand cooling systems shall be designed to maintain the indoordesign temperature at outdoor design conditions.(b) When requested, room by room heat loss and heat gaincalculations shall be : See Appendix for outdoor design temperature map.(2)DISTRIBUTION SYSTEMS. Distribution systems shall besized and located to satisfy the heating and cooling loads of eachconditioned space. When requested, a layout of the distributionsystem shall be furnished to show that the system meets therequirements of this code.

4 (3)VENTILATION. (a) General. 1. All exhaust vents shall ter-minate outside the Automatic or gravity dampers that close when the systemis not operating shall be provided for outdoor air intake andexhaust.(b) Balancing. 1. General. Except as provided under , mechanical ventilation systems shall be Exception. Passive intake air ducts providing makeup airfor intermittent exhaust fans shall be sized to provide at least 40%of the total air that would be exhausted with all intermittentexhaust ventilation in the dwelling operating Kitchen range hoods. a. Kitchen range hoods that exhaustair from the kitchen area are considered as exhaust ventilation forbalancing and makeup Kitchen range hoods that are listed and installed to recircu-late air without exhausting it are not required to be Infiltration.

5 A. Infiltration may be considered as makeupair for balancing purposes only where there are no naturallyvented space or water heating appliances in the For the purpose of complying with this subdivision, natu-rally vented space or water heating appliances are those thattake combustion or dilution air from inside the dwelling, includ-ing unsealed fireplaces and draft hood appliances with : Whole house fans that are used in the summer to bring cool night air inthrough open windows and exhaust into the attic are considered to be a supplementalcooling system rather than part of the ventilation : See s.

6 SPS (5) for additional requirements on mechanical ventila-tion.(c) Habitable rooms. Habitable rooms without openable win-dows shall be provided with a balanced mechanical ventilationsystem producing one air change per hour of fresh outside airwhile the room is occupied.(d) Rooms with toilets, tubs or showers. 1. Except as providedunder subd. 2., any room with a toilet, tub or shower shall be pro-vided with exhaust ventilation capable of exhausting 50 cubic feetper minute on an intermittent basis or 20 cubic feet on a continu-ous For dwellings with no electrical service, any room with atoilet, tub or shower shall be provided with an openable : The department will accept designs which meet the Air Conditioning Con-tractors of America manual; the Mechanical Contractors Association manual; and theSheet Metal and Air Conditioning Contractors National Association standards forheating and air conditioning systems for one and 2 family dwellings.

7 (4)CONTROLS. The temperature rise through the equipmentshall not exceed 100 F unless listed. Controls shall be providedto maintain the inside temperature. Where forced, warm air sys-tems are used, controls shall be installed to control air : Cr. Register, November, 1979, No. 287, eff. 6 1 80; am. (1) Register,January, 1989, No. 397, eff. 2 1 89; am. (3), Register, March, 1992, No. 435, 1 92; r. and recr. (3), Register, November, 1995, No. 479, eff. 12 1 95; r. and recr.(1) and (3) (a), Register, January, 1999, No. 517, eff. 2 1 99; r. and recr. (3) (a),renum. (3) (b) and (c) to be (3) (c) and (d), and cr. (3) (b), Register, March, 2001, , eff.

8 4 1 01; CR 08 043: r. (1) (a), renum. (1) (b), (c) and (3) (a) to be (1) (a),(b) and (3) (a) 1., cr. (3) (a) 2., am. (3) (d) Register March 2009 No. 639, eff. 4 1 III Heating EquipmentSPS of equipment. All heating andcentral cooling equipment shall be selected on the basis of air handling capacity, pumping capacity, and thermal capacity to han-dle the calculated design heating or cooling : Cr. Register, November, 1979, No. 287, eff. 6 1 and location of equipment.(1)GENERAL. (a) All heat producing appliances and coolingappliances shall be listed by a testing agency acceptable to SPS ADMINISTRATIVE CODEP ublished under s.

9 , Wis. Stats., by the Legislative Reference under s. , Stats. Updated on the first day of each month. Entire code is always current. The Register date on each pageis the date the Chapter was last December 2015 No. 720(b) Installation and maintenance of gas fueled appliancesshall comply with the appliance listing and the requirements ofNFPA 54, National Fuel Gas Code, except as otherwise requiredunder this Chapter .(c) The clearances from combustible materials in A and B shall apply unless otherwise shown onlisted ASTANDARD INSTALLATION CLEARANCES (INCHES) FOR HEAT PRODUCING APPLIANCESR esidential Type Appliances for Installationin Rooms Which are Large (See Note 2)Appliance1 Above Topof Casing orApplianceFrom Topand Sides ofWarm AirBonnet orPlenumFrom FrontSee Note 3 From BackFrom SidesBoilers and Water HeatersAutomatic OilSteam Boilers 15 psior6 2466 Water Boilers 250 FComb.

10 Gas OilWater Heaters 200 FAutomatic Gas6 1866 All Water Walls or JacketedElectric6 1866 Furnaces CentralAutomatic OilGravity, Upflow, Downflow,or6462466 Horizontal and Duct,Comb. Gas OilWarm Air 250 FAutomatic Gas6461866 Electric6461866 Furnaces FloorAutomatic OilFor Mounting in Combustible Floorsor36 121212 Comb. Gas OilAutomatic Gas36 121212 Electric36 121212 Heat ExchangerSteam 15 psi Water 250 F Max. 11111 Room HeatersCirculating TypeOil36 241212 Vented or UnventedGas36 241212 Radiant or Other TypeOil36 363636 Vented or UnventedGas36 361818 Gas with dbl metal or ceramic back36 361218 RadiatorsSteam or Hot WaterGas36 666 See Note 5 Firing SideOpp.