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SPS 364.0313 SPS 364.0313 Other requirements. These are department rules in addition to the requirements in IMC chapter 3:
SPS 364.0313(1) (1)Balancing, final test required. Every heating, ventilating and air conditioning system shall be balanced upon installation. The person or agency responsible for balancing of the ventilating system shall document in writing the amount of outdoor air being provided and distributed for the building occupants and any other specialty ventilation. The document shall be retained at the site and shall be made available to the department upon request.
SPS 364.0313(1)(a) (a) Air systems shall be balanced in a manner to minimize losses from damper throttling by first adjusting fan speed then adjusting dampers to meet design flow conditions. Balancing procedures shall be acceptable to the department. Damper throttling alone may be used for air system balancing with fan motors of 1 hp or less, or if throttling results in no greater than 1/3 hp fan horsepower draw above that required if the fan speed were adjusted.
SPS 364.0313(1)(b) (b) Either of the following test methods shall be used:
SPS 364.0313(1)(b)1. 1. Hydronic systems shall be balanced in a manner to minimize valve throttling losses by first trimming the pump impeller or adjusting the pump speed then adjusting the valves to meet design flow conditions.
SPS 364.0313(1)(b)2. 2. Valve throttling alone may be used for hydronic system balancing under any of the following conditions as specified in subd. 2. a. to d.
SPS 364.0313(1)(b)2.a. a. Pumps with pump motors of 10 hp or less.
SPS 364.0313(1)(b)2.b. b. If throttling results in no greater than 3 hp pump horsepower draw for pumps of 60 hp or less, or no greater than 5% of pump horsepower draw for pumps greater than 60 hp, above that required if the impeller were trimmed.
SPS 364.0313(1)(b)2.c. c. To reserve additional pump pressure capability in open circuit piping systems subject to fouling. Valve throttling pressure drop shall not exceed that expected for future fouling.
SPS 364.0313(1)(b)2.d. d. Where it can be shown that throttling will not increase overall building energy costs.
SPS 364.0313 Note Note: National Environmental Balancing Bureau (NEBB) Procedural Standards, the Associated Air Balance Council (AABC) National Standards, the Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA), or equivalent balancing procedures are acceptable to the department.
SPS 364.0313(2) (2)Balancing, proper working condition. HVAC control systems shall be tested to assure that control elements are calibrated, adjusted and in proper working condition.
SPS 364.0313(3) (3)Balancing, operating and maintenance manuals.
SPS 364.0313(3)(a)(a) The designer or installer shall provide the owner with written instructions for the operation and maintenance of the HVAC systems and equipment. An operating and maintenance manual shall be provided to the building owner or operator. The manual shall include basic data relating to the operation and maintenance of heating, ventilating and air conditioning (HVAC) systems and equipment.
SPS 364.0313(3)(b) (b) Required routine maintenance actions shall be clearly identified. Where applicable, HVAC controls information such as diagrams, schematics, control sequence descriptions, and maintenance and calibration information shall be included.
SPS 364.0313(4) (4)Applicability. This is a department rule in addition to the requirements in IMC chapter 1:
SPS 364.0313(4)(a) (a) The designer or installer shall provide the owner with written instructions for the operation and maintenance of the system and equipment. An operating and maintenance manual shall be provided to the building owner or operator. The manual shall include basic data relating to the operation and maintenance of heating, ventilating and air conditioning (HVAC) systems and equipment.
SPS 364.0313(4)(b) (b) Required routine maintenance actions shall be clearly identified. Where applicable, HVAC controls information such as diagrams, schematics, control sequence descriptions, and maintenance and calibration information shall be included.
SPS 364.0313 History History: CR 00-179: cr. Register December 2001 No. 552, eff. 7-1-02; CR 06-120: r. and recr. (3) Register February 2008 No. 626, eff. 3-1-08; CR 10-103: (4) renum. from Comm 64.0102 Register August 2011 No. 668, eff. 9-1-11.
SPS 364.0401 SPS 364.0401 Ventilation.
SPS 364.0401(1)(1)Ventilation required.
SPS 364.0401(1)(a)(a) These are department rules in addition to the requirements in IMC section 401.2:
SPS 364.0401(1)(a)1. 1. Natural ventilation shall be in accordance with s. SPS 364.0402.
SPS 364.0401(1)(a)2. 2. Mechanical ventilation shall be in accordance with IMC section 403 and as modified in ss. SPS 364.0403 (1) to (6).
SPS 364.0401(1)(b) (b) These are department exceptions to the requirements of IMC section 401.2:
SPS 364.0401(1)(b)1. 1. Outdoor air ventilation by natural or mechanical means shall be permitted to be omitted in large volume spaces containing 5,000 or more cubic feet per occupant.
SPS 364.0401(1)(b)2. 2. A toilet room that has only one water closet or urinal and no bathtub or shower may be provided with either natural ventilation via a window or louvered opening with at least 2 square feet of area openable directly to the outside or mechanical exhaust ventilation as specified in Table 364.0403.
SPS 364.0401(1)(b)3. 3. A janitor closet that has only one service sink may be provided with either natural ventilation via a window or louvered opening with at least 2 square feet of area openable directly to the outside or mechanical exhaust ventilation as specified in Table 364.0403.
SPS 364.0401(2) (2)When required. Substitute the following wording for the requirements of IMC section 401.3:
SPS 364.0401(2)(a) (a) Except as provided in par. (b), ventilation shall be provided during the periods that the room or space is occupied.
SPS 364.0401(2)(b) (b) Mechanical exhaust ventilation shall be provided for natatoriums even when the space or building is not occupied.
SPS 364.0401(4) (4)Intake openings.
SPS 364.0401(4)(a)(a) Substitute the following wording for the requirements in IMC introductory section 401.4: Air intake openings for both mechanical and gravity ventilation systems shall comply with all of the following:
SPS 364.0401(4)(b) (b) Substitute the following wording for the requirements in IMC section 401.4. 2.: Intake openings shall be located not less than 10 feet horizontally from any hazardous or noxious contaminant source.
SPS 364.0401(4)(c) (c) This is a department rule in addition to the requirements in IMC section 401.4: The lowest side of outside air intake required openings shall be located at least 12 inches vertically from the adjoining grade level, above adjoining roof surfaces, or above the bottom of an areaway.
SPS 364.0401(4)(d) (d) These are department exceptions in addition to the requirements in IMC section 401.4 and par. (c):
SPS 364.0401(4)(d)1. 1. The setback distances as specified in IMC section 401.4 and par. (c) shall not apply to the combustion air intake of a direct vent appliance.
SPS 364.0401(4)(d)2. 2. Where it can be demonstrated that an engineered system design will prevent the maximum concentration of contaminants brought in through the outside air intake from exceeding the maximum contaminant concentration obtainable by providing the separation distances in accordance with IMC section 401.4 and par. (c), the outdoor air intakes may be located in accordance with such engineered system design.
SPS 364.0401 Note Note: See ch. SPS 382 for plumbing vent setbacks. That rule requires plumbing vents to be 10 feet from air intakes and 10 feet horizontally from or 2 feet above roof scuttles, doors or openable windows.
SPS 364.0401 Note Note: See NFPA standard 45, Fire Protection for Laboratories Using Chemicals, adopted under s. SPS 362.3500, for chemical fume hood exhaust location. Health care and related facilities may have additional requirements.
SPS 364.0401 History History: CR 00-179: cr. Register December 2001 No. 552, eff. 7-1-02; CR 01-135: r. and recr. (4) (a) (intro.), cr. (4) (a) 4. and (b) 5., CR 01-139: r. and recr. (4) (a) 3., am. (4) (b) 2. Register June 2002 No. 558, eff. 7-1-02; CR 06-120: r. and recr. (1), (2) and (4) (a), r. (3), (4) (b) 2. to 4., am. (4) (b) (intro.), 1. and (5) (intro.), renum. (4) (b) 5. to be (4) (b) 2. and am., cr. (6) Register February 2008 No. 626, eff. 3-1-08; CR 10-103: r. and recr. (1), renum. (4) (a) and (b) to be (4) (c) and (d) and am., cr. (4) (a) and (b), renum. (5) and (6) to be Comm 64.0501 (3) and (5) Register August 2011 No. 668, eff. 9-1-11 correction in (1) (a) 1., 2., (b) 2., 3. made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672.
SPS 364.0402 SPS 364.0402 Natural ventilation. This is a department rule in addition to the requirements in IMC section 402: The use of natural ventilation shall be permitted under either of the following:
SPS 364.0402(1) (1) In occupancies specified in Table 364.0402.
SPS 364.0402(2) (2) For any occupancy, provided an engineered design indicates how the ventilation satisfies the needs of the occupancy.
Table 364.0402
Natural Ventilation
Allowed for Specific Occupancies - See PDF for table PDF
SPS 364.0402 History History: CR 00-179: cr. Register December 2001 No. 552, eff. 7-1-02; CR 06-120: am. Register February 2008 No. 626, eff. 3-1-08; CR 10-103: r. and recr. Register August 2011 No. 668, eff. 9-1-11; correction in (1) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672.
SPS 364.0403 SPS 364.0403 Mechanical ventilation.
SPS 364.0403(1) (1)Outdoor air required.
SPS 364.0403(1)(a)(a) Substitute the following wording for the exception in IMC section 403.2: Where it can be demonstrated that an engineered ventilation system design will prevent the maximum concentration of contaminants from exceeding the maximum obtainable by providing the rate of outdoor air ventilation determined in accordance with IMC section 403.3, as modified by subs. (2) to (6), the minimum required rate of outdoor air may be reduced in accordance with such engineered system design. A ventilation system complying with IMC section 403.3 without the modifications of subs. (2) to (6) is recognized as meeting this exception.
SPS 364.0403(1)(b) (b) This is a department rule in addition to the requirements in IMC section 403.2: The outdoor air shall be free from contamination of any kind in proportions detrimental to the health and comfort of the general population exposed to it.
SPS 364.0403(2) (2)Recirculation prohibited. Substitute the following wording for exception 3 in IMC section 403.2.1: Where mechanical exhaust is governed by Table 364.0403 footnote c., recirculation of air from such spaces is prohibited. All air supplied to such spaces shall be exhausted, including any air in excess of that required by Table 364.0403.
SPS 364.0403(3) (3)Recirculation of air. This is a department informational note to be used under IMC section 403.2.1:
SPS 364.0403 Note Note: The following are examples where the department will accept air transferred from: corridor to toilet room; corridor to cloak room or janitor closet; dining room to kitchen; locker room to toilet room; gymnasium to locker room; showroom to garage; and corridor to school vocational shops.
SPS 364.0403(4) (4)Transfer air. Substitute the following wording for the requirements in IMC section 403.2.2: Except where recirculation from such spaces is prohibited by Table 364.0403, air transferred from occupied spaces is not prohibited from serving as makeup air for required exhaust systems in such spaces as kitchens, baths, toilet rooms, elevators and smoking lounges. The amount of transfer air and exhaust air shall be sufficient to provide the flow rates as specified in sub. 5. The required outdoor air rates specified in Table 364.0403 shall be introduced directly into such spaces or into the occupied spaces from which air is transferred or a combination of both.
SPS 364.0403(5) (5)Ventilation rate. Substitute the following wording for the requirements and exception in IMC section 403.3:
SPS 364.0403(5)(a) (a) Ventilation rate determination.
SPS 364.0403(5)(a)1.1. Except as provided in sub. (1) (a) and s. SPS 364.0300, a mechanical ventilation system shall be designed to have the capacity to supply a minimum outdoor airflow rate of 7.5 cfm per person as determined in accordance with Table 364.0403 based on the occupancy of the space and the occupant load or other parameters stated therein. A mechanical ventilation system shall be designed to have the capacity to exhaust air as specified in Table 364.0403 except as provided in par. (c).
SPS 364.0403(5)(a)2.a.a. Except as provided in subd. 2. b. to d., the occupant load utilized for design of the ventilation system shall not be less than the number determined from the estimated maximum occupant load rate indicated in Table 364.0403.
SPS 364.0403(5)(a)2.b. b. The estimated maximum occupant load rate may be determined using other means with justification acceptable to the department to show that a different number of occupants is reasonable.
SPS 364.0403(5)(a)2.c. c. Where there is no value indicated for the net square feet per person in Table 364.0403, the actual number of occupants shall be used to determine the required amount of outside air.
SPS 364.0403(5)(a)2.d. d. Ventilation rates for occupancies not represented in Table 364.0403 shall be determined by an approved engineering analysis, or by using the most similar occupancy in the table.
SPS 364.0403(5)(b) (b) Adjacent spaces with differing ventilation requirements.
SPS 364.0403(5)(b)1.1. Except as provided in subd. 2., spaces with different ventilation requirements shall be provided with a complete solid separation, or the most stringent ventilation requirement shall apply to all unseparated areas.
SPS 364.0403(5)(b)2. 2. The separation as specified in subd. 1. is not required where an engineered ventilation design system will prevent the concentration of contaminants from exceeding that obtainable by providing a physical separation.
SPS 364.0403(5)(c) (c) Exceptions for certain occupancies.
SPS 364.0403(5)(c)1.1. `Toilet rooms.' A toilet room that has only one water closet or urinal and no bathtub or shower may be provided with either natural ventilation via a window or louvered opening with at least 2 square feet of area openable directly to the outside or mechanical exhaust ventilation as specified in Table 364.0403.
SPS 364.0403(5)(c)2. 2. `Janitor closets.' A janitor closet that has only one service sink may be provided with either natural ventilation via a window or louvered opening with at least 2 square feet of area openable directly to the outside or mechanical exhaust ventilation as specified in Table 364.0403.
SPS 364.0403(5)(c)3. 3. `Locker and shower rooms.' An adjoining locker room, shower room and toilet room shall be exhausted at the rate specified in Table 364.0403 based on the largest amount of exhaust required for any of the three rooms. A negative pressure relationship shall be maintained in the shower and toilet rooms with respect to the locker room.
SPS 364.0403(5)(c)5. 5. `Pool ventilation.' In a natatorium, the volume of supply air and exhaust air may be reduced to a minimum of 1 cfm per square foot of pool surface provided automatic humidity controls perform so as not to create accelerated building material deterioration from moisture condensation.
SPS 364.0403(5)(d) (d) Common ventilation system airflow.
SPS 364.0403(5)(d)1.1. Substitute the following wording for the requirements in IMC sections 403.3.1 through 403.3.2.3.4: Where multiple spaces having different ventilation rate requirements are served by a common ventilation system, the minimum amount of outdoor airflow supplied by the ventilation system shall equal the total outdoor airflow required for each space if each space is provided with minimum air changes in accordance with this paragraph.
SPS 364.0403(5)(d)2.a.a. Except as provided in subd. 2. d., an air change rate of 6 air changes per hour shall be provided in each space.
SPS 364.0403(5)(d)2.b. b. The air change air rate under this subsection shall be determined upon either the actual height of the space or 10 feet from the floor level of the space which ever is less.
SPS 364.0403(5)(d)2.c. c. The air movement providing the required minimum air change shall be that amount that is transferred through the air handling equipment where the return air is diluted or replaced with outside air and supplied back to the space.
SPS 364.0403(5)(d)2.d. d. Air change rate of less than 6 air changes per hour is permitted where mechanical cooling is provided to maintain an interior design temperature of 78°F or lower. The air change rate may not be less than the alternative minimum air change rate per hour specified in Table 364.0403. Air changes are not required to be provided for spaces required to be mechanically exhausted.
SPS 364.0403(6) (6)System operation. Substitute the following wording for the requirements in IMC section 403.5: The minimum flow rate of outdoor air that the ventilation system must be capable of supplying during its operation may be based on the rate per person indicated in Table 364.0403 and the actual number of occupants present. - See PDF for table PDF
NA = not applicable; NR = none required; cfm = cubic feet per minute; TF = toilet fixtures (water closets and urinals); A/C = air conditioning
a Based upon net floor area.
b The ventilation rate is based upon cubic feet per minute per square foot of the floor area being ventilated.
c Mechanical exhaust is required and the recirculation of air from these spaces that would otherwise be allowed by IMC section 403.2.1 is prohibited.
d Outdoor air shall be provided at the rate of 1.0 cfm/net sq. ft. floor area. Transfer air is permitted in accordance with IMC section 403.2.2.
e The sum of the outdoor and transfer air from adjacent spaces shall be sufficient to provide an exhaust rate of not less than 1.5 cfm/sf.
f The minimum mechanical ventilation rate is 15 cfm/room of outside air.
g Natural ventilation may be allowed under this section.
h The classification of a `beauty' salon depends on the types of services provided. Only beauty salons routinely provide chemical processing of hair to produce texture or color changes, or manicures or other services with a similar need for air-borne contaminant and odor control.
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