4 08 10 AIA LA Presentation

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CONSULTING MECHANICAL AND ELECTRICAL ENGINEERS Donald F. Dickerson Associates

6840 Hayvenhurst Ave., Second Floor

Van Nuys, CA 91406

818.385.3600 www.dfda1.com

EMAIL: [email protected]



CONSULTING MECHANICAL AND ELECTRICAL ENGINEERS Donald F. Dickerson Associates

April 8, 2010

Presented to

AIA/LA Building Performance andRegulations Committee

ByApril Trafton



Los Angeles City Code Updates

No Inspections on Fridays. PEX Pipe is approved. California Lead Free Law for all projects that go to Plan

Check after January 1, 2010. Will LADBS allow non-conforming products through

modification? Will contractors be required to substitute suitable

products if they become available before finalinspection?

All equipment, including water heaters, water tanks, etc.must be AB 1953 compliant so all Architects to coordinatewith Engineers on compliant fixtures.



Lead Free Compliance Lead Free Compliance

LEAD FREE COMPLIANCE REQUIRED

EFFECTIVE JANUARY 1, 2010

PER CALIFORNIA HEALTH AND

SAFETY CODE SEC. 116875FOR ALL PROJECTS IN PLAN CHECK AFTER

JANUARY 1, 2010



2010 California Green Building Standards Code

The CALGreen Code goes intoeffect on January 1, 2011.



CHAPTER 4: RESIDENTIAL MANDATORY MEASURES

SECTION 4.506 - INDOOR AIR QUALITY AND EXHAUST

4.506.1 Bathroom exhaust fans. Mechanical exhaust fans which exhaustdirectly from bathrooms shall comply with the following:

1. Fans shall be ENERGY STAR compliant and be ducted toterminate outside the building.

2. Unless functioning as a component of a whole house ventilationsystem, fans must be controlled by a humidistat which shall bereadily accessible.

a. Humidistat controls shall be capable of adjustment between arelative humidity range of 50 to 80 percent.

Note: For the purposes of this section, a bathroom is a room which contains abathtub, shower, or tub/shower combination.



CHAPTER 4: RESIDENTIAL MANDATORY MEASURES (cont.)

SECTION 4.507 - ENVIRONMENTAL COMFORT

4.507.1 Openings. Whole house exhaust fans shall have insulated louvers or coverswhich close when the fan is off. Covers or louvers shall have a minimuminsulation value of R-4.2.

4.507.2 Heating and air conditioning system design. Heating and air conditioningsystems shall be sized, designed, and equipment is selected using thefollowing methods:

1. The heat loss and heat gain is established according to ACCA Manual J,ASHRAE handbooks or other equivalent design software or methods.

2. Duct systems are sized according to ACCA 29-D Manual D, ASHRAEhandbooks or other equivalent design software or methods.

3. Select heating and cooling equipment according to ACCA 36-S Manual Sor other equivalent design software or methods.

Exception: Use of alternate design temperatures necessary to ensure thesystems function are acceptable.



CHAPTER 5: NON RESIDENTIAL MANDATORY MEASURES

“CLEAN AIR VEHICLE”

5.106.8 Light pollution reduction. [BSC, DSA-SS] Comply with lighting power requirements in

the California Energy Code, CCR, Part 6, and design interior and exterior lighting such that

zero direct-beam illumination leaves the building site. Meet or exceed exterior light levelsand uniformity ratios for lighting zones 1-4 as defined in Chapter 10 of the CaliforniaAdministrative Code, CCR, Part 1, using the following strategies:

1. 1. Shield all exterior luminaires or provide cutoff luminaires per Section 132 (b) of the

California Energy Code.

2. 2. Contain interior lighting within each source.

3. 3. Allow no more than .01 horizontal lumen footcandles to escape 15 feet beyond thesite boundary.

4. 4. Automatically control exterior lighting dusk to dawn to turn off or lower light levels

during inactive periods.Exceptions:

1. Part 2, Chapter 12, Section 1205.6 for campus lighting requirements for parking facilities and walkways.

2. Emergency lighting and lighting required for nighttime security.

5.106.10 Grading and Paving. [BSC, DSA-SS] The site shall be planned and developed to keepsurface water from entering buildings. Construction plans shall indicate how site grading or

a drainage system will manage all surface water flows.



CHAPTER 5: NON RESIDENTIAL MANDATORY MEASURES (cont.)

SECTION 5.201 – GENERAL

5.201.1 Scope. For the purposes of mandatory energy efficiencystandards in this code, the California Energy Commission will

continue to adopt mandatory building standards.

Note: It is the intent of this code to encourage buildings to achieveexemplary performance in the area of energy efficiency. For the

purposes of energy efficiency standards, the California EnergyCommission believes specifically, a green building shouldachieve at least a 15% reduction in energy usage whencompared to the State’s mandatory energy efficiency

standards.



CHAPTER 5: NONRESIDENTIAL MANDATORY MEASURES (cont.) DIVISION 5.3 WATER EFFICIENCY AND CONSERVATION

SECTION 5.302 – DEFINITIONSGRAYWATER. [BSC, DSA-SS] Untreated household waste which has not come into contact with toilet

waste. Graywater includes used water from bathtubs, showers, bathroom wash basins, and waterfrom clothes washing machines and laundry tubs. It shall not include waste water from kitchensinks, dishwashers, or laundry water from soiled diapers.

MODEL WATER EFFICIENT LANDSCAPE ORDINANCE. [BSC, DSA-SS] The California ordinance regulatinglandscape design, installation and maintenance practices that will ensure commercial, multifamily

and other developer installed landscapes greater than 2500 square feet meet an irrigation waterbudget developed based on landscaped area, and climatological parameters.

POTABLE WATER. [BSC, DSA-SS] Water that is drinkable and meets the U. S. Environmental ProtectionAgency (EPA) Drinking Water Standards. See definition in the California Plumbing Code, Part 5.

RECYCLED WATER. [BSC, DSA-SS] Water which, as a result of treatment of waste, is suitable for a directbeneficial use or a controlled use that would not otherwise occur (Water Code Section 13050 (n)).Simply put, recycled water is water treated to remove waste matter attaining a quality that is

suitable to use the water again.SUBMETER. [BSC, DSA-SS] A meter installed subordinate to a site meter. Usually used to measure water

intended for one purpose, such as landscape irrigation. For the purposes of this section, aDedicated Meter may be considered a submeter.

WATER BUDGET. [BSC, DSA-SS] Estimated total landscape irrigation water use shall not exceed themaximum applied water allowance calculated in accordance with the Department of WaterResources Model Efficient Landscape Ordinance (MLO).



CHAPTER 5: NONRESIDENTIAL MANDATORY MEASURES (cont.)

DIVISION 5.3 WATER EFFICIENCY AND CONSERVATION

SECTION 5.303 - INDOOR WATER USE5.303.1 Meters. [BSC] Separate meters or metering device shall be installed

for the uses described in Sections 503.1.1 and 503.1.2.

5.303.1.1 Buildings in excess of 50,000 square feet [BSC]. Separate

submeters shall be installed as follows:

1. For each individual leased, rented, or other tenant space within thebuilding projected to consume more than 100 gal/day.

2. For spaces used for laundry or cleaners, restaurant or food

service, medical or dental office, laboratory, or beauty salon or

barber shop projected to consume more than 100 gal/day.5.303.1.2 Excess consumption [BSC]. Any building within a project or

space within a building that is projected to consume more than 1,000

gal/day.





SECTION 5.303 - INDOOR WATER USE5.303.2 20% Savings. [BSC, DSA-SS] A schedule of plumbing fixtures and fixture fittings

that will reduce the overall use of potable water within the building by 20% shall beprovided. The reduction shall be based on the maximum allowable water use perplumbing fixture and fittings as required by the California Building Standards Code.The 20% reduction in potable water use shall be demonstrated by one of the

following methods.1. Each plumbing fixture and fitting shall meet the 20% reduced flow rate specified

in Table 5.303.2.3, or

2. A calculation demonstrating a 20% reduction in the building “water use baseline”as established in Table 5.303.2.2 shall be provided.

5.303.2.1 Multiple showerheads serving one shower. [BSC] When single shower fixturesare served by more than one showerhead, the combined flow rate of all theshowerheads shall not exceed the maximum flow rates specified in the 20%reduction column contained in Table 5.303.2.2 or the shower shall be designed toonly allow one showerhead to be in operation at a time.

Exception: The maximum flow rate for shower heads when using the calculation method

specified in Section 5.303.2.1, Item 2 is 2.5 gpm @ 80 psi.



CHAPTER 5: NONRESIDENTIAL MANDATORY MEASURES

DIVISION 5.4 MATERIAL CONSERVATION AND RESOURCEEFFICIENCY



CHAPTER 5: NONRESIDENTIAL MANDATORY MEASURES DIVISION 5. ENVIRONMENTAL QUALITY



Analysis of Major Code Changes Analysis of Major Code Changes

Los Angeles Plumbing Code (LAPC) 2009

Major Code Changes

For State Work such as DSA and Hospitals,the Code with California Amendments goes

into effect on January 1, 2011. On the local level for Los Angeles, the Code

goes into effect on July 1, 2011.



Chapter 2: Definitions New Definitions have been added to the code:

Bathroom Group – A group of fixtures consisting of a watercloset, one or two lavatories, and either a bathtub, a combinationbath/shower, or a shower and may include a urinal or bidet andan emergency floor drain.

Bathroom, Half – A room equipped with only a water closet andlavatory.

Private or Private Use – Applies to plumbing fixtures inresidences and apartments, to private bathrooms in hotels andhospitals, and to restrooms in commercial establishments where

the fixtures are intended for the use of a family or an individual. Public or Public Use – Applies to plumbing fixtures that are not

defined as private or private use.



Chapter 3: General Regulations

301.4.5 Design Approval. Any approval of an alternativeengineered design shall be at the discretion of the AuthorityHaving Jurisdiction. The exercise of this discretionary approvalby the Authority Having Jurisdiction shall have no effect beyondthe jurisdictional boundaries of said Authority Having Jurisdiction.

Any alternative engineered design so approved shall not beconsidered as conforming to the requirements and/or intent of thiscode for any purpose other than that granted by the AuthorityHaving Jurisdiction.

301.4.6 Design Review. The Authority Having Jurisdiction shall

have the authority to require testing of the alternative engineereddesign in accordance to Section 301.2.1, including the authority torequire an independent review of the design documents by aregistered professional engineer selected by the Authority HavingJurisdiction and at the expense of the applicant.



Chapter 4: Plumbing Fixtures and Fixture Fittings (cont.)

402.3.1 Non water Urinals. Non-water urinals shall be listed andcomply with the applicable standards referenced in Table 14-1.Non-water urinals shall have a barrier liquid sealant to maintain atrap seal. Non-water urinals shall permit the uninhibited flow of

waste through the urinal to the sanitary drainage system. Non-water urinals shall be cleaned and maintained in accordance withthe manufacturer’s instructions after installation. Where non-waterurinals are installed they shall have a water distribution line rough-in to the urinal location to allow for the installation of an approved

backflow prevention device in the event of a retrofit.




407.5 Setting. Fixtures shall be set level and in proper alignmentwith reference to adjacent walls. No water closet or bidet shall beset closer than fifteen (15) inches (381mm) from its center to anyside wall or obstruction nor closer than thirty (30) inches (762 mm)

center to center to any similar fixture. The clear space in front ofany water closet or bidet shall be not less than twenty-four (24)inches (610 mm). No urinal shall be set closer than twelve (12)inches (305 mm) from its center to any side wall or partition norcloser than twenty-four (24) inches (610 mm) center to center.

Exception: The installation of paper dispensers or accessibilitygrab bars shall not be considered obstructions.




408.2 Water Closet Seats.

408.2.2 Water closet seats, for public use, shall be of theelongated type and either of the open front type or have anautomatic seat cover dispenser.

416.3 Limitation of Water Temperature in Bidets. Themaximum hot water temperature discharging from a bidet shall belimited to 110°F (43°C) by a device that conforms to ASSE 1070or CSA B125.3. The water heater thermostat shall not be

considered a control for meeting this provision.



Chapter 5: Water Heaters

510.6 Gas Vents

510.6.1.2 Screws, rivets and other fasteners shall not penetratethe inner wall of double wall gas vents.

510.7.4 Installation with Appliances Permitted by 510.4.1

510.7.4.1 Prohibited Use. Single-wall metal pipe shall not beused as a vent in dwellings and residential occupancies. [NFPA54-09:12.8.4.1]



Chapter 5: Water Heaters (cont.)

510.8 Through-the-Wall Vent Termination. 510.8.5 Where vents, including those for direct-vent appliances or

combustion air intake pipes, penetrate outside walls of buildings, theannular spaces around such penetrations shall be permanently sealedusing approved materials to prevent entry of combustion products into

the building. [NFPA 54-09:12.9.5]510.10 Vent connectors for Category I Gas Utilization Appliances.

510.10.4 Two or More Appliances Connected to a Single Vent.

510.10.4.1 Where two (2) or more openings are provided into one (1)chimney flue or vent, the openings shall either be at different levels, or

the connectors shall be attached to the vertical portion of the chimney orvent at an angle of 45 degrees or less relative to the vertical [NFPA 54-09:12.11.4.1]




510.10 Vent connectors for Category I Gas UtilizationAppliances.

510.10.4 Two or More Appliances Connected to a SingleVent.

510.10.4.1 Where two (2) or more openings are provided into one(1) chimney flue or vent, the openings shall either be at differentlevels, or the connectors shall be attached to the vertical portionof the chimney or vent at an angle of 45 degrees or less relative to

the vertical [NFPA 54-09:12.11.4.1]




511.1.2 Elbows

Where multiple offsets occur in a vent, the total lateral length of alloffsets combined shall not exceed that specified in Tables 5-9through 5-12. [NFPA 54-09:13.1.3]

511.2.5 Vent Offset. Where multiple offsets occur in a common vent, the total

horizontal length of offsets combined shall not exceed 18 inches / inches (18 mm/mm) of common vent diameter. [NFPA 54:13.2.5]



Chapter 6: Water Supply and Distribution

601.0 Hot and Cold Water Required. 601.1 In occupancies where plumbing fixtures are installed for

private use, hot water shall be required for bathing, washing,laundry, cooking purposes, plumbing fixtures are installed for

public use, hot water shall be required for bathing and washingpurposes. This requirement shall not supersede the requirementsfor individual temperature control limitations for public lavatories,bathtubs, whirlpool bathtubs and shower control valves.



Chapter 6: Water Supply and Distribution (cont.)

601.2 Identification of a Potable and Nonpotable WaterSystem.

601.2.2 Color and Information. Each system shall be identifiedwith a colored pipe or band and coded with paints, wraps andmaterials compatible with the piping.

Exception: Except as required in Selections 1610.0 and 1617.0,non potable water systems shall have a yellow background withblack uppercase lettering, with the words, “CAUTION:NONPOTABLE WATER, DO NOT DRINK.” Each nonpotable

system shall be identified to designate the liquid being conveyed,and the direction of normal flow shall be clearly shown. Theminimum size of the letters and length of the color field shallconform to Table 6-1.




The background color and required information shall be indicatedevery twenty (20) feet (6,096 mm) but not less than once perroom, and shall be visible from the floor level.

601.2.2 Fixtures. Where vacuum breakers or backflow

preventers are installed with fixtures listed in Table 14-1,identification of the discharge side shall be permitted to beomitted.

Outlets. Each outlet on the nonpotable water line that is used for

special purposes shall be posted with black uppercase letteringas follows: “CAUTION: NONPOTABLE WATER, DO NOT

DRINK.”




603.4 Specific Requirements 603.4.22 Potable water supply to swimming pools, spas and hot

tubs shall be protected by an air-gap or a reduced pressureprinciple backflow preventer in accordance with the following:

(1) The unit is equipped with a submerged fill line;or

(2) The potable water supply is directly connected to the unitcirculation system.




604.11 PEX. Cross-linked polyethylene (PEX) tubing conforming toASTM F877 shall be marked with the appropriate standarddesignation(s) for the fittings specified for the use with the tubing.Such marking shall not be required for PEX tubing conforming toonly ASTM F876. PEX tubing shall be installed in compliance withthe provisions of this section.

605.0 Valves.

605.1 Valves up to and including two (2) inches (51 mm) in sizeshall be brass or another approved material. Sizes exceeding two(2) inches (51 mm) shall be permitted to have cast-iron or brass

bodies. Each gate or ball valve shall be a full-way typed withwording parts of non-corrosive material. Valves carrying waterused in potable water systems intended to supply drinking watershall meet the requirements of NSF 61 as referenced in Table 14-1.




608.2 Excessive Water Pressure. An approved expansion tank shall be installed in the cold water

distribution piping downstream of each such regulator to preventexcessive pressure from developing due to thermal expansion

and to maintain the pressure setting of the regulator. Theexpansion tank shall be properly sized and installed inaccordance with the manufacturer’s instructions and listing.Systems designed by registered engineers shall be permitted touse approved pressure relief valves in lieu of expansion tanks

provided such relief valves have a maximum pressure reliefsetting of one-hundred (100) pounds per square inch (689 kPa) orless.




Space Requirements for: Reduced Pressure Backflow Preventers

Pressure Reducing Valves Mixing Valves



Chapter 7: Sanitary Drainage

710.1 Cleanouts for drains that pass through abackwater valve shall be clearly identified with apermanent label stating “backwater valvedownstream”.



Chapter 9: Vents

901.2 Trap Seal Protection. The vent system shall be designedto prevent a trap seal from being exposed to a pressuredifferential that exceeds one (1) inch of a water column (249 Pa)on the outlet side of the trap.



Chapter 9: Vents

908.2 Horizontal Wet Venting for Bathroom Groups. 908.2.1 Where Permitted. Water closets, bathtubs, showers and floor

drains within one (1) or two (2) bathroom groups located on the samefloor level and for private use shall be permitted to be vented by a wetvent. The wet vent shall be considered the vent for the fixtures and shall

extend from the connection of the dry vent along the direction of the flowin the drain pipe to the most downstream fixture drain or trap armconnection to the horizontal branch drain. Each wet-vented fixture drainor trap arm shall connect independently to the wet-vented horizontalbranch drain. Each individual fixture drain or trap arm shall connecthorizontally to the wet-vented horizontal branch drain or shall be provided

with a dry vent. The trap to vent distance shall be in accordance withTable 10-1. Only the fixtures within the bathroom groups shall connect tothe wet-vented horizontal branch drain. The water closet fixture drain ortrap arm connection to the wet vent shall be downstream of any fixturedrain or trap arm connections. Any additional fixtures shall discharge

downstream of the wet vent system and be conventionally vented.



Chapter 9: Vents (cont.)

911.0 Engineered Vent System. 911.1 General. The design and sizing of a vent system shall be

permitted to be determined by accepting engineering practice.The system shall be designed by a registered design professional

and approved in accordance with Section 301.4.



Chapter 10: Traps and Interceptors

1004.1 Bladders, check valves or any other type ofdevices with moveable parts shall be prohibited toserve as a trap.



Chapter 10: Traps and Interceptors (cont.)

1014.0 Grease Interceptors.

1014.1 Where it is determined by the Authority Having Jurisdiction thatwaste pretreatment is required, an approved type of grease interceptor(s)complying with the provisions of this section shall be correctly sized andproperly installed in grease waste line(s) leading from sinks and drains,such as floor drains, floor sinks and other fixtures or equipment in servingestablishments such as restaurants, cafés, lunch counters, cafeterias,

bars and clubs, hotels, hospitals, sanitariums, factory or school kitchens,or other establishments where grease is introduced into the drainage orsewage system in quantities that can effect line stoppage or hindersewage treatment or private sewage disposal. Any combination of hydro-mechanical, gravity grease interceptors and engineered systems shall be

allowed in order to meet this code and other applicable requirements ofthe Authority Having Jurisdiction when space or existing physicalconstraints of existing buildings necessitate such installations. A greaseinterceptor shall not be required for individual dwelling units or for anyprivate living quarters. Water closets, urinals, and other plumbing fixturesconveying human waste shall not drain into or through the grease

interceptor.

L A l I d t i l W t



Los Angeles Industrial Waste

Requirements



Table 10-2 Hydro-mechanical Interceptor Sizing Using

Gravity Glow Rates



Chapter 11: Storm Drain Table 11.1



Chapter 12: Fuel Piping

1209.5 Acceptable Piping Materials and Joining Methods. Regulator Vent Piping. Plastic pipe, tubing, and fittings used toconnect shall be PVC conforming to UL 651, Schedule 40 and 80 Rigid PVC Conduit and Fittings . PVC vent piping shall not beinstalled indoors. [NFPA 54-09:5.6.4.1]

1211.5 Maximum Design Operating Pressure. (6): The piping system is an LP-Gas piping system with a

design operating pressure greater than 20 psi and complieswith NFPA 54:5.5.2. Liquefied Petroleum Gas Systemsdesigned to operate below -5°F (-21°C) with butane or a

propane-butane mix shall be designed to either accommodateliquid LP-Gas or to prevent LP-Gas vapor from condensingback into liquid. [NFPA 54-09:5.5.1]



Chapter 12: Fuel Piping (cont.)

1211.11 Manual Gas Shutoff Valves. 1211.11.4 Shutoff Valve For Laboratories. Each Laboratory

space containing two (2) or more gas outlets installed on tables,benches, or in hoods in educational, research, commercial and

industrial occupancies shall have a single shutoff valve throughwhich such gas outlets are supplied. The shutoff valve shall beaccessible and shall be located within the laboratory or locatedadjacent to the laboratory’s egress door and shall be identified.[NFPA 54-09:7.9.2.4]




1211.14 Systems Containing Flammable Gas-Air Mixtures.Systems containing flammable gas-air mixtures shall be inaccordance with NFPA 54.

1211.15 Electrical Bonding and Grounding.

1211.15.1 Pipe and Tubing other than CSST. Each aboveground portion of a gas piping system other than CSST that islikely to ecome energized shall be electrically continuous andbonded to an effective ground-fault current path. Gas piping,other than CSST shall be considered to be bonded when it isconnected to appliances that are connected to the appliancegrounding conductor of the circuit supplying that appliance.[NFPA 54-09:7.13.1]




1211.14.1 CSST gas piping systems shall be bonded to theelectrical service grounding electrode system at the point wherethe gas service enters the building. The bonding jumper shall benot smaller than (6) AWG copper wire. [NFPA 54-09:7.13.2]

1211.14.2 Gas piping shall not be used as a grounding conductoror electrode. This does not preclude the bonding of metallicpiping to a grounding system. [NFPA 54-09:7.13.3]

1211.14.3 Where a lighting protection system is installed, thebonding of the gas piping system shall be in accordance with

NFPA 780, Standard for Installation of Lightning Protection Systems. [NFPA 54-09;7.13.4]



Appendix LAlternate Plumbing Systems



Appendix LAlternate Plumbing Systems (cont.)



Horizontal Wet Venting

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