Ashrae Standard 189.1-2009

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Overview of

Standard 189.1

Standard 189.1--2009 for

2009 for

High

High--Performance,

Performance,

Green Buildings

Tom Lawrence Ph D P E LEED

Tom Lawrence Ph D P E LEED AP

AP

Tom Lawrence, Ph.D. P.E., LEED

Tom Lawrence, Ph.D. P.E., LEED--AP

AP

Introduction and greetings from the

University of Georgia

Green Buildings Overview, Green Buildings Overview,

Standard 189 Standard 189 -- 22

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Copyright Materials

Heating, Refrigerating and Air

No part of this presentation may be reproduced No part of this presentation may be reproduced

without written permission from ASHRAE, nor without written permission from ASHRAE, nor may any part of this presentation be

may any part of this presentation be

reproduced, stored in a retrieval system or reproduced, stored in a retrieval system or transmitted in any form or by any means transmitted in any form or by any means transmitted in any form or by any means transmitted in any form or by any means

(electronic, photocopying, recording or other) (electronic, photocopying, recording or other) without written permission from ASHRAE.

without written permission from ASHRAE. without written permission from ASHRAE. without written permission from ASHRAE.

3 3

ASHRAE Standard 189.1

Overview of proposed ASHRAE Standard Overview of proposed ASHRAE Standard 189.1 for “High

189.1 for “High--Performance, GreenPerformance, Green 189.1 for High

189.1 for High Performance, Green Performance, Green Buildings”

Buildings” -- What is it?What is it? -- What is it?What is it? -- Why have it?Why have it?

Hi hli ht Hi hli ht -- Highlights Highlights

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Sponsors and Project Committee

Consensus processConsensus process

Sponsor and coSponsor and co--sponsors:sponsors:

Sponsor and coSponsor and co sponsors:sponsors:

-- ASHRAE (American Society of Heating, ASHRAE (American Society of Heating, Refrigerating and Air

Refrigerating and Air--Conditioning Engineers)Conditioning Engineers) Refrigerating and Air

Refrigerating and Air Conditioning Engineers)Conditioning Engineers)

-- USGBC (U.S. Green Building Council)USGBC (U.S. Green Building Council)

-- IESNA (Illuminating Engineering Society ofIESNA (Illuminating Engineering Society ofIESNA (Illuminating Engineering Society of IESNA (Illuminating Engineering Society of North America)

North America)

Project committee:Project committee:

35 voting members; 35 voting members; variety of disciplines, variety of disciplines, 5 5 variety of disciplines, variety of disciplines,

industries & organizations industries & organizations

Standard 189.1: Intent

What Standard 189.1 is:What Standard 189.1 is:

d d d d

-- a standarda standard

-- applies to all buildings except lowapplies to all buildings except low--rise residential rise residential buildings (same as ASHRAE Std 90.1)

buildings (same as ASHRAE Std 90.1)

-- intended for adoption into model building codesintended for adoption into model building codespp gg

What Standard 189.1 is not:What Standard 189.1 is not: -- notnot a design guidenotnot a design guidea design guidea design guide

-- notnot a rating systema rating system

Even if not adopted by your local authorities, Even if not adopted by your local authorities,

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Standard 189.1: Relation

Standard 189.1: Relation to

to

Other

Other ASHRAE Standards

ASHRAE Standards

Other

Other ASHRAE Standards

ASHRAE Standards

62.1 (current version) 90.1 (current version) 90.1 (current version) Adapt, with modifications Adapt Adapt, with minor modifications Adapt 55 (current version) Adapt

Section 2 Section 2 -- Purpose

Purpose

“The purpose of this standard is to provide “The purpose of this standard is to provide minimum requirements for the

minimum requirements for the qq sitingsiting, design, gg, design, gg construction, and plans for operation

construction, and plans for operation of high of high performance, green buildings to:

performance, green buildings to:

(a)

(a) balancebalance environmental responsibility, environmental responsibility, resource efficiency, occupant comfort and well resource efficiency, occupant comfort and well being and comm nit sensiti it and

being and comm nit sensiti it and being, and community sensitivity, and being, and community sensitivity, and

(b)

(b) support the goal of development that support the goal of development that

meets the needs of the present without meets the needs of the present without meets the needs of the present without meets the needs of the present without compromising

compromising the ability of future generations the ability of future generations to meet their own needs

to meet their own needs.”.” to meet their own needs to meet their own needs..

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Organization and What it Covers

Si il h ASHRAE d d d LEED Si il h ASHRAE d d d LEED

Similar to other ASHRAE standards and LEED Similar to other ASHRAE standards and LEED

9 9

Standard 189.1 Basic Structure

x.1: x.1: ScopeScope

x 2:x 2: ComplianceCompliance

For Each Section

x.2: x.2: ComplianceCompliance x.3: x.3: Mandatory Mandatory ( i d f ll j t ) ( i d f ll j t )

(required for all projects) (required for all projects)

x.4: x.4: Prescriptive Prescriptive pathpath

(simple option, minimal choices, (simple option, minimal choices, very few calculations)

very few calculations)

x.5: x.5: Performance Performance pathpath

(more sophisticated, flexibility, but (more sophisticated, flexibility, but

( p , y,

more effort) more effort)

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Highlights of Standard 189.1

Ch t 5

Ch t 5 SitSit Chapter 5

Chapter 5 -- Sites: Sites:

Discourages unmitigated sprawlDiscourages unmitigated sprawl

Prohibited development activityProhibited development activity

-- Flood plains, wetlands, fish & wildlife habitatFlood plains, wetlands, fish & wildlife habitat

Other areas that are addressed:Other areas that are addressed:

-- Amount of impervious surface area Amount of impervious surface area [max % of [max % of

l b

l b ]]

total site to be impervious

total site to be impervious -- PrescriptivePrescriptive]]

-- Urban heat island Urban heat island [shaded or higher solar [shaded or higher solar reflective index materials]

reflective index materials] reflective index materials] reflective index materials]

-- Light “pollution” limitationsLight “pollution” limitations

[max lumens per site, [max lumens per site,

11 11

[max lumens per site, [max lumens per site, backlight and glare limits] backlight and glare limits]

Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Mandatory Provisions

Site water useSite water use: bio: bio--diverse plantings fordiverse plantings for

Site water useSite water use: bio: bio--diverse plantings for diverse plantings for 60% of improved landscape,

60% of improved landscape, hydrozoninghydrozoning & smart irrigation controllers

& smart irrigation controllers & smart irrigation controllers & smart irrigation controllers

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Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Mandatory Provisions

Building water useBuilding water use::

Building water useBuilding water use: :

((§§6.3.2.1) 6.3.2.1) plumbing fixtures & fittings per plumbing fixtures & fittings per U S EPA

U S EPA WaterSenseWaterSense or ASME Standardsor ASME Standards U.S. EPA

U.S. EPA WaterSenseWaterSense or ASME Standards, or ASME Standards, with specific limit on flow amount or rate with specific limit on flow amount or rate

((§§6 3 2 2)6 3 2 2) appliances per U S EPAappliances per U S EPA

((§§6.3.2.2) 6.3.2.2) appliances per U.S. EPA appliances per U.S. EPA EnergyStar

EnergyStar, with water use factor for , with water use factor for dwelling unit or public access

dwelling unit or public access dwelling unit or public access dwelling unit or public access

13 13

Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Mandatory Provisions (

Mandatory Provisions (contcont.).)

HVAC Systems (HVAC Systems (§§6 3 2 3)6 3 2 3)::

HVAC Systems (HVAC Systems (§§6.3.2.3)6.3.2.3)::

-- Subsystem metering above thresholdsSubsystem metering above thresholds

-- Cooling tower cycles of concentration Cooling tower cycles of concentration limit, efficient drift eliminators

limit, efficient drift eliminators

-- Condensate collection from units >19 kW Condensate collection from units >19 kW (65,000 Btu/h)

(65,000 Btu/h)

( , / )

Georgia: ~12.6 gal/cfm Outdoor air or about 100 liters water/(l/s) Annual condensate collection

or about 100 liters water/(l/s) Iowa: ~6.1 gal/cfm OA

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Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Roofs (Roofs (§§6 3 2 4)6 3 2 4)::

Roofs (Roofs (§§6.3.2.4)6.3.2.4)::

-- NO potable water spray on roofs for thermal NO potable water spray on roofs for thermal conditioning or watering vegetation

conditioning or watering vegetation conditioning or watering vegetation conditioning or watering vegetation

15 15

Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Consumption measurementConsumption measurement::

Consumption measurementConsumption measurement: : Measurement devices with remote Measurement devices with remote

communication to data management system communication to data management system communication to data management system communication to data management system (with storage and retrieval capability)

(with storage and retrieval capability)

Leased spaces totaling 50 000 ft

Leased spaces totaling 50 000 ft²² (5000 m(5000 m²²))

-- Leased spaces totaling 50,000 ftLeased spaces totaling 50,000 ft² ² (5000 m(5000 m²²))

-- Heavy use (> 1000 gal/day) leased areas Heavy use (> 1000 gal/day) leased areas regardless of size (e g laundry)

regardless of size (e g laundry) regardless of size (e.g., laundry) regardless of size (e.g., laundry)

Metering of water source(s) and primary Metering of water source(s) and primary water use systems above threshold use rate water use systems above threshold use rate water use systems above threshold use rate water use systems above threshold use rate

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Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Metering Metering

17 17

Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Prescriptive Option

Site Water Use (Site Water Use (§((§§6.4.1)§6.4.1)))::

-- Limitations on potable water for irrigationLimitations on potable water for irrigation

¾

¾Maximum of 1/3 of total landscaped areaMaximum of 1/3 of total landscaped area ¾

¾Maximum of 1/3 of total landscaped area Maximum of 1/3 of total landscaped area

(except golf courses, no potable water use) (except golf courses, no potable water use)

¾

¾Can exclude dedicated athletic fields forCan exclude dedicated athletic fields for ¾

¾Can exclude dedicated athletic fields for Can exclude dedicated athletic fields for

schools, residential common areas, public schools, residential common areas, public recreation facilities

recreation facilities

¾

¾Allow for plant establishment Allow for plant establishment

period period

¾

¾Use municipal reclaimed water Use municipal reclaimed water

if available within 200 ft if available within 200 ft

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Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Building Water Use (Building Water Use (§gg ((§§6.4.2)§6.4.2)))::

-- Cooling TowersCooling Towers Based on water quality Makeup Water

>200 mg/l hardness

YES

YES NONO

3½ cycles for water 5 cycles for water

Exception:

Exception: MaximumMaximum blowdownblowdown Exception:

Exception: Maximum Maximum blowdownblowdown concentration of 1,500 mg/l total concentration of 1,500 mg/l total dissolved solids

dissolved solids or or 150 mg/l silica150 mg/l silica

19 19

Chapter 6 Chapter 6 –

– Water Use Efficiency

Water Use Efficiency

Performance Option

Site water use reductionSite water use reduction: : Potable water for irrigation Potable water for irrigation

<35% of landscape water demand (based <35% of landscape water demand (based pp (( on

on EtoEto) )

Building useBuilding use::

Building useBuilding use: :

Proposed use < [mandatory + prescriptive] Proposed use < [mandatory + prescriptive]

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Energy

Energy –

– Chapter 7

Chapter 7 Highlights for Energy (Chapter 7)

Highlights for Energy (Chapter 7)

Energy

Energy –– General Highlights: gygy General Highlights: g gg g

Basic goal 30% lower than Standard 90.1Basic goal 30% lower than Standard 90.1--2007

2007 INCLUDING PROCESSINCLUDING PROCESS

2007

2007 INCLUDING PROCESSINCLUDING PROCESS

Appendix G from Standard 90.1 is Appendix G from Standard 90.1 is incorporated as a

incorporated as a Normative AppendixNormative Appendix incorporated as a

incorporated as a Normative AppendixNormative Appendix

Metering for verificationMetering for verification

Peak load reductionPeak load reduction

Other areas increase stringency beyond Other areas increase stringency beyond gg yy yy Standard 90.1

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ASHRAE Energy Goals

ASHRAE goal to have netASHRAE goal to have net--zero energy and zero energy and carbon by 2030

carbon by 2030 carbon by 2030 carbon by 2030

36000 Energy Reduction Proposal

y r) n er g y (k B tu /y Standard 90.1 Standard 90.1 E n

ASHRAE BOD Goal

Standard 189 Standard 189 AEDG AEDG 23 23 2010 2015 2020 2025 2030 Year Standard 189 Standard 189

General Compliance Path(s)

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Highlights for Energy (Chapter 7)

Mandatory Requirements:Mandatory Requirements:yy qq

-- OnOn--site renewable power (site renewable power (§§7.3.2)7.3.2)

Provisions for future installation with Provisions for future installation with minimum rating of 3.7 W/ft

minimum rating of 3.7 W/ft² (² (13 Btu/hr13 Btu/hr--ftft²) ²) [40 W/m

[40 W/m²]²] x roof area in ftx roof area in ft² [m²]² [m²]

E ti f ith l i id t l E ti f ith l i id t l Exception for areas with low incident solar Exception for areas with low incident solar (4.0 kWh/m

(4.0 kWh/m22/day), /day), account for local shadingaccount for local shading

25 25

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Highlights for Energy (Chapter 7)

Energy

Energy –– Mandatory (Mandatory (contcont.): .):

Remote or automatic reading metersRemote or automatic reading meters

Remote or automatic reading meters Remote or automatic reading meters

((§§7.3.3) 7.3.3) criteria based on sizecriteria based on size

E (T bl 7 3 3

E (T bl 7 3 3 1)1)

-- Energy sources (Table 7.3.3Energy sources (Table 7.3.3--1) 1)

-- Key systems (Table 7.3.3Key systems (Table 7.3.3--2)2)

Meters communicate to central recording Meters communicate to central recording system

system yy

Data storage for minimum 36 monthsData storage for minimum 36 months

27 27

Exception: Residential portions of buildings complying with this Standard

Energy Metering Thresholds

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Highlights for Energy (Chapter 7)

Prescriptive Option (General) Prescriptive Option (General)

From DOE Study From DOE Study

From DOE Study From DOE Study ––

Std. 189.1 30.2% lower than Std. 189.1 30.2% lower than Standard 90 1 Standard 90 1 20072007 Standard 90.1 Standard 90.1--20072007 (9% due to

(9% due to renewablesrenewables) )

Average EUI 50

Average EUI 50 kBtukBtu/ft/ft²² Average EUI = 50

Average EUI = 50 kBtukBtu/ft/ft²²

Standard 189.1 builds Standard 189.1 builds fffrom 90.1 from 90.1--2007… 2007… 29 29 · Higher in heating dominated climates · 9% from renewable energy

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Highlights for Energy (Chapter 7)

Prescriptive Option: Renewable EnergyPrescriptive Option: Renewable Energy

-- OnOn--site renewable energy system with site renewable energy system with “6

“6 kBtukBtu/ft/ft²² [20 kWh/ ²[20 kWh/ ² ]”]” “6

“6 kBtukBtu/ft/ft²²‐‐yr [20 kWh/m²yr [20 kWh/m²‐‐yr]”yr]”

Exception (meet both of these): Exception (meet both of these):

-- Low incident solar regions (4.0 kWh/mLow incident solar regions (4.0 kWh/m²/day) ²/day) or account for local buildings, topography or account for local buildings, topography

P h f i f

-- Purchase of green power in terms of Purchase of green power in terms of “7 kWh/ft²

“7 kWh/ft²--yr [75 kWh/m²yr [75 kWh/m²--yr]” annually until yr]” annually until cumulative purchase of 70 kWh/ft²

cumulative purchase of 70 kWh/ft²--yryr

31 31

cumulative purchase of 70 kWh/ft² cumulative purchase of 70 kWh/ft²--yr yr [750 kWh/m²

[750 kWh/m²--yr]yr]

P i i O i (B ildi E l )

Highlights for Energy (Chapter 7)

Prescriptive Option (Building Envelope) Prescriptive Option (Building Envelope)

Comply with Standard 90.1, Section 5 with Comply with Standard 90.1, Section 5 with

difi ti difi ti

modifications … modifications …

Replaces Table 5.5Replaces Table 5.5--1 thru 8 on building envelope 1 thru 8 on building envelope

in 90 1 for example:

in 90 1 for example: ((§§7 4 2)7 4 2)

in 90.1, for example:

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Climate Zones

33 33

Corresponding International

(18)

Highlights for Energy (Chapter 7)

((§§7 4 2)7 4 2)

Example comparisons:Example comparisons:

((§§7.4.2)7.4.2)

Example comparisons:Example comparisons:

Example: Example: Climate zone 3 Climate zone 3 Std 90 1 Std 189 1Std 90 1 Std 189 1 M t i t SHGC M t i t SHGC Climate zone 3 Climate zone 3 Std 90.1 Std 189.1Std 90.1 Std 189.1 Insulation above deck R

Insulation above deck R--20 20 ÎÎ RR--2525

R=3 5 (SI) R=4 4

More stringent SHGCMore stringent SHGC

Example for <40% window area: Example for <40% window area:

R=3.5 (SI) R=4.4 Climate zone 5 Climate zone 5 Std. 90.1: 0.40 Std. 90.1: 0.40 Std 189 1 0 35 ll i t ti Std 189 1 0 35 ll i t ti 35 35 Std. 189.1: 0.35 all orientations Std. 189.1: 0.35 all orientations

Highlights for Energy (Chapter 7)

Vertical fenestrationVertical fenestration

Vertical fenestration Vertical fenestration <40% gross wall area <40% gross wall area

((§§7.4.2.4)7.4.2.4) ((§§ )) Overhang: PF >0.5Overhang: PF >0.5 ((§§7.4.2.5) 7.4.2.5) ((§§ )) Exception for cases with <250 cases with <250 hours per year direct sunlight

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Highlights for Energy (Chapter 7)

SHGC MultipliersSHGC Multipliers SHGC MultipliersSHGC Multipliers (different than Std 90.1) (different than Std 90.1) ((§§7 4 2 6)7 4 2 6) ((§§7.4.2.6)7.4.2.6) 37 37

Highlights for Energy (Chapter 7)

Fenestration area and SHGC complies withFenestration area and SHGC complies withpp

((§§7.4.2.9)7.4.2.9) Exception Exception Buildings Buildings adjacent to adjacent to or shaded by or shaded by other other other other bbuildingsuildings

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Highlights for Energy (Chapter 7)

Continuous air barrier requirementContinuous air barrier requirement

((§§7.4.2 10)7.4.2 10)

Complies with Normative Appendix B toComplies with Normative Appendix B to

Complies with Normative Appendix B to Complies with Normative Appendix B to control air leakage in and out

control air leakage in and out

D t il d t ti d t

Detailed on construction documentsDetailed on construction documents

Not required for semiNot required for semi--heated spaces that heated spaces that comply with Std. 90.1 Section 5.4.3.1 comply with Std. 90.1 Section 5.4.3.1

(defines areas of envelope to be sealed, caulked, (defines areas of envelope to be sealed, caulked,

k t d

k t d thth t it i d)d)

39 39

gasketed

gasketed or weatheror weather--stripped) stripped)

§

§7.4.3 HVAC

7.4.3 HVAC

90.1 (current version)

General Concept:

Based on Standard 90.1, but modify to gain improved

90.1 (current version)

modify to gain improved energy performance over code minimum standards

( )

Adapt, with modifications

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§

§7.4.3 HVAC

7.4.3 HVAC

Brief mention of modifications to Std. 90.1Brief mention of modifications to Std. 90.1 -- §§7 4 3 1§§7.4.3.1 7 4 3 17.4.3.1 Minimum equipment efficiencyMinimum equipment efficiencyMinimum equipment efficiency Minimum equipment efficiency Either use equipment with efficiencies of:

Either use equipment with efficiencies of:

-- EPActEPAct baselinebaseline →→ more onmore on--site renewable andsite renewable and

-- EPActEPAct baseline baseline →→ more onmore on--site renewable and site renewable and peak load reduction, OR

peak load reduction, OR

-- Higher efficiency levelsHigher efficiency levelsHigher efficiency levelsHigher efficiency levels

Greater of the efficiency per Energy Star (if Greater of the efficiency per Energy Star (if applicable) or Tables C 1

applicable) or Tables C 1--15. pppp )) 15.

Includes new definition of chiller efficiency Includes new definition of chiller efficiency formula from ARI Standard test conditions formula from ARI Standard test conditions

41 41

§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.2 7.4.3.2 Lowers occupancy threshold for Lowers occupancy threshold for demand

demand--controlled ventilation (DCV)controlled ventilation (DCV)

90.1 (current version) 90.1 (current version) Standard 90 1 2007: 40 people/100 m² 25 people/ 100 m² Standard 90.1-2007: 40 people/100 m² and area >50 m² 25 people/ 100 m If with CO2sensors, install per §8.3.1.2.3p § Note: Type of DCV used is not specified in used is not specified in Std. 189.1

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§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.3 7.4.3.3 Duct sealing level A everywhereDuct sealing level A everywhere

§§7.4.3.4 7.4.3.4 Expanded economizer Expanded economizer

requirement requirement Standard 90 1 requirement requirement Standard 90.1 - Exempted 3A and 4A - Capacity > 65,000 Btu/h (19 kW) (19 kW)

-- Rooftop units <5 tons: two stage (first stage Rooftop units <5 tons: two stage (first stage economizer then second stage adds mechanical) economizer then second stage adds mechanical)

43 43

-- VAV supply air temp reset by at least 5VAV supply air temp reset by at least 5º F (3º C)º F (3º C)

§

§7.4.3 HVAC

7.4.3 HVAC

§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.4 7.4.3.4 Expanded economizer Expanded economizer req’treq’t -- Exceptions:Exceptions:Exceptions:Exceptions: Based on IEER part-load efficiency, or full load EER / SEERor full load EER / SEER

¾

¾Water cooled units with heat transferred with Water cooled units with heat transferred with

building (water

building (water source heat pumps) and lesssource heat pumps) and less building (water

building (water--source heat pumps) and less source heat pumps) and less than 54,000 Btu/hr (16 kW) capacity

than 54,000 Btu/hr (16 kW) capacity

45 45

§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.5 7.4.3.5 Zone controls for limit on reheatZone controls for limit on reheat -- Volume reheated reVolume reheated re--cooled or remixed not toVolume reheated, reVolume reheated, re cooled or remixed not to cooled or remixed not tocooled or remixed not to

exceed

exceed design OA flow ratedesign OA flow rate or 15% of total or 15% of total peak supply

peak supply p pp y p pp y

§§7.4.3.6 7.4.3.6 Fan power limitsFan power limits

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§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.7 7.4.3.7 System controls System controls

-- 2 stages for DX >65 000 Btu/h (19 kW)2 stages for DX >65 000 Btu/h (19 kW)

-- 2 stages for DX >65,000 Btu/h (19 kW), 2 stages for DX >65,000 Btu/h (19 kW),

-- Air handling or fan coil units with CHW Air handling or fan coil units with CHW il d >5 h (3 7 kW) t h

il d >5 h (3 7 kW) t h

coils and >5 hp (3.7 kW) motor have coils and >5 hp (3.7 kW) motor have reduced fan speed option

reduced fan speed option

1.

1. ½ of full fan speed½ of full fan speed 2.

2. Volume of outdoor air per Std. 62.1Volume of outdoor air per Std. 62.1pp -- Single zone, DX units > 110,000 Btu/hr Single zone, DX units > 110,000 Btu/hr

(32 kW) supply fans 2

(32 kW) supply fans 2--speed or VSDspeed or VSD

47 47

(32 kW) supply fans 2

(32 kW) supply fans 2 speed or VSDspeed or VSD

§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.8 7.4.3.8 Expand energy recovery Expand energy recovery req’treq’t

-- 60% energy recovery effectiveness (enthalpy)60% energy recovery effectiveness (enthalpy) Provisions to bypass to allow air economizing Provisions to bypass to allow air economizing

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§

§7.4.3 HVAC

7.4.3 HVAC

§§7.4.3.9

7.4.3.9 Kitchen hoods add variable

Kitchen hoods add variable

speed

(significant impact on energy)

speed

(significant impact on energy)

§§7.4.3.10 and .11

7.4.3.10 and .11

Minimum duct and

pipe insulation increased (Tables C

pipe insulation increased (Tables C--9,

9,

10 and 11)

10 and 11)))

§§7.4.3.12

7.4.3.12 Unoccupied hotel/motel

Unoccupied hotel/motel

>50 guest rooms

49 49

Highlights for Energy (Chapter 7)

Prescriptive Option (

Prescriptive Option (contcont.).)

§§7 4 57 4 5 PowerPower

§§7.4.57.4.5 PowerPower

-- Peak load reductionPeak load reduction

Reduce peak capacity of the building Reduce peak capacity of the building Reduce peak capacity of the building Reduce peak capacity of the building through demand

through demand--limiting or load limiting or load shifting measures (5%)

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Highlights for Energy (Chapter 7)

Prescriptive Option (Lighting)

Interior lighting power to be 10% lessInterior lighting power to be 10% less

Interior lighting power to be 10% less Interior lighting power to be 10% less than ASHRAE Standard 90.1

than ASHRAE Standard 90.1

((§§7 4 6 1)7 4 6 1) ((§§7.4.6.1)7.4.6.1)

Occupancy sensor controls Occupancy sensor controls

((§§7 4 6 2)7 4 6 2) ((§§7.4.6.2)7.4.6.2)

-- Offices <250 ftOffices <250 ft² (25 m² (25 m²)²)

-- Classrooms, lecture, training,Classrooms, lecture, training, conference or meeting rooms conference or meeting rooms (<1000 (<1000 ftft² or 100 m² or 100 m²²)) 51 51 (<1000 (<1000 ftft² or 100 m² or 100 m²²))

Highlights for Energy (Chapter 7)

((§§7 4 6 3)7 4 6 3) Occupancy sensor control toOccupancy sensor control to

((§§7.4.6.3) 7.4.6.3) Occupancy sensor control to Occupancy sensor control to reduce power to <50% for:

reduce power to <50% for:

Hotel motel hallways Hotel motel hallways

-- Hotel, motel hallwaysHotel, motel hallways

-- Storage stack aislesStorage stack aisles Lib t k

Lib t k

-- Library stacksLibrary stacks

Exception: HID lit areas Exception: HID lit areas

< 0 8 W/ft

< 0 8 W/ft² or 8 W/m²² or 8 W/m² < 0.8 W/ft

< 0.8 W/ft² or 8 W/m²² or 8 W/m²

Egress lighting control, Egress lighting control, 0 1 W/ft

0 1 W/ft22 _{(1 W/}_{(1 W/ ²²))}

< 0.1 W/ft

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Highlights for Energy (Chapter 7)

AutoAuto--controls for daylight zonescontrols for daylight zones

AutoAuto--controls for daylight zones,controls for daylight zones, outdoor lighting

outdoor lighting ((§§7.4.6.5)7.4.6.5)

Continuous dimming or Continuous dimming or

-- Continuous dimming, orContinuous dimming, or

-- Stepped switching with Stepped switching with auto

auto offoff auto auto--offoff

53 53

Highlights for Energy (Chapter 7)

§

§7.5 7.5 Performance Based Option:Performance Based Option:

Demonstrated equivalent performance in Demonstrated equivalent performance in

both

both energy costenergy cost and and COCO₂₂ equivalentequivalent

compared to if using the Prescriptive path compared to if using the Prescriptive path

Proposed

Proposed ≤≤ Mandatory +Mandatory + Proposed

Proposed ≤≤ Mandatory +Mandatory + Prescriptive Path Prescriptive Path

i i di

Using Normative Appendix D Using Normative Appendix D “Performance Option for Energy “Performance Option for Energy Efficiency”

Efficiency” Efficiency Efficiency

(28)

Highlights for Energy (Chapter 7)

Performance Based Option:

Performance Based Option: §

§7.5.47.5.4 Annual Load Factor/Annual Load Factor/ Peak Electric Demand

Peak Electric Demand

Same or less peak electric demand as if Same or less peak electric demand as if following the prescriptive path

following the prescriptive pathgg pp pp pp

Minimum annual electrical load factor Minimum annual electrical load factor of 0 25 of 0 25 of 0.25 of 0.25 55 55

Indoor Environmental Quality

Mandatory Key Items to

ASHRAE members:

-- Outdoor airflowOutdoor airflow

-- Tobacco smoke controlTobacco smoke control

-- Outdoor air monitoringOutdoor air monitoringgg

-- Filtration and air cleaningFiltration and air cleaning

(29)

Indoor Environmental Quality

§

§8.3.1 IAQ8.3.1 IAQ

Minimum ventilation design outdoor airflow Minimum ventilation design outdoor airflow rate per Standard 62.1, using Ventilation rate per Standard 62.1, using Ventilation Rate Procedure

Rate Procedure

Outdoor air delivery monitoringOutdoor air delivery monitoring -- Permanently mounted, Permanently mounted,

direct outdoor airflow measurement direct outdoor airflow measurement ±

±15% of 15% of minimum outdoor airflowminimum outdoor airflow CO

CO ii ii ii d ifd if

-- COCO₂₂ monitoring instead if system monitoring instead if system serves only densely occupied spaces serves only densely occupied spaces

C t t l i l d iti

57 57

-- Constant volume air supply, damper position Constant volume air supply, damper position feedback allowable instead

feedback allowable instead

Indoor Environmental Quality

§§8.3.1.3 Filtration8.3.1.3 Filtration

-- (a) Particulates (a) Particulates -- Minimum Minimum MERV 8MERV 8 upstreamupstream of cooling coils,

of cooling coils, MERV 13 MERV 13 when project located when project located in “non

in “non--attainment” area for PMattainment” area for PM_2.5_2.5

( d f d h d

( d f d h d ))

(Modifies and strengthens Std. 62.1

(Modifies and strengthens Std. 62.1 §§6.2.1.1)6.2.1.1)

-- (b) Ozone cleaners for outdoor air in building (b) Ozone cleaners for outdoor air in building projects located in non

projects located in non attainment areas forattainment areas for projects located in non

projects located in non--attainment areas for attainment areas for ozone.

ozone. (Ozone removal efficiency = 40%, per Std. (Ozone removal efficiency = 40%, per Std. 62.1

62.1 §§6.2.1.2)6.2.1.2) 62.1

62.1 §§6.2.1.2)6.2.1.2)

-- (c) Filter frames, air cleaner racks, access (c) Filter frames, air cleaner racks, access doors sealed to eliminate bypass pathways doors sealed to eliminate bypass pathwaysypyp pp yy

(30)

Indoor Environmental Quality

§§8.3.1.48.3.1.4

E i t l T b S k

Environmental Tobacco Smoke Environmental Tobacco Smoke Control

Control

-- No smoking inside, with signageNo smoking inside, with signage

-- No smoking within 25 feet (7.5 m) of No smoking within 25 feet (7.5 m) of d i i k

d i i k

entrance, outdoor air intakes or entrance, outdoor air intakes or operable windows

operable windows

59 59

Indoor Environmental Quality

Oth M d t Oth M d t

Other Mandatory: Other Mandatory:

Thermal ComfortThermal Comfort -- Comply with Comply with Std. 55Std. 55

Sections 6.1 and 6.2 Sections 6.1 and 6.2 (D i d (D i d (Design and (Design and Documentation) Documentation) M t t t M t t t

Mat systems at Mat systems at building entrances building entrances

Envelop acoustical Envelop acoustical design (

design (soundsound

transmission rating transmission rating

(31)

Indoor Environmental Quality

Prescriptive Option (

Prescriptive Option (§§8.4)8.4)::

Side daylightingSide daylighting

Office space shading (glare)Office space shading (glare)

Low emitting materialsLow emitting materials

61 61

Indoor Environmental Quality

Performance Option (

Performance Option (§§8.5)8.5): :

DaylightingDaylighting simulationsimulation

-- Office space and classroomsOffice space and classrooms

-- Minimum Minimum illuminanceilluminance target: target: 300

300 luxlux (30 (30 fcfc) on work surfaces in 75% of ) on work surfaces in 75% of daylight zone at noon equinox

daylight zone at noon equinox daylight zone, at noon equinox daylight zone, at noon equinox

Direct sun limitation on office Direct sun limitation on office worksurfaceworksurface

Di t li ht

Di t li ht kk ff <20% f<20% f

Direct sunlight on Direct sunlight on worksurfaceworksurface <20% of <20% of

occupied hours on equinox day occupied hours on equinox day

((worksurfaceworksurface = 2.4 feet [0.75 m] above floor)= 2.4 feet [0.75 m] above floor) ((worksurfaceworksurface 2.4 feet [0.75 m] above floor) 2.4 feet [0.75 m] above floor)

(32)

Indoor Environmental Quality

Performance Option (

Performance Option (§§8.5)8.5): :

Modeling for individual VOC concentrations Modeling for individual VOC concentrations for each material used, sum total to show for each material used, sum total to show compliance with California

compliance with California CA/DHS/EHLB/R

CA/DHS/EHLB/R--7174 (CA Section 1350)7174 (CA Section 1350)

63 63

Building’s Impact on Atmosphere,

Materials and Resources (

Materials and Resources (§

§ 9)

9)

Materials and Resources (

Materials and Resources (§

§ 9)

9)

Mandatory Items Key to ASHRAE:

Construction waste managementConstruction waste management -- Divert 50% of nonDivert 50% of non--hazardous waste, hazardous waste,

demolition debris (not counting soil, land demolition debris (not counting soil, land clearing)

clearing)

-- OffOff--site storage and sortingsite storage and sorting is allowed

is allowed

Li it t t l t Li it t t l t

-- Limit on total waste Limit on total waste generated per floor area generated per floor area

(33)

Building’s Impact on Atmosphere,

Materials and Resources (

Materials and Resources (§

§ 9)

9)

Materials and Resources (

Materials and Resources (§

§ 9)

9)

Mandatory Items Key to ASHRAE:

No CFCs; fire suppression systems No CFCs; fire suppression systems contain no ozone depleting

contain no ozone depleting pp gg

substances (CFCs, HCFCs ,

substances (CFCs, HCFCs , HalonsHalons))

Storage collection ofStorage collection of

Storage, collection of Storage, collection of recyclable materials, recyclable materials, discarded fluorescent discarded fluorescent discarded fluorescent discarded fluorescent lamps and ballasts lamps and ballasts

65 65

Construction and Operation Plans

OVERVIEW

All Mandatory Provisions: All Mandatory Provisions:

§§10 3 1 Construction10 3 1 Construction

§§10.3.1 Construction10.3.1 Construction

(34)

Construction and Operation Plans

OVERVIEW

§ §10.3.1 Construction10.3.1 Construction

OVERVIEW

Building acceptance testingBuilding acceptance testing

CommissioningCommissioninggg

Erosion and sediment controlErosion and sediment control

Indoor air qualityIndoor air quality

Moisture controlMoisture control

Construction vehiclesConstruction vehicles

67 67

Requirements Concerning

Construction

§§10.3.1.1 Building Acceptance Testing10.3.1.1 Building Acceptance Testing

Activities prior to permit, and prior to Activities prior to permit, and prior to occupancy

occupancypp yy

Designate representative to overseeDesignate representative to oversee

Construction documents indicate who doesConstruction documents indicate who does

Construction documents indicate who does Construction documents indicate who does what

what

M h i l t li hti

Mechanical systems, lighting, Mechanical systems, lighting, renewable energy, energy & renewable energy, energy &

t d i

water measure devices water measure devices

(35)

Construction Requirements (

cont

.)

§

§10.3.1.2 Building Project 10.3.1.2 Building Project Commissioning

Commissioninggg

Full commissioning for Full commissioning for

>500 m² (5,000 ft²) >500 m² (5,000 ft²) >500 m (5,000 ft ) >500 m (5,000 ft )

-- HVAC, building envelope, lighting, irrigation, HVAC, building envelope, lighting, irrigation, plumbing, domestic water, renewable energy plumbing, domestic water, renewable energy plumbing, domestic water, renewable energy plumbing, domestic water, renewable energy

Designate Designate CxACxA

Develop OPR and Basis of Design Develop OPR and Basis of Design

Doing full Cx process also

Develop OPR and Basis of DesignDevelop OPR and Basis of Design

Design reviews at 50% and ‘final’ Design reviews at 50% and ‘final’

p satisfies the Building Acceptance 69 69 construction documents

construction documents Test

requirements

Construction Requirements (

cont

.)

§

§10.3.1.4 IAQ Construction Mgmt10.3.1.4 IAQ Construction Mgmt

Develop and implement an IAQDevelop and implement an IAQ

Develop and implement an IAQ Develop and implement an IAQ

Construction Management Plan, to include: Construction Management Plan, to include:

-- Air conveyance materialsAir conveyance materials

-- Permanent HVAC not used during construction, Permanent HVAC not used during construction, except for startup testing

except for startup testing except for startup testing except for startup testing

(36)

Construction Requirements (

cont

.)

IAQ Construction Management

PostPost--construction preconstruction pre--occupancyoccupancy

PostPost construction, preconstruction, pre occupancy occupancy 1.

1. FlushFlush--out: Temp >60out: Temp >60º F (15 C), RH ≤60%º F (15 C), RH ≤60%

71 71

¾

¾ Filtration if Air Quality Forecast >100Filtration if Air Quality Forecast >100 ¾

¾ Occupancy at ‘½ flush’ possibleOccupancy at ‘½ flush’ possible

Construction Requirements (

cont

.)

IAQ Construction Management

PostPost--construction preconstruction pre--occupancyoccupancy

PostPost construction, preconstruction, pre occupancy occupancy 1.

1. FlushFlush--out: Temp >60out: Temp >60º F (15º F (15°° C)C), RH ≤60%, RH ≤60%

2.

2. Baseline IAQ Monitoring for 34 contaminants Baseline IAQ Monitoring for 34 contaminants (next slide sample list)

(next slide sample list) (next slide sample list) (next slide sample list)

1 sample point per 25,000 ft

1 sample point per 25,000 ft² (2,500 m²) or ² (2,500 m²) or each contiguous floor area

each contiguous floor area each contiguous floor area each contiguous floor area

(37)

§

§10.3.2 Plans for Operation

10.3.2 Plans for Operation

1.

1. High Performance Building OperationHigh Performance Building Operation -- Site SustainabilitySite Sustainability

-- Water Use EfficiencyWater Use Efficiency

-- Energy EfficiencyEnergy Efficiency

-- Indoor Environmental QualityIndoor Environmental QualityQQ yy

2.

2. MaintenanceMaintenance 33 Service LifeService Life 3.

3. Service LifeService Life 4.

4. Transportation ManagementTransportation Management

73 73

Compare Standard 189.1 to LEED

Std. 189.1:Std. 189.1:

-- Improvement in all Improvement in all

V l

V l topical areastopical areas

-- Pushes the envelopePushes the envelope

Voluntary vs. Voluntary vs. mandatory mandatory

(38)

More Information

Information on ASHRAE standards: Information on ASHRAE standards:

www.ashrae.org

www.ashrae.org then followthen follow

www.ashrae.org

www.ashrae.org then follow then follow “Standards”, includes listserv for “Standards”, includes listserv for Standard 189.1

Standard 189.1 Standard 189.1 Standard 189.1

Information on USGBC programs:Information on USGBC programs:

b b

www.usgbc.org www.usgbc.org

Information on IESNA programs:Information on IESNA programs:p gp g

www.iesna.org www.iesna.org

Thank you!

Comments, questions, concerns, advice …Comments, questions, concerns, advice …

Dr. Tom Lawrence, P.E., LEED Dr. Tom Lawrence, P.E., LEED--APAP

[email protected] [email protected]