Leed Hvac Design & Leed Commissioning - Jorge - Mbo - Smri

7/28/2019 Leed Hvac Design & Leed Commissioning - Jorge - Mbo - Smri

1/39

LEED HVAC DesignLEED Commissioning

How Does the MechanicalEngineer & Cx ProviderImpact the Success of aSustainable Building?

Presented by MBO Inc.


2/39

Your Speakers for Today

Jorge Torres CotoBuilding Systems Commissioning EngineerMBO, Inc.

[email protected]

Brought to you by

MBO, Inc.


3/39

Side Note


4/39

Outline

What is LEED?

Benefits and cost of LEED HVAC design and Cx

HVAC design for LEED Requirements and Tips WEc2, WEc3.1, WEc3.2

EAp1, EAp2, EAp3

EAc1, EAc3, EAc4, EAc5

EQp1

EQc1, EQc5, EQc6.2, EQc7.1, EQc7.2

Examples and experience on LEED HVAC design and Cx

Who can be the Cx Provider?

Going beyond the LEED requirements and expectations


5/39

What is LEED?

LEED = Leadership in Energy & Environmental Design

Developed by USGBC (U.S. Green BuildingCouncil) in conjunction with

DOE

EPA

GSA (U.S. General Services Administration

DoD


6/39

What is LEED?

The economic goals of the LEED program

include: Reduced or neutralized first cost

Enhanced asset value/increased profits

Optimized life cycle economic performance

Improved productivity (due to a healthier indoorenvironment)

Reduced liability


7/39

Why Does It Matter?

BECAUSE IT IS THE RIGHT THING TO DO!

Some states, cities, and/or the FederalGovernment offer tax incentives for buildings

that meet Green building codes or become

LEED Certified.

GSA, state, and some municipalities requirenew building projects to meet LEED.


8/39

LEED Certifications

LEED-NC (New Construction)

LEED-CI (Commercial Interiors)

LEED-EB (Existing Buildings)

LEED-CS (Core & Shell; Commercial)

LEED-H (Single Family Residential)

LEED-ND (Residential Neighborhood

Developments)

LEED-Schools

Other in the works


9/39

LEED-NC

Four Levels of LEED Certification

LEED Certified 26-32 points LEED Silver 33-38 points

LEED Gold 39-51 points

LEED Platinum 52-69 points


10/39

Water

Efficiency

8%Energy &

Atmosphere

27%

Materials &

Resources

20%

Sustainable

Sites

22%

Indoor

Environmental

Quality

23%

Five LEED credit categories

*NOTE: 60% of the points are WE, EA and IEQ


11/39

LEED-NC

ASS levels of certification

Half Assed LEED equivalent Cheap Assed Minimum (after-thought)

Bad Ass Integrated Design

Kick Ass Everybody bought in


12/39

LEED-NC

Seven Prerequisites SSp1 Construction Activity Pollution Prevention (Civil

Engineer) EAp1 Fundamental Commissioning (Cx Provider)

EAp2 Minimum Energy Performance (ASHRAE 90.1

and/or CEC Title 24) (Mechanical Engineer)

EAp3 Fundamental Refrigerant Management

(Mechanical Engineer) MRp1 Storage and collection of recyclables (Arch/Owner)

EQp1 Minimum IAQ performance (ASHRAE 62.1 and/or

CEC Title 24) (Mechanical Engineer)

EQp2 Environmental Tobacco Smoke Control (Arch/Owner)


13/39

Mechanical Engineering

Solutions

Choosing the right Mechanical Engineer onthe design team can help satisfy up to 60%

of the requirements for LEED certification WE 3 out of 5 points

EA 2 out of 3 prerequisites

12 out of 17 points

EQ 2 out of 2 prerequisites

7 out of 13 points

ID 2 out of 5 points


14/39


Solutions (WE)

WEc2, WEc3.1, WEc3.2

Grey water systems Waterless urinals and W.C.

Water conserving fixtures

Secondary metering on high volume systems (i.e.

kitchens, mechanical equipment, etc.) Synergy with EAc5 (M&V)


15/39

MechanicalEngineeringSolutions (EA)

EAp2, EAc1 ASHRAE 90.1-2004Title 24 Prerequisite is mandatory in California.

Communication is critical between design team to accomplishhigher energy savings and find economic balance (Arch, EE,ME, Owner)

Proper selection of HVAC system for type of building andoccupancy is critical for optimum building operation andreduction of energy usage. (Team decisions are key)

Fundamental understanding of Synergies and Trade-offswith other credits and standards

EAc1 vs. EQc2 (Energy Consumption vs. Ventilation Air)

EAc1 vs. EAc5 (Verification Built into Design)


16/39


Solutions (EA)

EAc5: M & V (IPMVP)

Not usually implemented. Key to verifying performance of building systems

once it is in operation.

Useful in verifying at post-occupancy EAc1,WEc2, WEc3, EQc1, EQc2, EQc6, EQc7

Some ease of implementing with a calibratedenergy model and Building Automation System(BAS).


17/39


18/39


Solutions (ID)

LEED AP

40% water use reduction


19/39

HVAC Standards & Guidelines

ASHRAE 55-2004 Thermal Comfort

ASHRAE 62.1-2004 Ventilation ASHRAE 90.1-2004 Energy


20/39

Cx Requirements for LEED

Basics

IT IS A PREREQUISITE EAp1

Verify and ensure that fundamental building elements and

systems are deigned, installed and calibrated to operate as

intended.

It is imperative that at least 26 points be achieved to reach

the certification level, Cx is an excellent tool during design,

construction and post-occupancy.

Do you like the Opera or NFL?


21/39

ASHRAE Cx Process

The 4 phases of the Cx Process

OCCUPANCYOPERATIONS

CONSTRUCTION

DESIGN

PREDESIGN

Cx Process


22/39

Energy &

Atmosphere

Pre-1 Fundamental Systems Cx

1. Designate a Cx Authority2. Document OPR and develop BOD

3. Incorporate Cx requirements into CD

4. Develop and implement Cx plan

5. Verify the installation and performance of theCommissioned systems

6. Complete a summary of the Cx Report


23/39

1. Designate the Cx Authority

Part of the owners team (ideally)Third party in preferred but can be part of the design team

CxA shall be independent of the projects design and construction

management, though they may be employees of the firms

providing those services.


24/39

2. Document OPR & BOD

OPR Completed by Owner, CxA and Project Team

Owner and user requirements

Environmental and sustainable goals

Energy efficiency goals

IEQ requirements

Equipment and System expectations

Building occupant and O&M personnel requirements

BOD Completed by the design team

Primary design assumptions

Standards

Narrative descriptions


25/39

3. Incorporate Cx into CDs

Project Specifications

Typically the Cx requirements are in the specs. US DOE / PECI Guide

http://peci.org/library/mcpgs.htm


26/39

4. Develop & Implement Cx Plan

Start early

Preferably during DD It is not a rigid document

changes with planning, scheduling, etc.


27/39

5. Verify the installation &

performance of the systems

Installation inspection

System performance testing Evaluation of results compares to OPR/BOD


28/39

6. Complete Cx Report

Executive summary on the process & results

Deficiency list with resolutions Performance test results


29/39

Certification Submittals

LEED Letter template

Completed OPR and BOD Incorporated Cx into specifications

Cx plan

Verified installation and performance of systems

Completed Cx Report


30/39

Cre-3 Enhanced Cx

Cx Authority must be an independent party

The CxA shall perform at least: Design review prior to CDs

Review contractor submittals

Review building operation (post-occupancy)


31/39

4. Design Review

Minimum one Cx design review of:

OPR BOD

Design documents prior to mid-CD phase

Back check review comments in subsequent

submission


32/39

6. Review Contractor Submittals

Only review submittals applicable to systems

being commissioned for compliance with

OPR and BOD.

Do they meet OPR and BOD

O & M requirements

Facilitating performance testing


33/39

8. Develop Systems Manual

In addition to the O&M manual that is provided to the staff bythe contractor.

Focuses on operations rather than maintenance. Specifics of interactions between equipment

Final version of BOD

Single line diagrams

As-built sequences of operation

Operating instruction for integrated systems

Recommended maintenance schedules

Recommended retesting schedules with blank test forms

Recommended recalibration schedules for sensors and actuators


34/39

9. Verify Requirements for Training

Document training expectations and needs

with the owner

Ensure staff and occupants receive training

and orientation

Special attention should target new or

uncommon design features that have apotential of being over-ridden or removed

due to lack of understanding.


35/39

11. Review Building Operations

After handover ( 8 10 months) reviewperformance of building/facility with owner

and O&M staff. Create a deficiencies list (prior to

manufacturer / contractors warrantyexpiration)

Any items listed on the deficiencies list thatwill not be corrected shall be documented inthe Systems Manual


36/39

Certification Submittals

LEED Letter template

CxA conducted design review

CxA reviewed submittals

Systems Manual

O&M staff and occupants have been trained

CxA review of building operation post-occupancy


37/39

Cx Standards & Guidelines

ASHRAE guideline 0.

ASHRAE guideline 1. NIBS guidelines 2 through 14

NEBB Building Systems Commissioning


38/39

Open Forum

Questions?

Comments?Complaints?

Praises?


39/39

THANK YOU

MBO INC.4619 Viewridge Avenue, Suite C

San Diego, CA 92071

858.277.9721

[email protected]
mailto:[email protected]:[email protected]

Leed Hvac Design & Leed Commissioning - Jorge - Mbo - Smri

Documents

Transcript of Leed Hvac Design & Leed Commissioning - Jorge - Mbo - Smri