Provider: Conference for Catholic Facility Management

Transcription

1 Provider: Conference for Catholic Facility Management Provider Number: G460 Course Title: Hiring a Mechanical Engineer or a Mechanical Design-Build Contractor: HVAC, Mechanical and Boiler Issues, and Implementing Energy Efficiency Components to Projects Course Number: PHX1606 Archdiocese of Chicago Speaker Name: Jacob Preciado April 29, 2016

2 Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-aia members are available upon request. for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. This course is registered with AIA CES

3 Copyright Materials This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited. Archdiocese of Chicago and Conference for Catholic Facility Management (CCFM) 2016

4 Course Description When is it best to hire a Mechanical Engineer or a Mechanical Design-Build Contractor for mechanical improvement or repair projects? This presentation will focus on the pros and cons of repair and/or replacement strategies for heating, ventilation, and air conditioning ( HVAC ) / mechanical projects with the implementation of energy efficiency components.

5 Learning Objectives At the end of the program, participants will be able to: 1. Hire a Mechanical Engineer or a Mechanical Design-Build Contractor, using thorough evaluation methods. 2. Recognize and evaluate minor or major systematic repairs vs. replacement in heating, ventilation, and air conditioning ( HVAC ) / mechanical projects, using examples and/or case studies. 3. Identify and incorporate energy efficiency programs by utilizing local and municipal entities, using examples and/or case studies. 4. Implement a strategic plan for an energy efficient program that will result in longterm operational savings in heating, ventilation, and air conditioning ( HVAC ) mechanical projects, using examples and/or case studies.

6 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Mechanical Engineers are recommended for: New construction projects Re-design of the existing system Conversion to a different type of heating or cooling system. Steam to hot water Steam or hot water to forced air Water cooling to air cooling. 2 pipe heating and cooling system to forced air system

7 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study Christ the King, Chicago, IL After (3) years of discussion with Parishioners and different mechanical companies, the Parish decided to hire a Mechanical Engineer to design the new HVAC system. This project will be a conversion from low-pressure steam to Rooftop units with a Variable Air Volume box system controlled by a Building Automation System that will include air conditioning.

8 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study Christ the King, Chicago, IL The energy savings for this project is currently being evaluated by the Local Utility company energy engineers.

9 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study Christ the King, Chicago, IL The project is set to begin summer of 2016.

10 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor An alternative to hiring a Mechanical Engineer is Design Build Contractor. Design Build contractors have in -house engineers and they have the ability to implement the work. Mechanical Engineer PROS CONS Contractors bid on same design/specs Project design Cost Expert in HVAC /Mechanical design Multiple contracts Design/Contractor Can provide project management Reimbursables Design Build Contractor PROs CONS In-House Mechanical Engineers More owner involvement needed Lower project cost Less competition Design implementation Contract Management is more challeging Single point of contact No independent owner rep overseeing project

11 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study St John Fisher Parish, Chicago, IL Pastor and committee interviewed mechanical engineers but chose to use the design build contractor.

12 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study St John Fisher Parish, Chicago, IL Central Plant had (2) low-pressure steam boilers for the Church and Old school and (2) hot water heat exchangers for the new school. The central plant was controlled by pneumatic controls.

13 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study St John Fisher Parish, Chicago, IL Contractor designed and performed the following work; converted the old school from steam to hot water by running all new copper piping, removed the heat exchangers and added new high efficient hot water boilers for both the old and new schools. The church remained steam; the original steam boilers were replaced with (2) appropriately sized steel steam boilers with high turndown burners.

14 Hire a Mechanical Engineer or a Mechanical Design-Build Contractor Case Study St John Fisher Parish, Chicago, IL Pneumatic controls were updated to digital. The system is now running on a schedule. Yearly estimated therms saved One Time utility rebate St. John Fisher Parish Boiler project GRAND TOTAL FIRST YEAR SAVINGS 13,215 therms $8, $19, $28,136.00

15 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Identify the problem- Ask the following questions: What is the problem? Where is the problem? Is it an equipment issue? Is it a temperature issue? (i.e. hot or cold areas) How long has it been occurring? What is the maintenance history of the equipment? Is a contractor currently under contract at the Parish? Consult with a Mechanical Engineer if needed.

16 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Define scope and request proposal with a repair vs replacement cost

17 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Investigate and implement energy efficient opportunities by contacting your local utility provider and the following web links. Local Utility Company website

18 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Case Study: St Catherine Laboure, Glenview, IL The Parish school has a Carrier rooftop unit (RTU) that was installed in 1994 and is in fair overall condition but the heat exchanger cracked and needs replacement. The mechanical contractor provided a repair vs replacement contract. St Catherine Laboure - RTU Repair vs Replacement proposal Repair cost - New heat exchanger and all it components. $4, Replacement cost- New RTU $8, After considering the overall condition of the RTU and given that the unit was beyond its life expectancy of years, the Parish chose the replacement option

19 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Case Study St Hedwig Parish, Chicago, IL Performed Energy upgrades: High-Turndown burners Individual boiler chimney stacks Steam and condensate line insulation St. Hedwig - Low Pressure Steam Boiler Burner upgrade only Upgrade (4) High Turndown 10:1 ratio linkageless burner project cost Estimated annual gas savings 22,217 Therms Return on Investment with rebate incentive (ROI) $74, $14, years

20 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Case Study St Hedwig Parish, Chicago, IL During the energy upgrade project, we found the vacuum pump tank had a leak and was in need of repair or replacement. The vacuum pump was beyond repair and it was replaced at the end of heating season. Upon equipment start-up for the heating season, we found the vacuum pump was not operating properly. Vacuum pump was able to pull and hold a vacuum for the heating system. The Parish felt it was improperly installed and had the local distributor verify equipment was installed per manufacturer specs. After much discussion, the Parish hired a Mechanical Engineer to assess the entire Parish heating system. The ME provided a written report stating that the issue is not with the new equipment it but rather an existing issue with the condensate return lines and steam traps leaking. These areas will be addressed in the off season and monitored during the upcoming season.

21 Recognize and evaluate minor or major systematic repairs vs. replacement in HVAC projects Case Study St Hedwig Parish, Chicago, IL Parish estimated energy savings and rebates to date. St. Hedwig - Energy Efficiency projects to date Steam boiler burner upgrade Attic insulation Partial Steam trap replacement Steam and condensate pipe insulation Estimated annual gas savings with energy efficiency projects 83,936 Therms Total one time rebate incentives received based on projects listed $62,323.00

22 Identify and incorporate energy efficiency programs Contact your local utility provider and inquire about your Free Energy Assessments report. They should provide a list of trade allies that perform the assessment. The Local Utility trade ally will provide an assessment report that will identify all the possible energy efficiency projects and incentives. Begin with the low-hanging fruit upgrades such as; direct install program, LED bulbs, any project that will result in $0 out of pocket for the Parish i.e. steam traps, heat pipe insulation, etc If planning a major mechanical repair or replacement, get the utility company involved in the early.

23 Identify and incorporate energy efficiency programs The Archdiocese of Chicago had 144 (41%) of the Parishes participate in Energy Efficiency assessment and implement projects of all sizes from simple LED bulb upgrades to major mechanical replacement. The majority of the incentives received by the Parishes were related to Natural Gas projects, electrical projects have been a minor percentage. We are beginning to tap into the electrical incentives with HVAC controls and lighting projects.

24 Identify and incorporate energy efficiency programs

25 Implement a strategic plan for an energy efficient program Explore all energy efficiency possibilities. Local Utility Company website Implementing a good strategic plan with a clear goal will result in a successful Mechanical and Energy project with lower operating cost.

26 Implement a strategic plan for an energy efficient program Proper planning will result in a successful mechanical and energy efficient project. Set your projects goals. Holistic approach to project. Not only replace Old or nonfunctional equipment, evaluate how the equipment is being controlled (pneumatic controls, building automation system, etc.), operating on a schedule? What turns it on and off?

27 Implement a strategic plan for an energy efficient program Case Study Mary Queen of Heaven Parish, Cicero, IL Parish chose a Design-Build contractor for project Planning phase took 5 months, from initial walk through with local utility company to preparing scope work to bidding and awarding the project.

28 Implement a strategic plan for an energy efficient program Case Study Mary Queen of Heaven Parish, Cicero, IL Central heating plant system with original Low-pressure steam boilers and other original equipment was replaced with (2) Low-pressure steam boilers with High- Turndown burners and a new chimney liner. Gym Heat exchangers and pumps were replaced by (2) stand-alone High efficient hot water boilers with new pumps. This system can now be programmed and operated independently from Central heating plant.

29 Implement a strategic plan for an energy efficient program Case Study Mary Queen of Heaven Parish, Cicero, IL Upgraded pneumatic controls to digital controls. Local utility rebate amount $35, (based on estimated therms saved). Mary Queen of Heaven Parish, Cicero,IL Heating Season Therm usage Gas Bills One Time project rebate Old System 10/1/2013 4/30/ ,390 $49, New Sytem 10/1/2014 4/30/ ,491 $19, First year operating cost savings with new system 32,899 $29, $35, Grand Total First Year savings $65,068.06

30 This concludes The American Institute of Architects Continuing Education Systems Course. Questions? Archdiocese of Chicago Jacob Preciado (312) CCFM Andy Guljas (317)