Air Conditioning - Boilers - Chillers - Heating and Refrigeration.

Our team of experts (Doc Mitchell & Larry Dunn P.E) at A - B - C - H and R hold more licenses, certifications and degrees in fields directly related to all phases of Air Conditioning, Asbestos, HVAC, Boilers, Refrigeration, Pressure Piping and Mechanical Engineering than any other team of HVAC and Refrigeration experts in the United States, Canada & South America.

In addition to their outstanding combined credentials they have over 70 years experience in all phases of Asbestos, Air Conditioning, Boiler, Chillers, Heating and Refrigeration systems. This includes trouble shooting, installation, service, repair, rebuilding, factory warranty service and design from the smallest of laboratory equipment to the largest systems in the world.

A - B - C - H and R has a fully equipped laboratory for testing and dissection of any type of equipment, as well as a large high security storage warehouse for the safe and secure storage of evidence.

A - B - C - H and R also has a fully stocked tool trailer to allow us to bring everything that is needed to perform on-site testing and dissection.

Doc Mitchell is a Construction Expert and Consultant, experienced in all types, fields and phases of construction with the exception of nuclear reactors. Please see our Web Site for more information.

Doc performed his first work as a construction code expert in 1972. He has never been turn down as an expert by any court and Judges have called Doc Mitchell the best expert they have ever seen in their court.

Doc can explain the most difficult construction, mechanical, or electrical items and processes to anyone in such a manner that they can completely understand it.

As of this time Doc is the only construction expert in the United States holding all the following Credentials and Licenses:

Licensed Master Electrical Contractor (Unlimited)

Licensed Master HVAC Contractor (Unlimited), including cooling towers, fluid coolers, chillers of any type, refrigeration system of any type

Licensed Master Boiler, Pressure Vessel, Piping, Contractor (Unlimited)

Professionally trained and/or Certified under programs approved by HUD, U.S. Department of Energy, EPA, etc: High performance energy efficient construction, Sampling/Testing for Asbestos, Mold, Lead, Vapor Diffusion, infiltration and water movement in construction

Certified Asbestos & Hazardous Material abatement, removal, remediation contractor. (Retired)

Degree in Electronic Technology

General Contractor 20 years (Retired)

Member of Code Administration Association of Kentucky

Doc is a Recognized Code Expert and has designed and taught numerous approved continuing educational classes for city, county and state Code Enforcement and Building Inspectors over the years.

Doc also designs the curriculum and teaches certification level classes in mold education which have/are attended by code enforcement, building inspection, health department, juvenile justice, state leasing personnel, and independent building owners and managers.

Doc’s previous cases have ranged from $ 1,500.00 to $ 50,000,000.00

For cases involving general construction or any specific construction trade please call.

William R. Acorn, P.E., FASHRAE, is principal and founder of Acorn Consulting Services, LLC (ACS). For over 30 years, he has been involved in the Engineering Analysis and Design of hundreds of projects ranging from Institutional Laboratories to Cleanroom Facilities for the semiconductor industry.

Mr. Acorn has significant experience as an Expert Analyst of System Design, System Failures, Code Compliance issues and Cause/Effect relationships of problems related to the built environment. Mr. Acorn has received numerous awards for technical excellence and is recognized for his technical achievements, innovation and foresight by peers, associates and clients in the advanced technology industry.

Mr. Acorn is an Adjunct Professor at Arizona State University; the author of the book Code Compliance for Advanced Technology Facilities; and a frequent lecturer to the industry and academia on a variety of technical topics related to building and cleanroom design, construction and project management.

Mr. Acorn is registered as a Professional Mechanical Engineer in the States of Arizona, California, Colorado, Illinois, New Mexico, New York, Nevada, Oregon, Texas and Utah. He is also registered with the National Council of Examiners for Engineering and Surveying.

Forensic & Litigation Consulting

Analysis and evaluation of losses related to failed systems or other facility performance issues is provided on behalf of owners or attorneys. These services are provided with regard to deficiencies in HVAC Systems, Cleanrooms, Piping Systems, Refrigeration Systems, Construction Claims, Building and Fire Codes:

Litigation Consulting

Technical Analysis and Investigation

Claims Preparation and Analysis

Expert Testimony

Project Consulting

ACS assists their clients to optimize the outcome of new and retrofit facilities by providing a range of high level services including:

Strategic Planning: Conceptual Design; Feasibility Studies & Evaluations; Value Engineering

Facility Retrofit and Renovation Strategies

Program Management: Project Delivery Strategies; Selection of Design and Construction Teams

Design Consulting and Design Review

Code Compliance Analysis and Negotiation

---

Albert Ferrari, P.E., C.S.P. is a Mechanical Engineer and Safety Professional experienced in both the micro and in the macro focus. Mr. Ferrari is particularly sensitive to reliability, safety, and function. His Forensic Engineering experience includes 25 years in Accident Reconstruction, Causal Analysis, Failure Analysis, Codes, Standards and Regulations, Consulting and Testimony.

Mr. Ferrari provides Expert Witness Consulting and Testimony services to Defense attorneys, Plaintiff attorneys, Claims adjusters and Insurance companies.

Engineering Work Includes:

Automotive Engineering

Pedestrian Facilities

Machine Design

Thermal and Mechanical Energy Analysis

Structural Load and Stress Analysis

Piping and Tanks

System Safety and Human Factors Analysis for Design of Hazardous Equipment

Evaluations Include

Cause of Injury, Loss and Damage

Adequacy of Products, System, Materials

Standard of Care of Design, Use, Repair

Cause and Origin of Fires; Arson

Services Include:

Investigation and Consultation

Diagnostics, Testing and Analysis

Technical Photography and Video

Literature and Standards Studies

Codes and Regulations Analysis

Reports and Testimony

Evaluations

Bison is a multi-disciplined engineering firm specializing in failure analysis, forensic engineering and fire sciences with a team of P.E.'s who have performed thousands of forensic assignments including in excess of 1,000 fuel gas investigations.

Legal professionals turn to Bison to scientifically conduct investigations to determine the cause of destructive events. Forensic Engineers provide expert testimony and consultation. Investigations include explosions, fires, carbon monoxide incidents, electrical fires and failures, structural failures, mechanical failures, accident reconstruction, specialized testing, and courtroom presentations:

Fuel Gas Incidents: Fire and Explosion Causation; Propane Explosions, Natural Gas Explosion, Gas Delivery Systems; Carbon Monoxide Testing and Evaluation, Production and Migration Investigations; Plant & Pipeline, Piping Evaluation; Operational Analysis; Appliance Evaluation; Code Compliance; Soil Gas Migration; Vapor Dispersion

Fire Investigation and Explosion Analysis: Cause and Origin, Scene Documentation; Collection of Evidence; Certified Fire Investigator

Electrical Engineering: Electrically Related Fires, Electrical Service and Wiring Failures, Production Facility Service and Controls for Chemical, Petroleum, and Distribution Facilities, Electrical Contacts, Electrocutions; Lightning Strikes

Mechanical Engineering: Equipment Design and Operation; High-Pressure Oilfield Equipment; Pump Design and Operation; HVAC Systems; High and Low-Pressure Seals; Plastic Part Design and Manufacture, Industrial Equipment

Accident Reconstruction: Accident Sequence Reconstruction; Speed, Time and Distance Calculations; Crush Damage; Braking; Steering and Mechanical Analysis, including Tires; Electrical System / Electronic Failures; Mechanical and Fuel Systems; Airbag and Seatbelt Fatalities/Injuries; Staged Vehicle Impact

Failure Analysis: Industrial Equipment, Vehicle Impacts, Airbags and Seat Belts; Elevator Failures; Helmet and other Protective Equipment Failures; Infant Crib Design Inadequacies; Carbon Monoxide Investigations, Crane Failures, etc.

Metallurgical Engineering: Metal Fatigue of Gas Compressor Components; Electrical Contact Evaluations; Cracking of Structural Plastics; Chemical Analysis; Corrosion & Stress Evaluation and Analysis; SEM Analysis; Electron/Optical Microscopy; X-ray Examination

Bison's clients argue their cases with confidence, secure in the knowledge that their claims are based on unbiased, scientific data.

David Ross Associates, LLC (DRA) is a Construction Management and Disputes Resolution Consulting Company in San Carlos, California. Our expert construction consultants specialize in the avoidance, analysis and resolution of construction claims.

David Ross Associates has provided expert construction consulting services on various projects throughout the United States, Canada, Europe, the Far East, and the Middle East. We represent owners, engineers and architects, as well as contractors and subcontractors, on construction projects ranging in scale from small homeowner cases to multi-million dollar claims on both public and private projects.

David Ross Associates consultants are highly qualified experts who understand the technical, contractual, management, and financial issues involved in today's complex construction projects.

David Ross Associates has extensive experience providing expert construction consulting services in claim analysis, litigation support, alternative dispute resolution and a wide range of other Construction Claim-Related issues including:

• Construction Management
• Construction Defects
• Schedule Analysis
• Estimating and Cost Analysis
• Change Orders
• Delays
• Disruption
• Acceleration Analysis
• Safety Related Cases

David L. Ross has over thirty years of expertise in Residential, Commercial, Institutional, and Public Works Construction Projects. He has the knowledge and experience required to be particularly successful in construction claims management and resolution. Mr. Ross has testified as a designated construction expert on numerous occasions and has consulted for owners, contractors, insurance companies, design firms, construction industry specialists, and law firms in a wide range of construction-related claims.





Troy V. Sutton provides full time Construction Consulting Support services for DRA. Mr. Sutton's responsibilities include reviewing contract related documentation (e.g. contracts, drawings, specifications, PCOs, Cos, RFIs, CPM schedules, Pos, invoices, procurement records, bid sheets, Pay Apps, engineer reports, testing reports, meeting minutes, correspondence, etc.), preparing claims documents for mediation, arbitration or litigation, and draft Dispute Review Board (Arbitrator/Mediator panel) opinions & recommendations on multi-million dollar public works projects.

---

---

Dexter Varnell is a Registered Professional Engineer who serves as an expert witness and arbitrator in Construction Related Disputes. Mr. Varnell prepares probable cause of damage reports for insurance companies and building condition surveys.

Mr. Varnell Performs Engineering Evaluations and Writes Reports on:

• Foundation - Failures, Drainage and Grading, Walls, Slabs, Porches, Patios, Decks, Driveways, Sidewalks
• Structural - Cracks, Integrity, Windows and Doors, Ceilings, Walls, Floors, Insulation and Ventilation, Electrical, Heating and Air-Conditioning System, Plumbing
• Roofing - Defects, Fascia Soffits and Eaves, Gutters and Downspouts
• Other Types of Building Defects - Landscaping, Fences and Exterior Walls, Smoke Alarms, Carports and Garages, Ceiling Fans, Bathrooms, Kitchen and Utility Connections, Attic, Basement, Chimney

His Services Include:

• Performing Drainage
• Waterproofing
• Roof Consultation
• Structural Design for Residential Renovation Projects

Doc Mitchell is a Construction Expert and Consultant, experienced in all types, fields and phases of construction with the exception of nuclear reactors. Please see our Web Site for more information.

Doc performed his first work as a construction code expert in 1972. He has never been turn down as an expert by any court and Judges have called Doc Mitchell the best expert they have ever seen in their court.

Doc can explain the most difficult construction, mechanical, or electrical items and processes to anyone in such a manner that they can completely understand it.

As of this time Doc is the only construction expert in the United States holding all the following Credentials and Licenses:

Licensed Master Electrical Contractor (Unlimited)

Licensed Master HVAC Contractor (Unlimited), including cooling towers, fluid coolers, chillers of any type, refrigeration system of any type

Licensed Master Boiler, Pressure Vessel, Piping, Contractor (Unlimited)

Professionally trained and/or Certified under programs approved by HUD, U.S. Department of Energy, EPA, etc: High performance energy efficient construction, Sampling/Testing for Asbestos, Mold, Lead, Vapor Diffusion, infiltration and water movement in construction

Certified Asbestos & Hazardous Material abatement, removal, remediation contractor. (Retired)

Degree in Electronic Technology

General Contractor 20 years (Retired)

Member of Code Administration Association of Kentucky

Doc is a Recognized Code Expert and has designed and taught numerous approved continuing educational classes for city, county and state Code Enforcement and Building Inspectors over the years.

Doc also designs the curriculum and teaches certification level classes in mold education which have/are attended by code enforcement, building inspection, health department, juvenile justice, state leasing personnel, and independent building owners and managers.

Doc’s previous cases have ranged from $ 1,500.00 to $ 50,000,000.00

For cases involving general construction or any specific construction trade please call.