HVAC Controls Review & Optimization
I provide independent, project-specific HVAC controls reviews and optimization assessments for mechanical contractors, controls contractors, commissioning agents, and MEP firms. Every review is based on your actual project documents — mechanical drawings, control submittals, sequences of operation, and BAS configuration — and every finding is specific, prioritized, and actionable. No generic commentary. No checkbox exercises.
Most HVAC systems are handed over with control sequences that look complete on paper. In practice, generic sequences, incomplete logic, misconfigured setpoints, and unresolved alarm trees quietly undermine system performance from day one — driving up energy costs, generating comfort complaints, wearing out equipment prematurely, and turning commissioning into a prolonged troubleshooting exercise. A thorough controls review, performed before or after commissioning, surfaces those problems while there is still time to correct them cleanly and cost-effectively.
My experience includes serving as the Cognizant Engineer for all HVAC systems and chiller plants at a major industrial facility — interpreting, validating, and correcting control sequences for central chiller plants, air handling units, VAV systems, hydronic loops, and building automation platforms. I understand how control logic is written, how it is programmed, and how it actually behaves in the field. That operational perspective is what separates a meaningful controls review from a document markup exercise.
What’s Included in Every HVAC Controls Review
Each engagement covers the full spectrum of controls documentation — from the written sequence to the installed hardware interface. The scope below applies to standard engagements; scope can be tailored for specific project needs.
| Controls Documentation Review | SOO completeness and accuracy check · Controls submittal and shop drawing review · Consistency between mechanical design documents and control documentation · Identification of missing, ambiguous, or conflicting documentation |
| Sequence of Operations Evaluation | Occupied, unoccupied, and standby mode logic · Startup and shutdown sequencing for all major equipment · Override and manual operation provisions · Seasonal changeover and operational mode logic · Equipment enable conditions and interlocks |
| Control Logic Gap Analysis | Undefined operating conditions and edge cases · Lead/lag and equipment staging logic · VFD and variable flow control sequences · Economizer and free cooling logic · Freeze protection and low-temperature safeguard sequences |
| BAS Points List & Integration Review | Points list completeness relative to SOO and equipment schedule · Sensor, actuator, and status point coverage · Trending and monitoring configuration · Operator interface and alarm display requirements |
| Setpoint & Reset Strategy Review | Supply air, chilled water, and hot water temperature setpoints · Reset strategies and scheduled reset logic · Differential pressure setpoints for pumps and fans · Humidity control setpoints · Occupied and unoccupied setback values |
| Alarm & Safety Logic Evaluation | High/low temperature and pressure alarm thresholds · Equipment fault, lockout, and manual reset conditions · Fire/smoke interlock descriptions and logic paths · Critical alarm routing and notification · Redundancy and failsafe condition evaluation |
| Energy & Efficiency Assessment | Control sequences driving unnecessary energy use · Simultaneous heating and cooling conditions · Fan and pump speed control optimization · Dead band, setback, and scheduling review for energy impact |
| Deficiency Report & Recommendations | Prioritized list of all identified deficiencies · Specific, implementable corrective action for each finding · Recommended sequence revisions where applicable · Critical vs. lower-priority issue distinction · Suitable for direct use in RFIs, change orders, or commissioning packages |
Who This Service Is For
| Mechanical Contractors | Need an independent review of controls submittals or sequences before programming begins — or documented technical support when pushing back on a vague or incomplete SOO from the controls contractor. |
| Controls Contractors | Want a third-party review of the sequences they have been handed before committing to programming — or need PE-backed engineering support when the sequence does not match the mechanical design. |
| Design-Build Contractors | Responsible for both design intent and installed controls and need a qualified PE to confirm that the control logic matches what is actually designed, installed, and operable in the field. |
| Commissioning Agents | Need controls documentation reviewed and confirmed before Functional Performance Tests are executed — ensuring test protocols align with the actual intended sequences, not assumptions. |
| MEP Firms & Independent Engineers | Need a controls review completed but do not have a dedicated controls engineer on staff to perform a thorough evaluation of submittals, programming logic, or sequence completeness. |
| Owners & Facility Managers | Suspect that existing HVAC controls are not performing as intended and need a qualified PE to assess the system, document the gaps, and provide a clear, prioritized path to correction. |
Why Contractors Choose This Service
| Field-Validated Experience | I have commissioned chiller plants, central HVAC systems, and complex mechanical infrastructure. I know how control sequences translate from the written document to actual equipment behavior — and where poorly written or incomplete logic causes failures during startup, commissioning, and long-term operation. |
| Independent, Unbiased Assessment | I have no stake in the controls equipment, the BAS platform, or the installation contractor. My job is to evaluate the logic honestly and tell you what is complete, what is missing, and what needs to change — not to protect a vendor relationship or downplay issues to keep a project schedule intact. |
| Written for the People Who Will Act on It | Every review deliverable is written for the controls contractor making the programming changes, the commissioning agent writing the test procedures, and the mechanical contractor closing out the project. Findings are specific, clear, and immediately actionable — not general commentary. |
| Design Intent Meets Real-World Operation | A controls review that only checks grammatical completeness misses the point. I evaluate whether the sequences will actually work as the mechanical system is designed, whether they handle the real operating conditions the equipment will see, and whether a controls contractor can program from them without guesswork. |
| Supports Commissioning Coordination | If you also need a Commissioning Plan or a Sequence of Operations, I can develop all three documents together — ensuring controls review findings are incorporated into SOO revisions and that Functional Performance Tests align with the validated, corrected sequences. |
| PE-Licensed Engineering Authority | As a licensed Professional Engineer in New York, New Jersey, and Maine, I can provide a controls review with PE-stamped engineering authority when required by the owner, Authority Having Jurisdiction, or design team. Most controls contractors and commissioning firms cannot. |
| Fast, Predictable Turnaround | Controls schedules do not have room for slow review cycles. You get a confirmed delivery timeline, direct communication with the PE doing the work, and no project management layer between you and the engineer responsible for the findings. |
Industries Served
- Commercial Office & Mixed-Use Buildings — Multi-zone VAV systems, central plants, and tenant-metered HVAC
- Healthcare & Life Sciences — Pressure-relationship control, cleanroom sequences, critical area humidity and temperature logic
- Industrial & Manufacturing — Process cooling, exhaust and make-up air systems, chiller plant controls
- Higher Education & Institutional — Central plant distribution, building-level controls, and lab exhaust systems
- Government & Federal Facilities — Commissioning-required projects, LEED and energy compliance documentation
- Data Centers & Mission-Critical Facilities — Redundancy logic, cooling failover sequences, tight temperature and humidity control
How It Works
Step 1 — You provide the project documents
- Sequence of Operations (current version)
- Mechanical drawings (floor plans, schematics, equipment schedules)
- Controls submittals and shop drawings
- BAS points list (if available)
- Relevant specification sections
- Any existing commissioning documentation or RFIs related to controls
Step 2 — I conduct the full controls review
Based on your actual mechanical design and control documentation — not a generic checklist. Every sequence is evaluated against the installed equipment, the design intent, and real-world operational requirements. Every gap, conflict, and optimization opportunity is documented.
Step 3 — I deliver the Controls Review Report
A structured, prioritized report documenting all findings with specific corrective actions, ready for direct use in project coordination, commissioning packages, RFI responses, or change order support. Revisions based on your feedback are included in the scope.
Frequently Asked Questions
At what point in a project should a controls review be performed?
Ideally during the submittal review phase — after the controls contractor has submitted sequences but before programming begins. This is the lowest-cost point to identify and correct problems. AET can also conduct a controls review during commissioning when field conditions reveal sequence gaps, or post-occupancy when an owner suspects the system is not performing as intended.
What is the difference between a controls review and commissioning?
Commissioning verifies that installed equipment operates per the design intent through physical testing. A controls review is a document-level engineering evaluation — it examines whether the written sequences, BAS logic, setpoints, and alarm configurations are complete, correct, and consistent with the mechanical design before or during commissioning. Both are necessary; a controls review significantly reduces the risk of commissioning failures.
Can you review controls for a system that is already installed and operating?
Yes. Post-installation and post-occupancy reviews are a common engagement. AET reviews the as-built sequences, BAS configuration, and current setpoints against the original design intent, identifies performance gaps, and provides specific corrective recommendations. This is particularly valuable when an owner is experiencing unexplained energy costs, comfort complaints, or repeated equipment faults.
Do you work with all BAS platforms?
Yes. The controls review focuses on the engineering logic — the sequences, setpoints, alarm thresholds, and control strategies — which are platform-independent. AET does not perform BAS programming, but the review findings are written to be directly actionable for the controls contractor performing the programming, regardless of the platform they use.
Can you provide a PE-stamped controls review report?
Yes. As a licensed Professional Engineer in New York, New Jersey, and Maine, AET can provide PE-stamped controls review reports when required by the owner, Authority Having Jurisdiction, or design team. Contact AET to discuss stamping requirements for your specific project.
How do I request a quote or start a project?
Use the contact form at the bottom of this page or call 518-320-2501. Provide your project documents and I will review the scope, confirm a delivery timeline, and provide a fixed-fee proposal. Most proposals are turned around within one business day.
Add an Independent Controls Review to Your Next Project
If your project has HVAC control sequences that have not been independently evaluated — or if you are heading into commissioning and need confidence that the logic is complete, correct, and programable — AET provides a thorough, PE-authored controls review that gives your team a clear picture of what is right, what is missing, and what needs to change before it becomes a field problem.
Contact us today to get started.
Independent HVAC controls review and optimization services by a PE licensed in NY, NJ, and ME. Serving mechanical contractors, controls contractors, commissioning agents, and MEP firms on commercial, industrial, and institutional projects.