For Building Engineers
Ventilation optimization you can verify.
Most HVAC sequences run on ventilation assumptions set years ago. We measure what's actually happening — and help you tune it without a controls replacement project.
The problem
The BAS doesn't know
what it doesn't measure.
Most buildings run ventilation from assumptions: design intent, past commissioning, or "safe" conservative setpoints. But occupancy, tenant use, schedules, and equipment drift over time. The result is usually one of two problems: over-ventilation (conditioning more outdoor air than needed) or under-delivery in specific zones (uneven clean-air delivery and hard-to-explain complaints).
How the program runs
Measure. Tune. Verify.
We work with your engineering team through a structured process designed around operator reality — not theoretical models.
Plan with your team
We review your system configuration, schedules, and tenant constraints. Before we show up, we know which zones to prioritize, what access looks like, and what the comfort sensitivities are.
What we need
Primary contact, system one-liners, occupancy schedules
Baseline testing
We test representative zones in occupied conditions using aerosol tracers — the gold standard for accuracy. You get real ventilation rates, not estimates from a drawing.
Duration
2–3 days on-site per building
Tune
We propose low-lift adjustments: outdoor air strategy, schedules, setpoints, economizer logic. You review and approve every change. We never modify settings unilaterally.
Your role
Review and approve — we don't make changes unilaterally
Verify and keep it tuned
We track performance over time and re-tune when building conditions change — tenants, schedules, retrofits.
Ongoing
Monthly reporting + drift detection
Compatibility
Works with real HVAC, not just ideal HVAC.
Poppy is designed to work across common commercial configurations:
- ✓Rooftop units and packaged systems
- ✓Central plant serving AHUs and VAV systems
- ✓Mixed systems across floors and tenant spaces
- ✓Existing DCV strategies (we tune baselines DCV can't address and validate outcomes)
What we don't require
- ✗A controls replacement project
- ✗A new sensor rollout project
- ✗A new 'AI BAS' overlay
- ✗Network access just to start the work
What we typically tune
- →Outdoor air minimums and reset strategies
- →Schedules and warm-up / cool-down logic
- →Economizer enable / lockout strategy
- →Zone-level ventilation balance and stubborn complaint zones
- →Filtration strategy alignment
Standards alignment
Support compliance without guessing.
We use ASHRAE-aligned testing to tune ventilation toward standards-based targets with real measurements from your building — making it easier to demonstrate compliance without relying on design assumptions.
- ✓ASHRAE 62.1 alignment — measured against your actual occupancy and conditions
- ✓ASHRAE 241 readiness where applicable, without compromising operations
- ✓Documentation you can share with ownership, compliance teams, and certifiers
Common engineer questions
Not to begin testing, and if changes require BAS updates, we will provide the precise prescriptions to your team or providers.
Your team stays in control. We provide recommended settings and can support implementation with your controls vendor or in-house staff.
Testing is designed around occupancy and access constraints. We minimize time in tenant spaces and plan ahead.
We'll quantify impact and options. If the fix costs more than the value, you're not forced into a bad decision.
Often yes. DCV helps with peaks, but many buildings still run conservative baselines. We measure what's actually happening and tune from there.
Bring us your toughest building.
We've worked on buildings where nobody could explain the comfort complaints. Often it's a ventilation issue. Free assessment for qualifying buildings — if it's not a fit, we'll say so early.