AHU Rooms - Flo2

— FLO2 · Built Environment

AHU Rooms & Central Plant

Performance monitoring and demand-based control for air handling units and central HVAC plant.

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Air handling units are the primary energy consumers in most commercial HVAC systems and the primary point of intervention for both energy optimisation and IAQ control. In the majority of installed buildings, AHUs operate on fixed schedules at design airflow, with no adjustment for actual occupancy, outdoor conditions or real-time IAQ feedback.

The gap between design intent and operational reality is where most HVAC energy waste accumulates. FLO2 connects AHU control directly to the conditions it is intended to manage.

Why It Matters

AHUs in large commercial buildings typically account for 35 to 50 percent of total HVAC energy consumption. Constant-volume operation at design airflow represents a significant inefficiency across part-load operating hours.
Fresh air damper positions and fan speeds set at commissioning are rarely revisited, even as occupancy patterns, building use and outdoor conditions change across the building's operating life.
LEED, WELL and IGBC require verifiable evidence of ventilation performance, not design-intent documentation alone.

What We Offer

VFD control on supply and return fans modulated against real-time IAQ.
Dynamic fresh air damper modulation based on zone CO₂.
Free cooling logic where outdoor enthalpy permits.
Open-protocol Modbus, BACnet and MQTT integration with existing BMS.

Benefits

30 to 60 percent reduction in AHU fan energy.
Fresh air supply matched to real-time zone CO₂.
Automated filter and maintenance alerts.
Open protocol BMS integration with no replacement required.

What FLO2 Provides

01

VFD Control on Supply and Return Fans

Fan speed modulated continuously against real-time IAQ readings and occupancy data from served zones. Fan energy, which scales with the cube of speed, is reduced significantly across typical part-load operating hours.

02

Fresh Air Damper Modulation

Outdoor air intake adjusted dynamically against CO₂ levels in served zones. Prevents both under-ventilation during high occupancy and unnecessary fresh-air load during low-occupancy periods.

03

Free Cooling Logic

Where outdoor enthalpy permits, FLO2 increases fresh air intake to reduce mechanical cooling demand. Particularly applicable in Bangalore and Hyderabad climates, where ambient conditions are favourable for extended periods.

04

AHU Performance Dashboard

Real-time visibility into supply air temperature, fan speed, damper position, filter differential pressure and energy consumption. Maintenance alerts flag filter loading and performance degradation before served zones are affected.

05

Open-Protocol Integration

Modbus, BACnet and MQTT connectivity with existing BMS. No proprietary middleware required.

Outcomes

AHU fan energy reduction

30 to 60 percent

Fresh air supply

Matched to real-time zone CO₂

Filter and maintenance alerts

Automated

Metric	Observed Range
AHU fan energy reduction	30 to 60 percent
Fresh air supply	Matched to real-time zone CO₂
Filter and maintenance alerts	Automated
BMS integration	Open protocol, no replacement required

Assess Your Central Plant's Energy and Ventilation Performance

A plant-level assessment identifies current AHU energy consumption, ventilation efficiency and the savings available through demand-based control, with findings structured for engineering and sustainability review.