ClimaNexus, Intelligent IAQ & IEQ Control Platform

Built for Hot Humid Climates

Purpose built for Tropical Asia

Tropical climates present unique challenges compared to temperate zones. High humidity levels mean that the latent heat load (moisture) often surpasses the sensible heat load (temperature). ClimaNexus employs decoupled algorithms to manage sensible and latent loads independently, orchestrating them in real-time for optimal comfort.

Sensible–Latent Decoupling

Sensible heat (temperature) and latent heat (moisture) load the system through different physical paths. ClimaNexus operates two coupled state machines so cooling capacity is never spent solving a humidity problem.

Humidity Control as a First Class State

Humidity control is an explicit, instrumented state in the control machine, with target RH bands, measured deviation, and re-evaluation each control cycle. It is not a side effect of cooling.

Designed for Residential Split & VRF/VRV

Native integration with split unit, multi split, and VRF/VRV equipment dominant across Asian residential and small commercial buildings. Supports industry-standard protocols (Modbus, BACnet, MQTT) and Protocol Adapters for major VRF/VRV brands. Plug-ready via standard gateways.

Air Quality Coupled to Ventilation

PM2.5 in Asian cities varies hour by hour. Filter recirculation, outdoor air mixing, and ventilation rate are tied to live AQI readings and WHO AQG / TCVN 5687:2024 thresholds, not to fixed schedules.

Comfort in the tropics is a humidity problem first.

Why Now

The world is shifting from "installed systems" to "measured performance"

Energy efficiency is no longer optional, it is regulated, audited, and monetized
Indoor air quality is becoming a health metric, not a comfort feature
ESG and Net Zero commitments require operational validation, not design intent
Residential buildings, the largest built environment segment, remain structurally underoptimized

Sensors are affordable
Edge computing is reliable
AI is actionable

Yet the market lacks a unified control layer. This is the gap ClimaNexus is built to solve.

The Problem

Homes are filled with devices, but lack intelligence

Independent Operation

HVAC systems, air purifiers, ERV/HRV units operate independently

Unreadable Data

Data is available but not interpretable

No Control Logic

Control logic is inconsistent or absent

System Conflicts

Systems often conflict with each other

Poor IAQ despite high investmentEnergy wasteUnpredictable comfortNo measurable performance

The problem is not hardware.
The problem is the absence of a coordinated control system.

Our Solution

Standards compliant, deterministic, AI assisted environmental control platform

ClimaNexus adds a brain to your HVAC system: a smart control layer for health, safety, and efficiency. Beyond standard control.

IAQ Driven Operation

Ventilation and system behavior respond directly to CO₂, PM2.5, Temperature, and Humidity.

Deterministic Control Logic

Clearly defined states: NORMAL / IAQ_BOOST / HEAT_ASSIST / DEHUM / ALARM. Priority based execution ensures stable operation.

Safety First Architecture

Heating and dehumidification only activate when airflow is verified. Prevents unsafe or inefficient system states.

AI Assisted Optimization

AI improves performance parameters. But cannot override safety or core control logic.

Edge First Reliability

System runs independently of cloud. Ensures stability and fail-safe operation.

Multi System Integration

Compatible with diverse HVAC configurations. Supports scalable deployment across projects.

Behind your comfort is a deeply orchestrated, scientifically grounded control system. ClimaNexus is not just a connected device, it is the distillation of decades of HVAC engineering combined with artificial intelligence and big data, giving your home the ability to breathe, protect, and optimize energy on its own, sustainably.

Technology

System Architecture

Input

Sensors

→

Logic

Edge Controller

→

Output

HVAC Systems

↔

Optimization

Cloud AI

Sensors provide real time environmental data. Edge controller executes deterministic logic. HVAC systems respond dynamically. Cloud AI continuously optimizes performance.

How the algorithm works

Four core steps drawn from our patents

To deliver optimal comfort in hot-humid climates, ClimaNexus operates as an intelligent orchestration brain, shifting from single-reactive control to a model of decoupled and multi-objective coordination. This unfolds in four core steps grounded in our patents:

Decoupling

Step 01 · Independent load separation

Instead of using a single temperature reading to drive the air conditioner, the Edge Hub splits the room's demand into three independent processing channels.

Sensible load: drives the cooling coil or auxiliary heater based on the deviation between room temperature and setpoint.
Latent load: drives a dedicated dehumidifier from actual humidity and dewpoint, independent of how deep the air conditioner is running.
Ventilation (IAQ): prioritizes control of CO₂ and PM2.5 to deliver fresh air without unnecessarily disturbing the thermal balance.

Deterministic Logic

Step 02 · Parallel state-based execution

The system never runs overlapping commands. It classifies the environment into explicit Operating States with clear priority and timing rules.

IAQ_BOOST: activates when the air feels stuffy, prioritizing ventilation fans and VAV dampers.
DEHUM: activates when humidity exceeds the activation threshold, running the dehumidifier with timers that prevent the compressor from cycling on and off continuously.
HEAT_ASSIST: the most expensive state, auto-engages auxiliary heating when extended drying leaves the room too cool, keeping it comfortable yet dry.

Real-time Coordination

Step 03 · 500ms feedback loop

The ClimaNexus brain executes an ultra-fast feedback loop every 500ms (half a second), continuously re-reading the room and updating every device.

Conflict resolution: when two demands arise simultaneously (for example, fresh air and dehumidification), the orchestration algorithm prioritizes health (IAQ) first and humidity second, so devices play together like a coordinated orchestra.
Permission Gate: this is the final safety layer. Before any command reaches the auxiliary heater or dehumidifier, the system must verify Airflow proof, ensuring absolute safety and efficient heat exchange.

AI Optimization

Step 04 · Cloud advisor, never commands

The cloud AI layer never intervenes directly in machine commands. It acts as a quiet advisor that refines control parameters, learning each room's individual behavior.

Thermal and humidity inertia learning: the AI analyzes how quickly humidity and temperature change in each room, then adjusts activation thresholds to match each space's specific characteristics.
Anticipating demand: rather than waiting for the environment to deteriorate, a short-term load forecasting algorithm fires up devices early when more occupants are arriving or outdoor humidity is rising, sustaining comfort without any gaps.

The result: this orchestration completely removes the “cold but still damp” sensation typical of conventional AC, replacing it with a dry, clean living space sustained at the ideal temperature, automatically and reliably.

Not a deviceNot a BMSNot an app It is a control intelligence layer

Intellectual Property

Two patents, side by side

Filed 05 February 2026 with the Vietnam Intellectual Property Office. The System patent defines the physical architecture; the Method patent defines the reasoning that runs on it.

Architecture & Action

HVAC and Ventilation System

Application No. 1-2026-00971 · Filed 05 Feb 2026 · Vietnam

The physical foundation for the living space, sensors, edge hub, ventilation, heating, dehumidification, and a cloud AI assistant.

Unified collection

Wireless mesh (Zigbee/Matter) connects multi-metric sensor clusters (CO₂, PM2.5, T, Rh) into a senses network across the enclosed space.

Edge Hub, on-site brain

Receives and analyzes data locally at the point of use, no cloud round-trip required, ensuring true real-time response.

Decoupled action

Independently controls airflow, sensible heat, and latent humidity. Each demand is met precisely without system conflict.

Absolute safety interlock

Permission Gate activates auxiliary heating or dehumidification only with verified airflow, eliminating fire and equipment damage risk.

Multi-protocol compatibility

Modbus, BACnet, IR, and analog 0-10V supported, the system can command any actuator on the market.

Resilient autonomy

Maintains a safe, comfortable living space even when Internet is lost, preserving current parameters at the edge.

Logic & Optimization

Control Method and Controller for HVAC and Ventilation Systems

Application No. 1-2026-00972 · Filed 05 Feb 2026 · Vietnam

The reasoning layer, delivering measurable comfort and refinement through real-time loops, AI tuning, and predictive forecasting.

500ms feedback cycle

Collect, analyze, and command in half a second, sensitive to the smallest environmental change.

Smart preprocessing

Digital filters (MA/IIR) and debounce mechanisms remove sensor noise so every action is based on truthful data.

Short-term load forecasting

Computes rate of change (e.g., d(CO₂)/dt) to trigger ventilation early, preventing discomfort before it occurs.

Adaptive AI tuning

Cloud AI continuously learns usage patterns and space characteristics to update optimal hysteresis thresholds and timers.

IAQ-priority state management

Defined states (IAQ_BOOST, HEAT_ASSIST, DEHUM) with scientific priority order, ensuring best air quality while saving energy.

Reporting and monitoring

Detailed operational telemetry lets users see and measure comfort, safety, and energy in their living space.

ClimaNexus: Where Technology Meets Trust

The integration of system architecture and control method forms a unified ClimaNexus ecosystem, a closed operational loop from Collection → Analysis → Reasoning → Action → Reporting. The solution goes beyond technical parameters, transforming them into a perfect living space where comfort and health are constantly present, measurable with clearly defined criteria.

Standards & Compliance

Aligned with international and national standards

Methodology and operational thresholds calibrated to globally recognized health, building, and energy standards, plus the latest Vietnamese ventilation code.

WHO AQG

Air Quality Guidelines 2021

Health based PM2.5, PM10, NO₂, and O₃ exposure thresholds, defines what is safe to breathe.

WELL v2

Air Concept · features A01–A14

Building standard tied to measurable human health outcomes. ClimaNexus addresses the Air concept directly.

LEED v4.1

IEQ Credits · EQc1, EQc2, EQc4

Green building certification framework. Indoor environmental quality is one of nine credit categories.

ASHRAE 62.2

Residential ventilation

Minimum airflow rates and pollutant exposure limits for residential indoor air quality.

ASHRAE 90.2 / 55

Residential energy + thermal comfort

Energy efficient design for residential buildings, plus the PMV / PPD thermal comfort model.

TCVN 5687:2024

Vietnam ventilation code

Mandatory compliance for new buildings, issued January 2025. ClimaNexus is built around this code.

Technical Validation

Measured against a baseline, in simulation

Six zone Vietnamese apartment, full day operation. ClimaNexus orchestration vs. AC only baseline, no Hub 100, no ERV, no zoning.

Side-by-side simulation dashboard: Baseline vs ClimaNexus across 6 zones, temperature, CO2, PM2.5, energy, power-draw timeline, CO2 timeline

+116%

IAQ Health Index

Blended indoor air quality

−72%

Max CO₂ concentration

886 vs 3,170 ppm

−69%

Max PM2.5 reduction

24 vs 76 µg/m³

−27%

Energy reduction

Living-plot zone · kWh

6-zone simulation · PN = Phòng Ngủ (Bedroom), PK = Phòng Khách (Living Room), WC = Bathroom, Bếp = Kitchen · Methodology aligned with ASHRAE 62.2 (residential ventilation), 90.2 (residential energy), 55 (thermal comfort), WHO AQG, WELL v2, and TCVN 5687:2024.

Cooler. Cleaner. Less energy.
The trade-off is removed by control, not by capex.

Interactive Demo

Experience deterministic control in real time

A working visualization of how ClimaNexus orchestrates HVAC across multiple zones, built on the same logic that runs in production.

Live multi zone floor plan with simulated sensor data (CO₂, PM2.5, temperature, humidity)
Interactive state machine in action: NORMAL / IAQ_BOOST / HEAT_ASSIST / DEHUM / ALARM
Real time charts showing how decisions flow from sensors → edge controller → HVAC output
See exactly how Permission Gate Safety prevents conflicting system states

▶ Launch Interactive Demo →

Live Hub 100 simulator · 24h family cycle in Hanoi · Open full simulator →

Benefits

Multi Dimensional Value

For People

Healthier indoor air
Better sleep and comfort
Reduced cognitive load (no manual control)

For Buildings / Owners

20–30% energy savings
Predictable performance
Reduced operational inconsistency

For Society

Lower healthcare burden
Improved productivity
Measurable ESG outcomes

For Environment

Reduced emissions
More efficient energy usage
Sustainable building operation

Market Opportunity

Residential = the largest, most underserved segment

No standardized IAQ/IEQ control platform exists. Existing solutions are either too complex (BMS) or too fragmented (consumer devices).

ClimaNexus positions itself as the default control layer for residential environmental intelligence.

Competitive Edge

Built at the intersection of engineering, control systems, and AI

Deep Domain Expertise

HVAC engineering + control logic with decades of field experience

System Level Thinking

Not product level, we design for the whole environment

Scalable Architecture

Project → Portfolio → Region

Clear Market Focus

Underserved residential segment with massive potential

Leadership & Execution

A cross functional team combining engineering, technology, and market execution

Alex Dao

President & IP Owner

35 years in HVAC engineering. Patent inventor of ClimaNexus state based control with AI optimization.

Santiago De Los Reyes

CEO

International business leader. Drives global strategy, partnerships, and investor relations.

Dao Tuan Viet

CTO

10 years automotive embedded, Engineering Lead at LG (Telematics), now PMO for Honda program at FPT. PMP, PSM.

Nguyen Huu Tho

Products & Operations

25 years in HVAC design & construction. Product engineering, quality assurance, field deployment.

Dao Nguyen Ngoc

Supply Chain Manager

NYC University graduate. Supply chain specialist, procurement, logistics, vendor coordination.

Nguyen Thi Tam Thanh

Commercial Director

Dean of Industrial University of HCMC. B2B strategy with developers and institutional market expansion.

Starduct JSC

Manufacturing Partner

25 years manufacturing HVAC, VAV, fire dampers, ducts, ERV/AHU. Strategic hardware backbone.

This is not a concept team. This is an execution team.

Intelligent Environmental Controlfor the Next Generation of Buildings in Asia