Altaqua
Precision Cannabis HVAC

Intelligent Grow-Room Climate Control

Cooling, heating, dehumidification & ventilation in one custom-engineered, Siemens-controlled unit — holding tight temperature, humidity, and VPD across every grow stage.

Built to OrderDew-Point ControlSiemens PLC
What RebatesHVAC Rebates Available
Altaqua HVAC integrated with indoor grow room

Altaqua is a global leader in HVAC and refrigeration technology, backed by over 16 years of manufacturing expertise and more than 90 patents, with facilities certified under ISO 9001, ISO 14001, and ISO 45001. Originally specializing in indoor swimming pool climate control, Altaqua leveraged its experience managing high humidity, corrosion, and temperature-sensitive environments to develop advanced Grow Room HVAC Systems tailored for commercial cannabis cultivation.

Altaqua’s Grow Room HVAC System integrates cooling, heating, dehumidification, ventilation, and air sterilization into a single, intelligent unit — offering precise and automated control of temperature, humidity, and airflow. Designed to achieve ideal VPD (Vapor Pressure Deficit) conditions, these systems support consistent plant growth, higher cannabinoid and terpene yields, and stable environmental performance across all grow stages. With Siemens smart PLC controls, E+E humidity sensors, and Schneider Electric components, Altaqua provides unmatched precision, reliability, and energy efficiency for commercial-scale grow rooms.

Is a Grow Room HVAC System Right for Your Facility?

A grow room HVAC system isn’t defined by tonnage — it’s defined by how precisely it controls temperature, humidity, and VPD in sealed environments with high plant transpiration.

For

Sealed commercial cannabis facilities, 5–65 tons — mother, veg, flower & dry rooms.

Solves

Nighttime humidity spikes, VPD drift, and energy waste from AC + portable dehumidifiers.

Results

Stable 24/7 climate, lower kWh/lb, and audit-ready environmental control.

609–7,456
Pints/Day moisture removal
19–234 kW
Refrigeration capacity
220/380/460V
Power supply
Air · Water
Split · Packaged
Configuration options
Altaqua Commercial Grow Room HVAC System

Commercial HVACD System — Built to Order

Altaqua HVAC unit with open service panel

Serviceable Design with Easy Access Panels

HVAC System Series

Altaqua Air-Cooled HVACD System

Air-Cooled HVACD Series

All-in-one sealed grow room climate system integrating dehumidification, air conditioning, heating, and ventilation. Designed for mother, veg, flower, and dry rooms. 5–65 ton range with integrated hot gas reheat for energy efficiency.

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Altaqua Water-Cooled HVAC System

Water-Cooled HVAC Series

Closed-circuit cooling optimized for extreme climates and hot regions where air-cooled condensers lose efficiency. Same integrated dehumidification and climate control with superior performance in high ambient temperatures — up to 30% energy savings.

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Altaqua Packaged Rooftop HVAC Unit

Packaged Rooftop Units

All-in-one rooftop units for larger facilities handling heavy sensible loads. Scalable configurations that free up indoor floor space, with automatic day/night mode-switching. Ideal for new construction and roof-routed ductwork.

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Altaqua grow room HVAC airflow diagram showing supply air, return air, air ducts, and condenser

Integrated Airflow Design — Supply & Return Air with External Condenser

Altaqua HVAC product lineup - three system sizes

Custom Configurations for Every Facility Size

Altaqua manufacturing facility with HVAC units in production

Dedicated Manufacturing — Built to Your Specifications

What Makes Altaqua Different

Built to Order

Every system custom-engineered for your facility. Voltage (220/380/460V), frequency (50/60Hz), refrigerant (R32, R410A, R454B), filtration (MERV-8 standard, MERV-13 optional), and airflow direction (top or side) all configured to your spec.

Dew Point Control

Unlike conventional systems that measure relative humidity, Altaqua controls dew point directly — not affected by temperature fluctuations. More accurate than RH-based control for consistent yields and quality across every growth stage.

Siemens PLC Intelligence

Siemens Smart PLC with touchscreen HMI automatically adjusts based on growth stage, light cycles, and environmental data. Set your target humidity and temperature — the machine dynamically adapts by switching functions in real time.

E+E Austrian Sensors

±2.5% RH and ±0.54°F accuracy from Austria’s E+E brand. Combined with Schneider Electric components for excellent reliability, long service life, and customizable operating parameters. Precision VPD control at every stage.

WiFi & Modbus Remote

24/7 real-time monitoring and remote control via WiFi from any device. Automatic fault alerts prevent serious problems. Modbus integration connects seamlessly to building management systems for centralized facility oversight.

Redundant & Scalable

Up to four independent multi-stage circuits in a single system. When loads drop below peak, the system modulates to save energy. Built-in redundancy means if one circuit fails, the others keep running — protecting your crop 24/7.

17+
Years Manufacturing
97
Patent Applications
3x
ISO Certified
ETL
Intertek Certified
5–65T
Tonnage Range

Optional Customizations

  • +WiFi remote control & mobile monitoring
  • +Modbus BMS integration
  • +UV-C air sterilization
  • +CO₂ level control
  • +Fresh air ventilation
  • +MERV-13 filtration upgrade

Premium Components

  • +Siemens Smart PLC & HMI touchscreen
  • +E+E Austrian humidity & temperature sensors
  • +Schneider Electric switchgear
  • +Ebm-papst GreenTech EC fans
  • +ABB frequency converter (condenser)
  • +Eco-friendly refrigerant options

Altaqua Grow Room HVAC in Action

Altaqua Siemens Control System Overview

Grow Room Dehumidifiers

Standalone AGD-series dehumidifiers for smaller rooms and dedicated lights-on / lights-off moisture control — more moisture removed per kWh with less heat added to the space. Water removal rated at 27°C / 60% RH.

Model Water Removal @ 27°C / 60% RH Airflow Power
AGD-078165 pints/day · 21 gal400 CFM1.49 kW
AGD-140296 pints/day · 37 gal736 CFM2.59 kW
AGD-278587 pints/day · 73 gal1,472 CFM5.01 kW
AGD-345729 pints/day · 91 gal1,742 CFM5.96 kW
AGD-5681,200 pints/day · 150 gal2,781 CFM9.10 kW