iO HVAC Controls

iO HVAC Controls is a manufacturer of HVAC zone dampers, zone control panels, fresh air ventilation systems, and specialty controls for residential and commercial heating and cooling applications. Founded in 2013 and headquartered in Indianapolis, Indiana, iO HVAC Controls manufactures the majority of its products in the United States. iO HVAC Controls products include the MD, CD, TD, and RM series zone dampers in round, rectangular, and specialty configurations; zone control panels supporting 2 to 12 zones; CO2 demand-controlled ventilation dampers; and makeup air systems. iO HVAC Controls zone control systems support EZ-Wire color-coded wiring terminals that simplify field wiring and reduce installation errors on multi-zone jobs. HVAC contractors specify iO HVAC Controls where multi-zone comfort control, fresh air integration, and straightforward field installation are the primary project requirements.

iO HVAC Controls Product Lines

Zone Dampers (MD, CD, TD, and RM Series)

iO HVAC Controls zone dampers are available in four series: the MD series for round ductwork in standard residential sizes, the CD series for rectangular ductwork, the TD series for heavy-duty applications, and the RM series for specialty round duct configurations. Zone dampers from iO HVAC Controls are motorized and designed for integration with iO HVAC Controls zone control panels, providing the duct-level damper actuation that zone control systems use to direct conditioned air to active zones. iO HVAC Controls zone dampers are manufactured primarily in the United States. EZ-Wire color-coded wiring terminals on iO HVAC Controls dampers reduce wiring errors during installation by providing a clear color reference for each control wire connection.

Zone Control Panels

iO HVAC Controls zone control panels manage multi-zone HVAC systems, supporting 2 to 12 zones through a combination of base panels and expansion configurations. Zone control panels from iO HVAC Controls handle zone thermostat inputs, zone damper outputs, HVAC equipment staging, and bypass damper management in a single control platform. Panels support both heating-only, cooling-only, and heat/cool HVAC equipment types including heat pump systems. The zone panel platform is designed for contractor installation with EZ-Wire terminals and clear labeling, reducing commissioning time on multi-zone projects. iO HVAC Controls panels are compatible with standard 24VAC thermostat wiring used in residential and light commercial HVAC systems.

Fresh Air and Ventilation Systems

iO HVAC Controls fresh air systems include CO2 demand-controlled ventilation dampers and controllers, makeup air dampers, and outdoor thermostats for ventilation management in residential and light commercial HVAC systems. CO2 demand-controlled ventilation opens the fresh air damper when indoor CO2 concentration rises above the ventilation set point, providing outdoor air only when occupancy requires it. Makeup air dampers from iO HVAC Controls introduce controlled outdoor air into the return air duct for ventilation in tight residential construction. Equipment security devices and wireless lodge watch products from iO HVAC Controls extend the product line beyond zoning to include HVAC equipment monitoring and protection applications. Fresh air products from iO HVAC Controls integrate with the zone control panel platform for coordinated ventilation management.

Why Contractors Specify iO HVAC Controls

HVAC contractors specify iO HVAC Controls because the company designs and manufactures its products in the United States and has built a product line specifically around contractor installation simplicity since its founding in 2013. EZ-Wire color-coded wiring terminals on dampers and control panels reduce installation errors on multi-zone jobs by providing a clear wiring reference without consulting a wiring diagram for each connection. iO HVAC Controls zone panels support 2 to 12 zones in expandable configurations, allowing a single product family to scale from a two-zone residential retrofit to a larger commercial multi-zone project. CO2 demand-controlled ventilation integration in the iO HVAC Controls platform allows ventilation to be managed within the same control system as zone temperature. iO HVAC Controls products are available through HVAC supply distributors including SupplyHouse.

How to Choose a iO HVAC Controls Product

The primary selection variable for an iO HVAC Controls zone system is zone count. iO HVAC Controls panels support 2 to 12 zones; confirm the number of independent temperature control zones required for the project before selecting the panel configuration. Single-family residential projects typically run 2 to 6 zones; larger residential and light commercial projects may require up to 12 zones.

The second variable is damper series. Round duct applications call for the iO HVAC Controls MD or RM series round dampers; rectangular duct applications call for the CD series; heavy-duty applications call for the TD series. Measure the duct diameter or rectangular duct dimensions at each zone branch to confirm the correct damper size before ordering. Round dampers are sized by nominal duct diameter in standard inch increments.

For fresh air integration, confirm whether CO2 demand-controlled ventilation or continuous makeup air ventilation is the appropriate strategy for the project. CO2 demand control reduces ventilation energy use in variable-occupancy spaces by ventilating only when CO2 levels require it. Continuous makeup air suits tight residential construction where a fixed ventilation rate is required for code compliance regardless of occupancy. Match the iO HVAC Controls fresh air product to the ventilation strategy and confirm compatibility with the zone control panel model selected.

FAQs

When was iO HVAC Controls founded and where is it headquartered?

iO HVAC Controls was founded in 2013 and is headquartered in Indianapolis, Indiana. The company manufactures the majority of its products in the United States.

What warranty does iO HVAC Controls offer on its products?

iO HVAC Controls warranty terms are available at iohvaccontrols.com. Confirm warranty coverage for a specific iO HVAC Controls damper, control panel, or fresh air product with your distributor at the time of purchase.

What is the difference between iO HVAC Controls MD series and CD series dampers?

The difference between iO HVAC Controls MD series and CD series zone dampers is the duct shape they fit. The MD series is designed for round ductwork in standard nominal diameter sizes common in residential and light commercial HVAC systems. The CD series is designed for rectangular ductwork. Both series use the same motorized damper and EZ-Wire connection technology and are compatible with iO HVAC Controls zone control panels.

How many zones can an iO HVAC Controls system support?

iO HVAC Controls zone control systems support from 2 to 12 independent zones in expandable configurations. Base panels handle a set zone count; additional expansion configurations extend the system to up to 12 zones. Confirm the panel configuration required for the zone count at the installation site by consulting the iO HVAC Controls product documentation at iohvaccontrols.com.

Are iO HVAC Controls products compatible with heat pump systems?

iO HVAC Controls zone control panels support heat pump HVAC equipment, including equipment staging and emergency heat sequencing for heat pump systems in multi-zone applications. Confirm the specific iO HVAC Controls panel model includes heat pump compatibility for the heat pump system configuration at the installation site.

What is EZ-Wire on iO HVAC Controls dampers and panels?

EZ-Wire is iO HVAC Controls' color-coded wiring terminal system on zone dampers and control panels that identifies each control wire connection by color, reducing wiring errors during installation. EZ-Wire terminals allow a contractor to match wire color to terminal color without consulting the wiring diagram for each connection, which reduces installation time and callback risk on multi-zone projects.