AHR Expo 2026 - Viva Las Vegas!

AHR Expo 2026 – Las Vegas Recap & What’s Next

Earlier this month, we had the opportunity to attend the AHR Expo in Las Vegas—and once again, it proved why this is the premier event in the HVAC industry.

The energy on the show floor was strong. From established manufacturers unveiling next-generation equipment to startups introducing smart controls, monitoring platforms, and efficiency-driven technologies, the pace of innovation continues to accelerate. It’s clear that connected systems, smarter diagnostics, and streamlined installation tools are no longer “future trends”—they’re here now and gaining traction fast.

What stood out most this year wasn’t just the technology—it was the conversations. Contractors are looking for simpler installs and better support. Distributors want reliability and product availability. Manufacturers are focused on integration, scalability, and regulatory readiness. Those themes align closely with where our industry is heading over the next few years.

We had productive meetings with long-time partners and made several new connections that could open doors to exciting opportunities. While it’s still early, we’re exploring collaborations that could expand our product offerings, improve compatibility with emerging platforms, and bring even more value to our customers.

As always, events like AHR reinforce why we do what we do. The HVAC industry continues to evolve, and we’re committed to staying ahead of the curve—investing in smarter solutions, strengthening partnerships, and delivering products that make installation, setup, and support easier than ever.

Stay tuned—there’s more coming in 2026.

zoningsupply.com & ecojay.com

What Happened in HVAC in 2025 — 20 Key Developments

1. The Refrigerant Phase-Out Takes Effect — R-410A Out, A2L Refrigerants In

On January 1, 2025, the U.S. regulatory environment shifted dramatically for HVAC systems. Under the framework of the Environmental Protection Agency (EPA) and the American Innovation and Manufacturing Act (AIM Act), manufacturing of HVAC equipment using high-Global Warming Potential (GWP) refrigerants — notably R-410A — was phased out. New systems now must use lower-GWP refrigerants such as R-454B or R-32. ACIQ+2Riteway AC+2
This shift aims to reduce the environmental footprint of HVAC systems, but it also introduced challenges: supply shortages for A2L-rated refrigerants, increased equipment prices due to added safety and compliance requirements, and a steep learning curve for contractors that must become certified in new refrigerant handling protocols. HVAC Informed+2ACHR News+2

Other key impacts: older systems using R-410A remain serviceable, but long-term maintenance is likely to grow more expensive, and new installs in 2025 and beyond will bear the burden of compliance. Superior CO-OP HVAC+1

2. The Rise of Heat Pumps and Electrified HVAC — “Electric is the Future”

One of the major themes of 2025 was accelerated adoption of heat pump technology. Heat pumps — especially advanced systems capable of operating efficiently even in cold climates — made big gains in both residential and commercial sectors. HVAC Informed+2Building Decarbonization Coalition+2

The drive toward electrification reflects broader decarbonization goals. For many building owners and facility managers, switching from fossil-fuel-based furnaces or boilers to all-electric heat pump solutions meant long-term energy savings, reduced carbon footprint, and compliance with emerging efficiency and environmental standards. Building Decarbonization Coalition+2Merlin Monitor+2

As climate policy and incentives from governments push toward cleaner energy, heat pumps are increasingly seen not as a niche alternative, but as the default for new HVAC installs or major retrofits. ACHR News+1

3. The 2025 AHR Expo: Industry’s Big Showcase for Change

In February 2025, the AHR Expo (held in Orlando) served as a major inflection point — showing where the HVACR market is headed. Attendance was strong (50,807 participants), and hundreds of exhibitors displayed the latest in equipment, controls, refrigerants, and smart automation. ACHR News+2Avnan+2

Key themes at the show included: transition to A2L refrigerants, proliferation of smart/IoT-enabled HVAC equipment, rising demand for high-efficiency systems, and increased emphasis on sustainability and decarbonization. ACHR News+2HVAC Informed+2

For many contractors and building owners, AHR Expo 2025 underscored that changes already underway — in regulation, product design, and market demand — are not temporary: they represent a new baseline for the entire industry. Avnan+1

4. Efficiency Standards Tighten — New DOE/EPA Rules on SEER, HSPF and More

In 2025, minimum efficiency requirements for HVAC equipment got more demanding. Compliance with upgraded standards for cooling (SEER/SEER2), heating (HSPF2), and overall fuel utilization (AFUE) became more widespread, pushing manufacturers to produce more efficient and greener systems. Northstar HVAC/R+2Mar-Hy Distributors+2

For building owners with older HVAC systems, this raised the cost-benefit bar for replacement vs. maintenance. For new installations, it meant choosing systems designed for long-term energy savings — and possibly qualifying for incentives or rebates tied to efficiency and environmental performance. Northstar HVAC/R+1

5. Smart & AI-Driven HVAC Control Gains Traction

2025 saw increased interest in integrating AI, IoT, and data-driven controls into HVAC systems. One recent academic study, for example, proposed a “Human-in-the-Loop” (HITL) framework that adapts HVAC operation based on real-time user feedback and changing electricity market prices — improving comfort while reducing energy costs. arXiv+1

Meanwhile, other studies focused on advanced ventilation and air-quality control: a data-driven operator learning model showed how machine-learning + ventilation controls can optimize airflow and maintain indoor air quality while minimizing energy use. arXiv

The result: HVAC is no longer “set it and forget it.” Smart, responsive controls are becoming a core part of system design — especially for larger or multi-zone buildings. HVAC Informed+1

6. Widespread Adoption of VRF & Hybrid VRF Systems in Commercial Settings

Variable Refrigerant Flow (VRF) systems — long favored in niche commercial projects — saw a surge in 2025 adoption. The shift is driven by their flexibility, efficiency, and suitability for buildings needing simultaneous heating and cooling, or varied climate zones (e.g., offices, hotels, schools). Merlin Monitor+2HVAC Informed+2

Hybrid VRF systems (some combining refrigerant with water-based distribution) also gained traction, particularly in retrofit projects replacing legacy chillers or boilers. These hybrid systems offer decarbonization potential while lowering operational expenses. HVAC Informed+1

As more building owners look to reduce emissions and energy costs, VRF — once a “premium” option — is becoming mainstream. ACHR News+1

7. Market Disruptions: Refrigerant Shortages, Pricing Challenges, Supply-Chain Strain

The transition to A2L refrigerants wasn’t smooth. Many contractors and distributors reported supply shortages, difficulty procuring sufficient refrigerant for new installs, and delays in project timelines. ACIQ+2HVAC Informed+2

The result: some homeowners and building managers postponed HVAC upgrades or chose to stick with older R-410A systems (while still possible), creating a temporary “two-speed” market. Others opted for alternative solutions — like heat pumps, VRF, or heat-pump water heaters — that avoid refrigerant supply constraints altogether. Harvest Thermal+2Merlin Monitor+2

8. Increased Demand for Training & Workforce — Technicians Need New Skills Fast

With the new refrigerants, heat-pump systems, VRF technology, and smart/AI-driven controls, the skill set required of HVAC professionals expanded rapidly in 2025. Contractors must now be certified in handling A2L refrigerants, familiar with modern heat-pump installation and maintenance procedures, and capable of commissioning smart control systems. HVAC Informed+2Mar-Hy Distributors+2

This has exacerbated an existing labor shortage in HVAC, but also opened opportunities for training, specialization, and higher-value services. For many smaller HVAC firms, the transition represents a strategic inflection point — adapt or risk being left behind. Mar-Hy Distributors+1

9. Air-to-Water Heat Pumps & Thermal Storage Gain Ground — Toward Electrified HVAC for Heating Season

This year brought broader adoption of air-to-water heat pump (AWHP) systems, especially in colder climates or where building plumbing is compatible. AWHPs offer a flexible, all-electric alternative to boilers, often with better efficiency and easier integration in retrofit and new-build projects. Harvest Thermal+1

In many cases, AWHPs were being specified alongside thermal storage solutions — for example, using heat-pump water heaters (HPWHs) controlled with predictive algorithms to store hot water or heat during low energy-cost periods. Early field studies showed promising energy savings using model-predictive control (MPC) for HPWHs. arXiv+1

For building owners and developers focused on decarbonization and resilience, AWHP + thermal storage began to look like a “future-proof” heating and hot-water solution in 2025.

10. Smart HVAC Controls & Zoning Surge — Targeted Comfort, Lower Energy Use

Multi-zone HVAC control got a real boost in 2025. With rising energy costs, upgraded refrigerant mandates, and more homes/buildings requiring flexible comfort control, zoning systems gained traction — especially those that are easy to install, compatible with existing equipment, and can integrate with smart thermostats. ZoningSupply.com - Zone Control+2Ecology Jay+2

On that front, Ecojay’s release of SmartZone-4X 3.0 and SmartZone-3X 3.0 marked a notable milestone. The new 2025 controllers offer universal compatibility (gas, electric, heat pump, dual fuel, etc.), support for up to 20 zones (expandable), built-in fresh-air and economizer controls, de-humidification/de-humid modes, and configurable multi-stage control — all in a controller that installs far more simply than many legacy zone boards. Ecojay Products

The “3.0” update includes an improved bright color display, LED diagnostics on every terminal, fresh-air intake and humidity/economizer options — making zoning more accessible and practical for retrofits and new builds alike. EcoJay Products

For many homeowners and smaller commercial buildings that struggled with temperature imbalance, variable occupancy, or ductless HVAC discomfort — zoning with modern controllers became a go-to solution in 2025. As one distributor summary put it: for many applications, SmartZone 4X (or 3X) is the “clear winner” for universal compatibility, ease of install, and long-term reliability. ZoningSupply.com - Zone Control

11. Adoption of Smart Zoning & Dampers — Precision Airflow Control Comes of Age

Beyond just zone controllers, 2025 also saw growing interest in integrating smart dampers and automated airflow controls in HVAC systems. This allows for even finer-grained control: each zone’s airflow can be adjusted not just by thermostats, but by damper status, supply-air sensors, and system logic responding to occupancy, air quality, or humidity. EcoJay SmartZone Spec

When combined with Ecojay’s SmartZone 3.0 / 4X 3.0 platforms, these systems can offer multi-zone control, fresh air ventilation, economy modes, staged heating/cooling, and dehumidification — all with a relatively simple, retrofit-friendly install.

This trend — toward airflow optimization rather than “one-size-fits-all” heating/cooling — reflects a broader shift in HVAC: from brute-force temperature control to intelligent, adaptive comfort systems.

12. Smart / AI-Powered Building HVAC Controls — From Theory to Real Deployments

Several research efforts published in 2025 pushed HVAC control past fixed schedules and static algorithms: machine-learning, occupancy detection, predictive control, and feedback-driven comfort management moved from labs into real-world simulation and field-test phases. arXiv+2arXiv+2

For example, one “Human-in-the-Loop” (HITL) model dynamically adapts HVAC operation based on user feedback and changing electricity prices, improving comfort while reducing energy consumption. arXiv

Another framework used neural-operator learning to optimize ventilation airflow and vent angles, offering substantial energy savings while maintaining indoor air quality. arXiv

As smart building technology becomes more common, these approaches could reshape how HVAC systems are designed, installed, and operated — especially in larger residential complexes, offices, or other multi-occupancy buildings.

13. Security & Privacy Research — HVAC Systems as Attack Surfaces

2025 wasn’t all about efficiency and comfort — researchers also flagged emerging risks tied to the increasing complexity and connectivity of HVAC systems. One academic paper introduced a framework for detecting cyber-physical attacks on HVAC components (sensors, actuators, networked controllers), using machine-learning to catch anomalies while preserving privacy. arXiv

Even more startling: another study demonstrated that common HVAC pressure sensors can be used to reconstruct intelligible human speech — meaning that HVAC systems might inadvertently become privacy or eavesdropping vulnerabilities. arXiv+1

These findings introduced a new set of concerns for building owners and managers: as HVAC becomes smarter and more connected, security and privacy need to become part of the spec.

14. Thermal Storage + Heat-Pump Water Heaters — A New Combo for Efficient Heating & Hot Water

Leveraging smart control and predictive algorithms, heat-pump water heaters (HPWH) paired with thermal storage — once thought of as a premium add-on — began to emerge as a viable, practical solution for many homes and multifamily buildings. A recent field study showed that a 120 V HPWH managed by a model-predictive control (MPC) system could pre-heat water ahead of demand, reduce energy costs by ~23–28%, and slash energy waste compared to traditional systems. arXiv

For developers and retrofit specialists, the appeal is clear: combined with A2L-compliant heat pumps or all-electric HVAC systems, thermal storage + HPWH offers low-carbon, efficient heating and hot-water — and reduced dependence on gas or fossil fuel systems going forward.

15. Retrofits & Upgrades Surge — Aging Systems, New Standards, and High Demand

Faced with new refrigerant regulations, rising energy costs, and pressure to decarbonize, many homeowners and building owners opted in 2025 to upgrade or retrofit older HVAC systems rather than continue band-aid repairs. This included replacing older R-410A systems, installing all-electric heat pumps, adding zoning boards and dampers, or integrating smart controls for better efficiency.

Contractors and distributors reported a spike in remodel and retrofit requests — especially from clients seeking to bring older systems into compliance or improve comfort in older homes and small commercial buildings. ACHR News+2HVAC Informed+2

These trends signal that 2025 — more than a regulatory transition year — may be a peak moment for modernizing America’s HVAC stock.

16. Renewable & Geothermal HVAC Solutions Gain More Attention

As decarbonization momentum grew, the industry saw renewed interest in geothermal heating/cooling, solar-assisted HVAC, and other renewable-energy–integrated solutions. Contractors and stakeholders began to position these technologies not just as “green” options, but as viable long-term alternatives, especially where clients wanted to minimize reliance on fossil fuels. PR Newswire+2Northstar HVAC/R+2

In some jurisdictions, this trend dovetailed with incentives and regulatory pressure — a combination likely to accelerate adoption in the next few years.

17. Awareness of Indoor Air Quality (IAQ) & Fresh-Air Ventilation — Zoning Controllers Adapt

With increased focus on occupant health and building resilience post-pandemic, IAQ became more than just a “nice-to-have” topic. In 2025, many new HVAC products and controls emphasized built-in fresh-air intake, economizer modes, humidity control, and ventilation compliance with standards such as ASHRAE 62.2. EcoJay SmartZone SPEC

Zone control panels like Ecojay’s new SmartZone 3.0 / 4X 3.0 integrate fresh-air and economizer capabilities — making IAQ-focused ventilation part of the standard zoning package. Ecojay+2

For schools, multifamily residential, and commercial buildings, this shift underscored that HVAC isn’t just about comfort — it’s increasingly seen as a core element of occupant health, safety, and resilience.

18. Demand Surge & Backlogs — HVAC Supply Chain Under Pressure

Between refrigerant shortages, increased demand for heat pumps, and widespread retrofits, many HVAC contractors and distributors in 2025 found themselves with long lead times, backlogged installs, and stretched supply chains. Several reports pointed to delays in components, refrigerant cylinder shortages, and pressure on inventory of compliant equipment. ACIQ+2HVAC Informed+2

This environment drove up installation costs and wait times for homeowners — but also created opportunity for well-prepared contractors who secured materials early, invested in training, and offered bundled retrofit/zoning/upgrade services.

19. Growing Momentum for Building Electrification & Decarbonization — Regulatory & Market Forces Align

2025 felt like a turning point for building electrification. Regulatory pressure, incentives, public concern about emissions, and rising gas prices pushed more property owners to consider electrified HVAC, heat-pump water heaters, geothermal, solar-assist, and other low-carbon solutions. PR Newswire+2Merlin Monitor+2

As a result, HVAC design conversations began to shift. Rather than specifying “gas furnace plus A/C,” many architects, MEP engineers, and contractors started designing buildings from the ground up for electric heat — often with zoning, smart control, and renewable integration in mind.

20. Zoning & Damper-Based HVAC Control Comes Into Its Own — SmartZone 3.0 Leading the Way

One of the most notable developments in 2025 was the renewed focus on zoning and airflow control — especially for residential and light-commercial buildings. At the center of this movement was Ecojay’s release of SmartZone 3.0 (both 3-zone and 4-zone / multi-zone versions). Their new controllers — the SmartZone-3X 3.0 and SmartZone-4X 3.0 — combine universal compatibility (gas, electric, heat pump, etc.), support for up to 20 zones (expandable), built-in fresh-air and economizer controls, dehumidification modes, multi-stage staging controls, and a modern LED/status interface. EcoJay

For many homeowners, this meant zoning was no longer a niche luxury — it became an affordable, retrofit-friendly way to improve comfort, reduce energy waste, and manage airflow intelligently. According to distributors, SmartZone 4X 3.0 emerged as the “best overall” option for larger homes or light-commercial setups, while SmartZone 3X 3.0 offered strong value for mid-sized projects. ZoningSupply.com - Zone Control

For contractors, the simplicity of installation — screwless terminals, dip-switch configuration, built-in supply-air sensor, and LED diagnostic feedback — helped reduce install time and complexity, making zoning a more attractive upsell or retrofit option. ecojay.com

Overall, 2025 may have marked the moment when zoning and damper-based control finally became “mainstream” in HVAC — not just for luxury homes, but for ordinary homes and small commercial buildings too.

Looking Back — What 2025 Means for the Future of HVAC

2025 was a watershed year. The combination of environmental regulation (phasing out high-GWP refrigerants), rising energy / carbon awareness, technological advances (heat pumps, smart controls, AI, zoning), and shifting market dynamics (retrofitting, supply strain, demand surge) forced the HVAC industry — contractors, manufacturers, building owners — to adapt quickly.

What stands out is that many of these changes point to a longer-term transformation: from HVAC as a commodity “cooling/heating box,” to HVAC as an integrated, efficient, adaptive, and even healthy system — delivering comfort, air quality, energy efficiency, and environmental responsibility.

The rise of smart zoning (e.g., Ecojay SmartZone 3.0), air-to-water heat pumps, thermal storage, AI-driven controls, and electrified systems suggest that “HVAC 2025” is really “HVAC 2035.”

If you’re a homeowner, building manager, or HVAC professional — 2025 was more than a transition year. It was the start of a new era.

Understanding ECO / Away Mode on Ecojay SmartZone Controllers

What It Does, How It Works, and When to Use It (SmartZone-3X, SmartZone-4X, and with SmartLINK)

Ecojay’s SmartZone zoning controllers include a unique feature called ECO / Away Mode. Unlike energy-saving modes on thermostats or variable-speed systems, ECO Mode on SmartZone is specifically designed to control which zones are allowed to make equipment calls.

This article explains exactly what ECO/Away Mode does, how it affects damper operation, how to wire/activate it, and how it works in multi-board SmartLINK systems.

➡️ SmartZone Installation Guide: https://zoningsupply.com/smartzone34x-guide
➡️ View ECO Mode switch Product Page: https://zoningsupply.com/buy/eco-away-mode-switch

⭐ What ECO / Away Mode Actually Does

When ECO/Away Mode is active, SmartZone changes how heating or cooling is allowed to start:

✔ Only Zone 1 can energize heating or cooling equipment calls.

Zone 1 becomes the only thermostat that can initiate a call for heat or cool from the HVAC system.

✔ All other zones behave differently:

• If another zone is calling for the same mode (heat or cool),
  → its damper opens, but it cannot start the equipment.

• If a zone is already satisfied,
  → its damper stays closed.

• If all zone thermostats are satisfied,
  → all dampers open (normal SmartZone behavior).

ECO Mode does not change staging, delays, fan logic, or temperature thresholds.
It simply controls which thermostats can and cannot call for equipment.

This makes it extremely useful for vacation homes, commercial buildings, sleeping areas, or any application where you want the system to run only when Zone 1 wants it, while still allowing or preventing airflow to other zones.

🔧 How to Activate ECO / Away Mode

ECO/Away Mode can be activated using:

• A wall switch

• A relay / thermostat output

• A jumper wire

• Any 24VAC rated dry-contact

To enable ECO/Away Mode:

Connect 24V (R) to the ECO/Away input terminal on the SmartZone controller.
(This input is located above the Zone 1 thermostat connector.)

To deactivate ECO Mode, remove the jumper or switch the relay back to open.

This simple wiring method allows:

• A manual “vacation mode” switch

• Smart home automation integration

• Security system integration

• Time-of-day or occupancy-based control

🏠 What Happens to Dampers in ECO Mode?

When Zone 1 calls (heat/cool):

• Zone 1 → damper opens, and equipment runs

• Other calling zones → damper opens

• Satisfied zones → damper closes

When only non-Zone-1 thermostats call:

• Nothing, it is as if there are NO calls to the system.

• If Zone 1 begins to call, then the equipment will start and all similar calling zone dampers will open

When all zones are satisfied:

• All dampers open (SmartZone default)

This ensures airflow and comfort without allowing non-primary zones to start the system.

🧩 ECO / Away Mode in Systems with More Than 4 Zones (SmartLINK)

In SmartLINK multi-board systems (SmartZone+):

Each SmartZone board has its own ECO/Away Mode input.

This allows for two different ways to use the feature:

1. Entire System ECO Mode

If you want every zone in the system to behave in ECO Mode (except zone 1):

• Activate the ECO input on all SmartZone boards

• Typically this is done by wiring all ECO inputs together to one switch

• When the input on each board receives 24V → the whole system goes into ECO/Away Mode

• Note: If separate transformers are used to power each SmartZone, then a relay should be used to isolate the ECO inputs when switched.

Best For:

• Whole-building vacation mode

• After-hours commercial behavior

• Energy-saving schedules

• Remote disable via automation

2. Selective ECO Mode (Only Certain Boards Active)

This is a powerful feature that many zoning systems cannot do.

If only certain zones should be restricted:

• Energize only the ECO input on the board(s) you want in ECO Mode

• Boards not in ECO Mode continue normal operation

This allows some zones to:

• Start and run HVAC equipment

• While others are ECO-restricted to only open and close dampers

Real Example:
A 7-zone home using two SmartZone boards:

• Board A (Zones 1–4) → Normal

• Board B (Zones 5–7) → ECO/Away Mode active

Zones on Board B open their dampers when calling but cannot start equipment, while Zones 1–4 operate normally.

Perfect for:

• Bedrooms restricted at night

• Basement or bonus room zones restricted unless occupied

• Tenants, guest areas, offices, conference rooms

• Selective HVAC usage in multi-story homes

📘 Why Use ECO / Away Mode?

Installers and homeowners choose ECO Mode for:

✔ Vacation / Away Mode for the whole house

Only Zone 1 keeps the system running.

✔ Preventing non-priority zones from starting equipment

Useful in commercial buildings and multi-zone homes.

✔ Energy savings without shutting off zones completely

Zones still get airflow when equipment is running.

✔ Integrating with occupancy sensors or home automation

Automation can enable ECO Mode when zones are empty.

✔ Restricting equipment starts to supervised or conditioned areas

Zone 1 becomes the “manager” zone.

🧠 Common Misunderstandings (Cleared Up)

ECO Mode does NOT:

• Change temperature setpoints

• Alter staging

• Add time delays

• Modify heat pump balance points

• Increase or decrease fan runtime

• Close dampers automatically to save energy

ECO Mode DOES:

• Control which zones can tell the HVAC system to turn on

• Keep dampers in a safe, predictable position

• Allow airflow while preventing unnecessary calls

• Provide selective zone enabling in SmartLINK setups

Conclusion

ECO / Away Mode on SmartZone controllers gives you fine-grained control over which zones can make equipment calls while still providing airflow and comfort across the system.
It can operate system-wide or selectively, making it one of the most flexible features in SmartZone+ SmartLINK installations.

Whether you want a whole-home vacation mode, a commercial after-hours mode, or selective equipment control per zone, ECO Mode provides a simple, reliable solution.

ECO / AWAY Mode Switch

$9.99

Sale

SmartZone-4X 3.0

Sale Price: $269.99 Original Price: $299.00

SmartZone-3X 3.0

$189.99

HVAC Zoning - Zone 1 Priority Using ECO Mode on SmartZone

In many HVAC zoning applications, it’s beneficial to prioritize one thermostat — typically Zone 1 — so that its heating or cooling demand takes precedence over all others. This ensures the system responds first and foremost to the most important area of the building, such as a main living space, master suite, or temperature-critical zone.

The SmartZone makes this easy using its built-in ECO Mode feature. When ECO Mode is active, the panel ignores thermostat calls from all other zones and operates solely based on Zone 1.

By wiring the Zone 1 thermostat’s “G” call signal to the ECO terminal, the panel will automatically enter ECO Mode whenever Zone 1 is calling. When the call ends, ECO Mode is released and normal multi-zone operation resumes.

How ECO Mode Works

• ECO Mode Active: Only Zone 1 thermostat calls (heat, cool, or fan) are honored. All other zone calls are ignored until ECO Mode is released. NOTE: Zones 2 and up dampers will still open and close with calls from their respective thermostats as usual.

• ECO Mode Inactive: The system operates normally, responding to calls from all zones according to priority and demand.

This feature helps reduce short cycling between zones, saves energy, and maintains stable comfort in the most-used area of the home or building.

Prioritizing in Heat Only or Cool Only Modes

In some applications, it may be desirable to prioritize Zone 1 only during heating or only during cooling operation. This selective approach allows the system to favor one zone under certain conditions without restricting comfort for the rest of the building year-round.

1. Heat-Only Priority

When configured for heat-only priority, ECO Mode is activated only during a heating call from Zone 1.
This setup is ideal for applications where heating needs differ greatly between zones — for example:

• Two-story homes: The main level (Zone 1) tends to lose heat faster than the upper floor. Prioritizing Zone 1 during heating keeps living areas more comfortable and prevents overheating upstairs.

• Commercial offices: A front lobby or entrance area may require quicker heating recovery when doors are frequently opened to cold outdoor air. Giving Zone 1 heat priority ensures this space warms up first.

• Single furnace with multiple small zones: Helps avoid rapid cycling and ensures the furnace completes a full, efficient heating run focused on the primary zone.

In this case, ECO Mode can be tied only to the W (heat call) output from the Zone 1 thermostat.
(Refer to the “Heat Priority Wiring” diagram for details.)

2. Cool-Only Priority

For cool-only priority, ECO Mode is enabled only during a cooling call from Zone 1.
This configuration is useful when one area tends to overheat faster or carries the main cooling load — such as:

• Homes with large west-facing rooms: These spaces experience significant solar gain and may need cooling sooner and more often than interior zones.

• Light commercial buildings: A server room or glass-walled conference area may require priority cooling to protect equipment or maintain comfort during peak hours.

• Multi-zone systems with limited cooling capacity: Ensures the system focuses on critical cooling areas first, improving overall comfort and system efficiency.

In this setup, ECO Mode is wired to the Y (cool call) output of the Zone 1 thermostat.
(Refer to the “Cool Priority Wiring” diagram for details.)

When to Use Zone 1 Priority

Use Zone 1 priority when:

• One space represents the primary comfort zone for occupants.

• You want to minimize system short cycling caused by competing zone calls.

• The HVAC equipment has limited capacity compared to the number of zones.

• Efficiency and comfort are higher priorities than maintaining all zones simultaneously.

When not needed, the ECO Mode input can simply remain open (unconnected), and the SmartZone will resume standard zoning logic, responding to all thermostats equally.

SmartZone-3X 3.0

$189.99

Sale

SmartZone-4X 3.0

Sale Price: $269.99 Original Price: $299.00

How to Wire an Ecojay SmartZone Controller to a MrCool HyperHeat Ducted Heat Pump with 2-Stage Auxiliary Heat

Although this article is about a specific application, the wiring diagrams below can be used for any Heat Pump system with 2 stages of AUX (Auxiliary / Emergency) Heat.

When you’re installing a zoning system on a heat pump, wiring can feel a little more complex than with a standard furnace and air conditioner. That’s especially true with modern high-efficiency systems like the MrCool HyperHeat Ducted Heat Pump, which uses advanced inverter technology for precise heating and cooling, and includes two stages of electric auxiliary heat for colder weather backup. The good news is that with the right controller—such as the SmartZone 3.0—everything can be wired cleanly and reliably, giving homeowners the comfort of true zoned control without losing the performance features of their equipment.

---

The diagram below will show how to connect a SmartZone controller to a HyperHeat ducted system with auxiliary heat. Whether you’re a professional HVAC installer or a DIYer who’s confident working with low-voltage controls, this article will help you understand the wiring layout, terminal functions, and key considerations for making the system operate correctly.

PARTS NEEDED:

• SmartZone Controller

• 24VAC Delay-on-make relay (like the ICM102 or Supco TD69 or Mars 32391)

View fullsize

A delay-on-make relay is a simple timing device that waits a set amount of time after receiving power before it closes its contacts and energizes the connected load. In other words, when the thermostat or zone controller calls for heat, the relay doesn’t switch on immediately—it holds off for a few seconds (or minutes, depending on the setting) before passing power through.

In a heat pump system with two stages of electric auxiliary heat strips, a delay-on-make relay can be wired to control the second stage. The first stage energizes right away when auxiliary heat is needed, providing an initial boost. Then, if the call for heat continues, the delay-on-make relay activates after the preset time and brings on the second stage.

This approach helps prevent all the heating strips from coming on at once, which can cause large electrical surges and unnecessary wear on components. Instead, the stages are sequenced smoothly, delivering strong heating capacity when it’s truly needed while reducing stress on the system and the electrical supply.

NOTES:

• SmartZone manages single stage AUX without any additional wiring.

• W2 on SmartZone does not connect to W2 on Mr. Cool

• There are many variations of the time delay relay but the one we have linked below we have tested. However, any “delay-on-make” relay will work that is capable of enough current to energize the Mr. Cool input.

• The “W2” or AUX Heat 2nd Stage input must draw at least 0.04 A (40mA) to engage the relay style suggested here. If it doesn’t then an additional relay may be needed to make this work correctly. See diagram below.

One of the major benefits of pairing SmartZone with a ducted Mr. Cool system is that you’re not limited by the “one-size-fits-all” thermostat controls that come with most equipment. Instead, you get precise control over which zones call for heating or cooling, when the heat pump should stay on versus when backup heat should be engaged, and how to stage auxiliary heat efficiently.

The below wiring application can be used if the above does not work with the equipment brand/model you are using. It incorporates the time delay relay with a know working relay that is offered by zoningsupply.com to act as a load for the 40mA minimum that the ICM relay requires to activate.

View fullsize

SmartZone-3X 3.0

$189.99

Sale

SmartZone-4X 3.0

Sale Price: $269.99 Original Price: $299.00

24V Relay - DPDT

$14.99

WHAT TIME DELAY BETWEEN AUX STAGES?

Setting the delay-on-make timer to about 10 minutes strikes the right balance between comfort and efficiency. Electric heat strips draw a very high current load (often 40–60 amps per stage), so bringing them all on at once can create large inrush demands on the electrical service. By holding off the second stage, the system reduces unnecessary peaks in power consumption.

In many cases, the heat pump plus the first stage of auxiliary heat can satisfy the thermostat within that 10-minute window. This avoids running the second stage altogether, saving energy and lowering operating costs. But if the heating demand continues past 10 minutes—such as during extreme outdoor temperatures or when several zones are calling—the delay ensures that the second stage is available to maintain comfort without excessive lag.

In short, the 10-minute setting ensures the system uses the least amount of auxiliary heat necessary, prevents electrical overloads, and still provides strong backup capacity when it’s truly needed.

Ecojay SmartZone vs. Honeywell TrueZone: Which Zone Controller Is Better?

When it comes to residential HVAC zoning, the control panel is the brain of the system. It determines how effectively your home’s heating and cooling are distributed across different zones. Two of the most talked‑about options on the market are the Ecojay SmartZone series and the Honeywell TrueZone series. But which one is the better choice for homeowners and contractors in 2025?

Let’s break down both options, their pros and cons, and see which zone controller comes out on top.

Why Choosing the Right Zone Panel Matters

A zone control panel manages thermostats, dampers, and HVAC equipment so each zone in a home can be independently heated or cooled. The right panel makes installation simple, reduces troubleshooting headaches, and ensures maximum comfort and energy savings. The wrong choice can mean callbacks, frustration, and unhappy homeowners.

Ecojay SmartZone Overview

The Ecojay SmartZone 3.0 series (including the SmartZone‑4X and SmartZone‑3X) is a newer generation of zone panels designed with contractors and DIY‑savvy homeowners in mind.

Features and Benefits

• Universal compatibility with almost any 24VAC thermostat and damper system

• Supports conventional, heat pump, dual‑fuel, and multi‑stage systems

• Built‑in supply air sensor for equipment staging (up to 3H/2C)

• LED indicators for easy wiring and troubleshooting

• Simple installation and clear labeling

• Strong 5‑year warranty and U.S.‑based support

Pros

• Works with virtually any system configuration

• Faster installs thanks to intuitive wiring

• Reliable long‑term performance

• Excellent customer support and documentation

• Expandable (up to 20 zones) for future-proof install

Cons

• Ecojay does not sell or offer thermostats (This could be seen as a PRO because it means you are free to choose any thermostat you want)

Honeywell TrueZone Overview

The Honeywell TrueZone series (HZ322, HZ432, HZ311, etc.) has been around for years and is one of the most common zoning platforms found in homes today.

Features and Benefits

• Designed for 2‑, 3‑, and 4‑zone setups

• Familiar brand with widespread availability

• Works with most Honeywell thermostats

Pros

• Well‑known name in the HVAC industry

• Often used by contractors familiar with Honeywell systems

• Good availability through wholesalers

Cons

• Reported reliability issues, with frequent replacements needed after only a few years

• Must use Honeywell thermostats

• More complicated wiring and setup compared to SmartZone

• Limited staging and fresh‑air integration features

• Support is limited to “authorized dealers”

Which One Should You Choose?

If you want ease of installation, maximum compatibility, and long‑term reliability, the Ecojay SmartZone series is the clear winner. The SmartZone‑4X is ideal for larger homes (4 zones - Up to 20 with expandability), while the SmartZone‑3X is the best value for mid‑sized setups.

Honeywell TrueZone panels still have their place, especially for contractors who work mainly with Honeywell thermostats. However, reliability concerns and fewer advanced features make them less attractive for new installs in 2025.

Where to Buy Zone Control Panels

At ZoningSupply.com, you’ll find the full range of Ecojay SmartZone control boards, dampers, and accessories, along with replacement parts for Honeywell and Arzel systems. Whether you’re upgrading an existing setup or starting fresh, we have the products and support to make your project a success.

✅ Final Verdict

• Best Overall: Ecojay SmartZone‑4X (ZS4X‑3.0)

• Best Value: Ecojay SmartZone‑3X (ZS3X‑3.0)

• Still Available: Honeywell TrueZone (HZ432, HZ322) for legacy installs

Sale

SmartZone-4X 3.0

Sale Price: $269.99 Original Price: $299.00

SmartZone-3X 3.0

$189.99

When it comes to performance, reliability, and support, Ecojay SmartZone is the smarter choice for HVAC zoning in 2025.

ACCA News Briefs - ZoningSupply.com first feature

ZoningSupply.com is absolutely thrilled and honored to be featured in the latest ACCA (Air Conditioning Contractors of America) newsletter. The inclusion in ACCA’s June 6, 2025, edition is a significant recognition from one of the most esteemed organizations in the HVAC industry—an endorsement we don’t take lightly.

Why this matters so much to us

Being highlighted in ACCA's newsletter places ZoningSupply.com directly in front of professional HVAC contractors, engineers, and industry decision-makers. These are the people who depend daily on high-performance zoning systems and quality components to deliver market-leading comfort, efficiency, and precision to their customers. It's an invaluable endorsement that resonates on two fronts:

1. Industry validation. ACCA represents the gold standard for HVAC professionals. Their newsletter is a trusted source—so being featured underscores the reliability and merit of our products and services.

2. Broader reach. The ACCA newsletter goes out to a vast network of active contractors and technical professionals. This means our message makes its way into inboxes of contractors who might not yet know us—but absolutely need us.

What ZoningSupply.com brings to the table

At ZoningSupply.com, we specialize in top-tier zoning controls, dampers, thermostats, and accessories. Our passion and expertise lie in delivering:

• Precision control technologies: Enabling contractors to tailor environmental comfort on a room-by-room basis, effectively addressing load diversity and delivering from demand-driven comfort systems.

• Energy optimization: Helping homeowners and building managers reduce energy usage and increase HVAC system longevity through zoned control strategies.

• Contractor-centric support: We know how important it is for contractors to have dependable service, fast shipping, and easy returns—and we make that a priority.

Being featured in ACCA’s newsletter gives us a powerful opportunity to reinforce these messages. We see it as a chance to say, “Yes—you can trust us with your most demanding jobs. We’ve demonstrated our commitment to excellence and leading-edge solutions.”

How we’ll leverage this spotlight

Our ACCA feature isn’t just an accolade—it’s a platform. Here's what comes next:

• Deepened partnerships: We will connect with ACCA member contractors to share case studies, installation tips, and training resources.

• Enhanced educational outreach: We'll create webinars and white papers that dive into zoning best practices.

• Continued innovation: As ACCA elevates industry standards (through Manual J®, Manual D®, zoning specifications, etc.), we’ll stay at the cutting edge—introducing new thermostats, actuators, and communications modules aligned with ACCA methodologies.

A heartfelt thank-you

To ACCA: thank you for spotlighting us. Recognitions like this fuel our mission to empower HVAC professionals with smarter, more precise control solutions. And to ACCA members: we’re eager to deepen our collaboration, support your next zoning or retrofit project, and help drive industry-wide excellence.

Here at ZoningSupply.com, we’re motivated more than ever—thank you for featuring us, and for being a pivotal part of our ongoing journey toward precision comfort and energy-efficient HVAC innovation.

Solving Hot and Cold Spots with Ecojay SmartZone: The Key to Ultimate Home Comfort

The Problem: Uneven Temperatures in the Home

Have you ever noticed that certain areas of your home always seem to be hotter or colder than others? Maybe the upstairs bedrooms feel like a sauna in the summer, while the basement is freezing year-round. These temperature imbalances are a common problem in many homes, and they can lead to discomfort, higher energy bills, and unnecessary wear on your HVAC system.

The root cause of this issue is the way traditional HVAC systems operate. Most homes have a single thermostat that controls the temperature for the entire house. This means your system is either heating or cooling the whole home based on the temperature in just one location—often the hallway or living room. This single-point control doesn’t account for natural variations in temperature due to sunlight exposure, room usage, or airflow inefficiencies. As a result, you end up with hot and cold spots, leading to an ongoing battle with fans, space heaters, and constant thermostat adjustments.

The Solution: Smart HVAC Zoning with Ecojay SmartZone

Ecojay’s SmartZone system is designed to eliminate these temperature imbalances by intelligently controlling airflow throughout your home. Instead of relying on a single thermostat, SmartZone allows you to divide your home into multiple climate-controlled zones, each with its own thermostat. This means your HVAC system can send conditioned air only where it’s needed, rather than wasting energy heating or cooling the entire house when only certain areas need adjustment.

SmartZone works by using motorized dampers installed within your ductwork. These dampers open and close to direct airflow precisely where it's needed, based on the temperature settings in each zone. If your upstairs bedrooms are too warm, SmartZone will send more cool air to those areas while reducing airflow to other parts of the home that are already at a comfortable temperature. Conversely, during colder months, it ensures heat is delivered to rooms that need it most, eliminating the common problem of freezing basements and chilly bedrooms.

How SmartZone Improves Home Comfort

1. Addressing Hot Spots

One of the biggest benefits of SmartZone is its ability to tackle those notoriously hot areas in your home. South-facing rooms, upper floors, and rooms with large windows often receive excessive sunlight, making them warmer than the rest of the house. With a standard HVAC setup, these rooms remain hot because the thermostat in a different part of the home may not detect the higher temperature. SmartZone solves this by ensuring that cool air is directed to these problem areas exactly when it's needed, keeping the entire home comfortable.

2. Eliminating Cold Spots

Just as hot spots are a problem, so are cold spots—especially in basements or rooms that lack sufficient airflow. SmartZone allows you to send more warm air to these spaces without overheating the rest of the home, creating a balanced and even temperature throughout. No more bundling up with extra blankets or using space heaters just to make one room livable.

3. Customizable Comfort for Every Family Member

Every household has different temperature preferences. Some people like to sleep in a cool room, while others prefer a warmer environment. With SmartZone, each person can set their own preferred temperature for their bedroom or living space. This means no more thermostat wars between family members—everyone gets the comfort level they desire.

4. Energy Efficiency and Cost Savings

By directing heating and cooling only where it’s needed, SmartZone prevents wasted energy, reducing your HVAC system’s workload. This leads to lower energy bills and extends the lifespan of your heating and cooling equipment. Instead of running at full capacity for the entire home, SmartZone helps your system operate more efficiently, reducing wear and tear over time.

5. Smart Integration and Automation

Ecojay’s SmartZone system can be integrated with smart home technology, allowing you to control your home’s climate remotely. Whether you’re at work, on vacation, or just lounging in another room, you can adjust settings using a smartphone or tablet. Additionally, SmartZone can learn your household’s heating and cooling patterns, optimizing comfort and efficiency automatically.

Other Comfort Benefits of SmartZone

Beyond solving hot and cold spots, SmartZone provides additional advantages that contribute to a more comfortable home environment:

• Reduced Noise: Traditional HVAC systems often operate at full blast to heat or cool the entire house. With SmartZone, your system can run at lower speeds more often, resulting in a quieter operation.

• Better Air Quality: By controlling airflow more precisely, SmartZone helps distribute air more evenly, reducing stagnation and improving indoor air quality.

• Extended Equipment Life: Because your HVAC system doesn’t have to work as hard, it experiences less strain, leading to fewer breakdowns and a longer lifespan.

Is SmartZone Right for Your Home?

If you’re struggling with temperature imbalances and looking for a way to improve comfort while also saving on energy costs, Ecojay SmartZone is the perfect solution. It’s ideal for:

• Multi-level homes where upstairs rooms get too hot or too cold.

• Homes with large windows or sunrooms that experience extreme temperature variations.

• Families with differing temperature preferences.

• Anyone looking to increase HVAC efficiency and reduce energy bills.

Conclusion

No one should have to deal with hot and cold spots in their home. Ecojay SmartZone offers a powerful yet simple solution to this common problem by intelligently directing airflow where and when it’s needed. By customizing comfort for each zone, improving energy efficiency, and integrating with smart home systems, SmartZone transforms the way your HVAC system operates, ensuring a comfortable and balanced home environment all year round.

If you’re ready to take control of your home’s comfort and eliminate temperature imbalances for good, consider upgrading to Ecojay SmartZone. Your home—and your family—will thank you.

Sale

SmartZone-4X 3.0

Sale Price: $269.99 Original Price: $299.00

How to Operate an HVAC Zoning System Efficiently

Managing your home's HVAC system efficiently ensures comfort, energy savings, and longevity for your equipment. With a 4-zone SmartZone control system, Vine connected Wi-Fi thermostats, and EcoJay’s Outdoor Temperature Controller with free-cooling features (economizer), you have the tools to achieve optimal performance. Here are some tips to get the most out of your setup:

1. Set Smart Thermostat Schedules

Using the scheduling feature on your Vine Wi-Fi thermostats is one of the easiest ways to save energy:

• Create zone-specific schedules based on occupancy. For instance, prioritize heating or cooling in bedrooms during the night and in common areas during the day.

• Set back temperatures when zones are unoccupied. For example, raise the cooling setpoint by 4–6°F or lower the heating setpoint by 8–10°F.

2. Take Advantage of the Free-Cooling Feature

The free-cooling feature, also known as an economizer, can reduce energy usage by leveraging outdoor air for cooling when the conditions are favorable. EcoJay’s Outdoor Temperature Controller makes this easy:

• Understand the conditions for free-cooling: Free-cooling is effective when outdoor air is cooler than your indoor setpoint and has low humidity.

• Configure your economizer settings:

  • Set the temperature threshold on the Outdoor Temperature Controller to activate free-cooling (e.g., when outdoor temperatures are below 60°F).

  • Adjust the dampers to let in fresh, cool outdoor air while minimizing mechanical cooling.

• Use during transitional seasons: Spring and fall are ideal for economizer use, as outdoor temperatures are often moderate.

• Monitor system operation: Ensure the economizer dampers and controller are functioning correctly to avoid overcooling or bringing in excessive humidity.

3. Balance Zones Appropriately

• Ensure proper damper operation: Verify that the dampers for each zone respond correctly to thermostat commands. Stuck or malfunctioning dampers can lead to inefficiency and discomfort.

• Avoid extreme setpoints: Large temperature differences between zones can strain your HVAC system. Keep setpoints within 5°F to 10°F of each other for smoother operation.

• Minimize unused zones: If a zone is rarely used, set its thermostat to a minimal setting to conserve energy while ensuring the zone doesn’t fall too far out of the desired range.

4. Optimize Ventilation and Airflow

• Keep vents clear: Ensure furniture or curtains do not block air supply and return vents.

• Regularly clean filters: Dirty filters restrict airflow, making your system work harder. Replace or clean filters every 1–3 months, depending on usage.

• Inspect the ductwork: Leaks in ducts can lead to significant energy loss. Seal any gaps with professional-grade duct tape or mastic sealant.

5. Use Thermostat Features Wisely

Vine thermostats have smart features to enhance efficiency:

• Enable geofencing: This adjusts settings automatically based on whether you’re home or away.

• Monitor energy usage: Use the app to track heating and cooling patterns and make adjustments to schedules or setpoints.

• Utilize adaptive recovery: If your Vine thermostats support it, this feature gradually adjusts the temperature to ensure comfort by the time you’ve scheduled it, avoiding unnecessary overuse of the HVAC system.

6. Stay Ahead with Maintenance

• Inspect the economizer regularly: Dust, debris, or malfunctioning components can affect free-cooling performance. Clean and maintain the dampers, sensors, and outdoor air intake.

• Schedule professional checkups: A technician can ensure your entire system, including the SmartZone controller and economizer, is functioning efficiently.

Conclusion

Your SmartZone HVAC system, paired with Vine thermostats and EcoJay’s SmartZone PLUS Outdoor Temperature Controller, offers great potential for comfort and efficiency. By implementing smart schedules, leveraging free-cooling, balancing zones, and maintaining your system, you can enjoy a more energy-efficient and comfortable home.

Regular monitoring and adjustments ensure that your HVAC system meets your household's needs while keeping energy costs low.

Sold out

SmartZone-4X

$299.00

WiFi Thermosat -ST300

$99.99

Sale

Outdoor Air Thermostat

Sale Price: $59.99 Original Price: $79.99

NEW Product: Common Wire Adapter Kit

Sometimes, when upgrading to SmartZone or even when upgrading to a new modern thermostat without zoning, the existing wires running to the old thermostat do not have enough conductors to make it operate properly. It can sometimes be an impossible task to run a new wire to the location where the thermostat or SmartZone panel is located. For some time, we have been recommending the use of an “Add-A-Wire” kit from LUX to solve this problem but we are now offering a solution from Vine called a COMMON WIRE ADAPTER. This new solution is available at ZoningSupply.com and can be added to any thermostat that needs an additional wire.

Existing: Three (3) wires, Needed for upgrade: Four (4) wires

Existing: Four (4) wires, Needed for upgrade: Five (5) wires

Existing: Five (5) wires, Needed for upgrade: Six (6) wires

…

Common Wire Adapter Kit

$24.99

Works with any thermostat that needs a common wire. Nest, Honeywell, LUX, Vine, Braeburn, Trane, Johnson, Carrier, Bosch, and MANY MORE.

WiFi Thermosat -ST300

$99.99

Fresh Air for better Indoor Air Quality

When people think about increasing the Indoor Air Quality of their homes, most probably think about pollutants like smoke/smog or allergens like pollen. Since these originate “outdoors”, the most logical thought is to close up your home as tight as possible and get an air cleaner of some sort. Although air cleaners like filters can and do help reduce the particles in the air to a varying degree, there is MORE to AIR quality than just “cleaning” the air.

The most critical and often overlooked aspect of having good indoor air quality is FRESH AIR. This, in it’s simplest form, is bringing outside air … inside. The first thought of objection might be that it seems counter-intuitive to bring air in that could have pollutants to try and “clean” the air, however, the EPA and other independant studies by AHRAE have shown that the pollutants like pollen can be 2 or 3x as high as outside air if a home is not properly ventilated. (see link below for sources and further explanation)

EPA recommendations for improving Indoor Air Quality: https://www.epa.gov/indoor-air-quality-iaq/improving-indoor-air-quality

A “properly ventilated” house includes both the intake of fresh air and the exhaust of inside air. Most homes come equipped with plenty of exhaust either in the bathrooms or kitchen vent hood but many do not have nearly enough intake of outside air. As a matter of fact, up until the 2000s, most homes were not equipped with any Fresh Air management at all which means that the only outside air that was coming inside was through cracks around doors and window. You might think this was an accident but it was actually “designed” this way because it has been know for 100 plus years that outside air is necessary for a healthy and clean air environment.

SmartZone-4X has a built-in FRESH AIR controller, that can be used to automatically (or manually) bring fresh air into the building. It was designed as a feature to meet the ASHRAE 62.2 standard but has many additional and useful features that make it more desirable than a standard “Fresh Air Control” like the Honeywell W8150.

Shown below, the SmartZone can be used as a “stand-alone” fresh air controller even without the need for any zoning.

Find out more and learn about the Adavanced Fresh Air control features: FRESH AIR - Enthalpy Control

Buy SmartZone-4X for your Fresh Air control

Where's your Comfort Zone? - SmartZone can help!

During the cold days winter it's nice to get cozy by the fireplace or curl up under a warm blanket.. or in the summer you might find yourself standing in front of the air conditioner vents or a fan for a little relief from the heat.   Is this because it's just not possible for your entire home to be comfortable?  It may be because you are concerned with the energy use or $$ being spent to keep the home cool/warm OR it may be that certain areas of your home just never seem to be comfortable.  If one or more rooms in your home seem to ALWAYS be outside your "comfort zone", Ecojay's SmartZone may be able to help.  Directing airflow (heat/cool) to the rooms that you want, can make rooms in your home comfortable when you want them to be.

View fullsize

Learn more about how SmartZone will work for you

Sold out

SmartZone-4X

$299.00

Add to cart

PRO-Grade Power Zone Damper (Round)

from $69.99

Motor:

Select Motor YES Motor NO Motor

Diameter:

Select Diameter 4" 5" 6" 7" 8" 9" 10" 12" 14" 16" 18"

Add to cart

Home comfort hack: Could ZONE CONTROL improve your home's indoor climate?

Installing zone control in your home allows you to add thermostats to several areas (rooms) so temperature can be controlled throughout the house.  Most homes have only a single thermostat located in a "central" area.  This means the temperature of the whole house is determined at this one spot.  With zone control, temperature is measured and controlled in each zone for more comfort everywhere.

There are many reasons that zone control might be desirable (or even necessary). 

• Homes with two stories where the upstairs is regularly warmer than downstairs during the winter can benefit from zone control.  
• If a house has a fireplace that causes some areas of the home to get too cold when a fire is burning, zone control can help balance the temperature and keep those cold areas warm. 
• Bonus rooms or unused bedrooms can be turned off with zone control when not in use.
• Computer rooms or grow areas that need to be a different (more consistent) temperature than the rest of the house.

Zone control can balance temperatures to  create a comfortable living space throughout your home or create different temperatures throughout a building for varying needs.

---

CLICK HERE to find out more about how HVAC Zone Control works and if it will work for you.

ADD-A-WIRE with Zone Control

An ADD-A-WIRE device can be used when upgrading to thermostats that need a "COMMON" wire from one that didn't have one... and there is no way to run the additional wire needed.  This device, ranging from $15 to $40 can come in very handy especially in the case of zone control where one or more thermostat does not have enough wires to accomodate a modern thermostat such as a WiFi thermostat.

View fullsize

Be sure to follow the wiring diagram for the specific model of "ADD-A-WIRE" as well as the system type.  Show here is the LUX Products LPB-WH Power Bridge wired to a GAS/ELECTRIC thermostat and SmartZone-4X controller, however, the basic principal is the same for any application.

All of the different ADD-A-WIRE models come with instructions, read them carefully and follow exactly and you won't have any problems.

For more information about the method of ADD-A-WIRE when there is no way to run an extra wire from your zone panel to your equipment, check out this post:
https://zoningsupply.com/blog/upgrading-thermostats-solving-a-common-problem

From an engineering perspective this is an elegant and simple solution.  Without giving away trade secrets, the ones i have tested use the a half wave bridge using diodes at the thermostat and some simple relay logic plus the another half wave at the equipment (no micro necessary) to use only 1 wire for both Y and G signals.... brilliant.

For more information, or with any questions, please contact us.

MEP Drawings & Specs for Generic HVAC Zone Control System

Typical wording for HVAC Mechanical drawings to include SmartZone Zone control (2 to 8 zones):

“ECOJAY SMARTZONE ZS2X (2 ZONES) OR ZS4X (UP TO 4 TO 8 ZONES)

1. SMARTZONE CONTROLLER SHALL INCLUDE FLASH BASED MICROPROCESSOR FOR AUTOMATIC CONTROL OF UP TO 2 ZONES (ZS2X), 4 ZONES (ZS4X) OR 8 ZONES (TWO-ZS4X CONTROLLERS) ON A SINGLE HVAC SYSTEM.

2. SMARTZONE CONTROLLER SHALL INCLUDE LED DISPLAY WITH FULL TEXT STATUS
MONITORING AND DIAGNOSIS OF THE ENTIRE SYSTEM STATUS AND SUPPLY TEMPERATURE.

3. SMARTZONE CONTROLLER SHALL CONTAIN ELECTRONIC LIMIT CONTROL (ELC) SUPPLY AIR SENSOR WHICH ALLOWS CONSTANT MONITORING OF THE LEAVING (SUPPLY) AIR TEMPERATURE

5. PUSH BUTTONS SHALL ALLOW FOR DIGITAL ADJUSTMENT OF HIGH AND LOW LIMIT

4. IN THE EVENT OF SUPPLY AIR SENSOR OR SENSOR WIRING FAILURE, THE CONTROLLER SHALL CONTINUE OPERATING THE HVAC SYSTEM AS A SINGLE ZONE SYSTEM WITHOUT INTERRUPTION

6. ON HEAT PUMPS SYSTEMS, EMERGENCY HEAT MUST BE INITIATED FROM THERMOSTAT #1, NOT A SWITCH ON THE ZONE CONTROL BOARD.

7. EACH ZONE CONTROLLER THERMOSTAT TERMINAL AND EQUIPMENT TERMINAL SHALL HAVE A COLOR-CODED LED ALLOWING FOR EASY MONITORING OF THERMOSTATS AND SYSTEM CALLS.

8. ROUND ZONE DAMPER MOTORS SHALL BE 2-POSITION (OPEN/CLOSE) DESIGN WITH A SOFT-EDGE BLADE DAMPER SIZE AS ROUND DUCT IN WHICH BLADE GASKET AND SHALL BE POWERED BY 24VAC POWER OPEN / POWER CLOSE MOTOR DEVELOPING MINIMUM 10 IN-LB. OF TORQUE AT MAX 4 VA

9. RECTANGULAR ZONE DAMPER MOTORS SHALL BE 2-POSITION (OPEN/CLOSE) DESIGN WITH EXTRUDED ALUMINUM FRAME & LOUVERS & METAL SHAFT LINKAGES AND SHALL BE POWERED BY 24VAC POWER OPEN / POWER CLOSE MOTOR DEVELOPING MINIMUM 10 IN-LB. OF TORQUE AT MAX 4 VA

10. ALL ZONE DAMPERS SHALL INCLUDE ACCURATE, NON-ADJUSTABLE & ADJUSTABLE, BLADE POSITION INDICATOR AND ADJUSTABLE MINIMUM STOP CAPABILITY (MIN OPEN & MIN CLOSE).

11. AUTOMATIC, ELECTRONIC BYPASS DAMPER WITH STATIC PRESSURE CONTROL IS REQUIRED WITH 24V ELECTRIC ACTUATORS UNLESS NOTED OTHERWISE.

12. ZONE CONTROLLER, DAMPER MOTORS AND THERMOSTATS SHALL BE POWERED WITH A SEPARATE 24V FUSED TRANSFORMER (TYPICALLY 40VA) PROVIDED BY HVAC CONTRACTOR.

13. CONTACT ECOJAY.COM or 1-888-523-ECOJAY FOR MORE INFORMATION OR TRAINING
”

View fullsize

WiFi Thermostat Roundup 2017

Just a few short years ago, WiFi thermostats were only made by a very few companies starting with Ecobee and RadioThermostat, followed by Nest.  A couple of years pass and big names in the HVAC industry (Honeywell, Emerson, Venstar, etc) join the WiFi thermostat party.  In 2017 we have more to chose from than can easily be kept up with.  Note: All prices as of this article publish date.

All of the WiFi thermostats listed below will work with any SmartZone

I am sure there will be even more on the market in 2018, we will keep watching the WiFi thermostat bubble grow!  More than 15 are listed here (and I know they are not all listed).  If you know of any more, comment or tweet to us @zoning_supply

---

Bosch - $ 170, 4-Heat, 2-Cool, GE/HP, Hum, deHum, Color: White
https://www.amazon.com/dp/B073XHD8BB

---

Ecobee Si - $ 145, 2-Heat, 2-Cool, Color: White
https://www.amazon.com/ecobee-Thermostat-Heat-2-NON-Touch-Screen/dp/B008F40R4C/

---

TOP PICK

*Ecobee 3 - $ 169, 3-Heat, 2-Cool, Best for zoning in our opinion.
https://www.amazon.com/ecobee3-Smart-Thermostat-Works-Amazon/dp/B06W56TBLN/

---

PREMIUM CHOICE

Ecobee 4 - $ 247, 3-Heat, 2-Cool, Alexa-Enabled
https://www.amazon.com/ecobee4-Alexa-Enabled-Thermostat-Sensor-Amazon/dp/B06W2LQY6L/

---

Emerson Sensi Color Touch - $ 169, 2 Heat, 2 Cool, GE/HP
https://www.amazon.com/dp/B01N3CEUDH?psc=1

---

Emerson Sensi - $ 99, 1 Heat, 1 Cool, GE/HP
https://www.amazon.com/dp/B00HHE6CW2?psc=1

---

Nest - $ 249, 3-Heat, 2-Cool
https://www.amazon.com/dp/B0131RG6VK/

---

Honeywell Color Touch - $ 190
https://www.amazon.com/Honeywell-TH9320WF5003-Touchscreen-Thermostat-Amazon/dp/B00G4CIG7M/

---

Honeywell Lyric T5 - $ 110
https://www.amazon.com/Honeywell-RCHT8610WF2006-Programmable-Touchscreen-Thermostat/dp/B01LTHM8LG/

---

Honeywell Lyric Round - $ 170, Geofencing
https://www.amazon.com/Honeywell-Thermostat-Contractor-Version-Amazon/dp/B00KX3M1LA/

---

Honeywell Basic 7-day - $ 90, 1-Heat, 1-Cool, GE, Color: White (Yes this is WiFi--even though it doesn't look like anything other than an inexpensive thermostat)
https://www.amazon.com/dp/B00Y6M2OUC/

---

Honeywell B&W Touch - $ 118
https://www.amazon.com/Honeywell-Wi-Fi-Programmable-Touchscreen-Thermostat/dp/B00EP6C8UA/

---

iDevices Thermostat - $ 112
https://www.amazon.com/iDevices-Thermostat-Wi-Fi-Works-Amazon/dp/B019GQM6LY/

---

VALUE CHOICE #1

Lux PRO GEO - $ 115, Geofencing, Mount Vertical or Horizontal, Color: Black or White
https://www.amazon.com/Lux-Products-GEO-WH-Thermostat-Amazon/dp/B010PTKWW6/

---

RadioThermostat - $ 99, 2-Heat, 2-Cool, GE/HP, Modules for Zigbee & Z-Wave
https://www.amazon.com/Radio-Thermostat-Programmable-Enabled-Controls/dp/B00KQS35XA/

---

VALUE CHOICE #2

*Vine - $ 99, Settings Knob, Color Screen & Night-Light
https://www.amazon.com/Vine-Programmable-Thermostat-Touchscreen-Nightlight/dp/B01JU1DZN8/

---

Vine Touch - $ 129 Color Touch Screen,
https://www.amazon.com/Vine-Smart-Wi-Fi-Thermostat-TJ-919/dp/B01N7UNSAP/

---

Any information in this article should be verified with the manufacturer of each product listed.  Specifications, prices & availability are all subject to change and will not be kept current on this post.  Please email us if you have any questions.

ALSO NOTE:  We (I) have not been paid or compensated in any way for this article by any of the manufacturers of these products.  I have not even received any free product... anything reviewed has been purchased through retail outlets and tested with SmartZone zone control products for the use of ZoningSupply.com customers.  This information is not intended to be exhaustive or claim expert knowledge about all of these thermostats.  Thank you.

Need more than 40VA to power LOTs of dampers on one SmartZone?

Some systems with many small ducts leading to each zone can require lots of dampers.  The example below is a 2 zone system that requires 6 dampers per zone (12 total).  If you look at the zoning guide, you will find that you should budget for at least 55VA for this system... but you only have 40 VA transformers.  75 and 100 VA transformers can get VERY expensive!  Instead you can use two 40VA transformers, but not how you think.  It can be dangerous and unreliable to connect transformers in parallel to create ~80VA.  We recommend the method below that employs the use of a simple relay to separate half of the dampers to be powered from a second transformer and the other half being powered by the SmartZone and it's transformer.

View fullsize

See the SmartZone Install Guide to calculate required VA.

It is always necessary to verify that the PRIMARY side power is sufficient to power the transformer connected.  A dedicated PRIMARY circuit is best but not always possible.  If sharing the 110V or 220V circuit, make sure the total power required for all devices connected (including zoning transformers) doesn't exceed the capacity of the circuit (usually 15 or 20 AMPS).

Where to get a relay?
Any 24V relay with a DPST or DPDT configuration will work.  The one pictured in the above diagram is available at ZoningSupply.com (see below).   If you are chosing your own relay, the "Contact" current rating will determine how many dampers can be connected.  (For example: A 10 Amp relay can handle up to 10 power open, power closed dampers)

24V Relay - DPDT

$14.99

Add to cart

Power Open/Close Motor

from $79.99

w/ LEDs:

Select w/ LEDs NO YES

Add to cart

SmartZone is great opportunity for DISTRIBUTORS.

There are many reasons that distributors should take a look at stocking SmartZone, but basically because they can make more money & have a higher customer satisfaction with a very low up-front investment.

View fullsize

1. Only 2 models needed to cover all applications.
   A lot of manufacturers require stocking 5,6... even dozens of different products to get the best price.  With SmartZone, you only need the SmartZone-2 and the SmartZone-4X.  That's right, only 2 models will cover everything from 2 zones to 20 zones, single & multi-stage, gas/electric & heat pump (including dual fuel).  As a bonus, the SmartZone-4X has built-in Fresh-Air control.
    
2. Best wholesale pricing.
   Options for small and large volume distributors with 30 day NET terms pending credit approval.  Start with a small order or only 10 zone controllers.  Contact ECOJAY (www.smartzoning.com) for details.
    
3. Documentation & training.
   Ecojay is committed to supporting distributors with documentation, signs, marketing materials, phone & online support.  Ecojay will even do an in-person training for contractors at new distributor locations (minimum order required for free training - normal price for training $500)
    
4. Increase zone control profits & sales.
   SmartZone has allowed many of our distributors to increase sales of zoning because it is so much easier for contractors to use & install... they buy more.  Distributors of SmartZone also have increased margins on the higher-end controllers because SmartZone-4X can do everything the Honeywell HZ432 can do at a much lower price.
    
5. Contractors will love you for it.
   Even contractors that "don't do zoning" occasionally come across a system that needs it or a customer that wants it.  SmartZone is the best the the occasional zoning contractor or the contractor that does it every day.  Most contractors that try it, don't want to use anything else.

Right now, only about 25-35% of the US has physical distribution of ECOJAY products, specifically SmartZone.  This is a HUGE missed opportunity.  Online distribution reaches nationwide, but even this is in it's infancy.  SmartZone deserves to be on the shelf of your local distributor and contractors deserve to have access to it.  Right now it is available on Amazon.com, Ebay, ZoningSupply.com for contractors in the US & Canada to have in a couple of days shipping time.

It would be great if some of the large online supply houses like ... Supplyhouse.com or AlpineAir.com would stock SmartZone so it could be purchased and shipped along with systems.  Or some of the national-chain distributors like Johnstone would also carry SmartZone for the sake of availability and exposure to SmartZone style zoning.

SmartZone is not a new gimmic in zoning, it is simply the BEST traditional forced-air zone control board that is available.  SmartZone has been designed with the HVAC contractor in mind and it shows with the feedback that is received over and over again from contractors.  SmartZone has been shipping since 2004 and has had rave reviews from the beginning. 

Contractors that never liked zoning before even love SmartZone.  Many of the problems that people had 10 or 15 years ago with zoning such as freezing coils or short cycling have been solved by more sophisticated zone controls but SmartZone made it simple.  Using Ecojay SmartZone makes zoning simple.

Fact or Myth? #HVAC #Zonecontrol can save energy

First of all, if you are not familiar with HVAC Zoning (Zone control) for your home you can click here and learn more about how it works.

Sometimes, zoning is pitched as a device that can be added to your current HVAC system that will "save you energy" because you are able to turn "off" heating and cooling to areas that are not being used.  Sounds good, right?  Well...there a "but."  This as actually a highly debated or more aptly put... highly contested claim among HVAC professionals.

The simple fact is that it isn't a simple answer but the simplest version is:  HVAC Zoning CAN save energy in some applications.

Not all applications of zoning are intended to save energy, some are set up to optimize comfort.  In these situations, energy savings may not the top priority but it can still be set up to help save energy when the comfort is not in demand.

Zoning puts the control in the hands of the user (homeowner) via the thermostats.  These thermostats can be set to optimize energy savings or comfort... or, most likely, somewhere in between.

Some believe the primary purpose of zoning is comfort & I would agree, but, SmartZone can be used in some applications to save energy by reducing necessary run-time.

As far as I have found there have been very few and NO independent studies on the energy savings capabilities of hvac zone control but I have personally been in the industry for 14 years and I believe I know why.  Every test I have seen is try to prove some % of energy savings and yet there is a flaw with even the question that is being asked.  The problem with this question is that it is looking for an automatic percentage saving when zoning is installed.  I think this gets to the heart of why the professionals that dispute zone control's ability to "save energy" do so. 

This is an IMPORTANT NOTE:  HVAC Zone Control by itself will NOT save energy.  However, it CAN be used to save energy.

A proper study to prove that zone control CAN save energy would be straight-forward.   Two identical houses with identical hvac systems, one with a 2 zone system & the other with a single thermostat.  On the house with zoning, set one thermostat to OFF 12 hours per day and the other thermostat to run a normal 24hr / 7 day schedule.  The thermostat schedule should be the same as the 24hr / 7 day schedule in the house with only one thermostat.  This study would show that zoning can save energy if used in certain ways.

SmartZone has been around since 2004 and we have over 200,000 installed in the field.  We have seen direct feedback that empirically shows energy savings, not just in isolated cases but in extremely high volume.  First hand, real-world experience shows that it can be done, but it also shows that in cases where comfort is the priority... energy savings isn't a guarantee with zone control.

Check out SmartZone at ZoningSupply.com

Sold out

SmartZone-4X

$299.00

Add to cart

Get SmartZone at ZoningSupply.com

See why SmartZone is the best zone controller on the market.

ZoningSupply.com for all your zone control and damper products at the best prices with FREE shipping.