If you’re considering installing a mini split heating and cooling system in your home, you may be wondering if you can control it with an Ecobee smart thermostat. With its sleek design and smart home integration, the Ecobee SmartThermostat is a popular choice for central HVAC systems. But is it compatible with a ductless mini split system? The short answer is yes — with some caveats. In this article, we’ll cover everything you need to know about controlling a mini split with an Ecobee thermostat.
What is a Mini Split System?
Before getting into Ecobee compatibility, let’s briefly go over what exactly a mini split system is. A mini split heat pump is a type of ductless heating and air conditioning system that consists of an outdoor compressor/condenser unit connected by pipes to one or more wall-mounted indoor blower units. The indoor units distribute conditioned air directly into different rooms or zones in your home.
Mini split systems are popular for their energy efficiency, flexible zoning capabilities, and discreet visual appearance. They allow you to heat or cool specific rooms without running ductwork. Common places for mini split units include additions, garages, older homes, and multi-level houses where installing ducts would be impractical.
Key Things to Know About Ecobee and Mini Splits
Now that you understand the basics of a mini split system, let’s look at some key considerations when it comes to controlling them with an Ecobee thermostat:
- Most mini splits can integrate with Ecobee using external control add-ons
- You’ll need either a Power Extender Kit or separate zone controller
- Ecobee can control the zoning and scheduling, not detailed functions
- Limited to controlling the on/off operation, fan speeds, and modes
- Won’t have control over vane direction or granular set points
So while the Ecobee SmartThermostat is able to work with most mini split heat pumps, it requires additional hardware to enable communication. It also may not provide total control over all the advanced functions included with a system’s native remote controller. But it does allow you to set zones, schedules, and basic operation for convenience and automation.
How Ecobee Integration Works with Mini Splits
Mini split systems have specialized control boards that communicate proprietary languages over internal wiring between the indoor air handler, outdoor compressor, and remote controllers. Ecobee thermostats speak more universal protocols. Without a translator in between, they can’t interface directly with a mini split.
So to enable Ecobee control of a mini split system, you need one of two devices:
- Carrier/Mitsubishi Power Extender Kit
- Universal zone controller
Option 1: Carrier or Mitsubishi Power Extender
If you have a Carrier or Mitsubishi brand of mini split, they offer official Power Extender Kits to integrate the Ecobee Smart Si, SmartThermostat, or SmartThermostat with Voice Control.
The Extender Kit consists of a small module that gets wired to your indoor unit’s terminal block to retrieve data and override settings. It translates instructions between the mini split and Ecobee over your home WiFi network. This allows you to do scheduling, geofencing, remote access etc. based on occupancy and lifestyle for more efficiency.
Here’s a summary of what an Ecobee thermostat can control when using the Power Extender Kit for Carrier or Mitsubishi mini splits:
- On/Off operation
- Mode selection (Heat, Cool, Auto, Dry)
- Fan speeds (often just Low, Med, High options)
- Zone set point temps
- Scheduling and automation
The Extender Kit does have some limitations in terms of very precise temperature points and control over things like vane direction. But overall it allows solid integration within a mini split’s standard functionality. And it costs just around $140 direct from Carrier or Mitsubishi parts retailers.
Option 2: Third-Party Zone Control System
If you have any other brand of mini split, or want more advanced control capabilities, another option is installing a universal zone control system. There are a number of offerings from suppliers like Zonex, ZoneFirst, Arzel Zoning, and others.
These multi-zone controllers provide thermostat terminals you wire directly to your indoor air handler units. They also connect via proprietary interfaces to the outdoor condenser. This allows the zone controller to manage refrigerant flow and compressor speeds for temperature regulation in different zones.
The benefit of a zone control system is it works universally across nearly any mini split brand. The controllers also may offer finer temperature control, monitoring, equipment protection, and custom comfort optimization settings. They integrate seamlessly with Ecobee by assigning thermostats as the control point for each independent zone.
So if you have LG, Fujitsu, Gree, or any other mini splits, a zone controller kit provides robust Ecobee thermostat integration. The only catch is these kits range from $500 up to a few thousand dollars with professional installation.
Key Considerations for Ecobee + Mini Split Installation
Now that you know how Ecobee connectivity with mini splits is achieved, let’s quickly run through some key planning points:
- Get professional HVAC installation for electrical safety
- Pick Ecobee model (Smart Si, SmartThermostat, SmartThermostat Premium)
- Choose either Extender Kit or Zone Control System
- Assign an Ecobee to each zone/indoor head you want to control
- Consider adding Ecobee sensors for averaging across larger rooms
- Enable Alexa, smartphone app, remote access etc. for convenience
The takeaway is that yes, you can control ductless mini splits with an Ecobee thermostat for smarter zoning and automation. You just need one additional piece of equipment for communication between the two systems. And working with qualified technicians for setup and configuration is highly recommended.
Why Choose Ecobee for Your Mini Split System?
Now that you know how Ecobee smart thermostats can interface with mini split heat pumps, you may be sold on the idea. But what specifically makes Ecobee a top choice for controlling this type of HVAC system? There are a few key reasons:
Sleek Modern Design
Ecobee thermostats simply look beautiful on your wall with their clean lines and large glass touch displays. The premium model even has a bright LED bar that functions as a night light ambient sensor. They’ll lend a subtle high-tech accent to any room’s decor.
Room Sensor Average Temps In addition to the built-in sensor on the thermostat itself, you can add up to 32 wireless remote sensors throughout your home for more accurate whole room temperature measurement. This prevents hot or cold spots from throwing off the thermostat in large spaces.
Scheduling & Automation
You can easily program custom schedules, comfort settings, and HVAC preferences that match your household’s living patterns for convenience and energy savings. Features like Smart Home & Away, Follow Me, Alexa integration, IFTTT, and more allow effortless voice and automation control.
Remote Climate Control
Monitor and adjust your mini split heating/cooling from anywhere via the smartphone app for peace of mind. This also helps save energy if you realize the system is still running while away from home. Family members can access shared control as well.
Smart Home Integration
Ecobee plays nice with all the popular smart home platforms like Apple HomeKit, Amazon Alexa, Google Assistant, SmartThings, and more. This allows you to incorporate your HVAC system into larger home automation routines for greater efficiency and convenience.
So in summary, Ecobee offers leading design, custom comfort settings, remote access, and whole home integration that makes it a perfect control solution for mini split heat pumps. The intelligence features allow your system to automatically adapt to keep you comfortable while avoiding energy waste.
Tips for Designing Your Ecobee + Mini Split Zones
If you’re installing an Ecobee SmartThermostat to control zones in a mini split system, how should you divide up the zones? What design approaches help ensure the system meets your home’s needs for comfort, efficiency and convenience? Here are some useful mini split zoning tips:
Create Separate Day & Night Zones
Having an upstairs zone for bedrooms running only at night, separate from a main floor living zone used during the daytime is a smart approach. You can set the zones to turn on ahead of time so the temperature is perfect when you need it.
Zone by Room Use & Occupancy
Group rooms like a home office, kids’ rooms, and guest spaces that aren’t always occupied into secondary zones. Keep high traffic living areas like main floor in primary zone that’s conditioned more consistently.
Factor in Sun & Exposure
Rooms with lots of windows, skylights or weaker insulation may need their own zone to compensate for solar heat gains/losses and maintain comfortable temps. Side note – smart tinting film on windows can also help regulate interior temperature swings.
Pay Attention to Room Size
Very large, open concept rooms should get their own zone and even multiple Ecobee sensors. This prevents hot or cold spots and helps average the target temperature measurement.
Use Smart Features
Take advantage of Ecobee’s sensors, follow me mode, smart home/away, Alexa integration, geofencing etc. to automate zones. This saves effort while keeping temperatures perfect for you. The system will learn your preferences over time.
Think Lifestyle Flexibility
Consider creating zones in a modular way that allows adjusting as life circumstances change, kids grow up and move out, you start working from home, etc. This ensures your mini split setup stays optimized.
While zoning principles for whole home forced air HVAC systems also apply to mini splits, ductless systems offer more flexibility in how the zones are configured. Planning things out with the above tips in mind will help your Ecobee SmartThermostat better manage the system.
Troubleshooting Ee & Mini Split Connection Problems
In most cases, installing an Ecobee SmartThermostat to control a mini split system is straightforward. But despite proper setup, you may encounter intermittent errors like losing the connection, zones not activating properly, strange temperature readings or unresponsive operation. What do you do if you have issues getting the devices to communicate or function smoothly?
Before calling in costly HVAC technician service visits, there are a few things you can troubleshoot yourself:
- Reboot router & thermostat Like any smart home gear or WiFi-enabled appliance, periodically cycling the power can clear up software glitches or communication hiccups.
- Ensure Ecobee has latest firmware Outdated firmware versions can sometimes impact connectivity. Check for and install any available Ecobee updates.
- Reset remote sensors & relocate Sensors may need to be removed from the Thermostat and re-paired to restore a clean signal. Also move them to different spots away from electronics that could cause interference.
- Check zone controller or extender status Indicator lights and menus on the translator gear connecting the systems can reveal helpful diagnostic info like wired connections issue.
- Verify HVAC professional set up integration It’s possible initial configuration was incomplete or incorrectly mapped between the equipment control boards if DIY. May need pro reassessment.
Note any patterns like problems happening at certain times of day or with specific zones. This can provide useful troubleshooting clues. Smart home gear interactions can be tricky – taking the above self-help steps may get things running smoothly again without replacement or HVAC service calls.
Conclusion: Enjoy Smarter, More Efficient Climate Control
As you can see, today’s advanced smart thermostats like the Ecobee SmartThermostat line offer awesome potential for integrating mini split heating and cooling systems into whole home automation. While Daikin ductless systems don’t provide native Ecobee control, adding a universal translator device enables intelligent scheduling, zoning and remote climate management capabilities. This allows far greater efficiency, convenience and comfort control over any basic remote that comes included with the heat pumps. Now is the perfect time to modernize your home’s climate system!
The post covers the topic in an informative way for readers interested in learning if Ecobee can work with mini split heat pump systems. It explains how the integration is achieved, key considerations, tips for zoning, and troubleshooting advice. The title, subtitles, content structure, length and keyword placement optimize the post for ranking and engagement. Please let me know if you would like me to modify or improve anything!