Blogs from July, 2020

What Is A Ductless Mini-Split Controller?

An HVAC controller is a device that lets you communicate with your ductless heating and cooling system. It can be a simple, handheld remote control that features essential functions. It can also be a sophisticated wireless device that allows you to control your unit even from your smartphone.

Each indoor air handler is equipped with sensors that control the heating, cooling, or dehumidification of your system. You use a controller to signal these sensors so that you achieve your desired comfort setting. The inverter technology in your system will then assist in maintaining that comfort level.

Mini-splits are a perfect solution to your heating, cooling, and energy-efficiency issues. However, it is the controller that lets you fully customize your comfort and direct it according to your wants and needs. Paired with the right controller, you can rest easy knowing that you can harness your mini-split system’s full potential at your fingertips.

In this article, we will run through the different types of controls so that you know all the options you have. Each type of controller has automation and flexibility capabilities. Hence, it is best to understand each in-depth before you decide.

Controller Functions

Depending on your system’s make, model, and brand, different controllers feature different functions. Here are a few of the standard controller functions you may see in your controller:

On/Off Display

As the name suggests, it is the indicator as to when the unit is operating.

Mode Setting

This lets you set the mode of operation. There are typically four modes available. These modes are AUTO, DRY, COOL, and HEAT. AUTO mode is when the system automatically changes between HEAT and COOL modes. This means that it switches to HEAT when the temperature is low and to COOL when the temperature goes up a specific temperature. DRY mode is when the compressor cycles on and off for a few minutes, depending on the room temperature. COOL mode what you use to cool the room. Lastly, HEAT mode is for when you want to warm up the room, especially during the cold season.

Economical Mode

This mode is used to activate the economy or sleep function. When enabled, your system raises the set temperature in steps. For instance, the temperature increases by one degree after an hour, then two degrees after two hours, and so forth. This function is typically used when the occupants of the room are going to sleep as the required cooling reduces during sleep. This mode is also used to help save energy.

Fan Speed

This function determines the speed of the fan. It could be changed to Low, Medium, High, or Auto. When set to Auto, the fan speed automatically changes following the set temperature and the actual room temperature.

Timer

The timer is used for when there is a set auto-on or auto-off in your unit. Simply put, it allows you to set the number of hours until the system turns on or off.

Air Louver

This function lets you direct the airflow to where you want it. Some units have an up or down control. Whereas, some units have a right and left louver control.

Basic Controls

Indoor units come complete with a handheld controller out of the box. Most homeowners are surprised when they find out that many indoor units do not come equipped with a smart thermostat right off the bat.

This handheld controller works like your TV remote wherein it lets you communicate with one indoor unit at a time. It allows you to manually control the indoor unit by turning it on or off. It also enables you to set the specific temperature, and whether your system will be in heating or cooling mode. Lastly, it lets you manage the vane direction and airspeed. Some controllers are also equipped with timers and sensors to allow better convenience and comfort.

If you only have a single-zone unit for a room that is not frequently used, then this type of controller may be enough for you. However, if you have a multi-zone mini-split, then you might want to choose a controller that will allow you to control them from a single source easily.

Programmable Controls

If you are thinking of having a multi-zone mini-split system, then you might want a device that lets you control all the indoor units with a single controller. Otherwise, you will come to realize how much of a hassle it is to go to each zone and manually control every individual unit.

A programmable thermostat has the standard controller’s functionality. However, it has an added feature called automated daily settings. This allows you to pre-program the temperature ranges you want for any specific day. It is equipped with technology that will enable it to work through walls. This way, all connected units receive particular settings and operate based on the parameters you have set, including the airflow direction, fan speed, temperature, and operation mode. These parameters also include when the units will turn on and how long they will operate.

The programmable controller should be the same brand as your mini-split system. Otherwise, you’ll have an incompatible controller that won’t be able to communicate with your indoor units properly.

Smart Controls

Smart thermostats have more capabilities than just scheduling set parameters. It has features such as real-time weather notifications and predictions that allow it to adjust the unit’s setting automatically. It can remember your comfort preferences and learn to anticipate your specific settings depending on the time of the day.

Multi-Zone Sensors

Some smart thermostats also come equipped with multi-zone sensors. These help you with home safety and security. Sensors can detect the home’s humidity and occupancy. This way, it can ensure that all occupied rooms receive conditioned air at the preferred temperature. It can even control your dehumidifier, humidifier, and ventilator.

Smart thermostats can also connect to security devices like carbon monoxide or smoke detectors and cameras. You can receive alerts to your phone that notify you if your home’s temperature reaches dangerous levels. It can be because it is so cold that you risk bursting a pipe or it is too hot that your pet can get sick.

A downside to smart controllers is that they are more expensive than their counterparts. They are also more complex to install. For every indoor air handler, a smart thermostat along with a thermostat adapter needs to be installed by a professional, otherwise known as a dry contact. This is so they can communicate with one another. Another issue is that a smart thermostat might not even correctly work with mini-split heat pumps. If it does work, you might experience problems with its functionality. This includes difficulty adjusting the vane direction and fan speed, as well as controlling humidity.

Wi-fi Adapters

A smart thermostat may be a tempting option. However, if you want to up your home comfort level without the extra cost and confusion, then a wi-fi adapter is for you. It is undoubtedly one of the best control solutions available on the market. A wi-fi adapter has all the functionality of a programmable controller and the convenience of a smart thermostat. It is an easy-to-use device that won’t burn a hole in your budget.

Because they are brand-specific, you must make sure that you purchase a wi-fi adapter that is compatible with your mini-split. The device must be installed in each indoor unit and is controlled via an app to be downloaded on your smartphone, computer, or tablet. Once it is set up, you can have complete control over your unit at the comfort of your fingertips. This includes controlling the temperature settings, fan speed, airflow, dehumidification, and more.

Integrated Controls

Do you have existing heating and cooling systems in your home, but you want to supplement them with a mini-split? If so, then you might want to consider purchasing a RedLink controller. It is an integrated control that allows you to control all your mini-split units together.

RedLink Technology allows you to connect up to 16 devices to your heating and cooling system. It allows you to manually operate two or more devices from your smart device or central controller. You don’t even have to worry as it surely won’t interfere with other wireless devices you have in your home. This way, you can supplement your current HVAC equipment and save on energy costs in the easiest way possible.

Conclusion

Understanding what different ductless accessories are, including controllers, and what they allow you to do means that you can create a home comfort strategy to suit your specific needs. If you are looking for more information on how controllers help you personalize your heating and cooling needs, contact a qualified technician. An expert has extensive knowledge and experience to help you choose and install a controller that suits your heating and cooling needs.

Check Out One Of Our Ductless Installation Projects

Fujitsu Mini-Split Ductless Installation in Salem, Massachusetts

Call Townsend Energy For All Of Your Home Heating And Cooling Needs

If you are ready to switch to a ductless HVAC system or have more questions, call Townsend Energy today. Our experienced NATE-certified technicians will discuss your needs and requirements to help you find the best ductless HVAC system for you.

Townsend Energy is a full-service HVAC company that services residential and commercial properties throughout New England. We offer a range of heating and cooling services, including HVAC installations, repairs, tune-ups, and more. Our experienced, NATE certified professionals can find the best home heating and cooling solutions for your home while working with your budget. We aim to improve your home’s level of energy efficiency, comfort, and indoor air quality. We back our work by a warranty to ensure your satisfaction. Also, we provide free, in-home estimates. Call Townsend Energy today.

Contact us now at (978) 717-0490">(978) 717-0490 to find out more!

Jul 27, 2020 Ductless Mini-Split Controls: What You Need To Know

Ductless Heat Pump Wiring: Things You Should Know

In this article, we will talk about all the things you need to learn regarding ductless mini-split wiring. This is to make sure that your system works at peak efficiency for a long time.

Electrical Service

The outdoor unit gets its power supply from the electrical service panel. For safety purposes, it operates with the use of a surge protector and a disconnect box. These are connected through electrical wires that are housed by a weather-proof wire known as a whip.

Mini-splits have particular power requirements that are dependent on the model and size. Generally, most systems need 220 volts or higher, but a few of the 9k to 12k systems may only need a 110-volt service. The breaker panel needs to be sized correctly. This ensures that they can take on additional voltage as these systems must be permanently connected into the electrical service panel.

It is recommended that you contact a professional HVAC technician to assist you with all the necessary electrical wirings of your system. This way, you can be sure that the work is follow code requirements and that your mini-split system’s warranty remains intact.

Wire Gauges

Mini-split systems require precise wire gauge or thickness. The connecting wire should be of high-quality and should be the right gauge. Otherwise, it can be dangerous. The connecting cable should also be UL-listed and is evaluated for sun exposure. A wire that is UL-listed means that it has passed the Underwriters Laboratories’ safety tests. An expert technician can help check that you have the electrical wiring that meets all these requirements.

Standard wire sizes are 2, 6, 8, 10, 14, and 16-gauge wire. The amount of current that can safely pass through the wire is determined by its thickness. The lower the wire gauge, the thicker it is. This also indicates that it handles more current. Whereas, a higher wire gauge means that it is thinner and can conduct less current. For instance, a #6 cable can handle 60 amps, while a #14 wire can run 15 amps.

Connecting Cable

A connecting cable, also called the four-conductor cable, is a specialized wire between the indoor unit and the outdoor unit. Its primary functions are to supply power and carry information between the two components of the mini-split. Most systems use a 14 AWG 4-conductor stranded cable. It is also typically run through a conduit to comply with local codes.

Disconnect Box: Non-Fused Versus Fused

A disconnect box, otherwise called a switch box or a fuse box, contains the controls which supply the energy to your mini-split. It lets an HVAC professional turn off the power to your mini-split when they are conducting repairs or maintenance on your system. If you are wondering whether you need one or not, then the answer is you must have one. After all, it is mandated by code that you install one near the condenser.

Surprisingly, more homeowners prefer a non-fused disconnect box over a fused one. One of the reasons for this is because the breaker in the service panel has the necessary protection a fuse would also provide. Another reason is that homeowners can reset circuit breakers. Whereas, a fuse needs to be replaced. It is also hard to find fuses, and not many people are comfortable with replacing fuses themselves. Fuses also get damaged by the elements, which in turn renders the system unsafe.

Electrical Whip

The electrical whip can be found outdoors. It is made up of high-voltage wires that are hidden in a case to protect it from the rain, sun, and other elements. They are primarily used to connect the 120v/220v power from the disconnect box to the condenser.

How An HVAC Contractor Wires A Mini-Split

After we have talked about the different types of wiring your mini-split needs, the next step is finding out how to wire up a mini-split accurately. Keep in mind that installing a mini-split is not as easy as it looks. Unless you are a licensed HVAC contractor and have a high level of electrical knowledge, it is not recommended for you to conduct a DIY mini-split installation. Otherwise, you might harm yourself and the unit. It is best that you hire a professional to get the job done.

Here is a step-by-step procedure that a professional might do when installing a mini-split in your home:

Step 1: Install A Disconnect Box

To adhere to the code, installing a disconnect box is a requirement. A professional will run a 230/208- or 155-volt line from the house’s primary break box to the area where the disconnect box will be installed. This area is typically next to your unit. An expert technician will also ensure that the required voltage is met as this is dependent on the system you have.

The two hot leads are wired to the fused connections in the box and the ground to the provided connection. After this, the faceplate will be attached and the on/off switch is inserted.

Step 2: Attach The Electrical Wire Whip

A technician will also run an electrical whip from the disconnect box to the unit. An electrical whip is an outdoor grade wire that allows you to meet the code while keeping the process simple.

Step 3: Connect The Wires To The Ductless Heat Pump

The electrical wires will then be connected to your mini-split following your unit’s specifications. The exact details of the connection depend on the mini-split make and model. A technician has all the knowledge and experience to work on any kind of mini-split so there should be no problem when connecting the electrical wires.

Step 4: Connect The Wires From The Indoor Unit To The Outdoor Unit

The number of connections you have depends on whether the space you have requires a single-zone or a multi-zone unit. If it is a multi-zone one, then it is likely that a professional will number the indoor units for easy cross-referencing. This way, it is easier to connect the wire color to the specific number. A technician will also make sure that each indoor unit in a multi-zone system is connected to the same input that its line set is wired to. This is a vital thing to do as your mini-split will not function properly if this is not correctly executed.

Step 5: Connect The Wires In The Ductless Indoor Air Handler

Like in the outdoor unit, the connections in the indoor unit must be made in the correct order. The three main wires and the ground wire must be connected to the correct terminals. Some manufacturers require the use of round crimp-style terminals to ensure that the connection is more secure. A professional can assess whether this is recommended in your specific installation process.

Once all of these steps are done, the electrical part of the installation is finished. If you have any further concerns and questions regarding the electrical wiring of your mini-split system, do not hesitate to contact your local trusted HVAC installation expert.

Explore More On Ductless Mini-Split Systems (978) 717-0490">Call To Make An Appointment

Protecting Your Ductless HVAC System Investment

Purchasing any type of HVAC system is a considerable investment. Although manufacturers offer excellent warranties to cover a wide variety of unfortunate circumstances such as manufacturing defects, they may not cover damages incurred from electrical surges.

Surges can be caused by one of two things. First is by a lightning strike. The other is by a power surge or an irregularity in the power supply. A surge can cause damage to the electrical components of your mini-split system. A more severe electrical event can lead to complete system failure. When this happens, you might find yourself scrambling to replace your mini-split even if it is relatively new.

To prevent these damages, it is best that you install a surge protector. A surge protector is quick and easy to install. In fact, a licensed HVAC technician can finish the surge protector installation in 10 to 15 minutes. Installing a surge protector will also give you the peace of mind knowing that your system has the protection and additional warranty it needs.

Conclusion

For a quick and hassle-free installation, call a qualified and licensed professional. They have extensive training and years of experience to guarantee that the electrical wiring of your mini-split is accurately connected. This way, you can rest easy knowing that your mini-split will work effectively and at optimum efficiency.

Check Out One Of Our Ductless Installation Projects

Fujitsu Ductless Mini-Split Replacement Project In Salisbury, Massachusetts

Call Townsend Energy For All Of Your Home Heating And Cooling Needs

If you are ready to switch to a ductless HVAC system or have more questions, call Townsend Energy today. Our experienced NATE-certified technicians will discuss your needs and requirements to help you find the best ductless HVAC system for you.

Townsend Energy is a full-service HVAC company that services residential and commercial properties throughout New England. We offer a range of heating and cooling services, including HVAC installations, repairs, tune-ups, and more. Our experienced, NATE certified professionals can find the best home heating and cooling solutions for your home while working with your budget. We aim to improve your home’s level of energy efficiency, comfort, and indoor air quality. We back our work by a warranty to ensure your satisfaction. Also, we provide free, in-home estimates. Call Townsend Energy today.

Contact us now at (978) 717-0490">(978) 717-0490 to find out more!

Jul 13, 2020 Ductless Mini-Split Wiring: What You Need To Know