Norton 4 Zone - AC Mini Split System is your go-to solution for year-round comfort! This high-efficiency mini split system features a powerful heat pump that operates effectively even in temperatures as low as -13 F. With its advanced inverter technology, this ductless heat pump quickly reaches maximum speed in just 6 seconds, ensuring you stay cozy in winter and cool in summer. The 4-zone split system allows you to connect up to three indoor units to a single outdoor unit, giving you flexibility and control over your space. Plus, with features like a built-in basepan heater, gold-coated coils, and refrigerant leak detection, you can trust Norton for reliable performance. Upgrade your comfort with the Norton Multi Zone Split System today!
HIGH-FREQUENCY INVERTER TECHNOLOGY: Enables the compressor to reach maximum speed within 6 seconds on start up HIGH-EFFICIENCY PIPES
Norton Multi Zone systems, with inverter technology, are some of today’s most advanced ductless split heat pumps. Up to 5 indoor units can be connected to a single outdoor unit, reducing the number of outdoor units required. All indoor units can be individually controlled and do not need to be installed at the same time.
With Norton heat pump technology, offers dependable cooling as well as the capability to heat in ambient temperatures as low as -13°F, making it an excellent, energy-efficient solution for colder climates.
Wall Mount • Modes: Cool, Heat, Dry, Fan, Auto • Turbo Mode • Four fan speeds • Sleep Mode • ECO Mode • Up-Down Louver control (fixed or swing) • Follow Me (senses temperature at handheld remote) • Quiet indoor operation • Aluminum Golden Hydrophilic pre-coated fins •(5yr Warranty) - Cut Sheets Below
Slim Ducted (Hidden/Concealed): Slim Ducts provide an inconspicuous solution, hidden in attics and ceiling crawl spaces, without the energy loss associated with central ducted systems. Slim Ducts offer flexibility of installation as the ducts can be directed into separate areas which are collectively controlled by one wall thermostat. For example, one slim duct can be directed to cool and heat hallways, closets, laundry rooms, and bathrooms of a home while the bedrooms themselves are controlled independently. Slim Ducts are available in 9K, 12K, 18K and 24K Btu/h models. Condensate pump built in. (5yr Warranty). Cut Sheets below
Extra Low Temperature Heating For when its cold outside, the heat output for this system is rated capacity down to -13° F, making this a primary heat source and eliminating the need for a backup heat source.
Stepless Frequency Adjustment Precise control of the system maintains stable and constant room temperature while reducing sound level and saving energy.
Norton Mini Split AC is your go-to solution for year-round comfort! This heat pump delivers powerful heating and cooling performance, even in temperatures as low as -13 F. With a remarkable SEER2, EER, and HSPF ratings, you can enjoy energy efficiency without sacrificing comfort. The package includes a sleek indoor unit with a remote, and an outdoor unit designed for durability and efficiency. Enjoy features like independent dehumidification, a 24-hour timer, and multiple modes including Turbo, Auto, Sleep, and Eco. The follow-me function ensures the perfect temperature wherever you are, while the easy-clean filter keeps the air fresh and healthy.
After looking for a way to heat and cool four different rooms in my house without the nightmare of installing ductwork, I settled on the Norton 4-Zone system. I wanted something that wouldn’t break the bank but still offered "Hyper Heat" capabilities for the winter. Here’s my honest take after living with it. I’ll be honest: this is a big project. Because it’s a 4-zone system, you’re dealing with four sets of refrigerant lines and four communication wires all running back to one outdoor condenser. It’s a serious piece of equipment. Don't cut corners on the install—get it done right, cover your line sets, and you'll have a system that makes you forget what "uncomfortable" feels like. It’s easily one of the best investments I’ve made for my home’s value and my own daily sanity.
Veterinary Hospital
Tommy H. Gonzalez · August 2025
After installing the Norton 4-Zone Mini Split Heat Pump AC in our veterinary hospital, I couldn't be more satisfied with its performance. Living in a place, where temperatures can vary, this system has proven its reliability. It efficiently heats and cools even when outdoor temperatures drop to -13°F, making it an excellent choice for year-round comfort. With the ability to connect up to five indoor units to a single outdoor unit, the system offers flexibility in installation. Each indoor unit can be individually controlled, allowing for customized comfort in different rooms. The included remotes make adjustments convenient and straightforward.
Four Zones, One Big Win
Lawrence Stine · June 2025
What really surprised me was how natural it felt to have four totally independent zones. I turned the guest room into a low-energy mode cave (since it’s empty most of the time), cranked up the cool in the kitchen where it gets stuffy fast, and fine-tuned the living room for comfort without blasting air everywhere. The system is silent in a way that almost feels suspicious at first—like, “is this thing even on?”—until you realize the room is just…perfect. It’s not flashy, it’s not complicated, it just works better than I thought it would. And that’s kind of the whole point.
Norton 4-Zone Mini-Split
David Pereira · May 2025
Quiet, efficient, and surprisingly easy to manage. It's like having a personal climate control system tailored precisely to my needs. Honestly, it has transformed my home comfort. It's the kind of upgrade you didn't know you needed until you experience it. If you're looking for a way to achieve perfect climate harmony in your home, look no further.
I'd definitely recommend checking this one out.
Bernard Rivera · April 2025
The real magic, though, is in the individual zone control. Now, we can each have our own little climate bubble! One thing I've noticed is how quiet the indoor units are. You can barely hear them running. Norton 4-Zone mini-split has made a significant difference in the comfort level of our home.
I wish I had made the switch years ago
Bradley T. Kemp · April 2026
The Norton 4-zone system provides consistent, independent temperature control for multiple rooms without the noise of traditional units. Its hyper-heat capability remains reliable during significant temperature drops, making it a functional year-round climate solution. While professional installation is necessary for the multi-zone setup, the resulting energy efficiency and quiet operation offer a practical upgrade over central air.
Got it fast, works good
Paul B. · April 2025
Got it quick, delivery was good- HVAC tch installed in one day, and its working good.
After looking for a way to heat and cool four different rooms in my house without the nightmare of installing ductwork, I settled on the Norton 4-Zone system. I wanted something that wouldn’t break the bank but still offered "Hyper Heat" capabilities for the winter. Here’s my honest take after living with it. I’ll be honest: this is a big project. Because it’s a 4-zone system, you’re dealing with four sets of refrigerant lines and four communication wires all running back to one outdoor condenser. It’s a serious piece of equipment. Don't cut corners on the install—get it done right, cover your line sets, and you'll have a system that makes you forget what "uncomfortable" feels like. It’s easily one of the best investments I’ve made for my home’s value and my own daily sanity.
E. Pryce · 2026-01-27
Veterinary Hospital
After installing the Norton 4-Zone Mini Split Heat Pump AC in our veterinary hospital, I couldn't be more satisfied with its performance. Living in a place, where temperatures can vary, this system has proven its reliability. It efficiently heats and cools even when outdoor temperatures drop to -13°F, making it an excellent choice for year-round comfort. With the ability to connect up to five indoor units to a single outdoor unit, the system offers flexibility in installation. Each indoor unit can be individually controlled, allowing for customized comfort in different rooms. The included remotes make adjustments convenient and straightforward.
Tommy H. Gonzalez · 2025-08-14
Four Zones, One Big Win
What really surprised me was how natural it felt to have four totally independent zones. I turned the guest room into a low-energy mode cave (since it’s empty most of the time), cranked up the cool in the kitchen where it gets stuffy fast, and fine-tuned the living room for comfort without blasting air everywhere. The system is silent in a way that almost feels suspicious at first—like, “is this thing even on?”—until you realize the room is just…perfect. It’s not flashy, it’s not complicated, it just works better than I thought it would. And that’s kind of the whole point.
Lawrence Stine · 2025-06-26
Norton 4-Zone Mini-Split
Quiet, efficient, and surprisingly easy to manage. It's like having a personal climate control system tailored precisely to my needs. Honestly, it has transformed my home comfort. It's the kind of upgrade you didn't know you needed until you experience it. If you're looking for a way to achieve perfect climate harmony in your home, look no further.
David Pereira · 2025-05-03
I'd definitely recommend checking this one out.
The real magic, though, is in the individual zone control. Now, we can each have our own little climate bubble! One thing I've noticed is how quiet the indoor units are. You can barely hear them running. Norton 4-Zone mini-split has made a significant difference in the comfort level of our home.
Bernard Rivera · 2025-04-26
I wish I had made the switch years ago
The Norton 4-zone system provides consistent, independent temperature control for multiple rooms without the noise of traditional units. Its hyper-heat capability remains reliable during significant temperature drops, making it a functional year-round climate solution. While professional installation is necessary for the multi-zone setup, the resulting energy efficiency and quiet operation offer a practical upgrade over central air.
Bradley T. Kemp · 2026-05-01
Got it fast, works good
Got it quick, delivery was good- HVAC tch installed in one day, and its working good.
Paul B. · 2025-04-11
Why Ductless Mini Splits
Experience superior comfort and energy savings with ductless mini splits, featuring industry-leading technology. These AHRI-certified mini splits use inverter technology and variable-speed DC inverter operation for optimal efficiency and quiet operation, with exceptional SEER2 performance that exceeds standard SEER ratings. Whether you prefer a wall mount, ducted, floor or ceiling-cassette design, these split air conditioner units give you zone control for precise heating and cooling in your home.
Key features:
Single or multi-zone capability for customized comfort
High-efficiency ductless design minimizes energy loss
Quiet operation for a peaceful living environment
Improved air quality with advanced filtration options
Flexible installation for any home layout
Manufacturer warranty included
Works With Alexa▾
Control your mini split with Alexa or Google Assistant, or remotely with an Android or iOS phone via Wi-Fi. Set schedules and control multiple rooms from anywhere — change your temperature settings from the office or while traveling, as long as you have an internet connection.
Energy-Star Certified▾
Our efficient mini splits are Energy-Star certified. With ultra-efficient ductless air conditioners you can expect to save upwards of 50–60% on your energy bills yearly — a great system for heating and cooling a home or business while minimizing long-term energy costs.
Heating and Cooling (to -13F/-22F)▾
Our Ultra-DC-Inverter technology lets these systems provide cooling and heating at up to −13°F/−22°F with up to 100% efficiency, so hyper-rated models can serve as your primary heat source all year round — even in the coldest climates. The hyper feature is available on most of our mini splits.
Auto Leak Detection and Diagnosis▾
Our ductless mini splits include self-cleaning, leak detection and self-diagnostics — all there to keep the system running properly for years. Enjoy peace of mind knowing your mini split will warn you of any equipment problems.
DC ULTRA Inverter Technology▾
The DC Ultra inverter compressor delivers a superb reduction in energy consumption, making these some of the most efficient systems with DC-inverter technology — it's what pushes mini splits to high SEER2 certifications while minimizing your energy costs.
Air Conditioner Size Chart▾
What BTU/ton for your area?
Square footage
BTU (ton)
100–200 sq ft
6,000 BTU | ½ ton
150–400 sq ft
9,000 BTU | ¾ ton
400–600 sq ft
12,000 BTU | 1 ton
600–800 sq ft
18,000 BTU | 1.5 ton
800–1,200 sq ft
24,000 BTU | 2 ton
1,200–1,500 sq ft
30,000 BTU | 2.5 ton
1,500–1,800 sq ft
36,000 BTU | 3 ton
1,800–2,000 sq ft
48,000 BTU | 4 ton
2,000–2,500 sq ft
60,000 BTU | 5 ton
Use this BTU/ton size chart to size your mini split indoor or outdoor unit.
What Nobody Tells You Before You Buy▾
If you are looking for mini splits, most sellers cover the basics: an outdoor compressor connected to indoor units via small refrigerant lines, high energy efficiency without duct loss, and separate room temperatures — plus the simple setup needing just a small 3-inch wall opening. All true, but there are critical technical details and long-term ownership realities almost nobody tells you before you buy.
Beyond washing your mesh air filters every few weeks, mini splits need a deep chemical cleaning of the internal blower wheel and evaporator coil every 1–2 years. Because the heads recirculate the air in your living space, neglected moisture can breed toxic black mold inside the barrel fan. And while most guides cover summer condensation draining from the indoor head, heat pumps reverse in winter: during freezing weather the outdoor unit sheds gallons of water in defrost cycles — without a base pan heater or proper drainage that runoff freezes solid, destroying fan blades and icing the compressor base.
Finally, budget for electrical and warranty requirements upfront. A multi-zone system frequently requires upgrading your home's main electrical panel — often from 100-amp to 200-amp service — plus dedicated 208/230V double-pole breakers. Most importantly, beware of online DIY claims: almost every major manufacturer explicitly voids your multi-year parts and compressor warranty unless a licensed HVAC technician performs the final nitrogen pressure test, line evacuation, and refrigerant commissioning.
Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.
