How to Pick the Perfect Mini Split Floor Mounted Indoor Unit
If you are installing a mini split system but you don't have enough clearance f...
Local Pickup FAQ's
Hover to zoom
1 Of 5
Mitsubishi - 18k BTU Cooling Only - M-Series Wall Mounted Air Conditioning System - 21.5 SEER2
Model:
MY-GS18NA-U1
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
Features
- Precision Temperature Control Technology
- The outdoor condenser is equipped with inverter technology and an electronic linear expansion valve. These components improve temperature accuracy and system efficiency through precise adjustments of both compressor speed and refrigerant flow.
- Blue Fin Condenser
- Condensers are constantly exposed to wind, dust and salty air that take their toll on your unit. Mitsubishi coats their condensers with an anti-rust coating to extend its lifespan.
- Advanced Filtration System
- The MSY-GS18NA-U1 combines a hybrid catechin nano platinum filter for managing allergens. The anti-allergy filter not only captures the offending particles, it also breaks them down, cleaning the air as it is conditioned.
- Smart Set
- Mitsubishi's Smart Set function allows you to save a cooling profile consisting of a temperature, a fan speed, and an airflow direction. This profile can be activated easily with a single press of the Smart Set button on the remote controller.
- Econo Cool Mode
- By slowly adjusting the cooling set point and swinging the horizontal vanes, the MSY-GS18NA-U1 can improve the efficiency of cooling operations without compromising the comfort provided.
- Dehumidification
- When the indoor unit is run in dry mode, the coil's temperature stays just below the dew point of the return air, removing unwanted moisture. This improves comfort and reduces the chance of mold growth and other property damage in the conditioned space.
- Multiple Vane Control Options
- Auto mode selects the best vane position based on operating mode, and the swing modes cycle through all positions for maximum coverage. When wide mode is activated, fan speed increases beyond the current setting.
- Kumo Cloud Compatible
- Control every zone in your home from the palm of your hand. The Kumo Cloud App allows easy access and control with any smartphone or internet browser.
- (1) Mitsubishi - 18k BTU - GS-Series Cooling Only Outdoor Condenser - Single Zone Only (MUY-GS18NA-U1)
- (1) Mitsubishi GS-Series Cooling Only 18k BTU Wall Mounted Unit - For Single Zone (MSY-GS18NA-U1)
- Line Set - This double insulated tubing transfers refrigerant efficiently between your outdoor condenser and indoor units.
- Drain Tubing - Drain tubing facilitates the reliable and effective removal of condensate from your system. It connects your indoor units to drain locations of your choosing. We recommend locally purchased PVC hard pipe for the condensate drain on cassette and concealed duct units.
- Disconnect Box & Electrical Whip Kit - The Disconnect Box & Whip Kit provides a safe and simple way to connect your outdoor condenser to your fuse box.
- Connecting Wire - This durable, insulated wire provides power to your indoor units from your outdoor condenser.
- Outdoor Condenser Plastic Pad or Wall Bracket - We recommend outdoor condensers should not be placed directly on the ground. An outdoor condenser pad or wall bracket will provide a stable way to mount your condenser free from obstructions and debris.
For over 50 years, Mitsubishi has remained at the forefront of the mini split industry thanks to their dedication to providing efficient, user-friendly comfort solutions. Mitsubishi is committed to achieving total customer satisfaction and year after year they do just that. The MY-GS18NA is backed by a 5 year parts and 7 year compressor warranty to show you they stand by their product. With an included wireless remote controller, this system is the perfect combination of convenience and comfort for any cooling application application.
Product Includes
Product Note
This product requires the following accessories for installation:
Specifications
Product Includes
- (1) Mitsubishi - 18k BTU - GS-Series Cooling Only Outdoor Condenser - Single Zone Only (MUY-GS18NA-U1)
- (1) Mitsubishi GS-Series Cooling Only 18k BTU Wall Mounted Unit - For Single Zone (MSY-GS18NA-U1)
MY-GS18NA-U1
General Information
Type
Wall Mounted
Product Line
M-Series
Product Category
Mini Split Cooling Only System
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Cooling Only
Number of Zones
Number of Zones
A zone is a room or area within a building that has its own temperature control.
1
Refrigerant Type
R-410A
Indoor Unit Size(s)
Indoor Unit Size(s)
Mini split systems can have one or more indoor units connected to a single outdoor unit. Indoor Unit Size(s) specifies what indoor unit sizes are used in a system. We have combined 6k and 7k indoor units to enhance searchability.
18
Outdoor Unit Size
18000 BTU
DOE Regional Compliance
DOE Regional Compliance
In 2015, the US Department of Energy broke the country into three regions - North, Southeast, and Southwest - and set legal standards for energy efficiency within each region. Learn More
Nationwide
Line Set Size
1/4" x 1/2"
Performance
Cooling BTU
18000
Cooling Capacity
22000 BTU
Moisture Removal
3.8 Pints/Hour
Cooling Power Input
2150 Watts
Low Ambient Heating
Yes
Minimum Outdoor Temperature for Heating
Minimum Outdoor Temperature for Heating
This is the lowest rated outdoor temperature for heating operation. Because heat pumps rely on heat available in outdoor air, the amount of heat they are able to supply decreases with outdoor temperatures. Learn More
-4 F
Minimum Outdoor Temperature for Cooling
14 F
SEER2
SEER2
The U.S Department of Energy has raised the minimum rating requirements starting in 2023 that include updated testing conditions and metrics to better reflect real-world conditions. SEER2 (Seasonal Energy Efficiency Ratio) is a measurement of cooling efficiency over a typical cooling season. It is useful for comparing energy efficiency of cooling systems. The higher the SEER2, the more energy efficient the system.
21.5
EER2
EER2
The U.S Department of Energy has raised the minimum rating requirements starting in 2023 that include updated testing conditions and metrics to better reflect real-world conditions. EER2 (Energy Efficiency Ratio) is a measurement of cooling efficiency under fixed conditions. It is useful for comparing units that will operate consistently under one set of conditions (e.g. server room). The higher the EER2, the more efficient the system.
13.45
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Recommended Breaker Size
15 Amps
Dimensions
Product Weight
147 Pounds
Shipping Weight
169 Pounds
Certifications
Energy Star Listed
Yes
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
207679240
MUY-GS18NA-U1
General Information
Type
Outdoor Condenser
Product Line
GS-Series
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Cooling Only
Maximum Number of Zones
1
Multi-Zone Compatible
No
Refrigerant Type
R-410A
Installation Location
Outdoor
Performance
Cooling BTU
18000
Low Ambient Heating
Yes
Minimum Outdoor Temperature for Heating
Minimum Outdoor Temperature for Heating
This is the lowest rated outdoor temperature for heating operation. Because heat pumps rely on heat available in outdoor air, the amount of heat they are able to supply decreases with outdoor temperatures. Learn More
-4 F
Minimum Outdoor Temperature for Cooling
14 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Maximum Line Length
65 Feet
Gas Connection Size
1/2 Inch
Liquid Connection Size
1/4 Inch
Product Height
12 Inches
Product Width
36 5/16 Inches
Product Depth
9 13/16 Inches
Product Weight
28 Pounds
Shipping Weight
32 Pounds
Certifications
ETL Listed
Yes
AHRI Certified
Yes
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Compressor Warranty
7 Years
MSY-GS18NA-U1
General Information
Type
Wall Mounted
Product Line
GS-Series
Multi-Zone Compatible
No
Refrigerant Type
R-410A
Remote Control
Wireless
Indoor Unit Size(s)
Indoor Unit Size(s)
Mini split systems can have one or more indoor units connected to a single outdoor unit. Indoor Unit Size(s) specifies what indoor unit sizes are used in a system. We have combined 6k and 7k indoor units to enhance searchability.
18
Installation Location
Indoor
Performance
Cooling BTU
18000
Cooling Capacity
18000 BTU
Moisture Removal
3.8 Pints/Hour
Maximum Air Flow
629 CFM
Minimum Air Flow
250 CFM
Minimum Sound Level
29 dB
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
49 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
1/2 Inch
Liquid Connection Size
1/4 Inch
Product Height
12 Inches
Product Width
36 5/16 Inches
Product Depth
9 13/16 Inches
Product Weight
28 Pounds
Shipping Weight
32 Pounds
Certifications
ETL Listed
Yes
AHRI Certified
Yes
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Reviews
Mitsubishi MY-GS18NA-U1 Reviews & Ratings
Be the First to Write a Review
Do you own this product?
Please share your insights with fellow shoppers.
Please share your insights with fellow shoppers.
Product Q&A
Be the First to Ask A Question
Answered by Ken, the eComfort Product Expert
How-To Articles
eComfort Boosts Comfort and Energy Savings at Historic Home
Owning a historic home can be very rewarding. But those rewards come with respo...
How to Pick the Perfect Mitsubishi Mini-Split Condenser
If you're struggling to keep your home or office comfortable, you are not alone...
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Mitsubishi - 18k BTU Cooling Only - M-Series Wall Mounted Air Conditioning System - 21.5 SEER2
Customer Review Images
