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Home > Air Conditioners > Mini Split Air Conditioners > MITHH12KSINGLE
Mitsubishi Electric MITHH12KSINGLE - 12,000 BTU Single Zone Mini Split System
Mitsubishi Electric MITHH12KSINGLE - 12,000 BTU Single Zone Mini Split System
Mitsubishi Electric MITHH12KSINGLE - 12,000 BTU Single Zone Wall Mounted Outdoor Unit
Mitsubishi Electric MITHH12KSINGLE - 12,000 BTU Single Wall Mounted Indoor Unit
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Mitsubishi Electric MITHH12KSINGLE
Authorized
Dealer

Mitsubishi Electric
MITHH12KSINGLE
12,000 BTU Single Zone Mini Split System with Hyper Heat Pump, Inverter Compressor, H2i Plus, Blue Fin Anti-Corrosion, 6 Fan Speed, R454B Refrigerant and Price Includes Delivery / Installation and All Parts

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Limited quantity available
Price Includes Delivery & Installation
included items
12,000 BTU Single Zone Wall Mounted Outdoor Unit (MUZFX12NLHZ)
• Heat Pump, Blue Fin Coating, H2i sumo™ Hyper-Heating Inverter
12,000 BTU Single Wall Mounted Indoor Unit (MSZFX12NL)
• Heat Pump, 3D I-See Sensor, Dual Barrier Coating
$5,750.00
OR
In stock
In Stock Items labeled IN STOCK will ship within 2 business days from our East Coast warehouse. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items are IN STOCK, the order will ship when all items are available unless you select the SPLIT SHIP option in checkout. IN STOCK may not apply to multiple quantities of the same product.
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Product Information
Brand: Mitsubishi Electric
Model: MUZFX12NLHZ
Dimensions & Weights
Width: 39 9/32 Inch
Depth: 9 3/4 Inch
Height: 12 Inch
Net Weight: 31.4 Lbs.
Shipping Weight: 36.4 Lbs.
Capacity
BTU Class: 12,000 BTU
Heating Capacity: 13,200 BTU
Cooling Capacity: 12,000 BTU
Min Connectable Capacity: 2,500 BTU
Max Connectable Capacity: 16,100 BTU
General
AC System Type: Mini Split
Component Type: Outdoor Unit
Operation: Cooling with Heat Pump
Min No. of Connectible Indoor Units: 1
Electrical Data
Power Source V / Hz / Ø: (208/230/60/1)
Minimum Ampacity (Amps): 1 Amps
Max. TD Fuse/Breaker: 15 Amps
Power Input Cooling - Rated (Watts): 780 Watts
Power Input Cooling - Max. (Watts): 1,660 Watts
Power Input Heating - Rated (Watts): 920 Watts
Power Input Heating - Max. (Watts): 2,140 Watts
Rated Amps: 14 Amps
Performance
Energy Star Certified: Yes
Piping Connections
Power and Communication Cable - AWG: 14
Liquid Line Outer Diameter: 1/4 Inch
Suction Line Outer Diameter: 3/8 Inch
Drain Line Outer Diameter: 5/8 Inch
Refrigeration System
Refrigerant Type: R-454B
Compressor Type: Twin Rotary
Refrigerant Charge: 2.75 Ft.
Piping Length (No Additional Refrigerant): 25 Ft.
Max. Line Length - Each: 65 Ft.
Max. Line Length - Total: 65 Ft.
Max. Height Diff. btwn. Indoor and Outdoor Units: 40 Ft.
Outside Temperature Range for Cooling - Min.: 14 °F
Outside Temperature Range for Cooling - Max.: 115 °F
Outside Temperature Range for Heating - Min.: -22 °F
Outside Temperature Range for Heating - Max.: 75 °F
Features
Inverter (Variable speed compressor): Yes
Low Ambient Operating Threshold (F°): -22
Corrosion Protection: Yes
No. of Fan Speeds: 5
WiFi Connected: Yes
Technical Details
Voltage: 230/208 Volts
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Description

12,000 BTU Single Zone Wall Mounted Outdoor Unit
The Mitsubishi MSZ‑FX12NL & MUZ‑FX12NLHZ deliver efficient 12,000 BTU heating and cooling for rooms up to 500 sq ft. Featuring Hyper‑Heat technology, built-in Wi-Fi, and quiet operation, this compact ductless system ensures reliable, year-round comfort with smart control.

Specifications

Cooling at 95F1
Maximum Capacity Btu/h:  
16,100
Rated Capacity Btu/h:  
12,000
Minimum Capacity Btu/h:  
2,500
Maximum Power Input W:  
1,660
Rated Power Input W:  
780
Moisture Removal Pints/h:  
1.3
Sensible Heat Factor -:  
0.88
Power Factor [208V / 230V] %:  
94 / 94
Heating at 47F2
Maximum Capacity Btu/h:  
23,500
Rated Capacity Btu/h:  
13,200
Minimum Capacity Btu/h:  
3,100
Maximum Power Input W:  
2,140
Rated Power Input W:  
920
Power Factor [208V / 230V] %:  
96 / 95
Heating at 17F3
Maximum Capacity Btu/h:  
18,200
Rated Capacity Btu/h:  
9,300
Maximum Power Input W:  
2,140
Rated Power Input W:  
800
Heating at 5F4 Maximum Capacity Btu/h:  
16,200
Maximum Power Input W:  
2,140
Heating at -5F6 Maximum Capacity Btu/h:  
14,500
Heating at -10F7 Maximum Capacity Btu/h:  
13,200
Heating at -22F9 Maximum Capacity Btu/h:  
8,700
Efficiency
SEER2:  
29.9
EER21:  
15.4
HSPF2 [IV]:  
12.4
COP at 47°F2:  
4.2
COP at 17°F at Maximum Capacity3:  
2.48
COP at 5°F at Maximum Capacity4:  
2.2
COP at -5°F at Maximum Capacity6:  
2.04
COP at -10°F at Maximum Capacity7:  
2
ENERGY STAR® Certified:  
Yes
Electrical
Voltage, Phase, Frequency V AC / V AC, , Hz:  
208 / 230, 1, 60
Guaranteed Voltage Range V AC:  
187 - 253
Voltage: Indoor - Outdoor, S1-S2 V AC:  
208/230
Voltage: Indoor - Outdoor, S2-S3 V DC:  
24
Short-circuit Current Rating [SCCR] kA:  
5
Recommended Fuse/Breaker Size (Outdoor) A:  
15
Recommended Wire Size [Indoor - Outdoor] AWG:  
14
Outdoor Unit
MCA A:  
14
MOCP A:  
24
Fan Motor Output W:  
55
Airflow Rate Cooling CFM:  
1,815
Airflow Rate Heating CFM:  
1,321
Coating on Heat Exchanger (Bluefin, Sea Coast):  
Yes, No
Sound Pressure Level, Cooling1 dB (A):  
49
Sound Pressure Level, Heating2 dB (A):  
51
Compressor Type:  
Twin Rotary
Compressor Model:  
SRB140FQHMT
Compressor Oil [Type // Charge] Type // oz RM68EH //:  
11.80
External Finish Color Munsell 3Y:  
7.8/1.1
Base Pan Heater:  
Built-in
Unit Dimensions (W x D x H):  
31-1/2 x 11-1/4 x 28-1/8
Package Dimensions (W x D x H):  
37 x 15 x 35
Unit Weight lbs:  
89
Package Weight lbs:  
103.50
ODU Operating Temp. Range
Cooling Intake Maximum Air Temp [Maximum / Minimum*] °FDB:  
115 / 14
Heating Air Temp [Maximum / Minimum] °FDB, °FWB / °FDB,:  
°FWB 75, 65 / -22, -23.8
Heating Thermal Lock-out / Re-start Temperatures** °FDB:  
-34 / -23
Refrigerant
Type:  
R454B
Pre-Charged Refrigerant Amount lbs, oz:  
2, 12
Maximum Pre-Charged Piping Length ft [m]:  
25 [7.50]
Additional Refrigerant Charge Per Additional Piping Length oz/ft:  
0.22
Piping
Gas Pipe Size O.D. [Flared] inch [mm]:  
3/8 [9.52]
Liquid Pipe Size O.D. [Flared] inch [mm]:  
1/4 [6.35]
Maximum Piping Length ft [m]:  
65 [20]
Maximum Height Difference ft [m]:  
40 [12]
Maximum Number of Bends:  
10

Features

Blue Fin Coating
  • An anti-corrosion treatment applied to the aluminum fins of the heat exchanger of the outdoor unit to protect against corrosion caused
  • by salt, sulfur, and other airborne contaminants, especially in coastal and industrial areas.
H2i sumo™ Hyper-Heating INVERTER
  • 100% heating capacity at outdoor temperatures -10° F with guaranteed operation down to -22° F.
Hot-start technology
  • The fan only blows air when the heat exchanger has warmed, preventing blasts of cold air at start-up.
California residents see Prop 65 WARNINGS

Reviews

Manuals & Guides

Submittal Sheet
Installation Guide
Owner Guide
Product Information
Brand: Mitsubishi Electric
Model: MSZFX12NL
Dimensions & Weights
Width: 39 9/32 Inch
Depth: 9 3/4 Inch
Height: 12 Inch
Net Weight: 36.4 Lbs.
Shipping Weight: 31.4 Lbs.
Capacity
BTU Class: 12,000 BTU
Heating Capacity: 12,000 BTU
Cooling Capacity: 12,000 BTU
General
AC System Type: Mini Split
Component Type: Indoor Unit
Operation: Cooling with Heat Pump
Placement Type: Wall Mount
Wireless Remote Control(s) Included: Included
Wired Remote Control(s) Included: Optional
Thermostat Range - Cooling (F°): 67°F - 90°F DB
Thermostat Range - Heating (F°): 70°F - 80°F DB
Electrical Data
Power Source V / Hz / Ø: (208/230/60/1)
Rated Amps: 1 Amps
Performance
Motor: Brushless Direct Current
Motor Drive: Direct
Energy Star Certified: Yes
Moisture Removal (Pts/hr): 1.3 Pts./Hr.
Airflow Rate Quiet (CFM): 198 CFM
Airflow Rate Low (CFM): 247 CFM
Airflow Rate Medium (CFM): 311 CFM
Airflow Rate High (CFM): 526 CFM
Operating Sound Level - Quiet (dB): 20 dB
Operating Sound Level - Low (dB): 24 dB
Operating Sound Level - Medium (dB): 29 dB
Operating Sound Level - High (dB): 44 dB
Piping Connections
Power and Communication Cable - No.: 4
Power and Communication Cable - AWG: 14
Liquid Line Outer Diameter: 1/4 Inch
Suction Line Outer Diameter: 3/8 Inch
Drain Line Outer Diameter: 5/8 Inch
Refrigeration System
Refrigerant Type: R-454B
Refrigerant Connection Type: Flare
Piping Length (No Additional Refrigerant): 25 Ft.
Max. Line Length - Total: 65 Ft.
Features
Human Detection Technology: Yes
Hot Start Heating System (Heat Pumps Only): Yes
Defrost/Deicing: Yes
Air Filter: Yes
Filters Anti-microbial?: Yes
Sleep Mode: Yes
Quiet/Sleep Mode: Yes
Built-in Drain Pump (Indoor Unit): No
Surge Cool/Heat: Yes
Auto Operation: Yes
Auto-changeover: Yes
Automatic Louver Adjustment: Yes
Dehumidifying Mode: Yes
No. of Fan Speeds: 5
WiFi Connected: Yes
Technical Details
ADA Compliant: No
Voltage: 230/208 Volts
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Description

12,000 BTU Single Wall Mounted Indoor Unit
The Mitsubishi MSZ‑FX12NL & MUZ‑FX12NLHZ deliver efficient 12,000 BTU heating and cooling for rooms up to 500 sq ft. Featuring Hyper‑Heat technology, built-in Wi-Fi, and quiet operation, this compact ductless system ensures reliable, year-round comfort with smart control.

Specifications

Overview
Maximum Capacity Btu/h:  
16,100
Rated Capacity Btu/h:  
12,000
Minimum Capacity Btu/h:  
2,500
Maximum Power Input W:  
1,660
Rated Power Input W:  
780
Moisture Removal Pints/h:  
1.3
Sensible Heat Factor -:  
0.88
Power Factor [208V / 230V] %:  
94 / 94
Heating at 47F
Maximum Capacity Btu/h:  
23,500
Rated Capacity Btu/h:  
13,200
Minimum Capacity Btu/h:  
3,100
Maximum Power Input W:  
2,140
Rated Power Input W:  
920
Power Factor [208V / 230V] %:  
96 / 95
Heating at 17F
Maximum Capacity Btu/h:  
18,200
Rated Capacity Btu/h:  
9,300
Maximum Power Input W:  
2,140
Rated Power Input W:  
800
Heating at 5F4 Maximum Capacity Btu/h:  
16,200
Maximum Power Input W:  
2,140
Heating at -5F6 Maximum Capacity Btu/h:  
14,500
Heating at -10F7 Maximum Capacity Btu/h:  
13,200
Heating at -22F9 Maximum Capacity Btu/h:  
8,700
Efficiency
SEER2:  
29.9
EER21:  
15.4
HSPF2 [IV]:  
12.4
COP at 47°F2:  
4.2
COP at 17°F at Maximum Capacity3:  
2.48
COP at 5°F at Maximum Capacity4:  
2.2
COP at -5°F at Maximum Capacity6:  
2.04
COP at -10°F at Maximum Capacity7:  
2
ENERGY STAR® Certified:  
Yes
Electrical
Voltage, Phase, Frequency V AC / V AC, , Hz:  
208 / 230, 1, 60
Guaranteed Voltage Range V AC:  
187 - 253
Voltage: Indoor - Outdoor, S1-S2 V AC:  
208/230
Voltage: Indoor - Outdoor, S2-S3 V DC:  
24
Short-circuit Current Rating [SCCR] kA:  
5
Recommended Fuse/Breaker Size (Outdoor) A:  
15
Recommended Wire Size [Indoor - Outdoor] AWG:  
14
Indoor Unit
MCA A:  
1
Fan Motor Output W:  
40
Airflow Rate at Cooling, Dry CFM:  
198, 247, 311, 406, 526
Airflow Rate at Cooling, Wet CFM:  
168, 210, 264, 345, 447
Airflow Rate at Heating, Dry CFM:  
177, 247, 311, 406, 477
Sound Pressure Level [Cooling] dB (A):  
20, 24, 29, 36, 44
Sound Pressure Level [Heating] dB (A):  
21, 24, 29, 36, 42
Dual Barrier Coating on Heat Exchanger:  
Yes
External Finish Color Munsell:  
1.0Y 9.2/0.2
Unit Dimensions (W x D x H):  
39 -9/32 x 9-3/4 x 12
Package Dimensions (W x D x H):  
43 -5/16 x 12-3/4 x 15-3/4
Unit Weight lbs:  
31.40
Package Weight lbs:  
36.40
Fan Motor Type:  
DC Motor
IDU Operating Temp. Range Cooling Intake Air Temp [Maximum / Minimum] °FDB, °FWB / °FDB,:  
°FWB 90, 73 / 67, 57
Heating Intake Air Temp [Maximum / Minimum] °FDB:  
80 / 70
Pre-Charged Refrigerant Amount lbs, oz:  
2, 12
Maximum Pre-Charged Piping Length ft [m]:  
25 [7.50]
Additional Refrigerant Charge Per Additional Piping Length oz/ft:  
0.22
Piping
Gas Pipe Size O.D. [Flared] inch [mm]:  
3/8 [9.52]
Liquid Pipe Size O.D. [Flared] inch [mm]:  
1/4 [6.35]
Maximum Piping Length ft [m]:  
65 [20]
Maximum Height Difference ft [m]:  
40 [12]
Maximum Number of Bends:  
10

Features

3D i-see Sensor® (Built-in)
  • The advanced sensor scans each room to produce a complete thermal profile that includes heat signatures based upon size, temperature and movement, then adjusts temperature and airflow based on user preference, and saves energy according to room occupancy.
Dual Barrier Coating
  • The patented Dual Barrier Coating reduces the collection of contaminants like dust, fibers, smoke, and oil on the inner surface of the heat pump, resulting in optimal airflow and easier maintenance.
Dual Barrier Fusion
  • The patented Dual Barrier Fusion reduces the collection of contaminants like dust, fibers, smoke, and oil on the vanes of the indoor unit, keeping it clean all year long. Dual Barrier Fusion’s shielding power is fused directly into the material of the h
Dual Vane
  • Dual-Vane feature allows for airflow direction to be set independently using two vanes, which can then deliver airflow across wide areas of a room, levels of a zone, or to two people in different locations at the same time.
Econo Cool
  • Econo Cool temporarily and automatically adjusts the airflow based on heat exchanger temperature. The set temperature is increased slightly, which saves energy, while maintaining comfort.
Multiple control options including
  • Back-lit screen hand-held Remote Controller (provided with unit), comfort app, third-party interfaces and both wired and wireless controllers
Multiple fan speed options
  • Low, Medium, High, Powerful, Auto
Powerful Mode
  • Temporarily drops or raises the set point and fan speed in order to quickly bring the room to the desired temperature.
Quiet operation
  • Outdoor units are as quiet as a typical conversation, and most indoor units are whisper quiet.
Slim Design
  • Slim wall-mounted indoor units provide zone comfort control
Smart Dry +
  • The Smart Dry+ mode intelligently provides precise humidity control with minimal over-cooling of the space.
Triple Action Filtration
  • Standard Microparticle and Electrostatic Enzyme Filters, along with an optional Carbon-based Deodorizing Filter. It effectively removes non-living particulate matter like dust and smoke, utilizes nanotechnology to absorb and neutralize odors, and employs
Wi-Fi
  • Enabled units pair with the Comfort app for complete control over temperature, fan speeds, modes, schedules, and more
California residents see Prop 65 WARNINGS

Reviews

Manuals & Guides

Submittal Sheet
Installation Guide
In Stock
Items labeled In Stock will ship within 2 business days from our East Coast warehouse. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items qualify for In Stock, the order will ship when all items are available to ship. In Stock may not apply to multiple quantities of the same product.
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