Universal Series Up to 20 SEER DC Inverter Unitary
The MRCOOL Universal Unitary Heat Pump system is an easy-to-install, full-size air handler with a slim condenser, suitable for most 2-3 ton applications. This system is incredibly flexible, combining the ultimate in ducted comfort and easy DIY installation. The 3-ton condenser can be field converted to a 2 ton with a different dip switch setting. The quick-connect fittings on the condenser and air handler allow for easy DIY installation processes with MRCOOL's pre-charged lines, available as an accessory up to 50 feet in length. Using the same inverter technology used by the MRCOOL mini-splits, the system can run at different speeds to optimize comfort and efficiency.
MRCOOL 2-3 Ton Universal Condenser
What is a DC Inverter HVAC System? A DC Inverter design controls compressor motor speed while simultaneously regulating temperature. It eliminates extreme fluctuations in the operating load while extending component life. Inverter air conditioners are quiet, with lower operating costs and fewer breakdowns. They also deliver increased efficiency in comparison to previous generation technology.

- 2 Ton 19 SEER ; 3 Ton 18 SEER
- 3 Ton Condenser Can Be Field Converted to 2 Ton using a Dip Switch Setting (see manual for details)
- Rapid Cooling and Heating
- Maximum Savings
- 80% BTU Output at -4°F
- Quiet 60dB(a) Operation
- Compatible with any third party air handler and thermostat including WiFi/Nest
- Gas Furnace Not Required
- Slim Design
- 3 Connection Types: Pre-Charged NO-Vac® Quick Connect® Line Set (15ft, 25ft, 35ft, 50ft-Couplings also available), Sweat Braze Connection, Flare Connection
MRCOOL 2-3 Ton Universal Air Handler
The Universal indoor air handler’s modern and flexible design provides the versatility for installation in a variety of places and in multiple positions. This system adopts 24V non-communication control technology between condenser and evaporator. Because of this feature, the system can be adapted to any third-party 24V air handler or thermostat other than the included air handler. This allows for flexibility in choices and makes the indoor unit easy to replace if ever required.
As an additional accessory, this system can accommodate an auxiliary heat strip. The MRCOOL DC Inverter System takes a new approach to heating and cooling by offering an ultra-wide operating temperature range. This heating and cooling system adopts two-stage enhanced enthalpy technology to ensure strong heating capacity even at extremely low temperatures. This maintains stable system operation and heating performance at extreme temperatures.

- R410A Factory Pre-Charged Air Handler Can Be Field Converted from 3 Ton to 2 Ton using a Dip Switch Setting (see manual for details)
- Multi-Position Installation (Upflow, Horizontal)
- Easy to Clean Metal Filter Protects Against Fire, Corrosion, and Deterioration
- 2 Step Condensation Protection
- 10 Year Limited Warranty On Parts and Labor - *Registration is Required to Receive Up to $450 to Cover Labor Repair Costs Within 10 Years From Date of Purchase
- Internal Fan Blade Creates Low Noise
- The Special Fire-Proof Electrical Box Design Offers Anti-electric Shock Reserved Installation Space for the Circuit Breaker
- High Efficient Energy Saving DC Fan Motor
No-Vac Quick Connect Factory Charged Line Set
The Universal is designed for quick installation. It is compatible with the MrCool No-Vac Quick Connect Line Set. That means the Universal DC inverter can be installed without being forced to cut, braze, or charge refrigerant lines. This can save an installation technician hours of long hard work. However, those who desire conventional installation can simply use time-tested industry techniques to install the Universal.
The MRCOOL Universal Series comes avaliable with 3 Connection Types: Pre-charged No-Vac Quick Connect Line Set (15ft, 25ft, 35ft, 50ft-Couplings also available), Sweat Braze Fitting and Flare Fitting.
The MRCOOL NO-VAC Quick connect Line Set is intended for use with the MRCOOL Universal Condensers and MRCOOL Universal Air Handlers. When one standard size NO-VAC Quick connect Line Set is not long enough, two standard No-VAC NO-VAC Quick connect Line Sets can be combined using our NO-VAC COUPLER to increase the desired length of the line sets.

Thermostat Compatible
A DC Inverter design controls compressor motor speed while simultaneously regulating temperature. It eliminates extreme fluctuations in the operating load while extending component life. Inverter air conditioners are quiet, with lower operating costs and fewer breakdowns. They also deliver increased efficiency in comparison to previous generation technology. Industry statistics show inverter units are already growing in popularity. The ability to adjust capacity as needed, increase efficiency, reduce energy waste, and deliver reliable comfort will make these systems the heating and air conditioning units of the future.
It is compatible with virtually all third-party thermostats, WiFi devices, and Nest. Plus, its installation profile is flexible enough that it can fit into almost any modern home mechanical design. This allows for flexibility in choices and makes the indoor unit easy to replace if ever required. Plus, should you wish to take advantage of all the benefits that the Universal condenser can provide without replacing your existing air handler, the non-communicating capability ensures that is possible. As an additional accessory, this system can accommodate an auxiliary heat strip.

MRCOOL Universal Series Air Handler Specifications
Indoor Air Handler Sizing | 24,000 BTU | 36,000 BTU |
---|---|---|
Cooling Capacity | 24,000 BTU | 36,000 BTU |
SEER | Up to 20 | up to 18 |
Heating Capacity | 24,000 BTU | 36,000 BTU |
HSPF | 10 | 10 |
Indoor Noise Level | 49 dB(A) | 49 dB(A) |
Power Supply | 208-230v, 60Hz, 1 Phase | 208-230v, 60Hz, 1 Phase |
Minimum Ampacity | 5A | 5A |
Maximum Fuse | 15A | 15A |
Refrigerant (oz) | R-410 | R-410 |
Piping Size (Liquid-side, Gas-side) | Quick Connect, Flare, Weld (with Stub) | Quick Connect, Flare, Weld (with Stub) |
MRCOOL Universal Series Condenser Specifications
Outdoor Condenser Sizing | 24,000 BTU | 36,000 BTU |
---|---|---|
Cooling Capacity | 24,000 BTU | 36,000 BTU |
SEER | Up to 20 | up to 18 |
Heating Capacity | 24,000 BTU | 36,000 BTU |
HSPF | 10 | 10 |
Indoor Noise Level | 60 dB(A) | 60 dB(A) |
Power Supply | 208-230v, 60Hz, 1 Phase | 208-230v, 60Hz, 1 Phase |
Minimum Ampacity | 18A | 24A |
Maximum Fuse | 20A | 35A |
Refrigerant (oz) | R-410 | R-410 |
Piping Size (Liquid-side, Gas-side) | Quick Connect, Flare, Weld (with Stub) | Quick Connect, Flare, Weld (with Stub) |
Note: MRCOOL will not ship to Hawaii (HI). If you are in Hawaii, you will need to contact a freight forwarder.
Brand | MRCOOL |
---|---|
SKU | MDU18024036 |
Lead Time | This product ships in 1-2 business days |
ETL Listed | No |
UL Listed | No |
UPC | 810035931107 |
Hazardous Material | false |
Prop 65 | false |
Warranty | 10 Year Limited Warranty |
Weight (lb.) | 410.0000 |
Height (in.) | |
Width (in.) | |
Length (in.) | |
Air Conditioner Type | Mini-Split |
Installation Type | Quick Connect or DIY |
Air Conditioner BTU's | 36,000 BTU |
Cooling Capacity | 36,000 BTU |
Line Set Included | No |
Built-In Heat Pump | Yes |
Heating Capacity | 36,000 BTU |
SEER Rating | Up to 19 SEER |
Amps | , 1 Phase, 60Hz |
Voltage | 208 Volts, 240 Volts |
Shipping Restrictions | AK, HI |