MRCOOL Universal 48,000 BTU (4 Ton) Central Heat Pump System - 18 SEER2 (UHP1848AH1848-O)

MRCOOL SKU: UHP1848AH1848-O

Choose your location

enter a US zip code

Price:
Sale price$4,912.00

Description

MRCOOL Universal 48K BTU 4 Ton 18 SEER2 Central Heat Pump Air Conditioner System

When you need serious power to handle your entire home, the MRCOOL Universal Series 48K Heat Pump System delivers commanding 4-ton heating and cooling capacity that won't let you down. This isn't just another HVAC system—it's engineered specifically to conquer the harshest conditions your climate can throw at it. Whether you're enduring bone-chilling winter freezes or relentless summer heat waves, you'll enjoy flawless indoor comfort year-round.

With its robust 17.5 SEER2 efficiency rating, you're looking at substantial energy savings on your utility bills while maintaining that powerful climate control you need. The advanced DC Inverter technology constantly adjusts the compressor output to match your home's exact needs, so you get peak performance whether you're facing arctic cold snaps or extreme heat advisories.

We know installation flexibility matters to you. That's why the 48K air handler works seamlessly in upflow, downflow, and horizontal orientations—perfect for your attic, mechanical room, crawlspace, or basement, even where traditional high-capacity systems won't fit. The streamlined profile won't eat up your valuable space, while the engineered M-shaped evaporator coil maximizes heat exchange across its extensive surface area. If you're working with a contractor, they'll love the NO-VAC Quick Connect line set compatibility that completely eliminates vacuuming and flaring—cutting installation time significantly. And when winter temperatures plummet, you can add optional Universal Series Heat Kits for that extra heating boost and emergency backup when you need it most.

You're making a significant investment in your home's comfort, so we back it with real protection. The comprehensive 10-year parts warranty and 2-year limited labor warranty give you manufacturer-backed assurance and lasting peace of mind. This is the solution that empowers you—whether you're a contractor or homeowner—to install powerful, efficient central climate control that handles your maximum residential comfort demands. Ready to elevate your entire property to 4-ton climate control? MRCOOL Universal Series engineering has you covered.

 

Optimal Applications:

  • HVAC professionals serving large-scale residential installations - Industrial-strength 4-ton system engineered for maximum whole-home projects with comprehensive manufacturer warranty support.
  • Homeowners with expansive properties demanding peak capacity - Full-power ducted system manages complete home heating and cooling requirements with superior efficiency and dependability.
  • Large estates with multiple zones and open-concept designs - 4-ton capacity delivers sufficient climate control for extensive floor plans, cathedral ceilings, and maximum occupancy scenarios.
  • Extreme climate zones requiring uncompromising performance - Optional heat kit compatibility provides critical emergency backup and amplified heating power during brutal winter conditions.

 

Why MRCOOL Universal 48K Heat Pump System Delivers Superior Results

  • Peak Capacity With Installation Efficiency - 17.5 SEER2 rating at commanding 4-ton output paired with NO-VAC technology ensures streamlined installation despite maximum power delivery.
  • Proven Multi-Orientation Versatility - Upflow, downflow, and horizontal compatibility removes mechanical space obstacles across large-scale property configurations and installations.
  • Relentless Extreme Weather Performance - DC Inverter technology maintains unwavering operation through severe winter storms and intense summer heat at maximum capacity levels.
  • Enhanced Cold-Climate Capability - Optional auxiliary heat kit integration delivers amplified heating output when outdoor temperatures plummet to dangerous levels.
  • Extended Protection Assurance - 10-year parts warranty and 2-year labor coverage reflect manufacturer confidence in 4-ton system durability and long-term performance.

 

Professional Certifications & Protection

  • Energy Star Qualified - Surpasses EPA efficiency standards for residential central heating and cooling at maximum 4-ton capacity
  • 17.5 SEER2 Efficiency Rating - Strong energy performance for substantial utility savings and rebate eligibility in large residential applications
  • DC Inverter Technology Verified - Advanced variable-output technology guarantees reliable operation across all climate conditions at peak capacity
  • NO-VAC Quick Connect Approved - Eliminates vacuuming and flaring steps for faster, more efficient professional installation processes
  • Multi-Position Installation Verified - Certified for upflow, downflow, and horizontal mounting across diverse mechanical space configurations
  • Heat Kit Compatible - Supports optional Universal Series Heat Kits for amplified cold-weather performance and emergency heating reserves
  • 10-Year Parts Limited Warranty - Comprehensive coverage on 4-ton system components guaranteeing extended operational reliability
  • 2-Year Labor Limited Warranty - Professional installation cost protection delivering additional confidence and support
  • Professional/DIY Installation Certified - Suitable for both licensed contractor and skilled homeowner installation with appropriate expertise
  • Online Registration Required - Straightforward registration activates full warranty coverage and complete protection benefits

 

System Integration & Installation Requirements

  • Multi-Position Flexibility: This air handler supports upflow, downflow, and horizontal installations for total adaptability across large residential mechanical spaces and diverse configurations.
  • NO-VAC Installation: Compatible with MRCOOL NO-VAC Quick Connect line sets to eliminate vacuuming and flaring steps, expediting installation on maximum-capacity system deployments.
  • Heat Kit Enhancement: Optional Universal Series Heat Kits available to provide amplified heating capacity and emergency backup during extreme cold-weather events.
  • Professional/DIY: Suitable for both licensed contractor installation and experienced homeowner installation with proper training, tools, and comprehension of 4-ton system demands.
  • Large Property Sizing: 4-ton capacity appropriate for expansive residential properties, multi-level structures, and homes requiring maximum cooling and heating output.

What's Included

Everything you need is included with your MRCOOL 48KCentral Heat Pump System.

  • 1 x MRCOOL Universal 48K Heat Pump (UHP18048-O)
  • 1 x MRCOOL Universal 48K Air Handler (UAH18048-O)
  • Communication and Control Wiring
  • Mounting Hardware and Brackets
  • Installation Guide and Technical Documentation


MRCOOL Universal 48K Heat Pump System Features

  • 48,000 BTU (4 Ton) with 17.5 SEER2 Rating - Maximum-capacity central heat pump providing complete home coverage with strong energy efficiency and peak climate power.
  • DC Inverter Technology - Advanced variable-output compressor platform adjusts to shifting demands, maintaining consistent performance through all weather extremes at 4-ton scale.
  • Multi-Positional Air Handler Construction - Upflow, downflow, and horizontal installation capability accommodates any mechanical space layout across large residential properties.
  • Streamlined Profile Engineering - Space-efficient design installs in restricted areas including attics, utility rooms, and crawlspaces without demanding structural alterations.
  • M-Shaped Evaporator Coil - Extensive surface area boosts airflow efficiency and optimizes heat exchange performance at maximum capacity output.
  • NO-VAC Quick Connect Compatible - Works with MRCOOL NO-VAC line sets to eliminate vacuuming and flaring for expedited professional installation.
  • Optional Heat Kit Support - Accommodates Universal Series Heat Kits for supplementary heating capacity during extreme cold-weather periods.
  • Maximum Home Climate Coverage - 4-ton capacity supplies powerful heating and cooling for expansive residential properties and complex architectural layouts.
  • Severe Weather Engineering - Designed for punishing climates with brutal winters and extreme summer heat, maintaining comfort consistency throughout the year.
  • Contractor-Grade Standards - Built with professional-quality reliability and extended durability for large-scale residential HVAC market requirements.

MRCOOL UHP18048-O Condenser Specs

BRAND NAME MRCOOL
SERIES Universal R-454B
MODEL UHP18048-O
GTIN 840255587907
UPC 840255587907
UNIT TYPE Universal Series Heat Pump
EQUIPMENT TYPE Condenser
SHORT DESCRIPTION Universal Series Heat Pump Inverter Condenser
SEER2 Up to 17.5
EER2 Up to 12
HSPF2-4 9.5
HSPF2-5 7.7
TONNAGE 4
COOLING CAPACITY (BTU) 48000
HEATING CAPACITY (BTU) 48000
VOLTAGE (V) 208/230
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 40
MIN CIRCUIT AMPACITY (A) 38
COLOR Dark Grey
REFRIGERANT TYPE R-454B
REFRIGERANT VOLUME (OZ) 134.04
DECIBEL RATING (DBA) 65
INVERTER DC
MAX LINESET LENGTH (FT) 246
LIQUID LINE SIZE 3/8
SUCTION LINE SIZE 3/4
COMPRESSOR MOTOR TYPE Rotary
CONDENSER FAN MOTOR RPM 850/800/750/650
METERING DEVICE EXV
UL LISTED Yes
CSA LISTED Yes
ETL LISTED Yes
BASE WARRANTY 10 Years
BASE PARTS WARRANTY 10 Years
BASE COMPRESSOR WARRANTY 2 Years
CONTAINS ELECTRONICS Yes
CONTAINS CHEMICALS Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 16.34
NET HEIGHT (IN) 38.39
NET WIDTH (IN) 38.58
NET WEIGHT (LBS) 204.15
GROSS DEPTH (IN) 19.68
GROSS HEIGHT (IN) 42.52
GROSS WIDTH (IN) 45.08
GROSS WEIGHT (LBS) 232.59

MRCOOL UAH18048-O Air Handler Specs

BRAND NAME MRCOOL
SERIES Universal R-454B
MODEL UAH18048-O
GTIN 840255587853
UPC 840255587853
UNIT TYPE Universal Series Air Handler
EQUIPMENT TYPE Air Handler
SHORT DESCRIPTION Universal Series 48,000 BTU Air Handler
CFM 1601/1442.1/1265.5/1088.9/N\A
TONNAGE 3
VOLTAGE (V) 115/208/230
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 15
MIN CIRCUIT AMPACITY (A) 14.5/10
MOUNT TYPE Multi-Position
COLOR Dark Grey
DECIBEL RATING (DBA) N\A/53/49.5/33.5/N\A
DECIBEL RATING (DBA) 33.5 (Low)-53(High)
NUMBER OF SPEEDS 4
MAX LINESET LENGTH (FT) 246
LIQUID LINE SIZE 3/8
SUCTION LINE SIZE 3/4
FILTER TYPE Replaceable
FILTER SIZE 20 x 20 x 1
REFRIGERANT TYPE R-454B
METERING DEVICE EXV
AUXILIARY HEATER INCLUDED No
AUXILIARY HEATER AVAILABLE Yes
AUXILIARY HEATER SIZES 5 KW / 8 KW / 10 KW / 15 KW / 20 KW
UL LISTED Yes
CSA LISTED Yes
ETL LISTED Yes
BASE WARRANTY 10 Year Parts
BASE PARTS WARRANTY 10 Years
BASE COMPRESSOR WARRANTY 2 Years
CONTAINS ELECTRONICS Yes
CONTAINS CHEMICALS Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 21.5
NET HEIGHT (IN) 55.94
NET WIDTH (IN) 21.5
NET WEIGHT (LBS) 186.51
GROSS DEPTH (IN) 31.1
GROSS HEIGHT (IN) 20.47
GROSS WIDTH (IN) 59.84
GROSS WEIGHT (LBS) 232.14

Understanding your MRCOOL warranty coverage ensures long-term system performance and protection. All warranties are non-transferable and valid only at the original installation address.

Warranty Coverage by Series

DIY Series 5th Generation Mini-Splits

Models: DIY-09-HP through DIY-36-HP, DIYCASSETTE, DIY-MULTI series

  • Parts: 5 years from proof of purchase
  • Compressor: 7 years from proof of purchase
  • Remote Control: Included in parts warranty
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)
  • Installation: Professional installer NOT required when using MRCOOL Quick Connect Pre-Charged Line Set

Advantage Series Mini-Splits

Models: A-09-HP through A-36-HP series

  • Parts: 1 year from proof of purchase
  • Compressor: 2 years from proof of purchase
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)

    Must register within 180 days of purchase
    Covers compressor failure only with one-time condenser replacement
    Requires ongoing Care Kit Program maintenance
Easy Pro Series Mini-Splits

Models: EZPRO-09-HP through EZPRO-24-HP series

  • Parts: 1 year from proof of purchase
  • Compressor: 2 years from proof of purchase
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)

Central Ducted Systems

Models: CENTRAL-18-HP through CENTRAL-60-HP, MVP Series

  • Parts: 10 years from installation date
  • Compressor: 10 years from installation date
  • Labor: 10 years (installer responsible for first 90 days)
  • Installation: Professional installer NOT required when using MRCOOL Quick Connect Pre-Charged Line Set

Universal Series Split Systems

Models: UHP series, UAH series Air Handlers

  • Parts: 10 years from proof of purchase
  • Compressor: 10 years from proof of purchase
  • Labor: 2 years limited (begins 91 days after purchase, covers diagnostic and repair costs)
  • Installation: Professional installer required

Inverter Package Series

Models: GCSHPM series, GCSCAM series

  • Parts: 10 years from installation date
  • Labor: 5 years limited (manufacturing defects only, begins 91 days after installation)
  • Installation: Professional installation required

Olympus Series Mini-Splits

Models: MDUO, MDUCO, MDUI series

Owner-Occupied Residences:

  • Parts: 5 years standard, 10 years with registration within 60 days
  • Compressor: 5 years standard, 10 years with registration within 60 days

Commercial Applications:

  • Parts & Compressor: 5 years with registration within 60 days
  • Installation: Professional installer required

Key Warranty Conditions

Product Registration:

  • Register at mrcool.com/warranty to activate extended coverage (where applicable)
  • Registration deadlines vary by series (30-180 days from purchase)

Installation Requirements:

  • Must comply with all federal, state, and local electrical codes
  • Must follow MRCOOL installation instructions
  • Must use new, compatible, MRCOOL-approved components
  • Warranty voids if installed with used or incompatible parts

Warranty Does NOT Cover:

  • Labor, diagnostic, shipping, or installation costs (except where labor warranty applies)
  • Normal maintenance (filter cleaning, lubrication, coil cleaning)
  • Refrigerant costs or energy consumption
  • Damage from improper installation, natural disasters, or electrical issues
  • Units moved from original installation address
  • Units installed outside USA and Canada

How to File a Warranty Claim

Contact MRCOOL:

For Labor Claims (Universal/Inverter Package Series within first 2 years):

  • Phone: (844) 518-2040

Required Documentation:

  • Proof of purchase
  • Product registration confirmation (if applicable)
  • Diagnostic testing results (professional HVAC technician may be required)
  • Defective parts must be returned when requested

For complete warranty terms and conditions, visit mrcool.com/warranty

Replacement parts are covered for the remainder of the original warranty period or 30 days, whichever is longer. Some states do not allow exclusion of incidental or consequential damages. This warranty gives you specific legal rights that may vary by state or province.

30-Day Hassle Free Returns Guarantee Icon

Free 30-Day Returns

Confidence Comes Standard: 30-Day Free Returns, Zero Risk - See Full Return Policy Here

MRCOOL Universal 48,000 BTU (4 Ton) Central Heat Pump System - 18 SEER2 (UHP1848AH1848-O) Reviews

Customers Who Viewed this Item Bought

Recently viewed

Trusted by Industry Professionals:

Vallen Promedica Mid States Bolt & Screw Co. Casto Technical Services Gary Poppins Popcorn Fleischmann's Yeast United States House of Representatives LOCKHEED MARTIN Logo zerorez logo the walsh group logo Hampton by Hilton Logo smartbank logo National Gallery of Art logo BASF Logo fairfield inn by marriott logo Taos logo Best Buy Logo Walmart logo Costco Wholesale logo

“From top-notch customer service and clear communication about order status to the quality and reliability of the cleaning equipment—everything exceeded my expectations.”

- Andrew S., Facility Manager, 09/25
All Customer Reviews