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MRCOOL® Universal Series 4 Ton 48,000 BTU 17.5 SEER2 Central Heat Pump Inverter Split System - R-454B - Multi-position

SKU: UHP18048-O / UAH18048-O
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MRCOOL® Universal Series 4 Ton 48,000 BTU 17.5 SEER2 Central Heat Pump Inverter Split System - R-454B - Multi-position

Introducing the New & Improved MRCOOL® Universal® Split System

Say hello to the all-new MRCOOL® Universal® Split System—a smarter way to heat and cool your home. With an efficiency rating of 17.5 SEER2, this system helps lower your energy costs without sacrificing performance.

Designed for year-round comfort, it delivers powerful cooling in the summer and reliable heating in the winter—all in one advanced, easy-to-install unit. The upgraded blower and innovative M-Coil work together to provide strong, consistent airflow and enhanced temperature control throughout your home

Why You'll Love It

  • Installer-Friendly: Quick-connect panels and No-Vac® Quick Connect® line set compatibility means faster installs and fewer callbacks
  • Flexible Power: Adaptive Multi-Voltage - 115V OR 208/230V, one product fits multiple job sites.
  • Highly Efficiency: ENERGY STAR Most Efficient 2025, SEER2 up to 17.5 & HSPF2 up to 9.5.
  • Smart Ready: Works seamlessly with the smart thermostat you already own.

Five Sizes, Endless Possibilities

Available in 2, 2.5, 3, 4, and 5 Ton configurations, the Universal® can scale to meet the demands of homes up to 3,000 square feet (2,000 - 2,400 Sq Ft for the 4 Ton Model) - giving you the flexibility to meet the needs of your home or business across a wide range of projects.

Operating Range:

  • Cooling: -22℉ ~ 122℉
  • Heating: -22℉ ~75℉
  • 100% heat output at -13℉
  • Chassis heater and crankcase heater equipped as standard

Warranty:

  • 10 Year Parts + Compressor Warranty
  • 2 Year Labor Warranty
  • See full warranty details here: Warranty Document


What's Included:

 

1x MRCOOL® Universal Series UHP18048-O 4 Ton 48,000 BTU Heat Pump Inverter Condenser - R-454B

MRCOOL® Universal Series UHP18030-O 30,000 BTU Heat Pump Inverter Condenser - R-454B

The MRCOOL® Universal® Series 48K DC Inverter Heat Pump Condenser is built to deliver powerful, year-round comfort, even in the most demanding climate conditions. Whether you're facing extreme summer heat or bitter winter cold, this high-capacity unit maintains reliable airflow and consistent indoor temperatures. With an impressive 17.5 SEER2 efficiency rating, it’s designed to reduce energy consumption while maximizing performance—making it a smart choice for homeowners who want to upgrade without compromise. This condenser is an ideal solution for larger homes or spaces requiring robust heating and cooling. Its compact, space-saving design allows for greater installation flexibility, especially in properties with limited outdoor clearance. The system is also compatible with MRCOOL®’s innovative NO-VAC® Quick Connect® line set (sold separately). This pre-charged, sealed line set eliminates the need for vacuuming and flaring, simplifying installation and dramatically cutting labor time and costs. At the core of the 48K condenser is advanced DC inverter technology. Unlike conventional systems that constantly start and stop, this unit automatically adjusts output to match real-time demand. This not only improves energy efficiency but also ensures quieter operation, more consistent temperatures, and extended system life through reduced wear on components. Whether you’re installing new equipment or replacing an outdated system, the MRCOOL® Universal® Series 48K Condenser delivers reliable performance, intelligent efficiency, and long-term comfort. It’s backed by a 10-year parts warranty and a 2-year limited labor warranty, giving you added confidence and peace of mind.


1x MRCOOL® Universal Series UAH18048-O 4 Ton 48,000 BTU Air Handler - R-454B - Multi-Position

The MRCOOL® Universal® Series 48K Air Handler is a high-efficiency HVAC solution engineered to deliver consistent, year-round comfort while helping homeowners cut down on energy costs. Whether you're upgrading an aging system or installing new equipment, this unit offers the ideal combination of performance, efficiency, and reliability. Designed with installation flexibility in mind, the Universal® 48K supports multiple configurations—including vertical, horizontal, and downflow setups—making it a versatile fit for a wide range of spaces. Its compact design allows for seamless placement in tight or unconventional areas. For added convenience, the unit is compatible with the MRCOOL® NO-VAC® Quick Connect® line set (sold separately), which arrives pre-charged to eliminate the need for vacuuming or flaring—significantly simplifying installation and saving on labor. The system also supports Universal® Series Heat Kits, offering increased heating capability during cold weather and providing peace of mind with emergency backup heat when needed. Inside, the air handler is equipped with an advanced M-shaped evaporator coil that maximizes surface area for heat exchange, enhances airflow, and improves overall system efficiency—all while keeping the unit lightweight. Built from 100% aluminum, the coil is corrosion-resistant, ensuring long-term durability with minimal maintenance. Operating at quiet sound levels similar to a household conversation or dishwasher, the Universal® 48K blends comfort with discretion. Backed by a 10-year parts warranty and a 2-year limited labor warranty, this air handler is a smart investment in your home’s comfort and efficiency.

MRCOOL® Universal Series UHP18048-O 4 Ton 48,000 BTU Heat Pump Inverter Condenser - R-454B Specifications:

BRAND NAME

MRCOOL

SERIES

Universal R-454B

MODEL

UHP18048-O

GTIN

00840255587907

UPC

840255587907

UNIT TYPE

Universal Series Heat Pump

SHORT DESCRIPTION

Universal Series Heat Pump Inverter Condenser

LONG DESCRIPTION

The MRCOOL® Universal® Series 48K DC Inverter Heat Pump Condenser is built to deliver powerful, year-round comfort, even in the most demanding climate conditions. Whether you're facing extreme summer heat or bitter winter cold, this high-capacity unit maintains reliable airflow and consistent indoor temperatures. With an impressive 17.5 SEER2 efficiency rating, it’s designed to reduce energy consumption while maximizing performance—making it a smart choice for homeowners who want to upgrade without compromise. This condenser is an ideal solution for larger homes or spaces requiring robust heating and cooling. Its compact, space-saving design allows for greater installation flexibility, especially in properties with limited outdoor clearance. The system is also compatible with MRCOOL®’s innovative NO-VAC® Quick Connect® line set (sold separately). This pre-charged, sealed line set eliminates the need for vacuuming and flaring, simplifying installation and dramatically cutting labor time and costs. At the core of the 48K condenser is advanced DC inverter technology. Unlike conventional systems that constantly start and stop, this unit automatically adjusts output to match real-time demand. This not only improves energy efficiency but also ensures quieter operation, more consistent temperatures, and extended system life through reduced wear on components. Whether you’re installing new equipment or replacing an outdated system, the MRCOOL® Universal® Series 48K Condenser delivers reliable performance, intelligent efficiency, and long-term comfort. It’s backed by a 10-year parts warranty and a 2-year limited labor warranty, giving you added confidence and peace of mind.

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 Year Parts

BASE PARTS WARRANTY

10 Years

BASE LABOR WARRANTY

2 Year

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)

201.5

GROSS DEPTH (IN)

19.68

GROSS HEIGHT (IN)

42.52

GROSS WIDTH (IN)

45.08

GROSS WEIGHT (LBS)

232.59

RESOURCES

 

MRCOOL® Universal Series UAH18048-O 4 Ton 48,000 BTU Air Handler - R-454B - Multi-Position Specifications:

BRAND NAME

MRCOOL

SERIES

Universal R-454B

MODEL

UAH18048-O

GTIN

00840255587853

UPC

840255587853

UNIT TYPE

Universal Series Air Handler

SHORT DESCRIPTION

Universal Series 48,000 BTU Air Handler

LONG DESCRIPTION

The MRCOOL® Universal® Series 48K Air Handler is a high-efficiency HVAC solution engineered to deliver consistent, year-round comfort while helping homeowners cut down on energy costs. Whether you're upgrading an aging system or installing new equipment, this unit offers the ideal combination of performance, efficiency, and reliability. Designed with installation flexibility in mind, the Universal® 48K supports multiple configurations—including vertical, horizontal, and downflow setups—making it a versatile fit for a wide range of spaces. Its compact design allows for seamless placement in tight or unconventional areas. For added convenience, the unit is compatible with the MRCOOL® NO-VAC® Quick Connect® line set (sold separately), which arrives pre-charged to eliminate the need for vacuuming or flaring—significantly simplifying installation and saving on labor. The system also supports Universal® Series Heat Kits, offering increased heating capability during cold weather and providing peace of mind with emergency backup heat when needed. Inside, the air handler is equipped with an advanced M-shaped evaporator coil that maximizes surface area for heat exchange, enhances airflow, and improves overall system efficiency—all while keeping the unit lightweight. Built from 100% aluminum, the coil is corrosion-resistant, ensuring long-term durability with minimal maintenance. Operating at quiet sound levels similar to a household conversation or dishwasher, the Universal® 48K blends comfort with discretion. Backed by a 10-year parts warranty and a 2-year limited labor warranty, this air handler is a smart investment in your home’s comfort and efficiency.

CFM

1601/1442.1/1265.5/1088.9/N\A

TONNAGE

4

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

REFRIGERANT TYPE

R-454B

DECIBEL RATING (DBA)

N\A/53/49.5/33.5/N\A

DECIBEL RATING LOW (DBA)

33.5

DECIBEL RATING HIGH (DBA)

53

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

METERING DEVICE

EXV

AUXILIARY HEATER INCLUDED

No

AUXILIARY HEATER AVAILABLE

Yes

AUXILIARY HEATER SIZES

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 LABOR WARRANTY

2 Year

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)

25

GROSS WIDTH (IN)

59.84

GROSS WEIGHT (LBS)

232.14

RESOURCES

Thank you for visiting and shopping at Mini Split Systems Direct. Following are the terms and conditions that constitute our Shipping Policy.

Domestic Shipping Policy

Shipment processing time

All orders made before 2:00 PM EST are processed within 2-3 business days. Items ordered on weekends (Saturday or Sunday) start to process and ship as early as the following business day.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.

Shipping rates & delivery estimates

We offer standard free shipping via UPS Ground, FedEx Ground, and Freight for all orders in the United States. We do not currently ship to international locations. 

Destination Shipping method Processing Time Estimated Delivery Time Shipment cost
United States Free Shipping
2 - 3 business days 3 - 7 days Free


Delivery delays can occasionally occur.

Shipment confirmation & Order tracking

You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.

Customs, Duties and Taxes

Mini Split Systems Direct is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).

Damages & Missing Items

Please inspect all packages for damaged or missing items before accepting your shipment. If any of the items are missing or appear to have any type of damage; Mark the Receipt Damaged and/or missing (write which items are missing, or damaged and describe the damage).


Only refuse the items that are damaged, keep and sign for the items that are in good condition and be sure to notate the items that are being refused for damages clearly on the delivery receipt. You must contact our Customer Service Department at info@minisplitsystemsdirect.com to report which product(s) were missing and/or refused for damages and which product(s) were accepted at the time of delivery. After our Shipping Department receives confirmation from the Freight LTL Company we will promptly ship out the replacement product(s) to you.

Although Mini Split Systems Direct is NOT responsible for shipping damage, if your item(s) do arrive damaged, please send photos to info@minisplitsystemsdirect.com  and we can assist with filing a claim against the shipping carrier to cover the cost of damages.

Any damages or missing items have to be noted on the delivery receipt prior to signing for and accepting your shipment in order to file a claim. Do not let the delivery driver rush you. It is your right to inspect each and every item.

Pre-Orders, Backorders, and Out-of-Stock Items:

Mini Split Systems Direct is dedicated to sourcing any item you may need and getting it to you as quickly as possible. Any items that are out of stock, or available for Pre-Order will be noted on the product page. You are welcome to place an order for Pre-Order items, backorder items, and for items that are out of stock, and will ship them the second they become available from the manufacturer, ensuring you get the item before anyone else. If you have questions about lead times, please refer to the product page or contact us at info@minisplitsystemsdirect.com or give a call or text at 1-800-315-4345

Returns

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging.

All returns are subject to a 15% restocking fee, and the purchaser is responsible for the cost of return shipping.

To start a return, you can contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345. If your return is accepted, we will either schedule a pickup or send you a return shipping label, as well as instructions on how and where to send your package. Items sent back without first requesting a return will not be accepted.

You can always contact us for any return questions at info@minisplitsystemsdirect.com, or call us at 1-800-315-4345.

Refunds

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. A 15% restocking fee and the cost of return shipping will be deducted from the refundPlease allow up to 10 business days for your bank or credit card company to process and post the refund to your account. If you have any questions regarding your refund, please contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345.

Cancellations

All orders canceled after 24 hours are subject to a 5% administration fee, If your order has not been shipped yet, this is the only fee you will incur. This is a fee that covers administrative and personnel fees.

If your order has been shipped, you will not be charged a 5% administration fee, the standard return procedures will apply and you will be responsible for the cost of return shipping, and a 15% restocking fee will be ducted from your refund. Refunds will only be issued to the original payment method that you used when placing your order.

Damages and issues

Please inspect all packages for damaged or missing items before accepting your shipment. If any of the items are missing or appear to have any type of damage; Mark the Receipt Damaged and/or missing (write which items are missing, or damaged and describe the damage).

Only refuse the items that are damaged, keep and sign for the items that are in good condition and be sure to notate the items that are being refused for damages clearly on the delivery receipt. You must contact our Customer Service Department at info@minisplitsystemsdirect.com to report which product(s) were missing and/or refused for damages and which product(s) were accepted at the time of delivery. After our Shipping Department receives confirmation from the Freight LTL Company we will promptly ship out the replacement product(s) to you.

Although Mini Split Systems Direct is NOT responsible for shipping damage, if your item(s) do arrive damaged, please send photos to info@minisplitsystemsdirect.com  and we can assist with filing a claim against the shipping carrier to cover the cost of damages.

Any damages or missing items have to be noted on the delivery receipt prior to signing for and accepting your shipment in order to file a claim. Do not let the delivery driver rush you. It is your right to inspect each and every item. 

Exchanges

The fastest way to ensure you get what you want is to return the item you have (see return process above), and once the return is accepted, make a separate purchase for the new item.

Our goal is to consistently provide the best pricing in the marketplace online and we work very diligently to do so. If you happen to see another online shop that offers a lower price than us within six months of your date please let us know and we’ll be happy to refund the difference on your original payment method. Moreover, because we are consistently working with our suppliers to get better rates we know that you can feel very comfortable and confident that you are seeing the best prices that can be provided for the products listed on our site.

Moving forward if you find the same item that we carry on another website that has a lower price please submit that to us within six months of your purchase date and we will refund you the difference.

If it is a case of seeing a lower price on another website and we need to send a partial refund simply email us the link to the exact product and brand from our site and also the link from our competitors site so we can inspect the pricing. Again this needs to be within six months from the date of your order and we will review your submission and apply a credit if necessary.

Our Price Match Policy has some limitations:

  • The item must have already been purchased from our site prior to asking for this to be reviewed and submitted.
  • This does not include rebate programs or specific retailer programs such as buy three get one free type offers or any combination such as that are not eligible.
  • The item will need to be in stock from the competitors site that you’re submitting the information from.
  • The competitor must be an online store, they may not have a retail location, warehouse, showroom, or physical location.
  • The website cannot be a wholesaler, liquidator, distributor, or auction website. Examples are eBay, Liquadation.com, Via Trading, Overstock, Wayfair, Amazon, Home Depot, Lowes, etc.
  • The competitor must also be someone who has been authorized by the supplier and/or manufacturer to resell the product you are inquiring about.
  • The price match will include the product listing price, but will exclude any sales tax.

Can I add a discount code to my order post-purchase?

Unfortunately were unable to add a discount code to your order after you've checked out, but, were happy to provide you with discount for your next purchase.

Can I add items to my order?

Yes, please contact us a soon as possible if you need to make changes to your order and will send an invoice for the remaining amount due. Please note this may result in you receiving your order in multiple packages, and yes, you will receive a tracking number for each package.

Can I change or modify my order?

Yes, you can change or modify your order within the first 24 hours after placing your order, after that, it will depend on the status of your order. If you need to change or modify your order, please contact us as soon as possible at info@minisplitsystemsdirect.com. If your order has already been processed and shipped, then we may be unable to change or modify your order.

Can I place my order to be delivered outside the United States?

At this time we do not ship internationally, but please contact us we may be able to accommodate you.

How can I remove items from my order?

If you need to remove items from your order, please contact us at info@minisplitsystemsdirect.com within the first 24 hours after you placed your order. After 24 hours, you are subject to a 5% fee for the item that is cancelled to cover incurred credit card processing fees. If your order has not been shipped yet, this is the only fee you will incur.

If your order has been shipped, you will not be charged a 5% administration fee, the standard return procedures will apply and you will be responsible for the cost of return shipping, and a 15% restocking fee will be ducted from your refund. Refunds will only be issued to the original payment method that you used when placing your order. For more information, please see our return & refund policy here.

Do all the products you carry come with a warranty?

Yes, every product we carry includes a manufacturer warranty. If you need help with a warranty claim, please contact us at info@minisplitsystemsdirect.com and will help you resolve any issues you are experiencing with your product.

Do you have a storefront?

At this time we do not have a storefront, we're an online only Authorized Dealer for all the brand we carry. We do have plans to open a storefront in the future.

How do I check the status of my order?

After placing your order you'll receive a confirmation email, and after a Shipment Confirmation email once your order has shipped which will contain your tracking number(s). The tracking number will be active within 24 hours. If you have any other questions regarding the status of your order please contact us at  info@minisplitsystemsdirect.com or message us by live chat.

How long is shipping and delivery?

All orders made before 2:00 PM EST are processed within 2 - 3 business days. Items ordered on weekends (Saturday or Sunday) start to process and ship as early as the following business day. Estimated delivery time is 3 - 7 days.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.

Who do you ship with?

We offer standard free shipping via UPS Ground, FedEx Ground, and Freight for all orders in the United States.

How long will it take to receive my refund?

Please allow up to 10 business days for your bank or credit card company to process and post the refund to your account. If you have any questions regarding your refund, please contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345.

What is your return policy?

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging.

All returns are subject to a 15% restocking fee, and the purchaser is responsible for the cost of return shipping.

To start a return, you can contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345. If your return is accepted, we will either schedule a pickup or send you a return shipping label, as well as instructions on how and where to send your package. Items sent back without first requesting a return will not be accepted. Please see our full return & refund policy here.

What forms of payment do you accept?

We accept all credit cards, PayPal, Apple Pay, and you can pay in installments with Sezzle at checkout.

What should I do if my order is damaged or I'm missing items?

Please contact us within 48 hours of receiving your order at info@minisplitsystemsdirect.com and we'll resolve the issue ASAP.

What should I do if my order was marked as delivered but I haven't received it?

Although we cannot control what happens once your order leaves the warehouse and is in the hands of the shipping carrier, we will do everything we can to make sure you receive your order. If you have not received your order, please contact us at info@minisplitsystemsdirect.com with your order number, and provide us with any details that may help and rest assured, we will resolve the issue.

I’m having trouble tracking my order. What should I do?

If your order has just been shipped, please wait 24 hours for your tracking number to be updated properly with your latest tracking information. If after 24 hours your tracking information is not populating, please contact us at info@minisplitsystemsdirect.com and we will be more than happy to assist you.

Description

MRCOOL® Universal Series 4 Ton 48,000 BTU 17.5 SEER2 Central Heat Pump Inverter Split System - R-454B - Multi-position

Introducing the New & Improved MRCOOL® Universal® Split System

Say hello to the all-new MRCOOL® Universal® Split System—a smarter way to heat and cool your home. With an efficiency rating of 17.5 SEER2, this system helps lower your energy costs without sacrificing performance.

Designed for year-round comfort, it delivers powerful cooling in the summer and reliable heating in the winter—all in one advanced, easy-to-install unit. The upgraded blower and innovative M-Coil work together to provide strong, consistent airflow and enhanced temperature control throughout your home

Why You'll Love It

  • Installer-Friendly: Quick-connect panels and No-Vac® Quick Connect® line set compatibility means faster installs and fewer callbacks
  • Flexible Power: Adaptive Multi-Voltage - 115V OR 208/230V, one product fits multiple job sites.
  • Highly Efficiency: ENERGY STAR Most Efficient 2025, SEER2 up to 17.5 & HSPF2 up to 9.5.
  • Smart Ready: Works seamlessly with the smart thermostat you already own.

Five Sizes, Endless Possibilities

Available in 2, 2.5, 3, 4, and 5 Ton configurations, the Universal® can scale to meet the demands of homes up to 3,000 square feet (2,000 - 2,400 Sq Ft for the 4 Ton Model) - giving you the flexibility to meet the needs of your home or business across a wide range of projects.

Operating Range:

  • Cooling: -22℉ ~ 122℉
  • Heating: -22℉ ~75℉
  • 100% heat output at -13℉
  • Chassis heater and crankcase heater equipped as standard

Warranty:

  • 10 Year Parts + Compressor Warranty
  • 2 Year Labor Warranty
  • See full warranty details here: Warranty Document


What's Included:

 

1x MRCOOL® Universal Series UHP18048-O 4 Ton 48,000 BTU Heat Pump Inverter Condenser - R-454B

MRCOOL® Universal Series UHP18030-O 30,000 BTU Heat Pump Inverter Condenser - R-454B

The MRCOOL® Universal® Series 48K DC Inverter Heat Pump Condenser is built to deliver powerful, year-round comfort, even in the most demanding climate conditions. Whether you're facing extreme summer heat or bitter winter cold, this high-capacity unit maintains reliable airflow and consistent indoor temperatures. With an impressive 17.5 SEER2 efficiency rating, it’s designed to reduce energy consumption while maximizing performance—making it a smart choice for homeowners who want to upgrade without compromise. This condenser is an ideal solution for larger homes or spaces requiring robust heating and cooling. Its compact, space-saving design allows for greater installation flexibility, especially in properties with limited outdoor clearance. The system is also compatible with MRCOOL®’s innovative NO-VAC® Quick Connect® line set (sold separately). This pre-charged, sealed line set eliminates the need for vacuuming and flaring, simplifying installation and dramatically cutting labor time and costs. At the core of the 48K condenser is advanced DC inverter technology. Unlike conventional systems that constantly start and stop, this unit automatically adjusts output to match real-time demand. This not only improves energy efficiency but also ensures quieter operation, more consistent temperatures, and extended system life through reduced wear on components. Whether you’re installing new equipment or replacing an outdated system, the MRCOOL® Universal® Series 48K Condenser delivers reliable performance, intelligent efficiency, and long-term comfort. It’s backed by a 10-year parts warranty and a 2-year limited labor warranty, giving you added confidence and peace of mind.


1x MRCOOL® Universal Series UAH18048-O 4 Ton 48,000 BTU Air Handler - R-454B - Multi-Position

The MRCOOL® Universal® Series 48K Air Handler is a high-efficiency HVAC solution engineered to deliver consistent, year-round comfort while helping homeowners cut down on energy costs. Whether you're upgrading an aging system or installing new equipment, this unit offers the ideal combination of performance, efficiency, and reliability. Designed with installation flexibility in mind, the Universal® 48K supports multiple configurations—including vertical, horizontal, and downflow setups—making it a versatile fit for a wide range of spaces. Its compact design allows for seamless placement in tight or unconventional areas. For added convenience, the unit is compatible with the MRCOOL® NO-VAC® Quick Connect® line set (sold separately), which arrives pre-charged to eliminate the need for vacuuming or flaring—significantly simplifying installation and saving on labor. The system also supports Universal® Series Heat Kits, offering increased heating capability during cold weather and providing peace of mind with emergency backup heat when needed. Inside, the air handler is equipped with an advanced M-shaped evaporator coil that maximizes surface area for heat exchange, enhances airflow, and improves overall system efficiency—all while keeping the unit lightweight. Built from 100% aluminum, the coil is corrosion-resistant, ensuring long-term durability with minimal maintenance. Operating at quiet sound levels similar to a household conversation or dishwasher, the Universal® 48K blends comfort with discretion. Backed by a 10-year parts warranty and a 2-year limited labor warranty, this air handler is a smart investment in your home’s comfort and efficiency.

MRCOOL® Universal Series UHP18048-O 4 Ton 48,000 BTU Heat Pump Inverter Condenser - R-454B Specifications:

BRAND NAME

MRCOOL

SERIES

Universal R-454B

MODEL

UHP18048-O

GTIN

00840255587907

UPC

840255587907

UNIT TYPE

Universal Series Heat Pump

SHORT DESCRIPTION

Universal Series Heat Pump Inverter Condenser

LONG DESCRIPTION

The MRCOOL® Universal® Series 48K DC Inverter Heat Pump Condenser is built to deliver powerful, year-round comfort, even in the most demanding climate conditions. Whether you're facing extreme summer heat or bitter winter cold, this high-capacity unit maintains reliable airflow and consistent indoor temperatures. With an impressive 17.5 SEER2 efficiency rating, it’s designed to reduce energy consumption while maximizing performance—making it a smart choice for homeowners who want to upgrade without compromise. This condenser is an ideal solution for larger homes or spaces requiring robust heating and cooling. Its compact, space-saving design allows for greater installation flexibility, especially in properties with limited outdoor clearance. The system is also compatible with MRCOOL®’s innovative NO-VAC® Quick Connect® line set (sold separately). This pre-charged, sealed line set eliminates the need for vacuuming and flaring, simplifying installation and dramatically cutting labor time and costs. At the core of the 48K condenser is advanced DC inverter technology. Unlike conventional systems that constantly start and stop, this unit automatically adjusts output to match real-time demand. This not only improves energy efficiency but also ensures quieter operation, more consistent temperatures, and extended system life through reduced wear on components. Whether you’re installing new equipment or replacing an outdated system, the MRCOOL® Universal® Series 48K Condenser delivers reliable performance, intelligent efficiency, and long-term comfort. It’s backed by a 10-year parts warranty and a 2-year limited labor warranty, giving you added confidence and peace of mind.

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 Year Parts

BASE PARTS WARRANTY

10 Years

BASE LABOR WARRANTY

2 Year

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)

201.5

GROSS DEPTH (IN)

19.68

GROSS HEIGHT (IN)

42.52

GROSS WIDTH (IN)

45.08

GROSS WEIGHT (LBS)

232.59

RESOURCES

 

MRCOOL® Universal Series UAH18048-O 4 Ton 48,000 BTU Air Handler - R-454B - Multi-Position Specifications:

BRAND NAME

MRCOOL

SERIES

Universal R-454B

MODEL

UAH18048-O

GTIN

00840255587853

UPC

840255587853

UNIT TYPE

Universal Series Air Handler

SHORT DESCRIPTION

Universal Series 48,000 BTU Air Handler

LONG DESCRIPTION

The MRCOOL® Universal® Series 48K Air Handler is a high-efficiency HVAC solution engineered to deliver consistent, year-round comfort while helping homeowners cut down on energy costs. Whether you're upgrading an aging system or installing new equipment, this unit offers the ideal combination of performance, efficiency, and reliability. Designed with installation flexibility in mind, the Universal® 48K supports multiple configurations—including vertical, horizontal, and downflow setups—making it a versatile fit for a wide range of spaces. Its compact design allows for seamless placement in tight or unconventional areas. For added convenience, the unit is compatible with the MRCOOL® NO-VAC® Quick Connect® line set (sold separately), which arrives pre-charged to eliminate the need for vacuuming or flaring—significantly simplifying installation and saving on labor. The system also supports Universal® Series Heat Kits, offering increased heating capability during cold weather and providing peace of mind with emergency backup heat when needed. Inside, the air handler is equipped with an advanced M-shaped evaporator coil that maximizes surface area for heat exchange, enhances airflow, and improves overall system efficiency—all while keeping the unit lightweight. Built from 100% aluminum, the coil is corrosion-resistant, ensuring long-term durability with minimal maintenance. Operating at quiet sound levels similar to a household conversation or dishwasher, the Universal® 48K blends comfort with discretion. Backed by a 10-year parts warranty and a 2-year limited labor warranty, this air handler is a smart investment in your home’s comfort and efficiency.

CFM

1601/1442.1/1265.5/1088.9/N\A

TONNAGE

4

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

REFRIGERANT TYPE

R-454B

DECIBEL RATING (DBA)

N\A/53/49.5/33.5/N\A

DECIBEL RATING LOW (DBA)

33.5

DECIBEL RATING HIGH (DBA)

53

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

METERING DEVICE

EXV

AUXILIARY HEATER INCLUDED

No

AUXILIARY HEATER AVAILABLE

Yes

AUXILIARY HEATER SIZES

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 LABOR WARRANTY

2 Year

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)

25

GROSS WIDTH (IN)

59.84

GROSS WEIGHT (LBS)

232.14

RESOURCES

Shipping Policy

Thank you for visiting and shopping at Mini Split Systems Direct. Following are the terms and conditions that constitute our Shipping Policy.

Domestic Shipping Policy

Shipment processing time

All orders made before 2:00 PM EST are processed within 2-3 business days. Items ordered on weekends (Saturday or Sunday) start to process and ship as early as the following business day.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.

Shipping rates & delivery estimates

We offer standard free shipping via UPS Ground, FedEx Ground, and Freight for all orders in the United States. We do not currently ship to international locations. 

Destination Shipping method Processing Time Estimated Delivery Time Shipment cost
United States Free Shipping
2 - 3 business days 3 - 7 days Free


Delivery delays can occasionally occur.

Shipment confirmation & Order tracking

You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.

Customs, Duties and Taxes

Mini Split Systems Direct is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).

Damages & Missing Items

Please inspect all packages for damaged or missing items before accepting your shipment. If any of the items are missing or appear to have any type of damage; Mark the Receipt Damaged and/or missing (write which items are missing, or damaged and describe the damage).


Only refuse the items that are damaged, keep and sign for the items that are in good condition and be sure to notate the items that are being refused for damages clearly on the delivery receipt. You must contact our Customer Service Department at info@minisplitsystemsdirect.com to report which product(s) were missing and/or refused for damages and which product(s) were accepted at the time of delivery. After our Shipping Department receives confirmation from the Freight LTL Company we will promptly ship out the replacement product(s) to you.

Although Mini Split Systems Direct is NOT responsible for shipping damage, if your item(s) do arrive damaged, please send photos to info@minisplitsystemsdirect.com  and we can assist with filing a claim against the shipping carrier to cover the cost of damages.

Any damages or missing items have to be noted on the delivery receipt prior to signing for and accepting your shipment in order to file a claim. Do not let the delivery driver rush you. It is your right to inspect each and every item.

Pre-Orders, Backorders, and Out-of-Stock Items:

Mini Split Systems Direct is dedicated to sourcing any item you may need and getting it to you as quickly as possible. Any items that are out of stock, or available for Pre-Order will be noted on the product page. You are welcome to place an order for Pre-Order items, backorder items, and for items that are out of stock, and will ship them the second they become available from the manufacturer, ensuring you get the item before anyone else. If you have questions about lead times, please refer to the product page or contact us at info@minisplitsystemsdirect.com or give a call or text at 1-800-315-4345

Return and Refund Policy

Returns

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging.

All returns are subject to a 15% restocking fee, and the purchaser is responsible for the cost of return shipping.

To start a return, you can contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345. If your return is accepted, we will either schedule a pickup or send you a return shipping label, as well as instructions on how and where to send your package. Items sent back without first requesting a return will not be accepted.

You can always contact us for any return questions at info@minisplitsystemsdirect.com, or call us at 1-800-315-4345.

Refunds

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. A 15% restocking fee and the cost of return shipping will be deducted from the refundPlease allow up to 10 business days for your bank or credit card company to process and post the refund to your account. If you have any questions regarding your refund, please contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345.

Cancellations

All orders canceled after 24 hours are subject to a 5% administration fee, If your order has not been shipped yet, this is the only fee you will incur. This is a fee that covers administrative and personnel fees.

If your order has been shipped, you will not be charged a 5% administration fee, the standard return procedures will apply and you will be responsible for the cost of return shipping, and a 15% restocking fee will be ducted from your refund. Refunds will only be issued to the original payment method that you used when placing your order.

Damages and issues

Please inspect all packages for damaged or missing items before accepting your shipment. If any of the items are missing or appear to have any type of damage; Mark the Receipt Damaged and/or missing (write which items are missing, or damaged and describe the damage).

Only refuse the items that are damaged, keep and sign for the items that are in good condition and be sure to notate the items that are being refused for damages clearly on the delivery receipt. You must contact our Customer Service Department at info@minisplitsystemsdirect.com to report which product(s) were missing and/or refused for damages and which product(s) were accepted at the time of delivery. After our Shipping Department receives confirmation from the Freight LTL Company we will promptly ship out the replacement product(s) to you.

Although Mini Split Systems Direct is NOT responsible for shipping damage, if your item(s) do arrive damaged, please send photos to info@minisplitsystemsdirect.com  and we can assist with filing a claim against the shipping carrier to cover the cost of damages.

Any damages or missing items have to be noted on the delivery receipt prior to signing for and accepting your shipment in order to file a claim. Do not let the delivery driver rush you. It is your right to inspect each and every item. 

Exchanges

The fastest way to ensure you get what you want is to return the item you have (see return process above), and once the return is accepted, make a separate purchase for the new item.

Price Match Policy

Our goal is to consistently provide the best pricing in the marketplace online and we work very diligently to do so. If you happen to see another online shop that offers a lower price than us within six months of your date please let us know and we’ll be happy to refund the difference on your original payment method. Moreover, because we are consistently working with our suppliers to get better rates we know that you can feel very comfortable and confident that you are seeing the best prices that can be provided for the products listed on our site.

Moving forward if you find the same item that we carry on another website that has a lower price please submit that to us within six months of your purchase date and we will refund you the difference.

If it is a case of seeing a lower price on another website and we need to send a partial refund simply email us the link to the exact product and brand from our site and also the link from our competitors site so we can inspect the pricing. Again this needs to be within six months from the date of your order and we will review your submission and apply a credit if necessary.

Our Price Match Policy has some limitations:

  • The item must have already been purchased from our site prior to asking for this to be reviewed and submitted.
  • This does not include rebate programs or specific retailer programs such as buy three get one free type offers or any combination such as that are not eligible.
  • The item will need to be in stock from the competitors site that you’re submitting the information from.
  • The competitor must be an online store, they may not have a retail location, warehouse, showroom, or physical location.
  • The website cannot be a wholesaler, liquidator, distributor, or auction website. Examples are eBay, Liquadation.com, Via Trading, Overstock, Wayfair, Amazon, Home Depot, Lowes, etc.
  • The competitor must also be someone who has been authorized by the supplier and/or manufacturer to resell the product you are inquiring about.
  • The price match will include the product listing price, but will exclude any sales tax.

FAQ

Can I add a discount code to my order post-purchase?

Unfortunately were unable to add a discount code to your order after you've checked out, but, were happy to provide you with discount for your next purchase.

Can I add items to my order?

Yes, please contact us a soon as possible if you need to make changes to your order and will send an invoice for the remaining amount due. Please note this may result in you receiving your order in multiple packages, and yes, you will receive a tracking number for each package.

Can I change or modify my order?

Yes, you can change or modify your order within the first 24 hours after placing your order, after that, it will depend on the status of your order. If you need to change or modify your order, please contact us as soon as possible at info@minisplitsystemsdirect.com. If your order has already been processed and shipped, then we may be unable to change or modify your order.

Can I place my order to be delivered outside the United States?

At this time we do not ship internationally, but please contact us we may be able to accommodate you.

How can I remove items from my order?

If you need to remove items from your order, please contact us at info@minisplitsystemsdirect.com within the first 24 hours after you placed your order. After 24 hours, you are subject to a 5% fee for the item that is cancelled to cover incurred credit card processing fees. If your order has not been shipped yet, this is the only fee you will incur.

If your order has been shipped, you will not be charged a 5% administration fee, the standard return procedures will apply and you will be responsible for the cost of return shipping, and a 15% restocking fee will be ducted from your refund. Refunds will only be issued to the original payment method that you used when placing your order. For more information, please see our return & refund policy here.

Do all the products you carry come with a warranty?

Yes, every product we carry includes a manufacturer warranty. If you need help with a warranty claim, please contact us at info@minisplitsystemsdirect.com and will help you resolve any issues you are experiencing with your product.

Do you have a storefront?

At this time we do not have a storefront, we're an online only Authorized Dealer for all the brand we carry. We do have plans to open a storefront in the future.

How do I check the status of my order?

After placing your order you'll receive a confirmation email, and after a Shipment Confirmation email once your order has shipped which will contain your tracking number(s). The tracking number will be active within 24 hours. If you have any other questions regarding the status of your order please contact us at  info@minisplitsystemsdirect.com or message us by live chat.

How long is shipping and delivery?

All orders made before 2:00 PM EST are processed within 2 - 3 business days. Items ordered on weekends (Saturday or Sunday) start to process and ship as early as the following business day. Estimated delivery time is 3 - 7 days.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.

Who do you ship with?

We offer standard free shipping via UPS Ground, FedEx Ground, and Freight for all orders in the United States.

How long will it take to receive my refund?

Please allow up to 10 business days for your bank or credit card company to process and post the refund to your account. If you have any questions regarding your refund, please contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345.

What is your return policy?

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging.

All returns are subject to a 15% restocking fee, and the purchaser is responsible for the cost of return shipping.

To start a return, you can contact us at info@minisplitsystemsdirect.com or call us at 1-800-315-4345. If your return is accepted, we will either schedule a pickup or send you a return shipping label, as well as instructions on how and where to send your package. Items sent back without first requesting a return will not be accepted. Please see our full return & refund policy here.

What forms of payment do you accept?

We accept all credit cards, PayPal, Apple Pay, and you can pay in installments with Sezzle at checkout.

What should I do if my order is damaged or I'm missing items?

Please contact us within 48 hours of receiving your order at info@minisplitsystemsdirect.com and we'll resolve the issue ASAP.

What should I do if my order was marked as delivered but I haven't received it?

Although we cannot control what happens once your order leaves the warehouse and is in the hands of the shipping carrier, we will do everything we can to make sure you receive your order. If you have not received your order, please contact us at info@minisplitsystemsdirect.com with your order number, and provide us with any details that may help and rest assured, we will resolve the issue.

I’m having trouble tracking my order. What should I do?

If your order has just been shipped, please wait 24 hours for your tracking number to be updated properly with your latest tracking information. If after 24 hours your tracking information is not populating, please contact us at info@minisplitsystemsdirect.com and we will be more than happy to assist you.

Customer Reviews

Based on 7 reviews
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B
Brian Levine
The DIY dream is real!

This was by far my biggest DIY adventure and I’m here to tell you can pull it off with this unit.

D
David
Better than the old one

I like this A/C easy to install and better performance. My old A/C unit used to build up an ice inside the evap and could not cool my house. Mr Cool is the best DIY project.

G
Great DYI option for HVAC
Rodney Walker

Replaced two 20 Year old heat pump systems with the Mr. Cool Universal 4 Ton, and 5 Ton heat pump. The No-Vac charged lines are a game changer. It took a little research to figure out everything (I am not an HVAC tech) but I have basic electrical knowledge. Everything runs great. I contacted tech support through their online form and got an answer by the next day.

R
Rachelle Kovacic
Easy and works well!

This has worked great for our home. Husband installed and it has worked well.

J
JD
Great Product at a Great Price.

This order arrived on schedule as promised. The price was better than several other suppliers. Shipping was totally free. The hydraulic tailgate and unloading service normally at an extra fee was included as promised as well. I installed the system along with all new wiring, condenser water drainage system and balanced forced air ducting system. It has been operating for just over two weeks and my daily electrical consumption, based on my Enphase Manager Solar system software, has been cut in half in comparison to the previous HVAC system. It is as quiet as promised and at our low temperature last week of 28 degrees Fahrenheit the forced air temperature exiting the registers was 105 to 109 degrees, no auxiliary electric heat coils were installed. My 2000 square foot home heated very quickly maintaining consistent temperatures as programmed on my Heagstat H725 5-1-1-Day Programmable Heat Pump 2 Heat/1 Cool digital thermostat I bought three years ago.

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