MRCOOL 12K BTU, 1 Ton, R-32 Compact Refrigeration System (MMFDW12D)

MRCOOLSKU: MMFDW12D
47 reviews

Price:
Sale price$2,751.35 Regular price$3,579.00SAVE 23%
Backorder
Estimated restock: Mid October
Free Curbside Delivery — carrier calls to schedule

Free Curbside Delivery

Included on every order
Ships free by freight carrier. Your order leaves the warehouse tracked, on a palletized freight truck.
The carrier calls ahead. You'll schedule a delivery window that works for you before the truck heads out.
Delivered to the curb. The item is placed at the end of your driveway. Moving it inside is your responsibility, so plan to have help on hand for heavy pieces.
Before you sign: inspect the packaging for damage. Signing the delivery receipt confirms it arrived in good condition.

Description

The MRCOOL® Compact Refrigeration System is an all-in-one system that integrates the evaporator, condenser, compressor, and controls into a single cabinet for maximum efficiency and convenience. Designed for diverse applications—from cold storage renovations to custom walk-ins—it delivers dependable performance with advanced DC inverter technology and variable frequency control. This enables smooth operation, low startup current, and wide capacity adjustment for fast cooling or high-efficiency partial-load performance.

Equipped with BLDC fans and a high-pressure centrifugal blower, it efficiently handles ducted configurations and multiple small zones while maintaining quiet, precise temperature control. Meanwhile, its integrated hot gas defrost provides quick and efficient operation, and hybrid power compatibility reduces utility costs and adds energy flexibility.

Designed for quick and versatile installation, this refrigeration system’s horizontal configuration and compact size allows it to fit into tight or unconventional spaces. Its galvanized steel cabinet with epoxy coating resists corrosion, while safety features—intelligent defrost, and multi-layer protection—ensure reliable operation across food service, agriculture, manufacturing, and hospitality environments. Smart connectivity through WiFi and the MRCOOL® Connect App provides fully-remote monitoring, control, alerts, and software updates from any device, with a well-established wired controller to centralize system control.

Sustainability is built in: the MRCOOL® Compact Refrigeration System uses R-32 refrigerant, offering strong cooling performance with a lower global-warming potential. The result is a forward-thinking, energy-efficient refrigeration solution that combines intelligent control, durable construction, flexible installation, and eco-friendly design—delivering powerful, reliable cooling and long-term value for modern homes and businesses, all backed by a 1-year parts, 3-year compressor, and 1-year unit replacement warranty.

Features

  • DC direct power input: 370VDC
  • AWEF (Medium Temp): 8.1
  • Outdoor ambient operation range: 5F~113°F
  • Indoor operation range: 0°F~50°F
  • Defrost method: Hot Gas Defrost
  • Controls: Forced Cooling, Manual Defrost, Screen Lock
DIMENSIONS & WEIGHT
Net Depth (in)
38.58
Net Height (in)
21.65
Net Width (in)
28.15
Net Weight (lbs)
180
Gross Depth (in)
39.37
Gross Height (in)
28.74
Gross Width (in)
30.12
Gross Weight (lbs)
231
GENERAL INFORMATION
Mount Type
Through the wall or ducted
Color
Dark Grey
Inverter
Yes
CAPACITY & PERFORMANCE
Tonnage
1
Cooling Capacity (BTU)
12,000
CFM (Inside)
1,036
CFM (Outside)
942
COMPRESSOR & MOTORS
Compressor Motor Type
EVI DC Inverter Rotary
Condenser Fan Motor Type
Axial-Flow
Condenser Fan Motor RPM
950
Blower Motor Type
Variable Speed Centrifugal Fan
Blower Motor RPM
1,900
NOISE LEVELS
Decibel Rating Low (dBA) Inside
76
Decibel Rating High (dBA) Outside
66
ELECTRICAL REQUIREMENTS
Voltage (V)
208/230
Phase
1
Cycle
50/60
Max Fuse Breaker (A)
25
Min Circuit Ampacity (A)
17
REFRIGERANT & PIPING
Refrigerant Type
R-32
Refrigerant Volume (oz)
56.4
Metering Device
EEV
CONTROLS & CONNECTIVITY
Control Type
Wired
Adjustable Thermostat
Yes
WiFi Compatibility
Yes
App Compatibility
Yes
Works With iOS
Yes
Works With Android
Yes
SAFETY
UL Listed
Yes
CSA Listed
Yes
ETL Listed
Yes
Contains Electronics
Yes
Contains Chemicals
Yes
Contains Compressed Gas
Yes
WARRANTY
Base Warranty
1 Year Parts, 3 Year Compressor, 1 Year Unit Replacement
Base Parts Warranty
1 Year Parts
Base Compressor Warranty
3 Year Compressor
Shipping
  • Free Shipping on all orders.
  • Large Appliances: Ship via Curbside Delivery — the carrier delivers to your property but not inside your home.
  • Small Items: Ship via standard ground delivery (FedEx or similar), such as small appliances, range hoods, sinks, faucets, and accessories.
Full shipping policy
Returns
  • 30-Day Return Policy: Return requests must be submitted within 30 days of your delivery date. We cannot process returns after this period.
  • Return Requirements: Products must be unused, uninstalled, and in their original packaging (including box and pallet) to qualify.
  • Restocking Fee: A restocking fee may apply and varies by brand.
Full returns policy
Authorized MRCOOL Dealer
Full manufacturer warranty on every MRCOOL product we sell.

Customer Reviews

Based on 47 reviews
87%
(41)
11%
(5)
2%
(1)
0%
(0)
0%
(0)
J
Jim M. (Los Angeles, CA)
Easy to install and working great.

I needed to replace another unit that a previous contractor didn't do any part of that installation correctly, and the condensation line was leaking inside the house, running down the wall since that installation!! The indoor coil was 1-1/2" out of level, the line set wasn't wrapped, the electrical was tapped into the same circuit as the garage light and outlets...it was a mess.

It took me more time to demo the old unit out than to install the one I bought from you.

Thank you.

B
Bill (Philadelphia, PA)
Very pleased.

Very pleased with the price, delivery, ease of installation, and above all during this heatwave it is working excellently.

N
Natalie N. (San Jose, CA)
Perfect for our needs!

I ordered a 2 zone unit for the bedrooms in our home. It took a few months to arrive (manufacturer issue, nothing to do with HOD, and we were contacted on more than one occasion with an order update which was much appreciated!), but when it did arrive was very easy to install. Both the heat and AC function work perfectly, and our family is very happy!

R
Robert W. (Marietta, GA)
Decent Company

I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.

P
Peter K. (Phoenix, AZ)
Pretty Easy Install and Works Great!

Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!

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