MRCOOL Compact Refrigeration System 12,000 BTU, MMFDW12D
Model: MMFDW12D
Overview
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.
Highlights
- All-in-one design: Evaporator, condenser, compressor, and controls are integrated into a single cabinet for easier installation and service access.
- Advanced compressor technology: EVI DC inverter rotary compressor supports smooth startup, efficient modulation, and stable temperature control.
- Flexible mounting options: Designed for through-the-wall or ducted applications, making it suitable for tight or unconventional spaces.
- Smart controls: Includes wired control and supports WiFi app connectivity for remote monitoring, alerts, and system updates.
- Hot gas defrost: Integrated defrost design helps support reliable refrigeration performance.
- Corrosion-resistant construction: Galvanized steel cabinet with epoxy coating is built for demanding environments.
- Lower-GWP refrigerant platform: Uses R-32 refrigerant for modern performance and refrigerant efficiency.
What’s Included
- MRCOOL Compact Refrigeration System, MMFDW12D
- Wired controller support
- Access to installation, remote, service, and warranty documents listed below
System Specs
| Spec | Details |
|---|---|
| Brand Name | MRCOOL |
| Series | Compact Refrigeration |
| Model | MMFDW12D |
| GTIN | 00840255591997 |
| UPC | 840255591997 |
| Unit Type | Packaged Refrigeration System |
| Cooling Capacity | 12,000 BTU |
| Tonnage | 1 |
| CFM | 1,036 Inside / 942 Outside |
| Voltage | 208/230V |
| Phase | 1 |
| Cycle | 50/60 |
| Max Fuse Breaker | 25A |
| Minimum Circuit Ampacity | 17A |
| Mount Type | Through the wall or ducted |
| Color | Dark Grey |
| Refrigerant Type | R-32 |
| Refrigerant Volume | 56.4 oz |
| Inverter | Yes |
| Control Type | Wired |
| Adjustable Thermostat | Yes |
| WiFi Compatibility | Yes |
| App Compatibility | Yes |
| Works With iOS | Yes |
| Works With Android | Yes |
Mechanical & Performance Specs
| Spec | Details |
|---|---|
| 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 |
| Metering Device | EEV |
| Published Sound Level | 76 dBA Inside / 66 dBA Outside |
| UL Listed | Yes |
| CSA Listed | Yes |
| ETL Listed | Yes |
| Base Warranty | 1 Year Parts, 3 Year Compressor, 1 Year Unit Replacement |
| Base Parts Warranty | 1 Year Parts |
| Base Compressor Warranty | 3 Year Compressor |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
Dimensions & Shipping
| Spec | Details |
|---|---|
| Net Depth | 38.58 in |
| Net Height | 21.65 in |
| Net Width | 28.15 in |
| Net Weight | 180 lbs |
| Gross Depth | 39.37 in |
| Gross Height | 28.74 in |
| Gross Width | 30.12 in |
| Gross Weight | 231 lbs |
Documents & Downloads
Important
Professional installation is recommended. Verify application fit, electrical requirements, ventilation strategy, and control setup before installation. For refrigeration projects, confirm the unit matches your box size, temperature target, and installation layout requirements before purchase.
FAQs
What type of system is this?
What refrigerant does this system use?
Can this unit be installed through the wall or ducted?
Does it support WiFi and app control?
What is the cooling capacity?
What warranty is included?
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We will prepare your order within 24 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION: Please be kindly informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery. To AVOID delays, please check if the provided phone number in the order details is a current number where you can be reached. You can also contact the carrier directly and refer to your tracking number to set up a date and time for your appointment. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. PLEASE verify your shipping address, as changes to the address after freight has shipped can result in an additional 15% or higher fee depending on freight weight and dimensions.
SMALLWARES INFORMATION: Please be informed that for smaller items, such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves, when these items are ordered individually, they may be shipped via FedEx without a signature requirement. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING: Please inspect your boxes thoroughly when you receive them. They should arrive shrink-wrapped and on a pallet. If you notice any damages or imperfections (e.g. crushed box or forklift hole), please write comments on the receipt before signing for delivery, no matter how small damages seem. Contact us immediately to assist you.
Shipping & Delivery
We will prepare your order within 24–48 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION
Please be informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery.
To AVOID delays, please make sure the phone number in your order details is accurate and one where you can be reached. You may also contact the carrier directly using your tracking number to schedule your delivery.
It is your responsibility to ensure a safe and secure delivery environment. We are not liable for any packages that are stolen or lost after delivery is confirmed.
Please verify your shipping address carefully. Changes to your shipping address after the freight has been shipped may result in additional fees of 15% or more, depending on freight weight and dimensions.
SMALLWARES INFORMATION
Smaller items such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves may be shipped via FedEx without a signature requirement if ordered individually.
It is your responsibility to ensure a safe delivery location. We are not liable for packages lost or stolen after delivery confirmation. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING
Please inspect your boxes carefully upon delivery. Shipments should arrive shrink-wrapped and on a pallet. If you notice any damage or signs of mishandling (such as a crushed box or forklift puncture), write comments on the delivery receipt before signing, even if the damage appears minor.
Contact us immediately if any issues arise so we can assist you promptly.
SMS Delivery Notifications
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