MRCOOL Compact Refrigeration System 12K BTU R-32, MMFDW12D
Overview
The MRCOOL Compact Refrigeration System is an all-in-one packaged refrigeration solution that combines the evaporator, condenser, compressor, and controls into a single cabinet for efficient installation and dependable operation. Built for cold storage renovations, custom walk-ins, and other demanding commercial applications, model MMFDW12D uses advanced DC inverter technology with variable frequency control for smooth startup, flexible capacity adjustment, and stable temperature management.
Its compact horizontal design fits tight spaces, while the galvanized steel cabinet with epoxy coating helps resist corrosion in challenging environments. Added features like hot gas defrost, BLDC fan motors, a high-pressure centrifugal blower, wired control, and WiFi connectivity through the MRCOOL Connect App make this a smart, modern refrigeration option for food service, agriculture, manufacturing, and hospitality use.
Highlights
- All-in-one cabinet design: Integrates the evaporator, condenser, compressor, and controls into one compact system for easier installation and space-saving flexibility.
- Inverter-driven performance: EVI DC inverter rotary compressor technology supports lower startup current, smoother operation, and wide capacity adjustment.
- Flexible installation: Designed for through-the-wall or ducted applications, making it suitable for unconventional layouts and retrofit projects.
- Smart monitoring and control: Wired controller plus WiFi app compatibility supports remote monitoring, alerts, control, and software updates.
- Built for demanding environments: Galvanized steel cabinet with epoxy coating, intelligent defrost, and multi-layer protection support long-term reliability.
- Lower-GWP refrigerant platform: Uses R-32 refrigerant for strong cooling performance with a more modern refrigerant profile.
12,000 BTU
208/230V, 1 Phase, 50/60 Cycle
1,036 CFM Inside, 942 CFM Outside
Through the Wall or Ducted
This is a packaged refrigeration system for cold storage and related applications, not a conventional comfort-cooling split system.
What's Included
- Packaged Refrigeration System: MRCOOL MMFDW12D
- Integrated Controls: Wired control platform with app compatibility
- Documentation: Brochure, install manuals, service manual, remote manual, and warranty documents listed below
System Specs
Model: MMFDW12D
| Brand | MRCOOL |
| Series | Compact Refrigeration |
| Unit Type | Packaged Refrigeration System |
| Model | MMFDW12D |
| GTIN / UPC | 00840255591997 / 840255591997 |
| Tonnage | 1 Ton |
| Cooling Capacity | 12,000 BTU |
| Airflow | 1,036 CFM Inside / 942 CFM Outside |
| Voltage | 208/230V |
| Phase | 1 |
| Cycle | 50/60 |
| Max Fuse Breaker | 25A |
| Minimum Circuit Ampacity | 17A |
| Mount Type | Through the wall or ducted |
| 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 & Construction Specs
| Color | Dark Grey |
| 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 Ratings | 76 dBA Inside / 66 dBA Outside |
| UL Listed | Yes |
| CSA Listed | Yes |
| ETL Listed | Yes |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
| Base Warranty | 1 Year Parts, 3 Year Compressor, 1 Year Unit Replacement |
| Parts Warranty | 1 Year Parts |
| Compressor Warranty | 3 Year Compressor |
Dimensions & Shipping
| Net Width | 28.15 in |
| Net Depth | 38.58 in |
| Net Height | 21.65 in |
| Net Weight | 180 lbs |
| Gross Width | 30.12 in |
| Gross Depth | 39.37 in |
| Gross Height | 28.74 in |
| Gross Weight | 231 lbs |
Documents & Downloads
Important
- Application fit: This unit is designed for refrigeration applications such as walk-ins, cold storage retrofits, and specialty conditioned spaces.
- Installation planning: Confirm through-wall or ducted layout requirements before purchase, especially for custom builds and retrofit projects.
- Electrical requirements: Verify 208/230V service, MCA, and breaker sizing with the installation manual and local code.
- Control setup: Wired control is standard, with added WiFi and app compatibility for remote monitoring and alerts.
- Warranty review: Check the warranty document for coverage terms, exclusions, and claim requirements before installation.
FAQs
Is this a packaged refrigeration system?
Yes. The MMFDW12D is a packaged refrigeration system with the evaporator, condenser, compressor, and controls integrated into one cabinet.
What kind of installation does it support?
This model is designed for through-the-wall or ducted installation, giving you more flexibility for tight spaces and custom layouts.
Does it use inverter technology?
Yes. It uses an EVI DC inverter rotary compressor with variable frequency control for smoother operation and wider capacity adjustment.
Can I monitor and control it remotely?
Yes. The system supports WiFi connectivity and app control through the MRCOOL Connect App, along with a wired control setup.
What refrigerant does it use?
This system uses R-32 refrigerant, with a listed refrigerant volume of 56.4 oz.
What warranty coverage is listed?
The published warranty is 1 year parts, 3 year compressor, and 1 year unit replacement.
