Micro Matic USA Pro-Line Back Bar Coolers - MMPP4301

Micro Matic USA Pro-Line Back Bar Coolers - MMPP4301

Built for serious draft beer professionals, the Pro-Line power pack provides the stable, ice-cold glycol circulation you need to keep every pint tasting brewery-fresh—no matter how far the run from cooler to tap.

Features

• Air-cooled 1/3 HP refrigeration system delivers a full 2,300 BTU/h of cooling capacity without a water hookup.
• 11.5 gal (43.5 L) glycol bath is foam-insulated and features an exterior sight glass for easy level checks.
• User-programmable digital thermostat maintains rock-solid bath temperature.
• 80 gph rotary-vane circulation pump (1/3 HP motor) guarantees consistent flow through long trunklines.
• Rugged stainless-steel cabinet with expanded urethane insulation and anti-vibration pads.
• Plug-and-play NEMA 5-15P power cord and compact 30" W footprint simplify installation.
• Charged with eco-friendly R-134a refrigerant and certified cETLus for safety.

Specifications

What our Experts Think

• Core long-draw glycol power system: The MMPP4301 is a Pro-Line™ glycol-cooled power pack, engineered to maintain consistent beer temperature across long-draw draft systems using circulating propylene glycol and a high-efficiency refrigeration loop.
• Reliable 2,300 BTU cooling performance: Built around a 1/3 HP compressor delivering ~2,300 BTU, it provides stable cooling capacity for multi-tap systems in bars, restaurants, and taprooms.
• Dual-pump circulation efficiency: The system typically includes 80 GPH rotary vane glycol pumps (often dual in PKG variants) for strong, consistent glycol flow across extended beer line runs.
• Large insulated glycol reservoir: Features an ~11.5 gallon glycol bath with heavy insulation, helping maintain temperature stability during peak service and reducing thermal fluctuation.
• Built for demanding commercial environments: Stainless steel cabinet construction, vibration isolation, and service-friendly access make it suitable for continuous operation in high-volume draft systems.
• Precision digital temperature control: Integrated thermostat and monitoring system help ensure consistent dispensing conditions and reduced foam issues across all taps.
• Expert takeaway: Best suited for venues needing a dependable backbone glycol system for long-draw draft installations, prioritizing stability, scalability, and consistent beer quality across multiple taps.

Q&A

Q: What is the Micro Matic MMPP4301 used for?
A: It is a commercial Pro-Line™ glycol power pack system, designed to support long-draw draft beer systems by keeping beer lines cold from keg to faucet in bars, restaurants, and taprooms.

Q: Is this a refrigerator or a beer tower?
A: Neither. The MMPP4301 is a glycol cooling unit (power pack) that works with remote draft systems to maintain consistent beer temperature over long distances.

Q: What are the key specifications?
A: It features a 2,300 BTU cooling system, 1/3 HP air-cooled compressor, 11.5-gallon glycol bath, and circulation pump(s) for continuous coolant flow to beer lines.

Q: What is its main function in a draft system?
A: It circulates chilled glycol through insulated trunk lines to ensure beer stays at the correct serving temperature even when the tap is far from the kegs.

Q: How many pumps does it include?
A: The MMPP4301 typically includes 1 glycol circulation pump, designed for efficient single-loop or standard multi-line systems.

Q: What type of cooling does it use?
A: It uses an air-cooled refrigeration system with a glycol bath that stabilizes temperature for long-draw beverage delivery. 

Q: What electrical requirements does it need?
A: It runs on 115V single-phase power, typically using a standard commercial plug depending on configuration.

Q: Where is it commonly used?
A: It is used in large bars, stadiums, breweries, and restaurants where beer must travel long distances from storage to tap.

Maintenance Tips

• Clean glycol bath regularly: Inspect and replace glycol/water mixture periodically to prevent algae, scaling, and reduced cooling efficiency.
• Check glycol level: Maintain correct bath level (11.5 gal capacity) to ensure proper circulation and consistent cooling.
• Clean condenser coils: Remove dust and grease buildup to maintain 2,300 BTU cooling performance and reduce compressor strain.
• Inspect circulation pumps: Verify both glycol pumps are operating smoothly to ensure even temperature distribution in long-draw lines.
• Keep ventilation clear: Ensure proper airflow around the unit to avoid overheating in high-ambient bar environments.
• Check fittings & insulation: Inspect hoses, insulation, and connections for leaks or wear that can reduce cooling efficiency.
• Flush system during service: Periodically flush glycol lines as part of preventive maintenance to avoid blockages or contamination.
• Inspect electrical system: Ensure stable 115V supply and secure connections to prevent downtime or compressor damage.
• Deep clean annually: Drain system completely, sanitize bath, and refill with fresh glycol solution for optimal performance.