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RFC4D/4G
RFC
The Midume 4-Cylinder RFC Semi-Hermetic Reciprocating Compressor is a compact, mid-capacity solution designed for commercial refrigeration systems where space and efficiency are critical. Building on RFC’s reputation for quiet operation, this 4-cylinder model delivers consistent cooling performance for medium-scale applications—its semi-hermetic design balances durability (cast-iron housing) with serviceability (detachable top cover for valve access), making it ideal for small to medium businesses (e.g., craft breweries, neighborhood supermarkets) that need reliable cooling without high upfront costs. The compressor also features a built-in crankcase heater (prevents liquid refrigerant migration during shutdown) and a refrigerant filter drier (removes moisture), reducing the need for additional system components.
Space-Saving Design: Measures 24×14×18 inches (L×W×H) and weighs 125 kg—20% smaller than comparable 4-cylinder compressors. This compact size allows installation in under-counter units (e.g., café beverage coolers) or tight mechanical rooms (e.g., small supermarkets with limited backend space).
Efficient Performance: Delivers 10-15 kW of cooling capacity with a power consumption of 3.2-4.5 kW under standard conditions (30℃ condensing, 5℃ evaporating). A Class F insulated motor (temperature rating up to 155℃) and optimized piston stroke (80mm) achieve an EER of 8.2, reducing monthly energy bills for small businesses.
Low Maintenance: Self-cleaning valve plates (coated with a non-stick PTFE layer) prevent refrigerant oil buildup, reducing valve cleaning frequency by 50%. Extended-life bearings (sealed with nitrile rubber) require no grease, and oil replacement is only needed every 7,000 hours (vs. 5,000 hours for standard models).
Refrigerant Compatibility: Supports R134a (for beverage coolers, display cases), R407C (for mixed-temperature systems, e.g., supermarket freezers + coolers), and low-GWP R449A (compliant with EU F-Gas and U.S. EPA rules). Refrigerant ranges from 3-5 kg, depending on system size.
Craft brewery fermentation cooling: Maintains precise temperatures for yeast fermentation (12-15℃ for ale, 8-10℃ for lager), supporting small-batch production (up to 500 liters per batch).
Laboratory refrigeration (2-8℃): Stores reagents, samples, and equipment for research labs (e.g., university chemistry labs), complying with GLP (Good Laboratory Practices) standards for temperature stability (±0.5℃).
Bakery dough proofing chambers: Cools dough from 38℃ (proofing temperature) to 20℃ after proofing, preventing over-rising and ensuring consistent loaf size for artisanal breads.
