Power Your Cold Chain with the Hitachi Scroll Compressor AA55PHDG-D1Y2

When performance, reliability, and energy savings matter most, the Hitachi Scroll Compressor AA55PHDG-D1Y2 delivers unmatched efficiency for modern commercial refrigeration systems. Engineered with precision by Hitachi Johnson Controls-Hitachi Air Conditioning (now part of Johnson Controls), this hermetic scroll compressor combines advanced technology with rugged durability—making it the ideal choice for supermarkets, convenience stores, cold storage facilities, and food processing environments.

Engineered for Demanding Refrigeration Applications

The AA55PHDG-D1Y2 is a 4.5 HP (nominal), single-phase scroll compressor optimized for use with R-404A refrigerant. With a displacement of 55 cc/rev, it provides stable cooling capacity across a wide evaporating temperature range of -35°C to +10°C (-31°F to +50°F), making it perfect for medium- and low-temperature applications such as:

• Walk-in coolers and freezers
• Refrigerated display cases (dairy, meat, frozen foods)
• Beverage coolers and ice machines
• Small cold rooms and prep kitchens

Key Technical Specifications:

• Model: AA55PHDG-D1Y2
• Refrigerant: R-404A
• Power Supply: 220–240V / 1Ph / 60Hz
• Displacement: 55 cc/rev
• Oil Type: POE (Polyolester)
• Application Range: Evaporating temp: -35°C to +10°C (-31°F to +50°F)
• Protection: Built-in thermal overload protector

Solve Common Refrigeration Challenges—Effortlessly

Traditional compressors often struggle with noise, vibration, frequent cycling, and high energy consumption. The Hitachi AA55PHDG-D1Y2 addresses these issues head-on with its patented scroll design, which features fewer moving parts and smoother operation. This translates into real-world benefits:

• Up to 15% higher energy efficiency vs. conventional reciprocating compressors
• Ultra-quiet operation—ideal for customer-facing retail environments
• Reduced maintenance costs thanks to robust construction and minimal wear
• Stable temperature control even under variable load conditions

Whether your system runs 12 or 24 hours a day, this compressor ensures consistent performance while lowering your total cost of ownership.

Why Professionals Trust Hitachi Scroll Technology

Backed by decades of Japanese engineering excellence, the Hitachi AA55PHDG-D1Y2 isn’t just a component—it’s a smart investment in system longevity and operational peace of mind. Its compact footprint also simplifies installation and retrofitting into existing refrigeration units without major redesigns.

For businesses aiming to meet sustainability goals, reduce downtime, and enhance product preservation, this compressor delivers tangible results where it counts.

Upgrade to Smarter Cooling Today

Choose the Hitachi Scroll Compressor AA55PHDG-D1Y2—where innovation, efficiency, and reliability converge in every rotation.
Built for performance. Trusted by refrigeration experts worldwide.