Embraco ELF12G-A1-LDBM Scroll Compressor | 3.5 HP | 12,847 BTU/h (3,762 W) LBP Cooling | Three-Phase | R404A (With Service Valves)

Designed for low-temperature (LBP) commercial refrigeration applications — cold rooms, blast freezers and low-temperature display cabinets — this is the Embraco ELF12G-A1-LDBM scroll compressor. It has a nominal power of 3.5 HP and a three-phase (380-420V / 3~ / 50Hz) supply, and operates in the LBP (low back pressure) range. With R404A refrigerant under ARI LBP conditions (evaporating -31.7°C / condensing 40.6°C), it delivers 12,847 BTU/h (3,762 W) of cooling capacity; it is supplied with service valves.

3.5 HP Three-Phase LBP Commercial Refrigeration Scroll Compressor (R404A)

Embraco (Nidec Global Appliance) scroll compressors provide reliable and durable performance in low-temperature commercial refrigeration with few moving parts, low vibration and high efficiency. The ELF12G-A1-LDBM is a three-phase solution with service valves, compatible with R404A/R507/R452A refrigerants.

Key Features

• Scroll technology — few parts, low vibration, high efficiency
• 3.5 HP nominal, three-phase (380-420V / 3~ / 50Hz) supply
• LBP (low temperature) range; R404A / R507 / R452A compatible
• 12,847 BTU/h (3,762 W) LBP cooling capacity; COP 1.4
• Supplied with service (rotalock) valves

Technical Specifications

• Brand / Model: Embraco (Nidec) / ELF12G-A1-LDBM
• Type: Scroll compressor, hermetic, fixed speed
• Application: Commercial refrigeration — low temperature (LBP)
• Nominal Power: 3.5 HP (3.5 horsepower)
• Power Supply: Three-phase — 380-420V / 3~ / 50Hz (60Hz: 460V)
• Cooling Capacity: 12,847 BTU/h (3,762 W) — R404A, ARI LBP (evaporating -31.7°C / condensing 40.6°C)
• Power Input: 2,691 W; COP 1.4; EER 4.8
• Displacement: 57.5 cm³/rev (10 m³/h @ 2900 rpm / 50Hz)
• Compatible Refrigerants: R404A / R507 / R452A
• Service Valve: Yes (rotalock)
• Weight: ~30 kg (based on equivalent Copeland ZF11)
• Equivalent (cross-reference): Copeland ZF11K, Danfoss LLZ013, Bitzer 2DES

Technician Tips

• Braze the connections on the service (rotalock) valves under nitrogen to prevent internal oxidation.
• In LBP applications, pay attention to selecting the correct refrigerant (R404A/R507/R452A) and a suitable expansion device.
• Verify the phase sequence and direction of rotation of the three-phase motor at first start-up; a scroll must not run in reverse.
• Evacuate the system thoroughly before commissioning; moisture leads to oil breakdown and winding failure.
• The stated capacity is at ARI LBP (-31.7°C / 40.6°C) conditions; confirm for your own conditions with the Embraco selection tool.