Embraco NEK6187Z compressor R134a 1/3 HP HBP commercial refrigeration replacement specifications technical data
Embraco NEK6187Z Compressor | 1/3 HP | R134a | HBP | 220-240V 50Hz | POE Oil 380cc | Commercial Refrigeration
When you’re dealing with commercial refrigeration equipment, finding the right compressor can make or break your system. The Embraco NEK6187Z is one of those workhorse compressors you’ll find in plenty of beverage coolers, ice machines, and commercial display cases. Let’s dive into what makes this compressor tick and everything you need to know about it.
Technical Specifications Overview
| Specification | Details |
|---|---|
| Model | NEK6187Z |
| Brand | Embraco/Aspera |
| Utilisation (MBP/HBP/LBP) | HBP (High Back Pressure) / MBP |
| Domaine (Freezing/Cooling) | Cooling (Commercial Refrigeration) |
| Cooling Wattage at -23°C | Approximately 480W |
| Cubic Feet Capacity | 8-12 cubic feet |
| Litres Capacity | 200-350 litres |
| Kcal/h | 774 kcal/h (at +5°C evap) |
| TON | 0.26 TR (approximate) |
| Oil Type and Quantity | POE Oil 380cc (350-380ml) |
| Horsepower (HP) | 1/3 HP |
| Refrigerant Type | R134a |
| Power Supply | 220-240V ~ 50Hz, 1 Phase |
| Cooling Capacity BTU | 3,340 BTU/h (at +5°C) |
| Motor Type | CSIR (Capacitor Start Inductor Run) |
| Displacement | 10.0 cm³ (9.99 cc) |
| Winding Material | Copper |
| Pressure Charge | Delivered with dry air (~1 bar) or light vacuum |
| Capillary | Capillary tube system |
| Refrigerator Models | Whirlpool K40 ice machines, commercial display cases, beverage coolers |
| Temperature Function | -15°C to +10°C evaporating range |
| With Fan or No | Yes (fan cooling recommended – 520 m³/h) |
| Commercial or No | Yes – Commercial grade |
| Amperage in Function | Operating: ~1.3A, LRA: 16.1A |
| LRA (Locked Rotor Amps) | 16.1A |
| Type of Relay | CSIR start relay required |
| Capacitor | Yes – Start capacitor required (starting device mandatory) |
| Country of Origin | Slovakia |
| Exporting Countries | Throughout Europe, Middle East, Asia-Pacific |
Cooling Capacity at Different Temperatures
The NEK6187Z performs differently depending on your evaporating temperature. Here’s what you can expect
gastroparts.com:
| Evaporating Temperature | Cooling Capacity |
|---|---|
| -10°C | 482 W |
| -5°C | 624 W |
| 0°C | 791 W |
| +5°C | 983 W |
| +10°C | 1,201 W |
Efficiency Metrics (COP)
Understanding the Coefficient of Performance helps you gauge efficiency at different operating conditions:
| Evaporating Temp (°C) | -30 | -25 | -23.3 | -20 | -15 | -10 | 0 | 4 | 10 |
|---|---|---|---|---|---|---|---|---|---|
| Cooling Capacity (Watts) | 280 | 380 | 420 | 480 | 580 | 688 | 900 | 1020 | 1200 |
| Power Consumption (Watts) | 320 | 340 | 350 | 365 | 390 | 420 | 480 | 520 | 580 |
| COP | 0.88 | 1.12 | 1.20 | 1.32 | 1.49 | 1.64 | 1.88 | 1.96 | 2.07 |
Note: COP values calculated based on EN 12900 test conditions with condensing temperature at +54.4°C for HBP applications
www.hutes-klima-technika.hu
Application Details
This compressor is built for high back pressure (HBP) applications, which means it’s designed for warmer refrigeration tasks like:
- Beverage coolers
- Display cases
- Ice machines
- Wine coolers
- Commercial refrigerators
The unit features high starting torque (HST), which is crucial for commercial applications where you might have hard starting conditions
www.skh-kaeltetechnik.de. The CSIR motor design provides reliable performance, though it does require a starting device – the label clearly states “NO START WITHOUT STARTING DEVICE” for a reason
crwltd.co.uk.
Physical Characteristics
- Connection Type: Tube-to-tube connections
- Suction Line: 1/4″ diameter
- Height: Approximately 200mm
- Weight: Around 11-12 kg
- Terminal Type: European standard terminal board
Oil Information
The compressor uses POE (Polyolester) oil with a viscosity grade of POE 22. The oil charge is 380cc (though some sources indicate 350ml is acceptable)
www.prokes-auto.com. POE oil is hygroscopic, meaning it absorbs moisture from the air, so you need to work quickly during installation and keep the system sealed.
Electrical Specifications
- Voltage Range: 220-240V, 50Hz (single phase)
- Motor Protection: Thermally protected (built-in overload)
- Starting Current: 16.1A maximum
- Running Current: Approximately 1.0-1.3A under normal conditions
- Start Device: External CSIR start relay and capacitor required
Replacement Compressors
Same Refrigerant (R134a) – Direct Replacements
- Embraco NEU6210Z – 1/3 HP, R134a, HBP, similar displacement
- Embraco NE6187Z – Previous generation, identical specs
- Secop/Danfoss SC12G – 1/3 HP, 12.87cc, R134a, HBP/MBP www.ebay.co.uk
- Secop/Danfoss TL3G – Universal compressor, 1/3 HP equivalent, R134a www.piecesfrigo.com
- GMCC FH2711 – 10.8cc, R134a, HBP application manuals.plus
Alternative Refrigerant Replacements
If you’re considering converting to a different refrigerant:
- Embraco NEU6212Z (R290) – Propane, similar capacity, requires system modification
- Embraco NLE11MN (R290) – 1/2 HP equivalent, natural refrigerant whufc.pl
- Secop SC15G (R600a) – Isobutane, 1/3 HP class, requires different oil and charge allairaircon.co.za
- GMCC R600a 10cc series – Direct displacement match, different refrigerant refricompressor.com
- Embraco FFI10HBX (R134a) – Alternative R134a option, 1/3 HP www.ebay.com
Important: Switching refrigerants isn’t a simple swap. You’ll need to change the oil type, adjust the charge, and possibly modify the capillary tube or expansion device. R290 and R600a are flammable refrigerants requiring special handling and certification.
Common Applications
You’ll find the NEK6187Z working in:
- Whirlpool K40 ice machines – This is a very common application www.ascateringsupplies.com
- Commercial beverage dispensers
- Glass door display refrigerators
- Undercounter commercial fridges
- Hospitality refrigeration equipment
- Supermarket display cases (medium temperature)
Installation Tips
- Always use a starting device – The compressor won’t start without the proper CSIR start relay and capacitor
- Fan cooling is recommended – Use a fan with at least 520 m³/h airflow for optimal performance www.kaeltetechnikshop.com
- Check oil level – POE oil absorbs moisture quickly; minimize exposure time
- Evacuation – Pull a good vacuum (500 microns or better) before charging
- Charge carefully – Follow the equipment manufacturer’s specifications
Troubleshooting Common Issues
Compressor won’t start:
- Check start relay and capacitor (most common issue)
- Verify voltage at terminals
- Check thermal overload
High amp draw:
- Check for restricted capillary tube
- Verify proper refrigerant charge
- Inspect condenser for dirt/restriction
Low cooling capacity:
- Check for refrigerant leaks
- Inspect evaporator fan operation
- Verify proper door seals on equipment
Where to Buy
These compressors are available through:
- HVAC/R wholesale distributors
- Online refrigeration parts suppliers
- Commercial equipment service companies
- Direct from Embraco authorized distributors
Pricing typically ranges from $150-250 USD depending on your location and supplier
hvacspareparts.com.
Warranty and Support
Embraco compressors typically come with a 1-year warranty from the date of manufacture. Always keep your proof of purchase and verify the manufacturing date code before installation.
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When you’re dealing with commercial refrigeration equipment, finding the right compressor can make or break your system. The Embraco NEK6187Z is one of those workhorse compressors you’ll find in plenty of beverage coolers, ice machines, and commercial display cases. Let’s dive into what makes this compressor tick.
