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.

Embraco NEK6187Z compressor R134a 1_3 HP HBP commercial refrigeration replacement specifications technical data – Mbsmpro Download