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

1. Embraco NEU6210Z – 1/3 HP, R134a, HBP, similar displacement
2. Embraco NE6187Z – Previous generation, identical specs
3. Secop/Danfoss SC12G – 1/3 HP, 12.87cc, R134a, HBP/MBP www.ebay.co.uk
4. Secop/Danfoss TL3G – Universal compressor, 1/3 HP equivalent, R134a www.piecesfrigo.com
5. GMCC FH2711 – 10.8cc, R134a, HBP application manuals.plus

Alternative Refrigerant Replacements

If you’re considering converting to a different refrigerant:

1. Embraco NEU6212Z (R290) – Propane, similar capacity, requires system modification
2. Embraco NLE11MN (R290) – 1/2 HP equivalent, natural refrigerant whufc.pl
3. Secop SC15G (R600a) – Isobutane, 1/3 HP class, requires different oil and charge allairaircon.co.za
4. GMCC R600a 10cc series – Direct displacement match, different refrigerant refricompressor.com
5. 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

1. Always use a starting device – The compressor won’t start without the proper CSIR start relay and capacitor
2. Fan cooling is recommended – Use a fan with at least 520 m³/h airflow for optimal performance www.kaeltetechnikshop.com
3. Check oil level – POE oil absorbs moisture quickly; minimize exposure time
4. Evacuation – Pull a good vacuum (500 microns or better) before charging
5. 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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Excerpt (First 55 words)

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.

The Embraco EM2Z 80HL.C compressor requires approximately 150 ml (5.07 fl. oz.) of oil. The correct oil type is Polyolester (POE) with a viscosity of ISO 10, designed for use with R134a refrigerant.

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Discover detailed specifications for the Embraco EM2Z 80HL.C compressor. 1/4 HP, R134a, 220-240V 50Hz, LBP with 150ml POE oil capacity. Comprehensive technical analysis and comparisons on Mbsmpro.com.

Excerpt:
The Embraco EM2Z 80HL.C is a robust hermetic reciprocating compressor engineered for refrigeration efficiency. Featuring a 1/4 HP motor and optimized for R134a refrigerant, this Brazilian-made unit delivers reliable Low Back Pressure (LBP) performance. This guide details its 150ml oil charge, electrical specs, and competitive advantages for technicians.

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The Engineering Standard: Embraco EM2Z 80HL.C Technical Analysis

In the demanding world of commercial and domestic refrigeration, the Embraco EM2Z 80HL.C stands out as a reliable workhorse. Manufactured in Brazil, this hermetic reciprocating compressor is designed to meet the rigorous standards of modern cooling appliances. As refrigeration technicians seek precise data for repairs and replacements, understanding the core specifications of the EM2Z series becomes paramount for ensuring system longevity and efficiency.

This unit is specifically calibrated for Low Back Pressure (LBP) applications, making it an ideal choice for freezers, refrigerators, and display cabinets that require consistent temperature maintenance between -35°C and -10°C.

Detailed Technical Specifications

The EM2Z 80HL.C utilizes a high-efficiency motor configuration compatible with 220-240V at 50Hz power sources. Its internal architecture balances displacement with energy consumption, offering a streamlined solution for 1/4 HP refrigeration circuits.

Specification Category	Technical Data
Brand	Embraco (Nidec)
Model	EM2Z 80HL.C
Refrigerant	R134a (Tetrafluoroethane)
Displacement	6.76 cm³ (approx.)
Horsepower (HP)	1/4 HP (Light) / 1/5 HP (Heavy)
Voltage/Frequency	220-240V ~ 50Hz
Application	LBP (Low Back Pressure)
Evaporating Range	-35°C to -10°C (-31°F to 14°F)
Motor Type	RSIR / RSCR (Check Starting Device)
Locked Rotor Amps (LRA)	5.32 A
Oil Charge Quantity	150 ml (5.07 fl. oz.)
Oil Type	Ester (POE) ISO 10
Expansion Device	Capillary Tube
Cooling Capacity	~170 – 190 Watts (ASHRAE LBP)
Origin	Made in Brazil

Critical Lubrication Guidelines

One of the most frequent inquiries regarding the EM2Z 80HL.C involves its lubrication requirements. This compressor is factory-charged with 150 ml of Polyolester (POE) oil.

Technicians must strictly adhere to this quantity and oil type. R134a refrigerant requires POE oil due to its chemical miscibility properties. Using mineral oil or alkylbenzene will result in system failure, as these oils do not transport correctly with HFC refrigerants, leading to oil logging in the evaporator and eventual compressor seizure. The ISO 10 viscosity rating ensures the lubricant remains fluid enough to return to the compressor even at low evaporating temperatures.

Comparative Market Analysis

When evaluating the Embraco EM2Z 80HL.C, it is useful to compare it against similar compressors in the 1/4 HP, R134a LBP category. The table below highlights how it stacks up against competitors from Secop (Danfoss) and Tecumseh.

Feature	Embraco EM2Z 80HL.C	Secop (Danfoss) TL5G	Tecumseh THG1365Y
Nominal HP	1/5+ to 1/4 HP	1/6+ to 1/5 HP	1/5 HP
Displacement	6.76 cm³	5.08 cm³	5.90 cm³
Voltage	220-240V 50Hz	220-240V 50Hz	220-240V 50Hz
Efficiency (COP)	High	Standard	Standard
Motor Tech	RSIR/RSCR	RSIR/CSIR	PTCS_CR
Oil Type	POE ISO 10	POE	POE

Note: The EM2Z 80HL.C often provides a slightly higher displacement than standard “light” 1/5 HP models, bridging the gap toward a full 1/4 HP performance.

Installation and Service Best Practices

For optimal performance, the EM2Z 80HL.C should be installed with a clean, moisture-free system. The POE oil is highly hygroscopic (absorbs moisture), so the compressor plugs should only be removed immediately before brazing.

1. Vacuum Deeply: Ensure the system is evacuated to at least 500 microns to remove all moisture that could react with the POE oil.
2. Starting Device: This model explicitly states “No Start Without Starting Device.” Ensure the original relay and overload protector (or approved replacements) are used to prevent winding damage.
3. Condenser Airflow: As a static or fan-cooled unit, ensure the condenser is free of dust to maintain the head pressure within design limits, preserving the relatively small 5.32 LRA motor from thermal stress.

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Copeland ZB50KCE Scroll Compressor Nameplate: How to Read the Label and Choose the Right Polyester Oil

The photo shows the damaged nameplate of a Copeland ZB50KCE scroll compressor, factory‑charged with polyester (POE) oil for medium‑temperature refrigeration. Correctly interpreting this label helps technicians confirm oil, power, voltage and safety limits during service or replacement.​

Compressor identification

The model belongs to the Copeland ZB series, used in commercial cold rooms and process cooling for refrigerants such as R404A, R134a and R22 alternatives. Depending on voltage code (TFD‑551, TFD‑950, etc.), it is sold as a 7 hp medium‑temperature compressor with around 11.9 kW nominal capacity.​

• Model code example: ZB50KCE‑TFD‑551 or ZB50KCE‑TFD‑950.​
• Technology: Hermetic scroll, part of the Summit series designed for higher seasonal efficiency.​

Polyester oil (POE) on the label

The upper part of the label still shows POLYESTER OIL, confirming that the compressor is charged with POE lubricant. Catalogues list oil charges of about 2.6–2.7 l using approved POE types such as RL32‑3MAF or Mobil EAL Arctic 22 CC, depending on the variant.​

• POE oil absorbs moisture quickly, so systems must be evacuated deeply and fitted with quality filter‑driers.​
• Only compatible POE grades should be added; mixing with mineral or alkylbenzene oil is not permitted.​

Technical data with hp and W

The following table compiles typical data for a Copeland ZB50KCE‑TFD‑551 running as a medium‑temperature refrigeration compressor; values may vary slightly by refrigerant and exact model.​

Parameter	Typical value for ZB50KCE*
Nominal power	7 hp​
Nominal capacity	11.9 kW cooling (≈11 900 W)​
Electrical power input	≈7.5–7.9 kW depending on conditions​
Displacement	19.8 m³/h​
Supply voltage	380–420 V/3/50 Hz and 460 V/3/60 Hz (TFD code)​
Maximum operating current	14.6 A​
Locked‑rotor current	≈100 A​
Oil type	POE (e.g. RL32‑3MAF)​
Oil quantity	2.6–2.7 l​
Sound level	≈64 dBA at 1 m​
Net weight	≈59 kg (TFD‑551)​

*Always confirm with the exact data sheet for your compressor code.​

Voltage and operating limits on the sticker

On the lower part of the photographed label, remnants of “Volt 1 380 … Volt 2 460” can be identified, matching the dual‑voltage three‑phase motor used in TFD models. Another line mentions maximum current around 14.6 A, which is the value used to size breakers, contactors and cables.​

• The TFD motor code indicates 380–420 V/3/50 Hz and 460 V/3/60 Hz with internal motor protection.​
• Respecting these limits and using proper overload protection prevents overheating and nuisance trips in commercial installations.​

Practical maintenance notes

For technicians such as those in Mbsmgroup and Mbsm.pro, a faded nameplate is common on older units, but the combination of model code and official catalogue restores all critical information. Creating a new service label with hp, kW, voltage, POE oil type and charge simplifies future troubleshooting and reduces the risk of mistakes during oil changes or retrofits.​

• When replacing or topping up oil, always isolate the compressor, recover refrigerant and work under clean, dry conditions.​
• If in doubt about capacity or application limits, refer to the Copeland ZB range catalogue and selection software before approving a replacement.​