Embraco Refrigerator Compressor EMS6170Z
How to Choose a High-Efficiency Low-Noise Compressor for Mini Refrigerators? — A Technical Guide with Embraco EMS6170Z
For mini refrigerators, wine coolers, and small commercial display units under 180L, the Embraco EMS6170Z hermetic reciprocating compressor delivers Class 1 energy efficiency (COP 1.72 W/W) and ultra-quiet operation (≤42 dB) on R134a refrigerant. With a rated input power of 95W and a displacement of 6.17 cc/rev, it is engineered for reliable performance in ambient temperatures from 25°C to 43°C.
This article breaks down the key selection criteria — energy efficiency, noise control, and start reliability — and provides the full technical specifications to help B2B buyers and engineers make informed sourcing decisions.
Key Selection Criteria for Small Refrigeration Compressors
When sourcing compressors for compact refrigeration equipment, three performance indicators have the greatest impact on end-product quality and market competitiveness.
1. Energy Efficiency Ratio (COP)
The Coefficient of Performance (COP) measures how effectively a compressor converts electrical energy into cooling output. A higher COP means lower electricity consumption over the product's lifetime. The EMS6170Z achieves a COP of 1.72 W/W under ASERCOM testing conditions, placing it in Energy Efficiency Class 1 — the highest tier for its capacity range.
2. Noise Level Control
For applications such as hotel minibars, bedside wine coolers, and office refrigerators, noise is a critical differentiator. The EMS6170Z operates at ≤42 dB(A), which is comparable to a quiet library environment. This makes it a preferred choice for OEMs targeting premium, noise-sensitive markets.
3. Start Reliability in Low Temperatures
Compressors in wine coolers and beverage display units often need to start under low-temperature conditions. The EMS6170Z is equipped with a PTC start mechanism and delivers a start torque of 3.2 N·m, ensuring stable cold-start performance without external assistance.
Embraco EMS6170Z — Technical Specifications
Electrical & Refrigeration Parameters
| Parameter | Value |
|---|---|
| Refrigerant | R134a |
| Voltage / Frequency | 220-240V / 50Hz |
| Rated Input Power | 95W |
| Rated Current (max) | 1.8A |
| Displacement | 6.17 cc/rev |
| Cooling Capacity (@ -23°C) | 160W |
| COP (ASERCOM) | 1.72 W/W (Class 1) |
| Evaporating Temp. Range | -25°C to 10°C |
| Max Condensing Temp. | 65°C |
Mechanical & Environmental Parameters
| Parameter | Value |
|---|---|
| Compressor Type | Fully Enclosed Reciprocating (Piston) |
| Motor Speed | 1500 RPM |
| Start Type | PTC Starter |
| Start Torque | 3.2 N·m |
| Noise Level | ≤42 dB(A) |
| Vibration Acceleration | ≤1.2 m/s² |
| Shell Treatment | Phosphated (600h Salt Spray Test) |
| Installation | Horizontal Only |
| Ambient Temp. Range | 25°C to 43°C |
| Thermal Protection | Yes (Built-in) |
Recommended Application Scenarios
Based on its performance profile, the EMS6170Z is best suited for the following B2B applications:
- Hotel Minibars — Ultra-quiet operation (≤42 dB) ensures guest comfort; Class 1 efficiency reduces energy costs at scale.
- Built-in Wine Coolers — Low vibration (≤1.2 m/s²) protects wine sediment; stable low-temperature start maintains consistent storage conditions.
- Single-Door Refrigerators (≤180L) — 95W rated power and 160W cooling capacity provide an optimal match for compact residential units.
- Small Commercial Display Coolers — Stable operation up to 43°C ambient temperature supports use in retail environments without climate control.
Installation & Maintenance Notes
Proper installation is essential for achieving the rated performance and lifespan of the compressor. The following guidelines should be observed:
- Horizontal installation is required. Non-horizontal mounting may cause lubrication failure and premature compressor damage.
- Avoid strong magnetic fields and ammonia-containing atmospheres during installation and operation.
- Maximum operating altitude: 3000 meters above sea level.
- Dust concentration limit: ≤10 mg/m³ in the installation environment.
- The built-in thermal protection will automatically shut down the compressor if overheating is detected. Allow the unit to cool before restarting.
Certifications & Compliance
The EMS6170Z meets the following international standards, ensuring compatibility with global supply chains:
- CE — European Conformity (safety and EMC)
- CCC — China Compulsory Certification
- RoHS — Restriction of Hazardous Substances
Frequently Asked Questions
What refrigerant does the Embraco EMS6170Z use?
The EMS6170Z uses R134a refrigerant, which is widely adopted for small to medium refrigeration applications and compliant with RoHS standards.
What is the cooling capacity of the EMS6170Z?
The EMS6170Z delivers a cooling capacity of 160W at an evaporating temperature of -23°C, making it suitable for refrigerators and freezers with a capacity of up to 180L.
What is the noise level of the EMS6170Z compressor?
The EMS6170Z operates at a noise level of ≤42 dB(A), which meets the ultra-quiet standard required for hotel minibars, wine coolers, and residential applications.
What certifications does the EMS6170Z hold?
The EMS6170Z holds CE, CCC, and RoHS certifications, ensuring compliance with international safety and environmental standards.
Is the EMS6170Z suitable for tropical climate conditions?
Yes. The EMS6170Z is designed to operate stably in ambient temperatures ranging from 25°C to 43°C, with a maximum condensing temperature of 65°C, making it suitable for T3 tropical climate conditions.
Compressor Selection Checklist
5-Step Verification Before Sourcing
- Confirm the required cooling capacity and evaporating temperature range for your application.
- Verify the noise level requirement — ≤42 dB(A) for noise-sensitive environments.
- Check ambient temperature range compatibility (25°C–43°C for tropical conditions).
- Confirm certification requirements (CE, CCC, RoHS) for your target market.
- Ensure horizontal installation is feasible in your equipment design.
Need a Quote or Technical Support?
If you are sourcing the Embraco EMS6170Z for your refrigeration project, our engineering team can provide datasheets, performance curves, and bulk pricing tailored to your requirements.
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