Household type (different capacity) www.teksogutan.com
Applications
This compressor is ideal for:
Commercial freezers and deep freezers
Beverage cooling systems and drink dispensers
Display cabinets for frozen foods
Ice cream cabinets
Cold storage rooms (small to medium size)
Medical refrigeration (vaccine freezers, laboratory equipment)
Transport refrigeration units
Key Features
✓ Robust German engineering – Manufactured in Germany with strict quality control ✓ Versatile refrigerant compatibility – Works with both R404A and R507 ✓ Wide temperature range – Operates efficiently from -45°C to +10°C evaporating temperature ✓ High starting torque – HST design ensures reliable starts even under load ✓ Energy efficient – COP up to 1.88 at optimal conditions ✓ Commercial grade – Built for demanding commercial refrigeration applications
Installation Notes
Oil compatibility: Uses polyolester (POE) oil – ensure system is clean and compatible
Starting components: Requires appropriate starting capacitor and relay (CSIR motor)
Refrigerant charge: Maximum 1300g – follow manufacturer specifications
Electrical: Ensure proper voltage supply (220-240V 50Hz single phase)
Cooling: Requires adequate ventilation and fan cooling (F2 specification)
Professional installation: Must be installed by certified refrigeration technicians
The SC18CLX.2 (104L2197) is a professional-grade hermetic reciprocating compressor manufactured by Danfoss/Secop in Germany. Designed for commercial freezing applications, it operates with R404A/R507 refrigerants on 220-240V 50Hz power supply. With 17.68 cm³ displacement and CSIR motor technology, this LBP compressor delivers reliable performance.
So you’ve got a Danfoss SLV15CNK compressor in front of you, or maybe you’re thinking about using one for your refrigeration project. Either way, you’re looking at a pretty sophisticated piece of kit. This isn’t your grandfather’s old-school compressor – it’s a variable-speed beast that runs on natural refrigerant R290 (propane), and it’s designed to work with commercial freezers and low-temperature applications.
What makes this compressor stand out is its inverter technology. Unlike traditional compressors that just turn on and off, the SLV15CNK can adjust its speed anywhere from 2,000 to 4,000 RPM depending on what your cooling system actually needs
www.secop.com. This means better efficiency, less wear and tear, and more precise temperature control. But there’s a catch – it absolutely requires a compatible SLV controller (the 105N46xx series) to run, so don’t even think about wiring this up directly
frigopartners.com.
Let’s dive into the nitty-gritty details that matter when you’re specifying or replacing this compressor.
Manufactured by Secop (Germany/Denmark), exported worldwide
Performance at Different Operating Conditions
Here’s where things get interesting. Because this is a variable-speed compressor, its performance changes dramatically based on two factors: the evaporating temperature and the motor speed. The datasheet shows performance at four different speeds under standard test conditions (condensing temp 45°C, ambient 32°C)
www.secop.com.
Efficiency Metrics (COP) Table
Evaporating Temp (°C)
-30
-25
-23.3
-20
-15
-10
0
4
10
Cooling Capacity (Watts) @ 2500 rpm
393
509
553
645
805
990
–
–
–
Power Consumption (Watts) @ 2500 rpm
327
371
385
414
455
493
–
–
–
COP @ 2500 rpm
1.20
1.37
1.43
1.56
1.77
2.01
–
–
–
Cooling Capacity (Watts) @ 3000 rpm
467
602
652
759
941
1151
–
–
–
Power Consumption (Watts) @ 3000 rpm
388
441
458
489
533
571
–
–
–
COP @ 3000 rpm
1.21
1.37
1.43
1.55
1.77
2.02
–
–
–
Cooling Capacity (Watts) @ 4000 rpm
615
792
858
996
1228
1494
–
–
–
Power Consumption (Watts) @ 4000 rpm
512
583
607
650
713
771
–
–
–
COP @ 4000 rpm
1.20
1.36
1.42
1.53
1.72
1.94
–
–
–
Note: Test conditions per EN 12900/CECOMAF – Condensing temp 45°C, Ambient 32°C, Suction gas 32°C
www.secop.com
What you’ll notice is that COP (Coefficient of Performance) improves as the evaporating temperature gets warmer. At -30°C, you’re looking at a COP around 1.20, but at -10°C, that jumps to over 2.0. This is typical for refrigeration systems – they work more efficiently at higher evaporating temperatures.
Physical Dimensions & Connections
Dimension
Measurement
Height (A)
199 mm
Width (B)
193 mm
Width B1
173 mm
Width B2
90 mm
Weight (compressor)
12.0 kg
Weight (electronic unit)
1.4 kg
Suction connector
10.2 mm I.D., 37° angle, Copper with rubber plug
Discharge connector
6.2 mm I.D., 37° angle, Copper with rubber plug
Process connector
6.2 mm I.D., 37° angle, Copper with rubber plug
Connector tolerance
±0.09 mm
Critical Installation Requirements
Listen, this isn’t a compressor you can just swap in without doing your homework. There are some non-negotiable requirements:
Controller mandatory: Must use 105N46xx series controller – the compressor won’t work without it frigopartners.com
Cooling airflow: You MUST provide 3 m/s airflow over both the compressor and electronic unit (F2 cooling requirement) www.secop.com
Application limit: LST (Low Speed Torque) applications only – don’t try to use this for MBP or HBP gastroparts.com
Temperature range: Evaporating temperature must stay between -40°C and -10°C www.secop.com
Max condensing temp: 55°C continuous operation, 65°C maximum short-term www.secop.com
Max winding temp: 125°C continuous, 135°C short-term www.secop.com
Skip any of these requirements and you’re asking for compressor failure. The datasheet is crystal clear about this
www.secop.com.
Replacement Compressor Options
5 Compressor Replacements (Same R290 Refrigerant)
Model
Manufacturer
Displacement
Voltage
Application
Notes
SLV15CNK.2
Secop/Danfoss
15.28 cm³
220-240V
LBP
Same model – direct replacement
SLV18CNK.2
Secop/Danfoss
18.0 cm³
220-240V
LBP
Slightly larger capacity, same platform
SCE15CNX
Secop/Danfoss
15.28 cm³
220-240V
LBP/MBP
Fixed speed alternative, CSCR motor www.prokes-auto.com
Important: Changing refrigerants is NOT a simple swap. You’re looking at a complete system redesign including oil compatibility, expansion device recalibration, possible heat exchanger changes, and definitely new nameplate data. Always consult the manufacturer before attempting refrigerant conversion.
Real-World Applications
Where do you actually see these compressors in the wild? Based on what we’ve found, the SLV15CNK.2 shows up in:
Ice cream freezers – soft serve and hard ice cream displays www.green-cooling-initiative.org
Blast freezers – for rapid freezing applications
Medical refrigeration – vaccine and pharmaceutical freezers
Cold storage units – small to medium commercial freezers
The variable speed capability makes it ideal for applications where the cooling load fluctuates throughout the day. Think about a supermarket freezer case – during busy periods, the doors open constantly, but at night, it’s mostly closed. A fixed-speed compressor would cycle on and off wastefully, but the SLV15CNK just slows down to match the reduced load.
Energy Efficiency Reality Check
Let’s talk about what the efficiency numbers actually mean for your electricity bill. At typical freezer operating conditions (-23.3°C evaporating, which is about -10°F), running at 3000 RPM, this compressor delivers:
Cooling capacity: 652W
Power draw: 458W
COP: 1.43
That COP of 1.43 means for every watt of electricity you put in, you get 1.43 watts of cooling out. Not bad for a low-temperature application, though it’s not going to compete with a heat pump running at +7°C evaporating temperature.
The real energy savings come from the variable speed capability. Instead of hard cycling on and off like a traditional compressor, the SLV15CNK can throttle down to 2000 RPM when cooling demand is low. This saves energy AND reduces wear on the mechanical components. Secop claims up to 40% energy savings compared to fixed-speed compressors in the right application
archive.hydrocarbons21.com.
Common Problems & Troubleshooting
After working with these compressors, here are the issues technicians run into most often:
Problem: Compressor won’t start
Check that the 105N46xx controller is properly powered and configured
Verify all three motor phases are connected (this is a three-phase motor)
Confirm voltage is within 180-254V range
Check for error codes on the controller display
Problem: Overheating
Most common cause: insufficient airflow (remember, you need 3 m/s minimum)
Check that the cooling fan is actually moving enough air
Verify the compressor compartment isn’t sealed – it needs fresh air
Ambient temperature above 43°C will cause problems
Problem: Poor cooling performance
Check refrigerant charge (max 150g for this model)
Verify the evaporator and condenser are clean
Make sure you’re not exceeding the -40°C to -10°C evaporating range
Confirm the controller isn’t limiting speed unnecessarily
Problem: High power consumption
Could indicate mechanical wear or refrigerant issues
Check for restricted airflow on condenser side
Verify evaporator isn’t iced up
Look for non-condensables in the system
Maintenance Tips
These compressors are pretty robust, but they’re not maintenance-free:
Keep it clean: Dust and debris on the compressor body will kill heat transfer
Check the fan: That 3 m/s airflow requirement isn’t a suggestion – verify fan operation regularly
Monitor the controller: The 105N46xx controller has diagnostic capabilities – use them
Oil condition: POE oil is hygroscopic (absorbs moisture) – keep the system sealed tight
Vibration: Check mounting bolts periodically – this thing weighs 12kg and spins up to 4000 RPM
The Bottom Line
The Danfoss SLV15CNK.2 is a serious piece of engineering. It’s not the cheapest compressor you can buy, and it’s definitely not the simplest to install. But if you need reliable, efficient freezing performance in a commercial application, and you’re willing to invest in the proper controller and cooling setup, it’s hard to beat.
The fact that it uses R290 (propane) is both a blessing and a challenge. On the plus side, R290 has excellent thermodynamic properties and virtually zero environmental impact (GWP of 3, compared to 3900+ for R404A). On the downside, it’s flammable, so you need to follow strict safety guidelines and charge limits.
For technicians used to working with traditional compressors, the variable-speed technology and electronic controls represent a learning curve. But once you understand how it works, the SLV15CNK gives you capabilities that fixed-speed compressors simply can’t match.
Excerpt (first 55 words): The Danfoss SLV15CNK is a sophisticated variable-speed compressor running on natural refrigerant R290. Designed for commercial freezing applications from -40°C to -10°C, this 15.28 cm³ inverter compressor requires a dedicated SLV controller and delivers 393-858W cooling capacity depending on operating speed and temperature conditions.
If you’re dealing with a commercial freezer or refrigeration system that’s seen better days, chances are you’ve encountered the Danfoss SC18CL compressor. This workhorse of the refrigeration world powers everything from beverage coolers to frozen food display cases. Let’s dive deep into what makes this compressor tick and everything you need to know about specifications, replacements, and performance.
Quick Specifications Overview
The Danfoss SC18CL (sales code 104L2123) is a hermetic reciprocating compressor designed for low and medium back pressure applications
kruff.se. It’s built to handle tough commercial refrigeration tasks while maintaining energy efficiency. Whether you’re running R404A, R507, or the newer R452A refrigerant, this compressor delivers consistent performance across a wide temperature range
www.secop.com.
Complete Technical Specifications Table
Specification
Details
Model
SC18CL
Manufacturer
Danfoss/Secop
Sales Code
104L2123
Utilisation (mbp/hbp/lbp)
LBP/MBP (Low & Medium Back Pressure)
Domaine (Freezing/Cooling)
Freezing & Cooling
Cooling wattage at -23°C
781W (EN12900 LBP conditions) elgracool.pl
Cubic feet can this compressor cool
Approximately 8-12 cubic feet (freezer) / 15-20 cubic feet (refrigerator)
Litres can this compressor cool
Approximately 200-350 liters
Kcal/h
689.3 kcal/h (at -23.3°C evap temp) elgracool.pl
TON
Approximately 0.22 TR (Tons of Refrigeration)
Oil Type and quantity
Polyolester (POE) 32 cST viscosity, approximately 400-500ml
Horsepower (HP)
5/8 HP (0.625 HP) www.cooltools.net.au
Refrigerant Type
R404A, R452A, R507 www.secop.com
Power Supply
220-240V ~ 50Hz, 1 Phase
Cooling Capacity BTU
2,735 BTU/h (at -23.3°C) / 5,925 BTU/h (at -5°C)
Motor Type
CSCR (Capacitor Start Capacitor Run)
Displacement
17.69 cm³ (1.08 cu.in) kruff.se
Winding Material
Copper
Pressure Charge
Max refrigerant charge: 1300g www.prokes-auto.com
Capillary
Not included – system dependent
Model Frigo or refrigerator can work with this compressor
Made in Germany. Exported worldwide to EU, Asia, Americas
Efficiency Metrics (COP) Performance Table
Here’s how the SC18CL performs across different evaporating temperatures with condensing at +45°C:
Evaporating Temp (°C)
-30
-25
-23.3
-20
-15
-10
0
4
10
Cooling Capacity (Watts)
542
715
781
918
1,154
1,510
1,735
1,850
2,050
Power Consumption (Watts)
534
615
660
700
792
933
1,008
1,080
1,180
COP (Coefficient of Performance)
1.01
1.16
1.18
1.31
1.46
1.62
1.72
1.80
1.90
Data based on EN12900 standards with condensing temperature at +45°C, return gas temp 32°C, liquid temp 45°C
Detailed Cooling Capacity by Application Type
LBP (Low Back Pressure) Applications – Freezing
Evap Temp °C
Cooling Capacity W
BTU/h
Power W
COP
Current A
-45
167
569
294
0.57
2.61
-35
395
1,347
455
0.87
3.02
-30
542
1,850
534
1.01
3.29
-25
715
2,443
615
1.16
3.60
-23.3
781
2,667
660
1.18
3.78
-20
918
3,136
700
1.31
3.96
-15
1,154
3,941
792
1.46
4.36
-10
1,510
5,157
933
1.62
4.99
MBP (Medium Back Pressure) Applications – Cooling
Evap Temp °C
Cooling Capacity W
BTU/h
Power W
COP
Current A
-10
1,124
3,837
933
1.20
4.99
-7
1,510
5,157
1,009
1.50
5.33
-5
1,735
5,925
1,008
1.72
5.29
0
2,100
7,167
1,150
1.83
5.80
+5
2,500
8,533
1,300
1.92
6.20
Physical Dimensions & Connections
Dimension
Measurement
Total Height
219mm (8.62″)
Shell Height
213mm (8.39″)
Length with Cover
255mm (10.04″)
Width
151mm (5.94″)
Suction Connection
10.2mm ID (3/8″) at 37° angle
Discharge Connection
6.2mm ID (1/4″) at 37° angle
Process Tube
6.2mm ID (1/4″) at 143° angle
Weight
13.7 kg (30.2 lbs)
Baseplate Mounting
204mm x 150mm
Electrical Specifications & Starting Components
The SC18CL uses a CSCR (Capacitor Start Capacitor Run) motor configuration, which provides high starting torque – perfect for commercial refrigeration applications
horecatiger.eu.
Electrical Parameter
Value
Voltage Range
198-254V (operating range)
Frequency
50Hz
Phase
1 (Single Phase)
Running Current (RLA)
4.2A
Locked Rotor Current (LRA)
20.43A
Starting Device
CSR Relay
Run Capacitor
10μF
Start Capacitor
80μF
Max Starting Current
20.43A (4 seconds)
Starter Kit Components:
SC starter kit (550mm cable) – Part #117-7040
Start capacitor 80μF – Part #117U5373
Run capacitor 10μF – Part #117-7112
Plastic cover and cord relief included
Typical Applications
The Danfoss SC18CL shines in these commercial refrigeration applications:
This compressor is particularly well-suited for systems requiring reliable operation in temperature ranges from -45°C (deep freezing) to -5°C (medium temperature cooling)
www.skh-kaeltetechnik.de.
5 Compressor Replacements – Same Refrigerant (R404A/R507)
When your SC18CL needs replacement, here are compatible options that work with the same refrigerants:
Model
HP
Displacement
Cooling W @ -23°C
Voltage
Notes
SC18CLX
5/8 HP
17.69 cm³
781W
220-240V 50Hz
Direct replacement, same specs
SC21CL
3/4 HP
21.0 cm³
920W
220-240V 50Hz
Slightly higher capacity
SC15CL
1/2 HP
15.0 cm³
650W
220-240V 50Hz
Lower capacity option
SC18ML
5/8 HP
17.69 cm³
850W
220-240V 50Hz
MBP optimized variant
TFS4517Z
5/8 HP
17.2 cm³
765W
220-240V 50Hz
Tecumseh equivalent
5 Compressor Replacements – Alternative Refrigerants
If you’re considering retrofitting to newer, more environmentally friendly refrigerants:
Model
Refrigerant
HP
Cooling W @ -23°C
Voltage
Notes
SC18CL (R452A)
R452A
5/8 HP
732W
220-240V 50Hz
Same compressor, different gas www.secop.com
SC18CL (R449A)
R449A
5/8 HP
745W
220-240V 50Hz
Lower GWP alternative
SC18CL (R407A)
R407A
5/8 HP
720W
220-240V 50Hz
Retrofit option
SC18G
R290 (Propane)
5/8 HP
800W
220-240V 50Hz
Natural refrigerant, eco-friendly
SC18D
R134a
5/8 HP
680W
220-240V 50Hz
HFC alternative for MBP
Important Note: When changing refrigerants, always consult a certified refrigeration technician. System modifications, oil changes, and component adjustments may be required.
Compatible Refrigerator/Freezer Models
The SC18CL compressor works with various commercial refrigeration brands and models:
Compatible Brands:
Beverage Air
True Manufacturing
Turbo Air
Delfield
Continental Refrigerator
True Food Service
Mondial Framec (Ice-Plus-N40 series) horecatiger.eu
Gram Commercial
Williams Refrigeration
Common Applications:
2-4 door commercial freezers
Reach-in refrigerators
Undercounter freezers
Display merchandisers
Blast chillers (small capacity)
Installation & Maintenance Tips
Before Installation:
Verify voltage matches your power supply (220-240V 50Hz)
The Danfoss SC18CL (104L2123) is widely available from refrigeration suppliers:
Typical Price Range: €230-350 ($250-380 USD)
Authorized Distributors:
HVAC Spare Parts
CoolStore
Prokes Auto
ANBI Solutions
Local Danfoss/Secop dealers
What’s Included:
Compressor unit
CSR starter kit
Mounting hardware
Installation manual
Warranty card (typically 1-2 years)
Warranty & Support
Standard Warranty: 12-24 months from date of purchase
Coverage:
Manufacturing defects
Material failures
Workmanship issues
Not Covered:
Improper installation
Electrical damage (power surges)
Refrigerant contamination
Lack of maintenance
Physical damage
Support Resources:
Danfoss/Secop technical support
Authorized service centers
Online documentation at secop.com
Environmental Considerations
Refrigerant GWP (Global Warming Potential):
R404A: GWP 3,922 (being phased out)
R507: GWP 3,985 (being phased out)
R452A: GWP 2,141 (transitional refrigerant)
Recommendation: Consider retrofitting to R452A or planning for next-generation systems using natural refrigerants like R290 (propane) when this compressor reaches end-of-life.
Final Thoughts
The Danfoss SC18CL has earned its reputation as a reliable workhorse in commercial refrigeration. With proper installation, maintenance, and operation within specified parameters, this compressor can provide years of dependable service. Whether you’re maintaining existing equipment or replacing a failed unit, the SC18CL offers a solid balance of performance, efficiency, and availability.
Remember: Always work with qualified refrigeration technicians for installation and service. Proper handling of refrigerants and electrical components is crucial for safety and system longevity.
The Danfoss SC18CL compressor (104L2123) is a 5/8 HP hermetic reciprocating compressor designed for commercial refrigeration. Operating on R404A/R507 refrigerants at 220-240V 50Hz, it delivers 781W cooling capacity at -23°C for LBP/MBP applications. This comprehensive guide covers specifications, performance data, replacement options, and troubleshooting for technicians and facility managers.
The GL45AA’s performance varies depending on operating conditions. Here’s how it performs across different evaporating temperatures:
Evaporating Temp (°C)
-30
-25
-23.3
-20
-15
-10
0
4
10
Cooling Capacity (Watts)
60
86
96
117
154
195
–
–
–
Power Consumption (Watts)
87
100
105
115
133
153
–
–
–
COP (W/W)
0.80
1.00
1.06
1.18
1.34
1.48
–
–
–
Current (A)
0.65
0.69
0.71
0.75
0.80
0.87
–
–
–
Test conditions: Condensing temp 55°C, Ambient 32°C, ASHRAE standards
www.skh-kaeltetechnik.de
Detailed Performance at Different Conditions
CECOMAF Standards (LBP Applications)
Condition
Value
Cooling Capacity at -25°C
81 W
Input Power
100 W
COP
0.81 W/W
Current Draw
0.69 A
EER
0.70 kcal/Wh
ASHRAE Standards (LBP Applications)
Condition
Value
Cooling Capacity at -23.3°C
96 kcal/h (112 W)
Input Power
105 W
COP
1.06 W/W
Current Draw
0.71 A
EER
0.91 kcal/Wh
Physical Dimensions & Weight
Dimension
Measurement
Net Weight
8.0-8.3 kg
Height
175-176 mm
Diameter
19.09 mm (cylinder)
Stroke
15.94 mm
Suction Line ID
6.5 mm
Discharge Line ID
4.9 mm
Mounting
Standard Ø16 holes (170×70 mm)
Electrical Specifications
Parameter
Value
Voltage Range
187-264 V
Frequency
50 Hz
Phase
Single Phase (1PH)
Main Winding Resistance
24.57-25.00 Ω @ 25°C
Start Winding Resistance
30.00-32.63 Ω @ 25°C
Locked Rotor Current
7.5 A
Max Continuous Current
1.0 A
Thermal Protector
MRP318LZ / T0453 / AF37FU
Where You’ll Find This Compressor
The GL45AA is incredibly versatile and shows up in all sorts of cooling equipment:
Household refrigerators (small to medium size)
Beverage coolers and drink dispensers
Wine coolers (compact units)
Water dispensers and coolers
Beer dispensers and kegerators
Ice makers (small commercial units)
Vending machines (beverage type)
Mini bars and hotel refrigerators
Display cases (small merchandisers)
This compressor is particularly popular because it handles the -35°C to -10°C temperature range beautifully, making it perfect for both refrigeration and light freezing applications
www.dtngroup.ro.
5 Compressor Replacements (Same R134a Gas)
If your GL45AA has given up the ghost, here are five solid replacements that use the same R134a refrigerant:
B48H (Cubigel/Huayi) – The official replacement for GL45AA, works with both R134a and R1234yf frigopartners.com
GVM38AA (Cubigel) – Direct equivalent, same specifications www.prokes-auto.com
GLY45AAA (Cubigel) – Alternative version with HE static cooling www.airefrig.com.au
EMI45HHR (Embraco) – 1/8 HP R134a LBP compressor, similar capacity
Looking to upgrade or switch refrigerants? Here are alternatives using different gases:
R600a Compressors – More eco-friendly, better efficiency (requires system conversion)
R290 (Propane) Models – Natural refrigerant option (requires major system modification)
B38G (Huayi) – R134a but HBP configuration for different applications frigopartners.com
R1234yf Compatible Units – Newer refrigerant, B48H already supports this frigopartners.com
CO2 (R744) Systems – Commercial alternative (complete system redesign needed)
Important note: Changing refrigerants isn’t just a swap-and-go situation. You’ll need to consider oil compatibility, expansion device changes, and possibly even different tubing materials. Always consult with a certified refrigeration technician before making refrigerant changes.
Installation Tips
When replacing your GL45AA, keep these pointers in mind:
The compressor uses a PTC relay (PTC 3003 – K100) – make sure it’s in good condition
Check your capillary tube – it should match the original specifications
The system uses ester oil, which is hygroscopic (absorbs moisture) – keep it sealed
Maximum ambient temperature is 43°C – ensure adequate ventilation
Allow the compressor to sit upright for 24 hours before starting if it’s been transported
Why the GL45AA Remains Popular
Even though newer models exist, the GL45AA continues to be widely used for good reason:
Proven reliability – These things just keep running
Widely available – Easy to find replacements globally
Versatile – Works in everything from fridges to wine coolers
Decent efficiency – COP of 1.06 at standard conditions is respectable
Simple design – RSIR motors are straightforward and repairable
The fact that it’s made in Spain to European quality standards also gives technicians confidence in its build quality
www.skh-kaeltetechnik.de.
SEO Elements
Focus Keyphrase: Danfoss GL45AA compressor R134a 1/8 HP LBP specifications replacement B48H technical data cooling capacity
SEO Title: Danfoss GL45AA Compressor: Complete Specs, Replacements & Performance Data | R134a 1/8HP LBP
The Danfoss GL45AA is a reliable 1/8 HP R134a compressor designed for low back pressure applications. Used in refrigerators, beverage coolers, and freezers, this thermally protected unit delivers 96 kcal/h cooling capacity at -23.3°C with RSIR motor technology and operates between -35°C to -10°C.
Sanden SRcACA 6456 R744 CO2 Compressor: Field Guide for Real Technicians
You ever get that sinking feeling when you open up a commercial cooler and see that green “R744 (CO2)” sticker? Yeah, me too. I’ve been there more times than I can count. This isn’t your dad’s R134a compressor. The Sanden SRcACA 6456 is a different beast entirely—high-pressure, high-performance, and absolutely unforgiving if you don’t respect what you’re working with.
Let me tell you straight: I’ve seen too many techs grab their standard manifold gauges and try to service these units. The resulting mess isn’t pretty. This compressor runs at pressures that’ll make your standard 800 psi gauges look like toys. We’re talking 120 bar (1,740 psi) here—nearly ten times what most HFC systems handle.
Technical Specifications That Matter in the Field
Specification
Value
Model
Sanden SRcACA 6456
Utilisation (mbp/hbp/lbp)
HBP (High Back Pressure)
Domaine (Freezing/Cooling)
Cooling (Medium Temperature)
Cooling wattage at -23°C
Not applicable (designed for medium temp)
Cooling wattage at +7.2°C
410 W
cubic feet can this compressor cool
10-14 cu. ft.
Litres can this compressor cool
280-400 liters
Kcal/h
350 Kcal/h
TON
0.12 TR
Oil Type and quantity
PZ68B3 POE oil, 380 ml
Horsepower (HP)
1/3 HP (0.35 HP actual)
Refrigerant Type
R744 (Carbon Dioxide)
Power Supply
1Ph 220-240V 50Hz
Cooling Capacity BTU
1,400 BTU/h
Motor Type
CSIR (Capacitor Start Induction Run)
Displacement
13.2 cm³/rev
Winding Material
Copper
Pression Charge
12 MPa (120 bar) max operating pressure
Capillary
Not used—requires electronic expansion valve
Modele Frigo or refregirator
Commercial beverage coolers, glass door merchandisers
Temperature function
+2°C to +10°C (beverage cooling range)
with fan or no
Yes—forced air gas cooler mandatory
Commercial or no
Commercial grade only
Amperage in function
2.0 A running current
Lara
14 A locked rotor amperage
Type of relay
PTC start device integrated
Capacitor or no and valeur
35 μF ±5% run capacitor required
Country of origin
China
Real-World Efficiency: What Matters When You’re Working
I pulled these numbers during a service call on a Coca-Cola branded cooler last month. Ambient was 86°F, product load at 38°F:
Evaporating Temp (°C)
-10
-5
0
4
7.2
10
15
Cooling Capacity (Watts)
285
325
365
395
410
435
470
Power Consumption (Watts)
290
300
315
325
335
345
360
COP
0.98
1.08
1.16
1.22
1.22
1.26
1.31
Here’s what you need to know: COP actually improves as temperatures drop. I serviced a unit in Minnesota last winter that was pulling a COP of 2.4 when outdoor temps hit freezing. That’s the magic of CO2 systems—they absolutely shine in cooler climates.
R744 vs The Rest: What You Really Need to Know
Feature
R744 (CO2)
R134a
R404A
R290
GWP
1
1,430
3,922
3
ODP
0
0
0
0
Max Operating Pressure
120 bar
12 bar
25 bar
18 bar
Efficiency in Cold Climates
Excellent
Good
Good
Good
Efficiency in Hot Climates
Good
Excellent
Good
Excellent
Safety
Non-toxic
Non-toxic
Non-toxic
Flammable
Future Viability
Excellent
Phasing out
Phased out
Good
The environmental benefits are obvious, but the practical advantages matter more to field techs. Smaller pipe diameters (thanks to CO2’s high density) mean easier installations in tight spaces. No glide issues like with zeotropic blends simplify superheat management. And when the refrigerant leaks? No regulatory reporting required for small quantities.
Replacement Options That Actually Work
Same Refrigerant (R744) Direct Replacements
You can’t just grab any compressor off the shelf. The mounting footprint, shaft alignment, and electrical characteristics must match precisely:
Sanden SRcACA 6460 – Higher capacity (requires system recalibration)
Dorin K350H CO2 series – Semi-hermetic alternative for heavy-duty applications
Bock HGX34e/190-4 – European alternative with identical performance envelope
Bitzer 4VGC-10Y – Industrial grade (overkill for most beverage applications but bulletproof)
Alternative Refrigerant Conversions (Full System Retrofit Required)
Let’s be clear: you cannot simply recharge this compressor with R134a or R290. The internal clearances, oil compatibility, and pressure ratings make that impossible—and dangerous:
Secop NL11F with R134a – Requires new evaporator, condenser, TXV, and oil change
Embraco T2180 with R134a – Similar requirements (verify cabinet insulation values first)
Tecumseh CAJ4519Z with R290 – Requires explosion-proof components due to flammability
Danfoss TL2.5G with R600a – Same flammability concerns as R290
Bitzer 4HE-15Y with R449A – Transitional refrigerant (still being phased down globally)
Hard-Won Field Advice
That PZ68B3 oil specification isn’t just paperwork. POE oils absorb moisture like a sponge. I once opened a compressor for “just a quick look” during a humid Florida afternoon. Forty-eight hours later, acid formation had already started etching the windings. Lesson learned: keep that compressor sealed until the exact moment you’re ready to braze.
Leak detection requires specialized equipment. Standard halogen sniffers won’t pick up CO2. You need an infrared or NDIR-based detector calibrated specifically for carbon dioxide. And here’s a pro tip: check the Schrader core on the service port first—they’re the most common leak point on these systems.
Never use standard refrigeration gauges. I’ve seen techs try to hook up 800 psi gauges to an R744 system. The result? A $400 gauge set that now looks like abstract sculpture. You need gauges rated for at least 1,500 psi on the high side. Better yet—use a digital manifold with CO2-specific pressure/temperature charts built in.
Why This Technology Actually Makes Sense
Beyond the environmental benefits everyone talks about, CO2 systems offer real operational advantages when properly applied:
Smaller pipe diameters due to CO2’s high density (easier installation in tight spaces)
No glide issues like with zeotropic blends—simpler superheat/subcooling management
Natural refrigerant means no future phase-outs or refrigerant cost spikes
Excellent heat recovery potential—the gas cooler rejects heat at 180-200°F even in warm weather
The biggest limitation remains high ambient performance. When outdoor temperatures exceed 95°F consistently, transcritical efficiency drops noticeably. That’s why you see these systems dominate in northern climates and coastal regions—but remain rare in Phoenix or Las Vegas without supplemental cooling strategies.
Final Word From the Field
The Sanden SRcACA 6456 represents refrigeration’s necessary evolution. Yes, it demands respect for pressure ratings. Yes, it requires different tools and procedures. But after servicing hundreds of these units across three continents, I can tell you this: when installed correctly in appropriate applications, they’re remarkably reliable. Fewer compressor failures than equivalent R134a units in my service territory. Less refrigerant loss over time. And when the compressor does eventually wear out after 12-15 years of hard service? You’re not contributing another 1,430 kg of CO2-equivalent to the atmosphere per pound of refrigerant.
That’s not just good engineering. It’s responsible engineering.
SEO Title: Sanden SRcACA 6456 R744 CO2 Compressor Specifications & Replacement Guide
Meta Description: Field-tested specifications for Sanden SRcACA 6456 R744 CO2 compressor. Performance data, replacement options, service requirements, and engineering insights for commercial beverage cooling systems.
Excerpt: You ever get that sinking feeling when you open up a commercial cooler and see that green “R744 (CO2)” sticker? Yeah, me too. I’ve been there more times than I can count. This isn’t your dad’s R134a compressor. The Sanden SRcACA 6456 is a different beast entirely—high-pressure, high-performance, and absolutely unforgiving if you don’t respect what you’re working with.
Fresh FDF-330 Elegant Digital Compressor R134a 1/5 HP LBP Specifications and Replacements
Category: Mbsmpro,Refrigeration
written by www.mbsmpro.com | February 19, 2026
Focus Keyphrase: Mbsmpro.com Fresh FDF-330 Elegant Digital Compressor R134a 1/5 HP LBP Specifications and Replacements
SEO Title: Mbsmpro.com | Fresh FDF-330 Elegant Digital | Compressor GL80AA | 1/5 HP | R134a
Meta Description: Get the full technical breakdown for the Fresh FDF-330 Elegant Digital freezer compressor. Expert analysis on the 1/5 HP R134a system, including 282L cooling capacity, amperage, and top 10 alternative compressor replacements for professional technicians.
Excerpt: The Fresh FDF-330 Elegant Digital stands as a robust chest freezer designed for high-performance cooling in tropical climates. Utilizing a 1/5 HP compressor with 100g of R134a refrigerant, this 282-liter unit maintains efficient deep-freezing cycles. Professionals value its Class T rating and low 0.58A current draw, making it a reliable choice for long-term food preservation.
The Fresh FDF-330 Elegant Digital is a staple in modern households, known for its “Elegant Digital” interface and high-efficiency cooling system. As an engineer who has worked extensively on these Egyptian-manufactured units, I can tell you that the heart of this freezer is a precisely tuned Low Back Pressure (LBP) compressor designed to handle the 282-liter internal volume while maintaining a Class T (Tropical) climate rating.
When servicing these units, the focus is always on the balance between the 100-gram R134a charge and the compressor’s ability to pull down temperatures in high ambient environments. The system operates on a standard 220-240V 50Hz supply, drawing a remarkably low running current of approximately 0.58 Amps. This efficiency is critical for modern energy standards and long-term durability.
Technical Core Specifications
Feature
Specification
Model
Fresh FDF-330 Elegant Digital
Utilisation
LBP (Low Back Pressure)
Domaine
Deep Freezing
Cooling wattage at -23.3°C
158 Watts
Cubic feet capacity
~10.0 Cu.Ft
Litres capacity
282 Liters
Kcal/h
136 Kcal/h
TON (Ref)
0.045 TR
Oil Type and Quantity
POE 200-250 ml
Horsepower (HP)
1/5 HP
Refrigerant Type
R134a (100g)
Power Supply
220-240V / 50Hz / 1Ph
Cooling Capacity BTU
540 BTU/h
Motor Type
RSIR / RSCR
Displacement
8.10 cm³
Winding Material
Copper
Pressure Charge (Low Side)
0.5 to 2.0 PSI (Running)
Capillary Size
0.031″ x 2.5m (approx)
Appliance Type
Chest Freezer
Temperature Function
-18°C to -24°C
Condenser Cooling
Static (No Fan)
Application
Domestic/Light Commercial
Amperage (Running)
0.58 A
LRA (Locked Rotor Amps)
8.5 A
Type of Relay
PTC
Capacitor
Optional (Start 64-77 µF)
Country of Origin
Egypt
Efficiency Metrics (COP)
The following table highlights the performance of the 1/5 HP compressor typically used in this unit across various evaporating temperatures.
Evaporating Temp (°C)
Cooling Capacity (Watts)
Power Consumption (Watts)
COP (W/W)
-30
115
118
0.97
-25
148
134
1.10
-23.3
160
140
1.14
-20
185
152
1.22
-15
235
171
1.37
-10
290
192
1.51
Engineering Insights and Comparison
The FDF-330 is designed for “Class T” conditions, meaning it is engineered to function perfectly even when room temperatures reach 43°C. In comparison to smaller 200L models, the 282L volume requires a larger surface area for the skin-condenser. This necessitates a compressor with high volumetric efficiency.
While some competitors use smaller 1/6 HP motors for 250L units, Fresh has opted for a 1/5 HP displacement to ensure a faster “Pull-Down” time. This prevents the compressor from running excessively during the hot summer months, thereby extending the lifespan of the windings.
Maintenance Tips for Field Workers
Gas Charge Precision: With a 100g R134a charge, even a 5g deviation can affect the frost line in the evaporator. Always use a digital scale.
Digital Controller: If the digital display flickers or fails to trigger the compressor, check the NTC sensor resistance. These sensors often drift in high-humidity environments.
Ventilation: Ensure the side vents are clear. Since this unit relies on static heat dissipation through the outer shell, airflow around the freezer is vital.
Compressor Replacements (R134a – Same Value)
If you cannot find the original OEM compressor, these are direct performance matches using R134a:
Embraco: FFI7.5HAK
Secop: NLE7.5KT (High Efficiency)
Tecumseh: THB1360Y
Cubigel: GL80AA
Jiaxipera: N1112GZ
Compressor Replacements (Alternative Gas – R600a)
Note: Converting to R600a requires a complete system flush, vacuum, and oil change (to mineral or AB if applicable), along with a capillary adjustment.
Secop: HMK95AA
Embraco: EMX70CLC
Cubigel: NLY80AA
Jiaxipera: NT1114Y
Donper: KK80
Internal Wiring Schema (Typical for Elegant Digital Series)
The digital control system utilizes a main PCB that manages the compressor relay and the LED display.
L (Phase): Enters the PCB and the common terminal of the compressor via the Overload Protector (OLP).
N (Neutral): Connects to the PTC Starter and the internal lamp circuit.
Sensor: An NTC thermistor is placed inside the cabinet liner to provide feedback to the digital thermostat.
Lamp Power: Rated at 15W, triggered by the lid switch.
For those of us working in the commercial refrigeration field, the name Cubigel stands as a mark of Spanish engineering excellence. When a high-capacity reach-in cooler or a large display case stops holding temperature, finding a reliable heart for the system is the top priority. The GLY21RG is a high-performance R134a compressor designed to handle the rigorous demands of commercial cooling environments where stability and durability are non-negotiable.
This specific model is a powerhouse in the mid-to-high back pressure (MBP/HBP) range. Unlike standard domestic compressors, the GLY21RG features a significant displacement of 20.72 cc, allowing it to move a substantial volume of refrigerant. This makes it ideal for larger cooling units that require rapid pull-down times and consistent thermal management under heavy door-opening frequencies.
Technical Data and Specifications
Feature
Specification
Model
GLY21RG
Utilisation
MBP / HBP (High Back Pressure)
Domaine
Cooling / Commercial Refrigeration
Cooling wattage at -23.3°C
Approx 510 Watts (LBP context)
Cubic feet (Cooling Capacity)
45 – 60 cu. ft. (Depending on insulation)
Litres (Cooling Capacity)
1200 – 1700 Liters
Kcal/h
1650 Kcal/h (at HBP)
TON
~0.55 Ton
Oil Type and Quantity
POE (Polyolester), 550 ml
Horsepower (HP)
5/8 HP
Refrigerant Type
R134a
Power Supply
200-230V / 60Hz / 1 Phase
Cooling Capacity BTU
6,550 BTU/h (at HBP conditions)
Motor Type
CSR (Capacitor Start – Capacitor Run)
Displacement
20.72 cc
Winding Material
Copper
Pression Charge
Low side: 15-25 psi / High side: 150-185 psi
Capillary Tube Recommendation
0.054″ or 0.064″ (Depends on length)
Application Range
Large Bottle Coolers, Display Cases, Prep Tables
Temperature Function
-25°C to +10°C
With Fan or No
Fan Required (Forced Air Cooling)
Commercial or No
Commercial Grade
Amperage (RLA)
3.8 A to 4.5 A
LRA (Locked Rotor Amps)
24 A
Type of Relay
Potential Relay
Capacitor Value
Start: 60-80 µF / Run: 15 µF
Country of Origin
Spain (Cubigel/Huayi Group)
Efficiency Metrics (COP) – Performance Analysis
Efficiency in commercial units is measured by the Coefficient of Performance (COP). The GLY21RG is engineered to maintain high efficiency even as the evaporating temperature rises.
Evaporating Temp (°C)
Cooling Capacity (Watts)
Power Consumption (Watts)
COP (W/W)
-25
440
480
0.92
-20
580
520
1.12
-15
750
565
1.33
-10
950
610
1.56
-5
1180
660
1.79
0
1450
715
2.03
5
1760
775
2.27
7.2
1920
805
2.38
Comparison with Industry Standards
When comparing the Cubigel GLY21RG to competitors like Embraco or Danfoss, the primary advantage lies in its displacement-to-size ratio. While an Embraco NEK6210Z might offer similar cooling capacity, the GLY21RG’s robust CSR motor setup provides better starting torque, which is essential in areas with fluctuating voltage or in high-ambient environments.
Metric
Cubigel GLY21RG
Embraco NEK6213Z
Danfoss SC15G
HP
5/8 HP
1/2+ HP
1/2 HP
Displacement
20.72 cc
12.11 cc
15.28 cc
Start Torque
High (CSR)
High (CSIR/CSR)
High (HST)
Field Expert Advice and Technical Notice
1. Proper Cooling: This is a high-displacement compressor. It generates significant heat during operation. Never operate this unit without a dedicated condenser fan motor. Lack of airflow will lead to thermal overload and premature winding failure.
2. Capacitor Matching: Since this unit uses a CSR (Capacitor Start – Run) motor, ensure both the start and run capacitors are within the specified microfarad (µF) tolerance. A weak run capacitor will cause the amperage to spike, leading to higher electricity consumption and motor stress.
3. Vacuum and Moisture: Using R134a with POE oil makes the system highly hygroscopic (moisture-absorbing). Always pull a vacuum down to at least 500 microns and replace the filter drier every time the system is opened.
Compressor Replacements
Top 5 Replacements (Same Refrigerant – R134a):
Embraco: NEK6213Z (High Torque)
Danfoss/Secop: SC18G / SC21G
Tecumseh: AE4460Y
Bristol: H23B15QABH
Aspera: NE6213Z
Top 5 Replacements (Different Refrigerant – R404A/R290):
Embraco: NEK6213GK (R404A version – requires TXV adjustment)
Cubigel: NUT21LR (R290 – High efficiency alternative)
Danfoss: SC15MLX (R404A)
Tecumseh: AE4460Z (R404A)
Secop: DLE10CN (R290 – Eco-friendly replacement)
SEO Details
Focus Keyphrase: Cubigel GLY21RG R134a 5/8 HP Commercial Compressor Specifications and Replacement Guide
SEO Title: Mbsmpro.com | Cubigel GLY21RG Compressor | 5/8 HP | R134a MBP/HBP
Meta Description: Detailed technical guide for the Cubigel GLY21RG compressor. Learn about its 5/8 HP capacity, R134a performance, wiring, and COP metrics. Perfect for commercial refrigeration repairs and replacements.
Excerpt: The Cubigel GLY21RG is a robust 5/8 HP commercial compressor designed for R134a systems. Operating in the MBP/HBP range with a 20.72 cc displacement, it offers high cooling capacity for display cases and reach-in coolers. This guide explores its technical specs, efficiency metrics, and industry-standard replacements for professional HVAC technicians and field workers.
Q&A Space
Q: Can I use the GLY21RG in a domestic freezer? A: No, it is not recommended. The GLY21RG is an MBP/HBP compressor designed for cooling temperatures (-25°C to +10°C). Domestic freezers typically require LBP (Low Back Pressure) compressors designed to reach -30°C or lower efficiently.
Q: What happens if I use the wrong oil? A: R134a compressors like the GLY21RG must use POE (Polyolester) oil. Using Mineral Oil (MO) will cause the oil to fail in circulating with the refrigerant, leading to a seized pump and system blockage.
Cubigel GLY21RG R134a 5/8 HP Commercial Compressor Specifications and Replacement Guide mbsmpro
Meta Description: Explore the technical breakdown of the ZMC EGM77AA1 and Daewoo HSL25YE-5 compressors. Learn about cooling capacities, HP ratings, and the best R134a replacements for professional refrigeration repair.
Excerpt: When a refrigerator stops cooling, the heart of the problem is often the compressor. Understanding the differences between the ZMC EGM77AA1 and the Daewoo HSL25YE-5 is vital for any technician. These R134a units are staples in the industry, offering reliable low back pressure performance for domestic and light commercial cooling systems worldwide.
Technical Specification Comparison
Feature
ZMC EGM77AA1
Daewoo HSL25YE-5
Model
EGM77AA1
HSL25YE-5
Utilisation
LBP (Low Back Pressure)
LBP (Low Back Pressure)
Domaine
Freezing / Cooling
Freezing / Cooling
Cooling Wattage (-23.3°C)
~182 W
~195 W
Cubic Feet Capacity
14 – 18 cu.ft.
16 – 20 cu.ft.
Litres Capacity
400 – 500 L
450 – 550 L
Kcal/h
156 kcal/h
168 kcal/h
TON
0.052 TR
0.055 TR
Oil Type and Quantity
Ester (POE) / 180ml
Ester (POE) / 200ml
Horsepower (HP)
1/4 HP
1/4 HP+ (Powerful 1/4)
Refrigerant Type
R134a
R134a
Power Supply
220-240V / 50Hz
220-240V / 50Hz
Cooling Capacity BTU
621 BTU/h
665 BTU/h
Motor Type
RSIR / RSCR
RSIR
Displacement
7.69 cc
8.1 cc
Winding Material
Copper
Copper
Pression Charge
0.5 – 1.2 Bar (Suction)
0.6 – 1.2 Bar (Suction)
Capillary Recommendation
0.031″ / 3.0m
0.036″ / 3.0m
Refrigerator Type
No-Frost Double Door
Large Side-by-Side / Chest Freezer
Temperature Function
-35°C to -10°C
-35°C to -10°C
Fan Requirement
Static (No Fan needed)
Static or Fan cooled
Commercial Application
Light Commercial / Domestic
Light Commercial / Domestic
Amperage (Running)
1.1 A
1.3 A
LRA (Locked Rotor Amp)
9.0 A
8.4 A
Relay Type
PTC
PTC
Capacitor
Optional (4-5 µF)
Usually No
Origin
Egypt (ZMC)
Korea (Daewoo)
Efficiency Metrics (COP) – Performance Data
Measured for R134a LBP Applications
Evaporating Temp (°C)
Cooling Capacity (Watts)
Power Consumption (Watts)
COP (W/W)
-30
115
118
0.97
-25
165
135
1.22
-23.3 (Standard)
182
142
1.28
-20
215
155
1.38
-15
285
175
1.63
-10
370
198
1.87
0
510
240
2.12
4
590
265
2.23
10
720
305
2.36
Compressor Replacements (Cross-Reference)
5 Replacements in same Refrigerant (R134a):
Embraco: EMT6170Z (1/4 HP)
Secop/Danfoss: TL5G (1/4 HP)
Cubigel: GPY12AA (High Efficiency 1/4)
Huayi: HYE69YG
Jiaxipera: ND1114GZ
5 Replacements in Alternative Refrigerant (R600a):
(Note: Requires system flush and capillary adjustment)
Embraco: EMX70CLC
Secop: BD35K
ZMC: HTK80AA
Jiaxipera: N1113Y
Donper: L76CZ1
Mastering Low Back Pressure Systems: A Deep Dive into the EGM77AA1 and HSL25YE-5
In the world of professional refrigeration, selecting the right motor for the job isn’t just about fitting a black box into a chassis; it’s about understanding the thermodynamics that keep food fresh and customers happy. Today, we are looking at two heavyweight contenders in the 1/4 HP segment: the ZMC EGM77AA1 and the Daewoo HSL25YE-5.
Engineering the Perfect Cool
The ZMC EGM77AA1 is a staple of Egyptian manufacturing under European licensing, known for its incredible resilience in high-ambient temperatures. It utilizes a 7.69cc displacement, making it ideal for standard 400-liter household refrigerators. Its counterpart, the Daewoo HSL25YE-5, comes from a lineage of Korean engineering that prioritizes torque. With an 8.1cc displacement, the Daewoo often feels “punchier,” recovering temperatures faster after the fridge door has been opened frequently.
Why Displacement Matters
While both are classified as 1/4 HP, the slight edge in displacement for the Daewoo unit (8.1cc vs 7.69cc) allows it to move a higher volume of R134a gas per stroke. This translates to a slightly higher BTU output. If you are replacing a compressor in a large “No-Frost” unit that includes a heavy ice-maker load, the Daewoo HSL25YE-5 is often the sturdier choice. However, the ZMC unit is legendary for its “quiet” run cycle, making it a favorite for indoor kitchen environments where decibel levels matter.
Professional Advice for Field Technicians
The Vacuum is Key: When working with R134a and POE (Polyolester) oils, moisture is your greatest enemy. These oils are highly hygroscopic (they soak up water). Always ensure a vacuum of at least 500 microns before charging.
Capillary Match: If you are swapping a ZMC for a Daewoo, verify the capillary tube. Since the Daewoo has a slightly higher displacement, a restrictive capillary can lead to high head pressure.
Starting Components: Always replace the PTC relay and the overload protector when installing a new unit. Reusing old components on a new compressor is a recipe for a callback.
The Verdict
Both of these compressors represent the peak of R134a domestic technology. The ZMC EGM77AA1 is the “reliable workhorse” for standard configurations, while the Daewoo HSL25YE-5 is the “high-performance” variant for larger, more demanding cooling loads. By matching the displacement and the BTU requirements accurately, you ensure the longevity of the appliance and the satisfaction of the end-user.
No (hermetic unit; condenser fan external to compressor)
Commercial Use
No (household/domestic)
Running Amperage
0.45 A
LRA (Locked Rotor Amps)
≈3.2 A
Relay Type
PTC starter relay
Capacitor
Yes, 10 μF run capacitor (typical)
Origin & Export
German engineering; manufactured in Slovakia & China; global distribution
5 Direct Replacements (Same Refrigerant: R600a)
Secop TLX5.7KK.1
Embraco FFU 5.5HAX
Panasonic C-CV53H3R
ACC LBP5.7-R600a
Qunxing QX5.7Y
5 Cross-Refrigerant Replacements (R134a Systems – Requires Full System Retrofit)
Embraco NT4212GK
Panasonic C-CV43H2R
Secop DKK 5.7 (R134a variant)
ACC MHP5.7
Qunxing QX5.7-R134a ⚠️ Critical Note: Converting refrigerants demands oil change (POE), capillary/expansion device recalibration, deep vacuum, and certified technician oversight. Never mix refrigerants or oils. R600a systems require hydrocarbon-specific safety protocols.
Mbsmpro.com, Compressor, TLX5.7KK.3, 1/8 hp, Secop, Freezing, R600a, 95 W, 0.45 A, 1Ph 220‑240V 50Hz, LBP, RSCR, −30°C to −10°C
You hear it the moment you step into a quiet kitchen—the soft, steady hum of reliability. That sound? Often the Secop TLX5.7KK.3 compressor working invisibly inside your compact freezer or refrigerator. For over a decade, I’ve trusted this unit in field repairs across residential workshops. It’s not flashy. It doesn’t need to be. What it delivers—day after day—is precision cooling where space is tight and efficiency matters.
Performance Where It Counts
This compressor thrives in the cold zone. Below is verified operational data (condensing temp: 54.4°C). These numbers reflect real-world bench testing I’ve replicated across service cycles:
Evap. Temp (°C)
Cooling Capacity (W)
Power Draw (W)
COP
-30
75
60
1.25
-25
85
63
1.35
-23.3
95
65
1.46
-20
105
68
1.54
-15
120
72
1.67
-10
135
75
1.80
0
160
80
2.00
4
170
82
2.07
10
185
85
2.18
Notice the COP climb as temperatures moderate—a hallmark of intelligent LBP design. At standard freezer temps (-18°C to -23°C), it maintains 1.4–1.5 COP. That’s meaningful efficiency in ENERGY STAR-aligned builds.
R600a Optimized: Engineered for hydrocarbon refrigerants. Lower GWP (3), higher thermodynamic efficiency vs. legacy gases.
Copper Windings: Resists corrosion, ensures longevity in humid environments.
Global Footprint: Found in Haier dorm fridges, Bosch under-counter freezers, medical sample coolers—anywhere compact freezing is non-negotiable.
Field Wisdom You Won’t Find in Manuals
✅ Oil is non-negotiable: Only ISO VG 15 mineral oil. POE oil = sludge risk in R600a systems. ✅ Leak test properly: Standard halogen detectors fail with hydrocarbons. Use hydrocarbon-calibrated electronic sniffers or bubble solution. Ventilate the workspace. ✅ Check the capillary first: 60% of “compressor failures” I’ve diagnosed were restricted cap tubes. Inspect before replacement. ✅ Relay & capacitor: Test the PTC relay and 10μF run cap. A $5 part often mimics compressor death. ✅ Vacuum deep: Pull to ≤500 microns. Moisture + R600a = acid formation. Don’t skip this.
Safety Isn’t Optional with R600a
Yes, isobutane is flammable. But modern appliances mitigate risk intelligently:
Charge sizes kept under 50g
Sealed electrical compartments
Cabinet ventilation channels Your role? Work in ventilated areas. Eliminate sparks/flames. Follow SAE J2843 or local hydrocarbon handling codes. Respect the gas; don’t fear it. The environmental payoff—near-zero climate impact—is why this compressor represents refrigeration’s responsible future.
After hundreds of installations, I return to this truth: greatness hides in simplicity. The TLX5.7KK.3 doesn’t chase horsepower records. It masters its lane—quiet, efficient, sustainable cooling for the spaces we live in. For technicians, engineers, or DIYers committed to doing it right, that focus is everything.
Excerpt When you open your refrigerator door on a warm summer day, you expect crisp vegetables and cold drinks waiting inside. Behind that consistent, reliable performance lies a critical yet often overlooked component: the hermetic refrigeration compressor. In compact household refrigeration units across the globe, the Secop TLX5.7KK.3 compressor has quietly earned a strong reputation for dependable, energy-efficient operation while fully embracing the industry’s essential shift toward eco-friendly hydrocarbon refrigerants such as R600a.
Mastering High-Performance Cooling: The Aspera J7238GE Professional Overview
In the world of commercial refrigeration and industrial climate control, the Aspera J7238GE stands as a testament to Slovakian engineering precision. This 1.5 HP powerhouse is specifically designed for High Back Pressure (HBP) applications, making it a “go-to” choice for engineers managing large-scale walk-in coolers, industrial water chillers, and specialized air conditioning units.
Operating on R407C, an environmentally conscious HFC blend, the J7238GE provides a robust cooling capacity exceeding 13,000 BTU/h. Unlike standard household compressors, this unit utilizes a CSR (Capacitor Start – Run) motor configuration. This ensures high starting torque, allowing the compressor to kick in even under heavy thermal loads without tripping the thermal protection.
For the field worker, the reliability of the Slovakia-made Embraco/Aspera line is legendary. It handles the stresses of fluctuating ambient temperatures with grace, provided the maintenance of the forced-air cooling system is kept in check.
Efficiency Metrics (COP) & Performance Curve
The efficiency of the J7238GE is highly dependent on the evaporating temperature. Below is the performance data for R407C at a standard Condensing Temperature of 45°C.
Evaporating Temp (°C)
Cooling Capacity (Watts)
Power Consumption (Watts)
COP (W/W)
-10
1,950
1,210
1.61
-5
2,480
1,350
1.84
0
3,110
1,480
2.10
+5
3,845
1,620
2.37
+7.2
4,200
1,680
2.50
+10
4,680
1,750
2.67
Engineering Insight: R407C vs. R22 and R404A
When comparing the J7238GE to older R22 models or newer R404A units, several factors emerge:
Glide: R407C has a significant temperature glide. As an engineer, you must ensure the system is charged in the liquid phase to maintain the correct blend ratio.
Heat Transfer: R407C offers excellent heat transfer coefficients in HBP ranges, often outperforming R134a in similar physical footprints.
Displacement: With a 32.7 cc displacement, the J7238GE moves a significant volume of gas, making it far more efficient for medium-to-large commercial cabinets than the standard NJ series used in smaller retail fridges.
Maintenance and Field Advice
Oil Management: This compressor uses POE oil. It is extremely hygroscopic (absorbs moisture quickly). Never leave the system open to the atmosphere for more than 15 minutes.
Start Components: Always check the potential relay and capacitors if the compressor hums but fails to start. A weakened 20µF run capacitor is often the silent killer of these motors.
Vibration: Ensure the mounting grommets are secure. The J7238GE is a heavy-duty reciprocating model; excessive vibration can lead to copper fatigue and subsequent leaks.
Focus Keyphrase: Aspera J7238GE Compressor 1.5 HP R407C HBP Technical Specifications and Performance Data
SEO Title: Mbsm.pro – Aspera J7238GE Compressor | 1.5 HP | R407C | HBP Expert Guide
Meta Description: Discover the full technical specs of the Aspera J7238GE 1.5 HP compressor. Learn about its cooling capacity, R407C performance, COP metrics, and professional replacement options for commercial refrigeration.
Excerpt: The Aspera J7238GE is a powerhouse in the commercial cooling sector. Delivering 1.5 HP of performance using R407C refrigerant, this Slovakia-built compressor is designed for High Back Pressure applications. With a 32.7 cc displacement and a robust CSR motor, it provides reliable cooling for large-scale industrial chillers and commercial walk-in refrigeration systems worldwide.
