Focus Keyphrase: LG NS24LAEG Compressor Specs and Replacements
SEO Title: Mbsm.pro – LG NS24LAEG Compressor: 1/12 HP R134a Technical Guide
Meta Description: Looking for LG NS24LAEG specs? We break down this 1/12 HP R134a compressor including cooling capacity, wiring, origin, and exact drop-in replacement models.
Excerpt: The LG NS24LAEG is a compact 1/12 HP compressor built for R134a LBP systems. You’ll usually find this unit running small water dispensers and mini-fridges. Here is the raw technical data and field replacements.
Field Introduction
You see the LG NS24LAEG pulled out of small residential appliances like water dispensers, dorm fridges, and under-counter ice boxes. It is a strictly Low Back Pressure (LBP) pump running R134a. Rated right around 1/12 HP, it has a tiny 2.42 cc displacement. It is not built to handle heavy commercial loads. When this unit burns out or locks up, you need a low-capacity equivalent to prevent short-cycling or overpowering the OEM capillary tube.
Technical Specifications Table
Feature
Details
Model
NS24LAEG
Brand
LG
Application
LBP (Low Back Pressure)
Refrigerant
R134a
Displacement
2.42 cm³
Voltage
220-240V / 50Hz / 1Ph
Motor Type
RSIR (Resistance Start – Induction Run)
Cooling Capacity (-23.3°C)
44 W / 150 BTU/h
Horsepower (HP)
~1/12 HP
Input Power
76 W
Electrical & Origin Details
Relay Type: PTC Starting Relay (specifically the P220MC matching the RSIR motor).
Capacitor Needs: None. The RSIR motor configuration means no start or run capacitors are required.
Manufacturing Origin: Manufactured by LG Electronics Inc. in Korea.
Efficiency Metrics Table
Performance drops hard if you push an LBP pump outside its temperature envelope. Here is how the NS24LAEG runs across the standard low-temp spectrum.
Evaporating Temp (°C)
Cooling Capacity (Watts)
Power Consumption (Watts)
COP (W/W)
-35
22
52
0.42
-30
31
61
0.50
-25
41
72
0.56
-23.3
44
76
0.58
-20
55
83
0.66
-15
73
94
0.77
Drop-in Replacements
When you can’t source the exact LG NS24LAEG, you need a 1/12 HP, R134a LBP compressor with a displacement around 2.4 to 3.0 cc. Here are solid field equivalents:
Embraco EMY20CLC: A rock-solid 1/12 HP drop-in. Matches the LBP footprint and capillary demands perfectly.
Secop / Danfoss TL3G: Slightly larger displacement (3.13 cc) but throttles well for small fridges and dispensers.
Jiaxipera T1040Y: Common Chinese market equivalent. Easy to pipe in and matches the RSIR electrical setup.
Huayi HYB35YG: Standard replacement. Pulls similar wattage and fits exactly the same base plate.
GMCC SZ30C1J: Good alternative if you work heavily with Asian-manufactured appliance parts.
LG NS24LAEG Compressor Specs and Replacements mbsmpro
Excerpt (first 55 words): Two workhorse compressors power countless commercial refrigerators and household freezers worldwide. The Embraco EMT55HLC and Daewoo HSL19JE-5 both deliver 1/5 HP performance on R134a refrigerant in low back pressure applications. But their electrical designs, efficiency curves, and field service requirements differ significantly. Here is what technicians need to know.
Embraco EMT55HLC vs Daewoo HSL19JE-5: R134a LBP Compressor Deep Dive for Field Technicians
If you have ever stood in front of a silent commercial refrigerator with a failed compressor, you know the pressure of getting the replacement right the first time. Two models frequently appear on spec sheets and in parts catalogs for 1/5 HP, R134a, low back pressure applications: the Embraco EMT55HLC and the Daewoo HSL19JE-5. Both are proven designs. Both run on standard 220‑240V/50Hz single‑phase power. And both target the same cooling envelope. But that is where the similarities end.
This guide breaks down the technical realities field technicians face when evaluating these compressors. We cover verified specifications, performance curves across evaporating temperatures, electrical compatibility warnings, oil and refrigerant handling notes, and cross‑reference options that actually work in the field. No marketing fluff. Just the data you need to make a confident call.
EMT55HLC: Manufactured in China/Global (Embraco/Nidec); exported worldwide. HSL19JE-5: Originally Korea/Asia; exported to Europe, Middle East, Africa, Latin America
Efficiency Metrics: COP Across Evaporating Temperatures
Test conditions: Condensing temperature 54.4°C (130°F), subcooling 8.3°C, superheat 11.1°C, ambient 32°C. Values are representative; always consult the latest OEM datasheet for your batch.
Evaporating Temp (°C)
EMT55HLC Cooling (W)
EMT55HLC Power (W)
EMT55HLC COP
HSL19JE-5 Cooling (W)
HSL19JE-5 Power (W)
HSL19JE-5 COP
−30
48
42
1.14
41
44
0.93
−25
72
55
1.31
63
59
1.07
−23.3
85
60
1.42
75
65
1.15
−20
102
68
1.50
91
74
1.23
−15
128
82
1.56
115
91
1.26
−10
155
108
1.43
140
122
1.15
0
210
145
1.45
190
158
1.20
4
235
162
1.45
212
175
1.21
10
268
188
1.43
242
198
1.22
Note: COP = Cooling Capacity (W) ÷ Power Input (W). Embraco data sourced from Embraco APA Catalogue 2023
www.embraco.com and Longterm Elec verification www.longtermelec.com. Daewoo values interpolated from MBSM.pro archives fr.scribd.comwww.mbsm.pro and field measurements; actual performance varies with system design.
Why the Starting Method Matters: RSCR vs RSIR
One detail that trips up even experienced technicians: the starting circuit.
EMT55HLC uses RSCR (Resistor Start Capacitor Run). This design keeps a run capacitor in the circuit continuously. Result: smoother torque, lower inrush current, better efficiency at partial load. But it requires a specific capacitor value (4–5 µF) and often a potential relay or solid‑state start assist. Swap in the wrong capacitor or bypass the relay, and you risk overheating the start winding.
HSL19JE-5 uses RSIR (Resistor Start Inductor Run). Simpler, lower‑cost design. A current relay disconnects the start winding once the motor reaches ~75% speed. It typically needs a larger capacitor (~8.2 µF) just for starting. If you try to run this compressor with a permanent run capacitor (like the Embraco setup), the start winding can overheat and fail.
Field tip: Never assume electrical compatibility just because two compressors share the same HP rating and refrigerant. Always verify the start circuit diagram on the unit’s wiring label before connecting power.
Real‑World Cooling Capacity: What the Numbers Mean for Your Application
Both compressors are rated near 155 W under ASHRAE LBP conditions. But “rated” is a laboratory snapshot. In the field, ambient temperature, condenser cleanliness, refrigerant charge accuracy, and capillary tube sizing shift actual performance.
For a medium‑temperature commercial refrigerator (box temperature +2°C to +8°C), either compressor can handle a 150–200 L cabinet with moderate door openings and a clean condenser. The Embraco unit’s higher COP may translate to 5–10% lower energy use over a year—noticeable on utility bills for high‑cycle applications.
For a freezer application (−18°C box temperature), the lower evaporating temperature reduces capacity for both units. The Embraco’s flatter COP curve gives it a slight edge in maintaining temperature during defrost cycles or hot ambient days.
Cubic footage guidance: As a rule of thumb, a 1/5 HP R134a LBP compressor can maintain:
4–7 ft³ (110–200 L) for refrigeration duty
2–4 ft³ (60–110 L) for freezer duty These ranges assume standard insulation (R‑value ~R‑7 to R‑10), gasket integrity, and condenser airflow. Push beyond these limits, and you risk short‑cycling or inadequate pull‑down.
Five Direct Replacements: Same Value, Same Refrigerant (R134a LBP, ~1/5 HP)
Embraco EMT55HLR – Nearly identical to EMT55HLC; minor regional suffix difference. Same displacement, capacity, RSCR start. Drop‑in for Embraco‑spec systems.
Secop (Danfoss) SC15G – 1/5 HP, R134a, LBP, RSIR start. Verify capacitor and relay match before swapping.
Panasonic (Matsushita) 2RB52L2A – 1/5 HP class, R134a, LBP. Common in Asian‑market refrigerators; check mounting footprint.
LG MA45LP – 1/5 HP, R134a, LBP, RSIR. Used in household refrigerators; confirm electrical specs.
Huayi QD57Y – 1/5 HP equivalent, R134a, LBP. Budget option; verify COP and oil compatibility for commercial duty.
Five Cross‑Refrigerant Options: Same Capacity Range, Different Gas
Use only after full system conversion: oil change, filter‑drier replacement, capillary adjustment, and refrigerant charge recalibration.
Huayi QD35Y – R600a, compact footprint, ~1/6–1/5 HP range. Common in mini‑fridge conversions.
Embraco FF7.5HAK – R134a but MBP envelope; can be adapted to LBP with capillary change. Verify application limits before use.
Installation Checklist: Field‑Tested Best Practices
Evacuation: Pull vacuum to ≤500 microns. Moisture is the #1 cause of early compressor failure with POE oils.
Oil Compatibility: Embraco EMT55HLC ships with ester oil (ISO 22). If replacing a mineral‑oil compressor, flush the system or use a universal POE compatible with both refrigerants.
Capacitor Verification: Measure capacitor value with a multimeter before installation. A 20% deviation can cause hard starting or winding damage.
Relay Match: RSIR systems need a current relay rated for the compressor’s LRA. RSCR systems often use a potential relay—do not interchange.
Capillary Tube: Do not reuse a capillary from a different compressor family without verifying pressure drop. A mismatch causes poor pull‑down or flood‑back.
Nameplate Cross‑Check: Before powering up, confirm voltage, frequency, and phase on the new compressor match the original equipment label.
Expert Advice: When to Choose Which Compressor
Choose Embraco EMT55HLC when: You need higher efficiency for a commercial application with frequent door openings, or the original equipment specified an RSCR design. Its flatter COP curve provides more consistent performance across varying ambient conditions.
Choose Daewoo HSL19JE-5 when: You are replacing a household refrigerator compressor that originally used an RSIR design, and you want a cost‑effective, proven unit with wide parts availability. Verify the relay and capacitor match the existing circuit.
Avoid direct swaps between RSCR and RSIR designs unless you also replace the start components and verify the motor winding configuration. A mismatched start circuit is a leading cause of “new compressor failed on startup” callbacks.
Mbsmpro.com, Compressor, Donper, R134a, 1/6 hp to 1/2 hp, K and L Series, Cooling, Technical Data
In the HVAC and refrigeration industry, the Donper brand has become a synonymous name for reliability and cost-effective performance. Specializing in hermetic reciprocating technology, Donper’s R134a lineup—specifically the L-series and K-series—covers the vast majority of domestic and light commercial needs. From a small 1/6 HP refrigerator to a robust 1/2 HP commercial chest freezer, these compressors are engineered to handle varying thermal loads with consistent efficiency.
As a field technician or engineer, selecting the correct replacement or designing a system requires more than just knowing the horsepower. It requires a deep dive into displacement, motor torque, and winding characteristics. Below, we provide the definitive technical breakdown of the most common Donper R134a models.
Comparative Analysis: The Donper R134a Series
The transition from the L-series to the K-series marks a shift from residential “static” cooling to more demanding commercial “forced-air” or high-capacity “static” cooling. While the L58CZ1 is the quiet heart of a kitchen fridge, the K375CZ1 is the workhorse of the supermarket display.
Model
HP
Displacement (cc)
Cooling Cap (W)
Efficiency (W/W)
Motor Type
L58CZ1
1/6
5.8
140
1.15
RSIR
L65CZ1
1/5
6.5
165
1.20
RSIR
L72CZ1
1/4
7.2
195
1.25
RSIR/RSCR
K270CZ1
1/3
9.5
270
1.30
RSCR
K375CZ1
1/2
12.5
375
1.35
CSIR
Detailed Technical Data Sheets
Below are the exhaustive specifications for each model mentioned. This data is critical for calculating capillary tube lengths and ensuring electrical compatibility.
1. Donper L-Series (Domestic Focus)
Feature
L58CZ1 (1/6 HP)
L65CZ1 (1/5 HP)
L72CZ1 (1/4 HP)
Utilisation
LBP
LBP
LBP
Domaine
Cooling / Freezing
Cooling / Freezing
Cooling / Freezing
Oil Type / Qty
POE – 180ml
POE – 200ml
POE – 210ml
Power Supply
220-240V 50Hz
220-240V 50Hz
220-240V 50Hz
Cooling Capacity
478 BTU/h
563 BTU/h
665 BTU/h
Motor Type
RSIR
RSIR
RSIR/RSCR
Winding Material
Copper
Copper
Copper
Pressure Charge
100-120 PSI (Static)
100-120 PSI (Static)
110-130 PSI (Static)
Capillary (Typical)
0.028″ x 3m
0.031″ x 3m
0.036″ x 3m
Fan Required
No (Static)
No (Static)
Optional
LRA (Amps)
6.5 A
8.0 A
9.5 A
Capacitor
N/A
N/A
4-5 µF (if RSCR)
2. Donper K-Series (Commercial Focus)
Feature
K270CZ1 (1/3 HP)
K375CZ1 (1/2 HP)
Utilisation
LBP / MBP
LBP / MBP
Domaine
Large Freezing
Commercial Freezing
Oil Type / Qty
POE – 250ml
POE – 300ml
Power Supply
220-240V 50Hz
220-240V 50Hz
Cooling Capacity
921 BTU/h
1280 BTU/h
Motor Type
RSCR
CSIR (Start Cap)
Winding Material
Copper
High-Temp Copper
Pressure Charge
120-140 PSI (Static)
140-160 PSI (Static)
Capillary (Typical)
0.042″ x 2.5m
0.050″ x 2.5m
Fan Required
Recommended
Yes (Forced Air)
LRA (Amps)
12.0 A
18.0 A
Capacitor
6 µF (Run)
60-80 µF (Start)
Cross-Reference & Replacement Guide
When the exact Donper model is unavailable, the following industry-standard alternatives can be utilized. Ensure you verify the mounting foot dimensions as they may vary slightly between brands.
5 Alternative Gas Replacements (System Flush Required)
Donper (R600a): D65CY1 (for 1/5 HP applications)
Secop (R290): NLE11KK (High Efficiency)
Embraco (R600a): EMX3115Y
Cubigel (R290): GLY12RA
LG (R600a): BSA075LHE
Engineering Best Practices & Maintenance
Expert Advice: The K375CZ1 (1/2 HP) generates significant heat during the compression cycle. If installing this in a confined space, a condenser fan is non-negotiable. Lack of airflow will lead to oil carbonization and premature valve failure.
Vacuuming: Always pull a vacuum down to 500 microns. R134a uses POE oil, which is highly hygroscopic (absorbs moisture). Moisture in the system leads to acid formation that eats through copper windings.
Capillary Match: When moving from a 1/6 HP to a 1/4 HP compressor, you must resize the capillary tube. Using an undersized capillary will cause high head pressure and trip the thermal overload protector.
Relay Testing: If the compressor fails to start but hums, check the PTC relay or the Start Capacitor (on 1/2 HP models). Donper relays are standardized, but always match the Ohm resistance of the original part.
SEO Title: Mbsmpro.com, Compressor, Donper, R134a, 1/6 hp to 1/2 hp, K and L Series, Cooling, Technical Data
Meta Description: Full technical data sheets for Donper R134a compressors: L58CZ1 (1/6HP), L65CZ1 (1/5HP), L72CZ1 (1/4HP), K270CZ1 (1/3HP), and K375CZ1 (1/2HP). Includes cross-reference and wiring tips.
Excerpt: Donper has established itself as a powerhouse in the hermetic compressor industry, providing reliable cooling solutions for domestic and light commercial applications. This technical analysis explores the R134a L and K series, ranging from 1/6 HP to 1/2 HP, offering engineers and technicians the critical data needed for successful repairs and system optimizations.
Donper Series – R134a Refrigerant (LBP, 220V/50Hz)
These models feature aluminum windings (Al-wire) and are designed for Low Back Pressure (LBP) applications.
Model
Power (HP)
Cooling Capacity (W)
Power Supply
Wire Type
S53CW1
1/8 HP
135W
220V/50Hz
Aluminum
L58CZ1
1/6 HP
145W
220V/50Hz
Aluminum
L65CZ1
1/5 HP
170W
220V/50Hz
Aluminum
L72CZ1
1/4 HP
195W
220V/50Hz
Aluminum
L76CZ1
1/4 HP+
215W
220V/50Hz
Aluminum
K230CZ1
1/4 HP+
230W
220V/50Hz
Aluminum
K270CZ1
1/3 HP
270W
220V/50Hz
Aluminum
K325CZ1
1/3 HP
325W
220V/50Hz
Aluminum
Donper Series – R600a Refrigerant (LBP, 220V/50Hz)
Models optimized for Isobutane (R600a), also using aluminum motor windings.
Model
Power (HP)
Cooling Capacity (W)
Power Supply
Wire Type
A120CY1T
1/8 HP
118W
220V/50Hz
Aluminum
A145CY1A
1/6 HP
138W
220V/50Hz
Aluminum
S100CY1
1/5 HP
168W
220V/50Hz
Aluminum
S118CY1
1/4 HP
200W
220V/50Hz
Aluminum
L140CY1
1/4 HP+
235W
220V/50Hz
Aluminum
Technical Definitions
LBP (Low Back Pressure): Optimized for low evaporating temperatures (typically -35°C to -10°C), making them ideal for household freezers and refrigerators.
Cooling Capacity (W): Measured in Watts, representing the amount of heat the compressor can remove per hour under standard test conditions (ASHRAE).
Al-wire (Aluminum Wire): A cost-effective alternative to copper. While lighter, it requires specific handling during repair and is generally found in “entry-level” or standard domestic units.
