Secop GTK70AT Compressor Specifications and Equivalents
Mbsm.pro, Compressor, SECOP, GTK70AT, 1/5+ HP, R134a, 220-240V 50Hz, LBP, Refrigerator, Freezer
The SECOP GTK70AT is a cornerstone in the world of high-efficiency domestic refrigeration. Engineered in Slovakia, this compressor represents the evolution of the Kappa series, offering a robust solution for Low Back Pressure (LBP) applications. It is specifically designed to handle the demanding pull-down requirements of modern energy-efficient refrigerators and medium-sized chest freezers using R134a refrigerant.
Technicians value the GTK70AT for its high reliability and relatively low noise profile. Unlike standard 1/5 HP units, this “Plus” model provides a slight edge in displacement, ensuring that during high-ambient temperature conditions, the cooling curve remains stable without stressing the motor windings.
Technical Data Sheet
| Feature | Specification |
| Model | GTK70AT |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Cooling |
| Cooling Wattage (-23.3°C) | 195 W |
| Cubic Feet Capacity | 10 – 14 cu.ft |
| Litres Capacity | 280 – 400 Liters |
| Kcal/h | 168 Kcal/h |
| Oil Type and Quantity | POE (Polyolester) / 180 ml |
| Horsepower (HP) | 1/5+ HP |
| Refrigerant Type | R134a |
| Power Supply | 200-240V ~ 50Hz |
| Cooling Capacity BTU | 665 BTU/h |
| Motor Type | RSIR/RSCR (depending on starter kit) |
| Displacement | 6.64 cm³ |
| Winding Material | Copper |
| Pression Charge | Low side (0.5 to 1.5 psi running) |
| Capillary Recommendation | 0.031″ or 0.036″ (Length varies by design) |
| Application Range | Double door fridges, Upright freezers |
| Temperature Range | -35°C to -10°C |
| Cooling Type | Static (No fan required for compressor) |
| Commercial Use | Light Commercial / Domestic |
| Amperage (RLA) | 0.9 A to 1.1 A |
| LRA (Locked Rotor Amps) | 6.1 A |
| Starter Type | PTC Relay |
| Capacitor | 4µF Run Capacitor (Optional for RSCR) |
| Origin | Slovakia |
Efficiency Metrics (COP) – Performance Data
| Evaporating Temp (°C) | Cooling Capacity (Watts) | Power Consumption (Watts) | COP (W/W) |
| -30 | 140 | 115 | 1.22 |
| -25 | 182 | 131 | 1.39 |
| -23.3 | 195 | 138 | 1.41 |
| -20 | 235 | 150 | 1.57 |
| -15 | 302 | 171 | 1.77 |
| -10 | 385 | 195 | 1.97 |
Comparison: GTK70AT vs. Standard Series
When comparing the GTK70AT to the older TLES or GL series, the GTK series offers a more compact shell design which aids in reducing vibration resonance. While a standard 1/5 HP compressor like the GL70AA uses about 6.0cm³ displacement, the GTK70AT’s 6.64cm³ displacement allows it to reach target temperatures 15% faster, making it ideal for “Tropical Class” appliances.
Professional Advice & Maintenance Tips
- Oil Sensitivity: Always use POE oil if a recharge is necessary. Never mix with mineral oil, as R134a systems will undergo wax plating and clog the capillary.
- Filter Drier: Always replace the filter drier when swapping a compressor. A 20g XH-9 molecular sieve is recommended for this model.
- Vacuuming: Ensure a vacuum of at least 500 microns to remove all moisture, as the GTK series is sensitive to internal acid formation if moisture remains.
Compressor Cross-Reference & Replacements
5 Replacements (Same Refrigerant – R134a)
- Embraco: EMY70HLC / EMT6170Z
- Danfoss: TLS7F
- Tecumseh: THG1365YS
- Huayi: HYE69YL
- ZMC: GL70AA / GVY66AA
5 Replacements (Different Refrigerant – R600a/R290)
- Secop: NLE7.0KK.4 (R600a)
- Embraco: EMX70CLC (R600a)
- Jiaxipera: NT1114Y (R600a)
- Secop: DLE7.5CN (R290 – High efficiency)
- Tecumseh: TLY7.5KK.3 (R600a)
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Meta Description: Detailed technical analysis of the SECOP GTK70AT compressor. Includes cooling capacity, COP efficiency tables, HP ratings, and direct replacement guides for R134a refrigeration systems.
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Excerpt: The SECOP GTK70AT is a high-performance 1/5+ HP compressor designed for R134a Low Back Pressure (LBP) applications. Featuring a 6.64 cm³ displacement and 195W cooling capacity at -23.3°C, this Slovakian-made unit is a reliable choice for domestic freezers and refrigerators. This guide provides full technical specs, COP metrics, and professional replacement equivalents.
