1. Okwu mmalite
This manual provides essential information for the safe and efficient operation of your COTEC SP2000-224 Pure Sine Wave Inverter. This advanced inverter offers high efficiency and power density, featuring selectable output voltage and frequency, all housed within a robust aluminum casing. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the device.
2. Ozi nchekwa
Na-agbaso ihe ndị a na-eme iji gbochie mmerụ ahụ na mmebi nke inverter ma ọ bụ akụrụngwa ejikọtara:
- Igwe ikuku: Hụ na ikuku na-ekupụ nke ọma gburugburu inverter. Ekpuchila oghere ikuku.
- gburugburu: Install the inverter in a dry, cool, and well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
- Nda ala: Properly ground the inverter chassis to prevent electrical shock.
- Ntinye DC: Connect the inverter only to a 24V DC battery bank. Ensure correct polarity (positive to positive, negative to negative). Reverse polarity will damage the unit.
- Mmepụta AC: Ekwela ka inverter ahụ bufee ibu. Hụ na ike ya niiletage of connected AC devices does not exceed the inverter's rated output.
- Ije ozi: Do not attempt to open or service the inverter yourself. Refer all servicing to qualified personnel.
- Mkpughe mmiri: Keep the inverter away from water, rain, or excessive moisture.
3. Akụrụngwa Ngwaahịa
The COTEC SP2000-224 Inverter incorporates several advanced features for reliable power conversion:
- Mmepụta ebili mmiri sine dị ọcha maka ngwa eletrọniki dị nro.
- Power ON / OFF remote control capability via a dedicated green terminal.
- Full input and output isolation for enhanced safety.
- Temperature and load-controlled cooling fan for efficient heat dissipation.
- User-friendly interface with 3-color LED status indicators.
- Output frequency selectable between 50 Hz and 60 Hz via DIP switch.
- Mmepụta voltage selectable via DIP switch.
- Power saving mode adjustable via a variable resistor.
- Comprehensive input protection: Reverse Polarity (via fuse), Under Voltage, karịrị Voltage.
- Comprehensive output protection: Short Circuit, Overload, Over Temperature.
- Certifications: E13, UL, CE, FCC approved.
4. Ntọala na nwụnye
Proper installation is crucial for the inverter's performance and safety.
4.1 Nwụnye anụ ahụ
Mount the inverter securely in a location that meets the safety requirements mentioned in Section 2. Ensure sufficient space around the unit for airflow.

Foto 4.1: N'akuku view of the COTEC SP2000-224 Pure Sine Wave Inverter, showcasing its robust blue and gray casing.
Njikọ ntinye DC 4.2
Connect the inverter to a 24V DC battery bank using appropriate gauge cables. Ensure the positive (+) terminal of the inverter connects to the positive terminal of the battery, and the negative (-) terminal of the inverter connects to the negative terminal of the battery. Install an appropriate fuse or circuit breaker in the positive DC line close to the battery.

Foto 4.2: N'azụ view of the inverter, highlighting the DC input terminals (red for positive, black for negative), the chassis ground screw, and the remote control terminal.
4.3 Chassis Ground Connection
Connect the chassis ground terminal (labeled 'CHASSIS GROUND') to a reliable earth ground point. This is a critical safety step.
4.4 AC Output and Controls
The inverter features a standard AC outlet and control switches on its front panel.

Foto 4.3: N'ihu view of the inverter, displaying the AC output socket, the main power switch, LED indicators, and DIP switches for configuration.
4.5 Ntọala mgbanwe DIP
The inverter features DIP switches for configuring output frequency and voltage. Refer to the specifications table (Section 7) or the product label for specific settings. Ensure the inverter is powered off before adjusting DIP switches.
- Ugboro mmepụta: Select 50 Hz or 60 Hz based on your regional requirements.
- Mmepụta Voltage: Họrọ mmepụta AC chọrọ voltage (e.g., 230VAC for this model).
5. Ntuziaka ọrụ
5.1 Gbanyụọ/ gbanyụọ
After all connections are secure and verified, switch the main power button on the inverter to the 'ON' position. The LED indicators will illuminate to show the inverter's status. To power off, switch the button to 'OFF'. A remote control terminal is also available for external ON/OFF control.
5.2 LED egosi
The 3-color LED indicators provide visual feedback on the inverter's operational status and any potential faults. Consult the product documentation or the specifications table for a detailed explanation of each LED state.
5.3 Ọnọdụ nchekwa ike
The power saving mode can be adjusted via a variable resistor. This feature helps reduce quiescent current draw when no load or a very light load is connected, conserving battery power.
5.4 Ijikọ Ibu AC
Plug your AC appliances into the inverter's AC output socket. Ensure the total power consumption does not exceed the inverter's continuous power rating (2000W for this model). For inductive loads (e.g., motors, refrigerators), consider their surge power requirements, which can be significantly higher than their running power.
6. Nlekọta
Mmezi oge niile na-eme ka arụmọrụ kachasị mma ma na-agbatị ndụ nke inverter gị.
- Nhicha: Debe inverter ahụ ọcha ma ghara ịta uzuzu. Jiri ákwà kpọrọ nkụ hichaa mpụta ya. Ejila ihe nhicha mmiri.
- Igwe ikuku: Periodically check that the cooling fan and ventilation openings are clear of obstructions.
- Njikọ: Inspect all DC and AC connections regularly to ensure they are tight and free from corrosion. Loose connections can cause overheating and poor performance.
- Nlekọta batrị: Follow the manufacturer's recommendations for your battery bank's maintenance.
7. Nchọpụta nsogbu
Ọ bụrụ na inverter anaghị arụ ọrụ nke ọma, lee nsogbu na ngwọta ndị a na-ahụkarị:
- No Output Power:
- Check DC input connections and battery voltage.
- Verify the inverter's power switch is ON.
- Check for blown DC input fuses (if applicable).
- Ngosipụta oke ibu:
- Reduce the total load connected to the inverter.
- Disconnect and reconnect the load to reset the inverter.
- Over Temperature Indication:
- Hụ na ikuku dị mma gburugburu inverter ahụ.
- Check if the cooling fan is operating.
- Reduce the load if operating in a hot environment.
- Batrị dị ala Voltage Alarm/Shutdown:
- Recharge the battery bank.
- Check battery connections for looseness or corrosion.
For persistent issues, contact COTEC customer support.
8. Nkọwapụta
The following table details the technical specifications for the COTEC SP2000 series, with specific values for the SP2000-224 model highlighted where applicable.

Foto 8.1: Detailed technical specifications for the COTEC SP-2000 series, including the SP2000-224 model.
| Njirimara | Nkọwapụta |
|---|---|
| Ụdị | COTEK |
| Aha Nlereanya | SP2000 (SP2000-224 variant) |
| Enyere ike | 2000W |
| Surge Power (1 Sec) | 4000W |
| Ntinye DC Voltage | 24VDC (Operating Range: 21.0-33.0VDC) |
| Mmepụta AC Voltage | 230VAC (selectable) |
| Ugboro mmepụta | 50/60 Hz (nwere ike ịhọrọ) |
| Mmepụta Waveform | Pure Sine Wave (THD<3% at nominal load) |
| Efficiency (Max) | 93% |
| Na-ajụ oyi | Temperature & load controlled fan |
| Okpomọkụ na-arụ ọrụ | -20°C ruo +40°C |
| Okpomọkụ nchekwa | -30°C ruo +70°C |
| Akụkụ (W x H x D) | 17.44 x 9.76 x 3.27 sentimita (443 x 248 x 83 mm) |
| Ibu Ibu | 1 pounds (approximate, actual unit weight may vary) |
| Akụkụ ngwugwu | 19 x 12 x 6 sentimita asatọ |
| Asambodo | E13, UL, CE, FCC approved |
8.1 Ihe osise eji arụ ọrụ
For detailed physical dimensions and mounting information, refer to the mechanical drawings below.

Foto 8.2: Mechanical drawings providing precise dimensions for installation planning.
9. Akwụkwọ ikike na nkwado
COTEC products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official COTEC websaịtị. Debe nnata nzụta gị dị ka ihe akaebe nke ịzụrụ maka nkwupụta ikike.





