1. Introduzzjoni
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. Informazzjoni dwar is-Sigurtà
Always observe the following safety precautions to prevent injury and damage to the inverter or connected equipment:
- Ventilazzjoni: Kun żgur li jkun hemm ventilazzjoni adegwata madwar l-inverter. Timblokkax il-fetħiet tal-ventilazzjoni.
- Ambjent: Installa l-inverter f'żona niexfa, friska, u ventilata sew, 'il bogħod mix-xemx diretta, sorsi ta' sħana, u materjali fjammabbli.
- L-ertjar: Properly ground the inverter chassis to prevent electrical shock.
- Input 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.
- Output AC: Do not overload the inverter. Ensure the total wattage of connected AC devices does not exceed the inverter's rated output.
- Servizzi: Tippruvax tiftaħ jew tagħmel manutenzjoni tal-inverter int stess. Irreferi għal kull manutenzjoni f'idejn persunal kwalifikat.
- Espożizzjoni għall-Ilma: Keep the inverter away from water, rain, or excessive moisture.
3. Karatteristiċi tal-prodott
The COTEC SP2000-224 Inverter incorporates several advanced features for reliable power conversion:
- Ħruġ ta' mewġa sinusoidali pura għal elettronika sensittiva.
- 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.
- Vol. Tal-ħruġtage selectable via DIP switch.
- Power saving mode adjustable via a variable resistor.
- Comprehensive input protection: Reverse Polarity (via fuse), Under Voltage, Fuq Voltage.
- Comprehensive output protection: Short Circuit, Overload, Over Temperature.
- Certifications: E13, UL, CE, FCC approved.
4. Setup u Installazzjoni
Proper installation is crucial for the inverter's performance and safety.
4.1 Installazzjoni Fiżika
Mount the inverter securely in a location that meets the safety requirements mentioned in Section 2. Ensure sufficient space around the unit for airflow.

Figura 4.1: Angolat view of the COTEC SP2000-224 Pure Sine Wave Inverter, showcasing its robust blue and gray casing.
4.2 Konnessjoni tad-Dħul DC
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.

Figura 4.2: Wara 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.

Figura 4.3: Quddiem view of the inverter, displaying the AC output socket, the main power switch, LED indicators, and DIP switches for configuration.
4.5 Issettjar tal-Iswiċċ 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.
- Frekwenza tal-ħruġ: Select 50 Hz or 60 Hz based on your regional requirements.
- Ħruġ Voltage: Agħżel il-volum tal-output tal-AC mixtieqtage (e.g., 230VAC for this model).
5. Istruzzjonijiet Operattivi
5.1 Tixgħel/Jitfi
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 Indikaturi LED
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 Modalità Iffrankar tal-Enerġija
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 Konnessjoni ta' Tagħbijiet 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. Manutenzjoni
Manutenzjoni regolari tiżgura prestazzjoni ottimali u testendi l-ħajja tal-inverter tiegħek.
- Tindif: Żomm l-inverter nadif u ħieles mit-trab. Uża drapp niexef biex timsaħ il-barra. Tużax prodotti tat-tindif likwidi.
- Ventilazzjoni: Periodically check that the cooling fan and ventilation openings are clear of obstructions.
- Konnessjonijiet: Inspect all DC and AC connections regularly to ensure they are tight and free from corrosion. Loose connections can cause overheating and poor performance.
- Manutenzjoni tal-batterija: Follow the manufacturer's recommendations for your battery bank's maintenance.
7 Issolvi l-problemi
If the inverter is not functioning correctly, refer to the following common issues and solutions:
- L-ebda Qawwa tal-Ħruġ:
- Check DC input connections and battery voltage.
- Verify the inverter's power switch is ON.
- Check for blown DC input fuses (if applicable).
- Indikazzjoni ta' tagħbija żejda:
- Naqqas it-tagħbija totali konnessa mal-inverter.
- Disconnect and reconnect the load to reset the inverter.
- Over Temperature Indication:
- Kun żgur li jkun hemm ventilazzjoni adegwata madwar l-inverter.
- Check if the cooling fan is operating.
- Reduce the load if operating in a hot environment.
- Batterija Baxxa Voltage Allarm/Għeluq:
- Recharge the battery bank.
- Check battery connections for looseness or corrosion.
For persistent issues, contact COTEC customer support.
8. Speċifikazzjonijiet
The following table details the technical specifications for the COTEC SP2000 series, with specific values for the SP2000-224 model highlighted where applicable.

Figura 8.1: Detailed technical specifications for the COTEC SP-2000 series, including the SP2000-224 model.
| Karatteristika | Speċifikazzjoni |
|---|---|
| Brand | COTEK |
| Isem tal-Mudell | SP2000 (SP2000-224 variant) |
| Qawwa Rated | 2000W |
| Surge Power (1 Sec) | 4000W |
| Vol Input DCtage | 24VDC (Operating Range: 21.0-33.0VDC) |
| Vol Output ACtage | 230VAC (selectable) |
| Frekwenza tal-ħruġ | 50/60 Hz (jagħżel) |
| Output Waveform | Pure Sine Wave (THD<3% at nominal load) |
| Effiċjenza (Massima) | 93% |
| Tkessiħ | Temperature & load controlled fan |
| Temperatura operattiva | -20°C sa +40°C |
| Temperatura tal-Ħażna | -30°C sa +70°C |
| Dimensjonijiet (W x H x D) | 17.44 x 9.76 x 3.27 pulzieri (443 x 248 x 83 mm) |
| Piż tal-oġġett | 1 pounds (approximate, actual unit weight may vary) |
| Dimensjonijiet tal-Pakkett | 19 x 12 x 6 pulzieri |
| Ċertifikazzjonijiet | E13, UL, CE, FCC approved |
8.1 Tpinġijiet Mekkaniċi
For detailed physical dimensions and mounting information, refer to the mechanical drawings below.

Figura 8.2: Mechanical drawings providing precise dimensions for installation planning.
9. Garanzija u Appoġġ
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 websit. Żomm l-irċevuta tax-xiri tiegħek bħala prova tax-xiri għal talbiet ta' garanzija.





