Moso SF8KTL Manual
The Moso SF8KTL is a high-performance solar inverter designed for residential and commercial applications. With a maximum output power of 8000W, this inverter efficiently converts DC power from solar panels into AC power for your home or business. Its advanced features include multiple MPPT trackers for optimal energy harvesting, a wide operating temperature range, and IP65 protection for reliable performance in various weather conditions. This inverter can be easily integrated into your existing electrical system, allowing you to generate clean and sustainable energy.
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Solar Inverter SF8KTL CONTENTS 1. INTRODUCTION............................................................................................................................................................ 1 1.1How to use this manual......................................................................................................................................... 1 1.2Validity..................................................................................................................................................................... 1 1.3Target Group............................................................................................................................................................. 1 2. SAFETY........................................................................................................................................................................... 2 2.1 Safety Instructions............................................................................................................................................. 2 2.2 Glossary Symbol..................................................................................................................................................... 2 3. PRODUCT INTRODUCTION....................................................................................................................................... 3 3.1 Overview.................................................................................................................................................................. 3 3.2 Type Label............................................................................................................................................................... 3 4. INSTALLATION.............................................................................................................................................................. 3 4.1 Installation Process........................................................................................................................................... 4 4.2 Pre-installation check....................................................................................................................................... 4 4.3 Choose an installation location..................................................................................................................... 4 4.4Installing the SF series..................................................................................................................................... 4 5.ELECTRICAL CONNECTION....................................................................................................................................... 6 5.1 Electrical connection process......................................................................................................................... 6 5.2 Connecting PGND Cables(PE)........................................................................................................................... 6 5.3 Connecting AC Output Power Cables................................................................................................................. 6 5.4 Connecting DC Input Power Cables................................................................................................................... 8 5.5 Disconnect the electrical connections......................................................................................................... 9 6. SYSTEM OPERATION................................................................................................................................................ 10 6.1 Operating mode..................................................................................................................................................... 10 6.2 Powering on the SF series............................................................................................................................... 10 A.1 DC Input................................................................................................................................................................. 10 A.2 AC Output.............................................................................................................................................................. 11 A.3 General Data.......................................................................................................................................................... 11 1. INTRODUCTION 1.1How to use this manual In order to better use this manual, please understand the information of product model, Intended audience and symbol conventions that it oriented and other information. 1.2Validity This manual describes the assembly, installation, commissioning and maintenance of the following inverters: SF6KTL SF7KTL SF8KTL 1.3Target Group This manual is for qualified personnel. Qualified personnel have received training and have demonstrated skills and knowledge in the construction and operation of this device. Qualified Personnel are trained to deal with the dangers and hazards involved in installing electric devices. 1 2. SAFETY Please read safety precautions in this manual carefully, if ignored, could result in serious injury or death. 2.1 Safety Instructions When using the product, please do remember the below information to avoid the fire, lightning or other personal injury: Ensure that input DC voltage is less than Max. DC input voltage. Over voltage may cause permanent damage to inverter or other losses, which will not be include in warranty! This chapter contains important safety and operating instructions. Read and keep this operation guide for future reference. Authorized service personnel must disconnect both AC and DC power from the SF series inverter before attempting any maintenance or cleaning or working on any circuits connected to the SF series inverter. 2.2 Glossary Symbol This section gives a glossary of all the symbols shown on the inverter and the type label. Table 2-1 Symbols on the inverter Symbol Meaning Danger to life due to high voltages in the inverter There would be residual voltage in the inverter. Operation after 5 minutes. Beware of hot surface The inverter may become hot during operation. Avoid any contact to the surface during operation. Danger of high voltages Danger to life due to high voltages in the inverter! Requests the user to consult the manual. Warning signs Pay attention to the safety of inverter operation. Grounding mark The inverter is connected with the ground to achieve the purpose of groun ding protection 2 3. PRODUCT INTRODUCTION 3.1 Overview SF8TL series 3.2 Type Label The type labels provide a unique identification of the inverter (The type of product, Device-specific characteristics, Certificates and approvals). The type labels are on the right-hand side of the enclosure. 3 4. INSTALLATION 4.1 Installation Process Installation Process of SF series,as shown in Figure 4-1。 Figure 4-1 Installation Flow chart Star Installation check Preparing Installation Tools t Choose an installation location Moving inverter End Installation the bracket Installation the inverter 4.2 Pre-installation check Table 4-1 Deliverables description Number Explanation Quantity (SF6KTL Series) Quantity (SF8TL Series) 1 SF series Inverter 1 1 2 Bracket 1 1 3 Expansion bolts and screws 4 4 4 DC input connector of negative 2 3 5 AC output connector 1 1 6 DC input connector of positive 2 3 7 User manual 1 1 4.3 Choose an installation location The installation method and mounting location must be suitable for the weight and dimensions of the inverter. Select a wall or solid vertical surface which is able to support the PV inverter. Mount on a solid surface, the mounting location must be accessible at all times. Vertical installation or tilted backwards by max. 15°. The connection area must point downwards. Do not install horizontally. To ensure good heat dissipation and reserve enough space for installing the SF series, the SF series is at least 30cm, 50 cm, 100cm, and 50cm away from objects on its both sides, top, bottom, and front respectively, as shown in Figure 4-3. Figure 4-3Minimuminstallationclearance When installing multiple SF series Inverters in high temperature areas, please increase the space properly as needed to make sure that there is enough space for heat dissipation. 4.4Installing the SF series If the installation locations near the ground ,first connect the PGND cable to the ground before installing the Inverter on the wall. Step 1Install the bracket 1.Determine the position for drilling holes, level hole positions, and then mark the hole positions by using a marker, as shown in Figure 4-4 4 Figure 4-4 Hole positionsanddimensions(Unit :mm) Drill holes by using a hammer drill and install expansion bolts. . 2. Align the bracket with hole positions, insert expansion bolts into the holes, and tighten the expansion bolts to a torque of 30 N.m using a torque wrench, as shown in Figure 4-5. Figure 4-5Securinga bracket Step 2Install the SF series 1、The hole in the wall 2、Plastic screw socket 3、Tapping screw 1. Use one hand to hold the handle at the bottom of the SF series and use the other hand to hold the handle close to the top of the SF series and then stand the SF series. Two peoples are required to install the SF series. 1.Mount the SFseries on the bracket and keep them aligned with each other, as shown in Figure 4-6. Figure 4-6 Mounting the SF series on the bracket (left view) 5 5.ELECTRICAL CONNECTION 5.1 Electrical connection process Electrical connection process of SF series as shown in Figure 5-1。 Figure 5-1 Electrical connection flowchart Start Connecting PGND Cables Connecting AC output Cables (PE) End Connecting DC Input Cables 5.2 Connecting PGND Cables(PE) Good grounding for the SF series can help resist the impact of the surge voltage and improve the EMI performance. First connect the PGND cable before connecting the AC power cable, DC power cable, and communication cable. For the system with one SF series, connect the PGND cable to the ground. For the system with multiple SF series ,connect the PGND cables of all SF series to a ground bar. If the installation location is near the ground ,first connect the PGND cable to the ground before installing the SF series on the wall. Step 1 Remove the insulation layer with an appropriate length using a wire stripper. Insert the exposed core wires into the OT terminal and crimp them by using a crimping tool, as shown in Figure 5-2. Figure 5-2 Preparing a ground cable Step 2Install the crimped OT terminal, flat washer, and spring washer on the M6 welded stud, and tighten the nut to a torque of5 N.m using a socket wrench. Toenhancetheanti-corrosionperformanceofthegroundterminals,applysilicagel on the mafter connecting the ground cable. 5.3 Connecting AC Output Power Cables Figure 5-3 AC connector diagram 1. Adapter 2. .Sleeve 3. Cable Gland 4. AC output connector Step 1 Remove the cable gland and the adapter from the AC output connector. Step 2 Remove the insulation layer of the AC output cable of an appropriate length using a wire stripper. 1. Strip the outer jacket of AC output cable by 55mm. 2. CutthecorewiresofthecablesexcludingthePGNDcableby2.5mm. That is, the core wire of the PGND cable should be 2.5 mm longer than that of other four cables. 3. Strip the insulation layer of each core wires by 12mm. 6 Figure 5-4 Connecting an AC output power cable (1) (unit: mm) Step 3 Insert AC output cable (L, N, PE) into the cable gland and the adapter, as shown in Figure 5-6. Figure 5-5 Connecting an AC output power cable (2) Step 4 Loosen the screws inside the coupling nut holes using a screwdriver, insert the core wires into corresponding holes, and tighten the screws, as shown in Figure 5-6. Tighten the screws to a torque of 0.7 N.m. Figure 5-6 Connecting an AC output power cable (3) Connect L to the hole L. Connect N to the hole N. Connect PE to the hole PE . Step 5 Check that all core wires are properly connected. Step 6 Secure the adapter to the coupling nut. Tighten the adapter to a torque of 1~2 N.m. Step 7 Secure the cable gland to the adapter, as shown in Figure 5-8.Tighten the cable gland to a torque of 5 N.m (You need to use some tool to achieve this torque). Figure 5-7 Connecting an AC output power cable (4) Step 8 Connect the AC output connector to the bayonet coupling of the AC output wiring terminal on the SF series and rotate it clockwise until you hear a "click" sound. Because no sufficient space is available on the right of the AC terminal, tighten the terminal using the left hand. 7 5.4 Connecting DC Input Power Cables Before connecting the DC input cable, please make sure that the Inverter “DC SWITCH” in the “OFF” status, otherwise, the high voltage can bring about life threatening. Table 5-2 Recommended DC input cable specifications Conductor cross-section(mm2) Range Recommended Value 4.0 2.5~4.0 Cable diameter range(mm) 4.5~7.8 DC input connector include positive connector and negative connector, as shown in figure 5-8. Figure 5-8 Positive connector and Negative connector Step 1Remove cable glands from the positive and negative connectors. Then ,Remove the insulation layer with an appropriate length from the positive and negative power cables by using a wire stripper as show in Figure 5-9. Figure 5-9ConnectingDCinputpowercables(1) 1. Positive power cable 2. Negative power cable Step 2Insert the positive and negative power cables into corresponding cable glands. Step 3Insert the stripped positive and negative power cables into the positive and negative metal terminals respectively and crimp them using a clamping tool. Ensure that the cables are crimped until they cannot be pulled out by force less than 400 N, as shown in Figure 5-10. Figure 5-10 Connecting DC input power cables(2) 1. Positive power cable 2. Negative power cable Step 4Insert crimped power cables into corresponding housings until you hear a "click" sound. The power cables snap into place. Step 5Reinstall cable glands on positive and negative connectors and rotate them against the insulation covers. Before performing step 6, the DC switch is OFF. Step 6Insert the positive and negative connectors into corresponding DC input terminals of the SF series until you hear a "click" sound, as shown in Figure 5-11. Figure 5-11Connecting DC input power cables(3) 8 1. Bayonet 5.5 Disconnect the electrical connections Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Disconnect the circuit breaker between the inverter and the grid. Ensure that the DC SWITCH is OFF. Disconnect the RS485 communication cable. Disconnect the DC input cable. Disconnect the AC input cable. Disconnect the ground cable. 9 6. SYSTEM OPERATION 6.1 Operating mode SF series has three working mode: standby mode, operating mode, off mode. 6.2 Powering on the SF series After ensure that electrical connections have been completed correctly, run the operation of power-on, then turn on the inverter. Step 1Check that the SF series is installed on the wall correctly and securely. For details, see 4.3Installing the SF series. Step 2Check that all AC output power cables are properly connected. For details, see 5.3ConnectingACOutputPowerCables. Step 3Check that all DC input power cables are properly connected. For details, see 5.4 Connecting DC Input Power Cables Step 4Ensure that unused DC input terminals are sealed. Step 5Switch on the AC circuit breaker between the SF series and the power grid. Step 6Ensure that the DC SWITCH at the bottom of the SF series is ON. LED LED1 LED2 Message Communication Status Status Grid LED3 Alarm Status Status Red Green Red Green Red Green Definition Grid fault OK Communication failure OK Inverter fault OK The monitoring panel can be activated only after power is supplied to the DC side. 7. Specification A.1 DC Input Model SF6KTL SF7TL SF8TL Max DC Power 6600W 7700W 8800W Max Input Current 12A 12A 12A Max DC Voltage 600V 600V 600V Number of MPPT Trackers 2 3 3 MPPT Voltage Range 70-600V 70-600V 70-600V 10 A.2 AC Output Model SF6KTL SF7TL SF8TL Rated Output Power 6000W 7000W 8000W Max AC Output Power 6600W 7700W 8000W Max Output Current 26A 33A 35A Output Voltage 220/230/240 VAC 220/230/240 VAC 220/230/240 VAC Grid Frequency 50/60Hz 50/60Hz 50/60Hz Power Factor(cosΦ) 0.8Lead…0.8Lag 0.8Lead…0.8Lag 0.8Lead…0.8Lag Harmonics <3% <3% <3% A.3 General Data Model SF6KTL SF7TL SF8TL 430/400/160 430/400/160 430/400/160 Weight 16kg 18kg 18kg Cooling Method Natural Cooling Natural Cooling Natural Cooling Operating Temperature Range -25℃~60℃ -25℃~60℃ -25℃~60℃ 0%~95% 0%~95% 0%~95% (Non-Condensing) (Non-Condensing) (Non-Condensing) IP Grade IP65 IP65 IP65 Topology No Transformer No Transformer No Transformer Communication Interface WIFI(Opt.)/GPRS(Opt.) WIFI(Opt.)/GPRS(Opt.) WIFI(Opt.)/GPRS(Opt.) Warranty Period 5 Years 5 Years 5 Years Dimension(W/H/D) [mm] Humidity 11 ">

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Key features
- 8000W max output
- Multiple MPPT trackers
- Wide operating temperature
- IP65 protection
- Natural cooling
- WIFI/GPRS communication
- 5-year warranty
Frequently asked questions
The Moso SF8KTL has 3 MPPT trackers.
The maximum DC input voltage is 600V.
The SF8KTL operates in a temperature range of -25℃ to 60℃.