SOLAX POWER PVR-24S (01) PDF MANUAL

1. Contents may be periodically updated or revised. SolaX reserves the right to make improvements or changes in the product(s) and the program(s) described in this manual without the prior notice.

2. The installation and maintenance can only be performed by qualified personnel who:

• Are licensed and/or satisfy state and local jurisdiction regulations;

• Have good knowledge of this manual and other related documents.

3. Before installing the device, carefully read, fully understand and strictly follow the detailed instruction of the installation manual and other related regulations. SolaX shall not be liable for any consequences caused by the violation of the installation, and operation regulations specified in this document.

4. Use insulated tools when installing the device. Individual protective tools must be worn during installation, electrical connection and maintenance.

Potential risk of lethal electrical shock associated with the photovoltaic (PV) system.

• Exposure to sunlight can result in the generation of high DC voltage by PV modules, which can lead to electric shock causing severe injuries or even death.

• Never touch the positive or negative poles of the PV connecting device, and avoid touching both poles simultaneously.

• Do not ground the positive or negative poles of the PV modules.

• Only qualified personnel can perform the wiring of the PV modules.

The grounding cable must be well connected to ground.

• Incorrect connection may cause fatal electric shock!

• If not connected correctly, the device may be damaged when struck by lightning!

Lethal danger from electrical shock due to the device.

• Only operate the device when it is technically faultless. Otherwise, electric shock or fire may occur.

• Do not open the enclosure in any case without authorization from SolaX. Unauthorized opening will void the warranty and cause lethal danger or serious injury due to electric shock.

• The inverter, which connected in parallel mode with a PV Reverse Combiner Box, should be switched on before sunrise or after sunset.

• When power on the system, the correct order is: switch on the PV Reverse Combiner Box, turn the inverter DC switch to ON, then turn the switch of the PV Combiner box to ON.

Touching the internal terminals of the device may result in electric shock or fire!

• Do not touch the terminals or conductors connected to the inverter or string.

• The screws of the terminal must be tightened in place, otherwise the terminal would be heated and burned after a prolonged period.

• Multi-strand copper core flame-retardant cables must be used, with the wire diameter not less than the recommended value.

• The screw of the waterproof terminal must be tightened in place, otherwise it may cause water leakage.

• Keep children away from the device.

• Pay attention to the weight of the device. Personal injuries may be caused if not handled properly.

• All the product labels and nameplate on the device shall be maintained clearly visible.

Note: As for PVR-10S, you should connect 10 positive output terminals and 10 negative output terminals; as for PVR-24S, you should connect 24 positive output terminals and 24 negative output terminals; and other models in the same way.

Installation Tools:

• Hammer drill (drill bit: Ø10 mm)

• Multimeter (≥ 1100 V DC)

• Measuring tape

• Utility knife

• Marker

• Spirit level

• Torque screwdriver (Phillips head: M3 / M5)

• Crimping tool for output terminal

• Wire stripper

• Torque wrench (including 16 mm wrench)

• Heat gun

• Heat shrink tubing (Ø6 mm)

• Crimping tool

• Safety boots

• Safety goggles

• Anti-dust mask

• Safety gloves

Additionally Required Materials:

* For copper input cables, please use copper terminals, for aluminium input cables, please use aluminium-to-copper terminals.

• The ambient temperature: -40°C to +60°C.

• The relative humidity shall be between 0-95%RH.

• Install the device in a well-ventilated environment for heat dissipation. It is recommended to install an awning over the device if it is installed on a support outdoor.

• Do not install the device in areas with flammable, explosive and corrosive materials or near combustibles and antennas.

• For outdoor installation, precautions against direct sunlight, rain exposure and snow accumulation are recommended.

• Exposure to direct sunlight raises the temperature inside the device. This temperature rise poses no safety risks, but may impact the device performance.

1. The dimensions for mounting between the lugs on both sides is 860 mm (W) x 473 mm (H).

2. Mark the position of the mounting holes and drill. The holes should have a depth of 20 mm and a diameter of 10 mm.

3. Fix the box to the wall using M8x20 screws, lugs, washers, and nuts in that order. Tighten the M8 nuts to a torque of 10.8-13.2 N·m.

DANGER! Before electrical connection, make sure all switches and DC breaker are disconnected. Otherwise, the high voltage may cause electric shock, resulting in severe personal injuries or even death.

Preparation Before Connection

1. Use keys to open the PV Reverse Combiner Box.

2. Remove the PC Cover by unscrewing the M5 screws (torque 0.8 N·m).

Input Connection

1. Strip 35 mm of insulation from the input cable and sleeve the terminal onto the cable.

2. Crimp the cable to the Input terminal.

3. Dismantle the input cable gland by hand loosening it.

4. Dismantle the M12 screw (torque 25 N·m).

5. Insert the cable through the input cable gland parts in order. Pre-assemble the input cable gland but do not tighten it yet.

6. Insert the cable and input cable gland into the device and tighten the M12 screw to 25 N·m.

7. Adjust the cable and tighten the input cable gland hand tight. If the seal is not secure, it is recommended to add some fireproof mud inside the input cable gland. NOTICE: During connection, pay attention to the polarity, and do not reverse it.

Output Connection

1. Strip 15 mm of insulation from the output cable and sleeve the terminal onto the cable.

2. Crimp the cable to the output terminal.

3. Dismantle the output cable gland (tightening torque 1-2 N·m).

4. Insert the cable through the output cable gland parts in order. Pre-assemble the output cable gland but do not tighten it yet.

5. Insert the cable into the terminal on the output cable gland and tighten the M5 screw to 3 N·m.

6. Adjust the cable and tighten the output cable gland to 1-2 N·m. NOTICE: During connection, pay attention to the polarity, and do not reverse it.

Grounding Connection

1. Strip the yellow and green grounding cable (10-14 mm²) to the required length (A = B + (2~3 mm)).

2. Place heat-shrink tubing over the cable.

3. Crimp the terminal onto the cable.

4. Dismantle the grounding cable gland (tightening torque 4-6 N·m).

5. Insert the cable through the grounding cable gland parts. Pre-assemble the gland and do not tighten it.

6. Insert the cable and grounding cable gland into the device. Tighten the terminal screw (M5) to 3 N·m. Adjust the cable and tighten the output cable gland to 4-6 N·m.

Preparation After Connection

1. Install the PC cover, tightening the M5 screws to 0.8 N·m.

2. Use the keys to lock the door. Power on the system before locking the door for the first-time use.

NOTICE: During operation, please wear protective equipment and make sure that all cables have been connected to the inverter.

Power on the System

Step 1: Use keys to open the door.

Step 2: Ensure that all switches are disconnected before proceeding.

Step 3: Check that the positive and negative terminals of the PV Reverse Combiner Box are not reversed.

Step 4: Use a multimeter to measure the voltage on the output side of the PV Reverse Combiner Box, ensure that the voltage of each circuit is basically equal and there is no negative voltage (wrong polarity will cause damage to the box and inverter!).

Step 5: Turn the inverter DC switch to ON, then turn the switch of the PV Combiner box to ON.

Step 6: Lock the door and pull out the key.

Power off the System

Step 1: Use keys to open the door.

Step 2: Disconnect the switch on the input side of the PV Reverse Combiner Box (if any). (Do not disconnect the DC switch of the inverter first, it is possible to cause damage to the PV Reverse Combiner Box and the inverter!)

Step 3: Turn the switch of the PV Combiner box to OFF. Then turn the inverter DC switch to OFF.

Step 4: Lock the door and pull out the key.

NOTICE

• Once the fuse has blown, it cannot be restored and must be replaced immediately.

• The fuse replacement must be of the same grade as the original one!

• Do not check or replace the fuse with load! Installation and removal of the fuse must be proceeded with no load to avoid arc damage and personal injury.

Steps:

Step 1: Pull out the fuse cover.

Step 2: Replace the fuse.

Step 3: Close the fuse cover tightly.

DC input & AC output

Protection

System data