Determining the Installation Position

Installation Environment Requirements

• Do not install the inverter in working or living areas.
• If the device is installed in public places (such as parking lots, stations, and factories) other than working and living areas, install a protective net outside the device, set up a safety warning sign to isolate the device, and prevent unauthorized personnel from approaching the inverter. This is to avoid personal injury or property loss caused by accidental contact or other reasons during device operation.
• If inverters are installed in a place with abundant vegetation, in addition to routine weeding, harden the ground underneath the inverters using cement or gravel (recommended area: 3 m x 2.5 m).
• Do not install the inverter in areas with flammable materials.
• Do not install the inverter in areas with explosive materials.
• Do not install the inverter in areas with corrosive materials.
• Do not install the inverter where its enclosure and heat sinks are easily accessible, because the voltage is high and these parts are hot during operation.
• Install the inverter in a well-ventilated environment for heat dissipation
• If the inverter is installed in an airtight environment, a heat dissipation device or ventilation device must be installed to ensure that the indoor ambient temperature is not higher than the external ambient temperature during operation.
• You are advised to install the inverter in a sheltered place or install an awning over it.
• The inverter will be corroded in salt areas. Before installing the inverter outdoors in salt areas, consult Huawei. A salt area refers to the region within 500 meters from the coast or prone to sea breeze. The regions prone to sea breeze vary with weather conditions (such as typhoons and monsoons) or terrains (such as dams and hills).

The SUN2000-125KTL-M0 should be physically separated from third-party wireless communication facilities and residential environments by distance greater than 30 m.

Mounting Structure Requirements

• The mounting structure where the solar inverter is installed must be fire resistant. Do not install the solar inverter on flammable building materials.
• Ensure that the installation surface is solid enough to bear the solar inverter.
• In residential areas, do not install the solar inverter on drywalls or walls made of similar materials with a weak sound insulation performance because the noise generated by the solar inverter may interfere with residents.

Figure 4-1 Mounting structure

Installation Angle Requirements

The solar inverter can be support-mounted or wall-mounted. The installation angle requirements are as follows:

• Install the solar inverter vertically or at a maximum back tilt of 75 degrees to facilitate heat dissipation.
• Do not install the solar inverter at forward tilted, excessive back tilted, side tilted, horizontal, or upside down positions.

Figure 4-2 Angle

Installation Dimensions Requirements

Reserve enough space around the solar inverter for installation and heat dissipation.

Figure 4-3 Installation clearance

For ease of installing the solar inverter on the mounting bracket, connecting cables to the bottom of the solar inverter, and maintaining the solar inverter in future, it is recommended that the bottom clearance be between 600 mm and 730 mm. If you have any question about the clearance, consult the local technical support engineers.

When installing multiple solar inverters, install them in horizontal mode if sufficient space is available and install them in triangle mode if no sufficient space is available. Stacked installation is not recommended.

Figure 4-4 Horizontal installation mode (recommended)

Figure 4-5 Triangle installation mode (recommended)

Figure 4-6 Stacked installation mode (not recommended)