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City Plumbing GB£177.48Visit shop Hoymiles Hms-900-2T Microinverter (900 Watts)
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The Hoymiles HMS-900-2T microinverter is an ideal solution for residential solar installers and homeowners looking to maximize energy harvest from dual-panel configurations. By providing 900 watts of output power and dual independent MPPT inputs, it ensures that each connected PV module operates at peak efficiency, even if one panel is partially shaded. While it offers superior granular monitoring and performance, users should note that it requires a dedicated DTU (Data Transfer Unit) to enable the Sub-1G wireless monitoring capabilities.
| Model Part Number | 221994 |
|---|---|
| Brand | Hoymiles |
While designed for two modules, you can technically operate one, but it is more cost-effective to use a single-input microinverter for that scenario.
It is compatible with most standard residential PV modules; check the inverter's voltage and current specifications against your panel's datasheet to ensure compatibility.
The Sub-1G technology offers excellent range, often penetrating through multiple walls, but the exact distance depends on local obstacles and structural materials.
The microinverter uses standard MC4 connectors for DC input; a standard MC4 disconnect tool is recommended for safe installation and maintenance.
Hoymiles typically offers a robust warranty on their microinverters; please check your specific purchase documentation or the Hoymiles official website for the exact term length.
Check if the DTU is powered on and within range of the microinverter. Ensure the serial numbers were correctly added to the management software.
Verify that the AC branch circuit breaker is on and check that the DC cables from the PV modules are securely connected to the MPPT inputs.
Installation should be performed by a certified professional in accordance with local electrical codes. The microinverter is designed to be mounted directly under the PV modules on the racking system. Ensure that the mounting surface is clean and provides adequate airflow for passive cooling. During setup, you must pair the device with a compatible Hoymiles Data Transfer Unit (DTU) to begin data transmission. Regarding care, the system is designed to be maintenance-free due to its rugged, weather-resistant enclosure. However, it is good practice to visually inspect the connections and the status lights on the unit during annual maintenance checks to ensure no physical damage has occurred from debris or pests.
