This manual provides installation guidelines, commissioning steps, maintenance procedures and technical specifications for the UNICAL UN 003 II ELLPREX boiler.
The document contains safety warnings, general information and detailed instructions for installing, commissioning and servicing the UNICAL UN 003 II boiler series. It emphasizes that all installation and first‑time start‑up work must be performed by authorized and professionally qualified personnel.
Technical sections describe the boiler construction, material specifications, hydraulic and electrical connections, control panel wiring, and the required clearances and ventilation for safe operation. The manual also lists the CE certifications and the applicable European directives.
| Boiler metal material | S235JRG2 carbon steel |
|---|---|
| Pipe material | ST 37.0 steel |
| External insulation thickness | 80 mm glass‑wool pad |
When the door is opened 90°, the distance between the door front and the adjacent wall must be at least equal to the burner length.