Mt3021 Manual Page
Working with electrical controllers requires strict adherence to OSHA electrical safety standards .
: The default operational state where the unit manages heating, cooling, or ventilation based on current demand. Settings/Setpoints mt3021 manual
| Symbol | Meaning | Section | |--------|---------|---------| | ⚡️ | Electrical shock risk – use insulated tools | 1.1 | | 🔥 | High temperature components – allow cooling time before service | 1.2 | | 🧯 | Fire hazard – keep fire‑extinguishers nearby | 1.3 | | 🛡 | Protective equipment required (gloves, safety glasses) | 1.4 | | ⛔️ | Forbidden actions (e.g., operation without ground) | 1.5 | operation without ground) | 1.5 |
