The following installation manuals are available for the Guardian GS & GR range:
D301368 Reznor, Guardian GR and GS Signal Pro, Installation Manual, FR 2025-10, Iss 5 - https://www.reznor.co.uk/wp-content/uploads/2025/10/D301368-Reznor-Guardian-GR-and-GS-Signal-Pro-Installation-Manual-FR-2025-10-Iss-5.pdf
D301369 Reznor, Guardian GR and GS Signal Pro, Installation Manual, NL 2025-10, Iss 5 - https://www.reznor.co.uk/wp-content/uploads/2025/10/D301369-Reznor-Guardian-GR-and-GS-Signal-Pro-Installation-Manual-NL-2025-10-Iss-5.pdf
D301370 Reznor, Guardian GR and GS Signal Pro, Installation Manual, ES 2025-10, D301370 Iss 5 - https://www.reznor.co.uk/wp-content/uploads/2025/10/D301370-Reznor-Guardian-GR-and-GS-Signal-Pro-Installation-Manual-ES-2025-10-Iss-5.pdf
Guardian GR and GS Signal Pro - Installation Manual - October 2025 - https://www.reznor.co.uk/wp-content/uploads/2025/10/D301367-Reznor-Guardian-GR-and-GS-Signal-Pro-Installation-Manual-EN-2025-10-Iss-5.pdf
Guardian Quick Setup Guide - Product Guide - October 2025 - https://www.reznor.co.uk/wp-content/uploads/2025/11/D301671-Reznor-Guardian-Quick-Setup-Guide-EN-2025-10-Iss-1.pdf
Signal Pro Control - Installation Manual - October 2025 - https://www.reznor.co.uk/wp-content/uploads/2025/10/D301515-Reznor-Signal-Pro-Control-Modbus-Manual-EN-2025-10-Issue-1.pdf