The following installation manuals are available for the Lira range:
Lira air to air heat pump - Installation Manual - May 2026 - https://www.reznor.co.uk/wp-content/uploads/2026/05/D301765-Issue-2-Reznor-Installation-Manual-Lira-air-to-air-heat-pump-EN-2026-05.pdf
Lira air to air heat pump - Installation Manual - October 2025 - https://www.reznor.co.uk/wp-content/uploads/2025/10/D301765-Reznor-Installation-Manual-Lira-air-to-air-heat-pump-EN-2025-10-Issue-1.pdf