The document provides maintenance procedures for an absorption chiller. It outlines daily, weekly, and seasonal maintenance tasks to be performed by operators and service engineers. These include inspecting equipment operation, recording data, checking for abnormal noises, performing purging, and conducting external visual inspections. Seasonal maintenance also involves sampling absorbent, checking water quality, and cleaning condenser tubes if contamination is detected. Proper management of the absorbent solution and cooling water quality are emphasized to prevent corrosion and scale buildup issues.