Build the schedule from the exact manual
Copy filter, cleaning, inspection, and qualified-service intervals from the exact owner manual into the blank calendar rather than using a universal schedule. Source: MRCOOL installation and owner manual
Record the date, observed condition, owner-permitted action, and service-provider record for each completed item. Source: MRCOOL installation and owner manual
Do not open electrical compartments or refrigerant components as owner maintenance unless the exact manual explicitly authorizes the action. Source: MRCOOL installation and owner manual