MAL John Day Tree Cooler Maintenance

Perform the maintenance and repairs necessary for the John Day Tree Coolers glycol-based refrigeration system (including humidity control and fans) to keep the tree cooler at the appropriate temperature and humidity to store tree seedlings for the duration of planting season. The John Day Tree Cooler is needed for keeping conifer seedlings refrigerated at the proper temperature and humidity throughout the duration of planting season, generally in the springtime between mid-March through the end of June. This cooler has been in operation since 1982 with the current glycol-based refrigeration system updated in parts and pieces since then. It features a glycol refrigerant tank and system, humidifier, a large control panel for the glycol and humidity systems, and two large fan systems based ou