Table of Contents
Advertisement
Extended Shutdown
Perform the following services whenever the unit is shutdown in excess of three days:
NOTICE: Do not use steam, high-pressure water, or high-pressure air to clean any
component.
•
Disconnect, lock-out, and tag-out the unit.
•
Close the shut-off valve in the make-up water line (supplied by others) and drain the sump and all exposed water piping.
Heat trace all exposed make-up water lines if the water cannot be shut off and external piping cannot be drained.
•
To minimize the risk of biological contamination during shutdown, it is recommended the entire system be drained.
•
Coils must be empty and closed off. For extended shutdown periods coils should be charged with nitrogen at 15 psig in
the field and capped by adding a welded cap. Upon start-up, the coil connections will require cutting.
•
Insert desiccant bags into the control panel to absorb moisture. Seal the control panel for storage
•
Clean all debris, such as leaves and dirt, from the interior and exterior of the unit.
•
Clean and flush the water distribution system and sump.
•
Leave sump drain valve open so rain and melting snow will drain from the unit.
•
Clean the sump strainer and re-install.
•
Cover the fan discharge to keep out dirt and debris.
•
Inspect the protective finish on the unit. Clean and refinish as required.
•
Start-up and operate fan motors at full speed for at least three hours once a month to move the bearings and allow any
condensate that may have ingressed to evaporate
TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual – Unit Operation & Storage
Page | 97
Advertisement
Table of Contents
