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Detailed Component
Maintenance
Pre-Cooler Pad and Water
System Maintenance
Scaling & Fouling
Pre-Cooler Pad Removal
Water Distribution System
Maintenance
TSDC Only
TSDC2 ans TSDF2 Only
Water Distribution System Maintenance
TSDC Only
To inspect the water distribution system quarterly, unlatch the quick release clasps and lift
spray branch covers. Water is distributed through a corrosion resistant polyvinyl chloride
(PVC) spray distribution system.
The inspection procedure is as follows:
• Make sure the unit is operating in Pre-Cooler Mode.
• Check to see if the distribution is spraying consistently.
• Clean any clogged holes. If additional cleaning is necessary, both ends of the
distribution header can be removed by carefully unscrewing the ends
• Open the access hatch and verify there are no leaks in the water distribution system.
TSDC2 ans TSDF2 Only
To inspect the water distribution system quarterly, unscrew the knobs and lift the hinged
cover. Water is distributed through a Type 304 stainless steel gutter distribution system.
The inspection procedure is as follows:
• Make sure the unit is operating in Pre-Cooler Mode.
• Check to see if the distribution is spraying consistently.
• Clean any clogged holes. If additional cleaning is necessary, use a clean piece of cloth
to remove any dirt or debris from the gutter.
NOTICE: Do not use steam, high
pressure water, or high pressure air
to clean any component.
Figure 31. Pre-Cooler Pad Cover
Figure 32. Clean Dirt and Debris From Gutter (Callout #1)
NOTE: If the unit is operating in
dry mode, force the unit into the
correct mode by placing a hand
over the temperature sensor at
the bottom of the control panel or
temporarily lower the switchpoint
in the controller until the make-up
valve opens.
• Reinstall the pads in reverse order:
– TSDC: Note that one of the Pre-Cooler Pads is smaller than the others and must
be returned to the designated location. Ensure the smaller pad is installed per the
location indicated on the yellow label.
– TSDC2 and TSDF2: Note that the blue-colored side of the pad faces outward and
that all Pre-Cooler Pads are the same size.
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