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TrilliumSeries™ Adiabatic
Cooler - TRF Rigging & Assembly Instructions
–
Installation
Page | 13
Flange Coil Connections
Units configured with flange coil connections are supplied with class 150 floating flanges. Refer to unit submittal drawings for
flange size. For shipment, sheet metal blanks are zip tied to floating flanges to secure flanges and to seal off the coil
connection. Remove zip ties and sheet metal blank prior to installation. Install flanges according to ASTM B16.5.
Plain Pipe Stub Coil Connections Nitrogen Charge Removal
To better protect the inside coil surface from corrosion, coils supplied with a plain pipe stub coil connection are capped and
charged with nitrogen from the factory. Plain pipe stub coil connections must be field cut and beveled before welding. Prior to
cutting the pipe stub relieve the pressure inside each coil using the factory installed Schrader valve.
NOTICE:
The pre-cooler pads are made of flammable material and should be removed when
performing hot work on or near the unit. No actions that can generate sparks should be
performed on or near the unit.
NOTICE:
To prevent excessive degradation do not attempt to remove the pre-cooler pads while
wet.
Wiring and Electrical Information
Electrical Power Quality
This unit requires clean electrical power to operate properly. Voltage and frequency should be within 10% of the designed
voltage for the unit. Failure to provide this power may damage the unit. The controls wiring should be provided in a separate
conduit from any power wiring. It is recommended to use shielded wire to avoid interference. Refer to the unit submittal
package for wiring and electrical information.
Power Connections
Please ensure that the correct voltage is supplied to the unit. C
heck your unit’s submittal to verify that the provided power
matches your unit. The enclosure includes a pre-punched hole for the power supply connection. This hole will be plugged with
a NEMA 4/IP66 rated plug. Remove the plug and be sure to use proper sealing methods to comply with NEMA standards. This
will maintain the panel’s NEMA 4 rating and prevent water ingression to the unit.
DANGER:
Incoming power lines to the disconnect switch remain energized. To prevent
electrocution, which is likely to cause severe injury or death take proper electrical precautions
when working near energized equipment.
NOTICE:
When connecting power to the unit, do not penetrate the control panel. Doing so may
allow moisture to enter the panel. All cable and conduit should be supported separately from the
unit. Do not penetrate the unit for supports or other connections.