Marley Aquatower 490A, Руководство пользователя

Страница: 4 / 28

4
Installation
Receiving Inspection
The motor and miscellaneous parts ship with the tower. Check motor
nameplate to be sure that power supply and motor have the same char-
acteristics. Inspect the entire shipment for any damage that may have
occurred in transit.
Tower Location
The cooling tower must be located at such distance and direction to
avoid the possibility of contaminated tower discharge air being drawn
into building fresh air intake ducts. The purchaser should obtain the
services of a Licensed Professional Engineer or Registered Architect
to certify that the location of the tower is in compliance with appli-
cable air pollution, fire, and clean air codes.
Locate so prevailing wind will blow into the louvered face, and direct fan
discharge away from building surfaces. Locate so there is free air flow to
and from the tower. Allow clearance on all sides for maintenance.
Indoor Installation
Use a duct from the tower air discharge to the outside. You may also want
to install an inlet air duct. Do not allow the total pressure loss through
ducts to exceed 0.10 inches H
2
O. To minimize pressure losses:
• Use 20% oversize ducts.
• Avoid sharp turns or abrupt changes in size.
• Keep duct length to a minimum.
• Screened or louvered openings should have a net free area at least
20% greater than the tower discharge opening area.
Attach ducts to the tower using flexible connections, and support ducts
independently from the tower. Provide access openings for servicing the
mechanical equipment if air discharge ducts are installed. If the duct dis-
charges into the prevailing wind, you may need to install a windbreak or an
elbow to serve as a deflector. Ducts installed on towers with year-round
usage should be water tight and insulated to prevent condensation.
Warning
➠