Trane AM4A0A18S11SA Series, Installation, Operation And Maintenance Manual

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CLCH-SVX07C-EN 103
Start-Up
Fan-Related Checks
• If the unit is not externally isolated, ensure that the fan isolator tie-down bolts have been
removed. See
“Fan Isolation” section on page 61 for more information.
• Rotate all fan wheels manually to confirm they turn freely in the proper direction.
• Check fan shaft bearings, fan wheel, and drive sheave set screws for proper torque settings (see
Table 26 on page 108 .
– Fan sheaves should be tight and aligned.
– Bearing set screws should be torqued. See Table 37 on page 124 for torque values.
• Check fan drive belt tension. See “Tension the Fan Belt” section on page 106 .
• Inspect fan motor and bearings for proper lubrication, if necessary. See “Fan Bearing
Lubrication” on page 123 .
Coil-Related Checks
NOTICE:
Proper Water Treatment!
The use of untreated or improperly treated water in coils could result in scaling, erosion,
corrosion, algae or slime. It is recommended that the services of a qualified water treatment
specialist be engaged to determine what water treatment, if any, is required. Trane assumes no
responsibility for equipment failures which result from untreated or improperly treated water, or
saline or brackish water.
• Ensure coil and condensate drain piping connections are complete.
• Check the piping and valves for leaks.
– Open or close the valves to check operation.
– The drain lines should be open.
• If unit has a refrigerant coil, ensure that it has been charged and leak-tested according to the
instructions provided with the condenser equipment. Adjust the superheat setting.
• Remove all foreign material from the drain pan and check the pan opening and condensate line
for obstructions.
• For steam coils, slowly turn the steam on full for at least 10 minutes before opening the fresh
air intake on units with fresh air dampers.