Table of Contents
Advertisement
Start-Up
Pre-Startup Checklist
Once the air handler has been assembled and installed,
attention must be directed to individual components for proper
operation. Before operating the unit, complete the pre-startup
checklist.
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer's
literature for allowable waiting periods for discharge of
capacitors. Verify with a CAT III or IV voltmeter rated per
NFPA 70E that all capacitors have discharged.
General Checks
•
Ensure the unit has been installed level.
•
Ensure supply-air and return-air ducts have been
connected.
•
Ensure damper operator motors and connecting linkage
have been installed.
•
Verify damper operation and linkage alignment.
•
Check that air filters are in place and positioned properly.
•
Remove any debris from the unit interior.
•
Remove all foreign material from the drain pan and check
drain pan opening and condensate line for obstructions.
•
Close and secure all unit access doors.
•
If differential pressure switch is provided on filter rack,
adjust per system requirements.
•
Inspect electrical connections to the unit
– Connections should be clean and secure.
– Compare the actual wiring with the unit diagrams.
CLCH-SVX009L-EN
•
Check piping and valves for leaks. Open or close the
valves to check for proper operation. Drain lines should be
open.
•
Leave this manual with the unit.
Fan-Related Checks
•
For supply fans, if the unit is not externally isolated, ensure
that the fan isolator tie-down bolts have been removed.
See
"Remove Shipping Tie-Downs," p. 21
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
page
64.
– Fan sheaves should be tight and aligned.
•
Check fan drive belt tension. See
section on page
62.
•
Inspect fan motor and bearings for proper lubrication, if
necessary. See
"Fan Bearing Lubrication," p.
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.
for more
Table 17 on
"Tension the Fan Belt"
73.
59
Advertisement
Table of Contents
