Trane AM4A0A18S11SA Series, Installation, Operation And Maintenance Manual

Page: 106 / 251

102 CLCH-SVX07C-EN
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!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the equipment 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 an appropriate voltmeter that all capacitors have discharged. Failure to
disconnect power and discharge capacitors before servicing could result in death or serious
injury.
Note: For additional information regarding the safe discharge of capacitors, see
PROD-SVB06A-EN or PROD-SVB06A-FR
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 and unit controllers.
– Connections should be clean and secure.
– Compare the actual wiring with the unit diagrams.
– Reference the appropriate controller manual for more details about starting units with
factory-mounted controls.
• 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.