Cooling Season Check List for Next Gen Precedent Units

• Check the unit’s drain pans and condensate piping to
ensure that there are no blockages.
• Inspect the evaporator and condenser coils for dirt,
bent fins, etc. If the coils appear dirty, clean them
according to the instructions described in “Coil
Cleaning” later in this section.
• Manually rotate the condenser fans to ensure free
movement and check motor bearings for wear. Verify
that all of the fan mounting hardware is tight.
• Inspect the F/A-R/A damper hinges and pins to ensure
that all moving parts are securely mounted. Keep the
blades clean as necessary.
• Verify that all damper linkages move freely; lubricate
with white grease, if necessary.
• Check supply fan motor bearings; repair or replace the
motor as necessary.
• Verify that all wire terminal connections are tight.
• Remove any corrosion present on the exterior surfaces
of the unit and repaint these areas.
• Generally inspect the unit for unusual conditions (e.g.,
loose access panels, leaking piping connections, etc.)
• Make sure that all retaining screws are reinstalled in the
unit access panels once these checks are complete.
• With the unit running, check and record the following:
– ambient temperature
– compressor suction and discharge pressures (each
circuit)
– superheat (each circuit)