York Single Package Cooling Unit ZD-A6J00A2A1AAA1A1

Open the main shut-off valve to admit normal gas pressure to the mains.

Check all joints for leaks using a soap solution or other suitable material.

Check that all filters are in place and clean

Clean or replace filters if necessary

Are the filters installed ahead of the evaporator coil?

Is the unit operating with filters properly installed?

Inspect the unit for possible damage during transit.

Note the extent of any damage on the carrier’s freight bill.

Request inspection by the carrier’s agent in writing.

Ensure installation complies with enclosed instructions and applicable codes.

Is the furnace and its shut-off valve disconnected from the gas supply piping system?

Loosen six nuts (top and bottom) A

Ensure nuts (C) are not loosened

Measure deflection distance using belt tension checker

Enter the deflection force applied

Is the deflection force within the recommended range?

Re-tighten nuts (A) after adjustment

Use special pipe dope for assembly

Clean piping of dirt and scale by hammering on the outside of the pipe

Blow out loose particles from the pipe

Ensure all gas lines external to the unit have been purged of air