York Single Package Air Conditioner ZT061P00A2A1AAA1A1

Ensure all necessary safety equipment is worn

Verify that a special pipe dope is used for assembling pipes

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

Use a commercially available soap solution to check all joints for leaks

Check that all filters are in place

Replace filters if cleaning is not possible

Ensure filters are installed ahead of evaporator coil

Verify filters are of the correct size and type

Close main manual shut-off valve

Open the union fitting upstream of the unit gas valve and downstream from the main manual shut-off valve

Remove screws holding each end of the manifold to the manifold supports

Disconnect wiring to the gas valve

Remove the manifold & gas valve assembly

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

Blow out loose particles from the piping.

Have all gas lines external to the unit been purged of air?

Inspect the unit for visible 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 all relevant codes

Is the furnace disconnected from the gas supply piping system?