York Single Package Air Conditioner ZT061N00A2A1AAA1A1

Adjust blower speed to specific static and CFM requirements

Adjust belt tension as required

Tighten blower pulley set screws

Tighten motor sheave set screws

Were the set screws re-checked after 10-12 hours of run time?

Verify that the unit is properly phased at the factory.

Is the blower rotating in the correct direction?

Is the compressor rotating in the correct direction?

Measure the amperage of the scroll compressor.

Is the scroll compressor drawing low amperage?

Are the suction and discharge pressures similar?

Is the scroll compressor producing a high noise level?

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 applicable codes

Is the furnace disconnected from the gas supply piping system?

Enter the pressure used for testing the gas supply piping system

Connect a manometer to the outlet pressure port on the gas valve to monitor the manifold pressure

Remove cover screws covering HI and LO pressure adjustment screws

Second Stage Pressure Adjustment

Set thermostat to call for second stage heat and start furnace

Is the second stage manifold pressure within 3.5 IWG ± 0.3?

Gas Connection and Pressure Check

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

Check all joints for leaks using soap solution or other suitable material. NEVER USE A FLAME.