York Single Package Air Conditioner ZT037C00A2A1AAA1A1

Review installation for errors, leaks, or undesirable system effects

Are there any installation errors or leaks present?

Enter the existing datum diameter (DD)

Calculate the new datum diameter (DD) using the formula: (Required CFM/Measured CFM)*Existing DD

Has the new datum diameter (DD) been set correctly?

Use a special pipe dope for assembling wrought iron or steel pipe

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

Blow out loose particles from the pipe

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

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?

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. Ensure the following joints are checked:

Was a commercially available soap solution used for leak detection?

Check that all filters are in place

Clean the filters if they are dirty

Replace filters if cleaning is not possible

Ensure filters are installed ahead of evaporator coil

Verify that the correct number and size of filters are installed