York Single Package Air Conditioner ZR150N10A2AAA50124A

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

Loosen six nuts (top and bottom) A

Ensure nuts (C) are not loosened

Use belt tension checker to apply a perpendicular force to one belt at the midpoint of the span

Enter the deflection distance obtained

Enter the deflection force applied

Was the belt tension checked at least two times during the first 24 hours of operation?

Did any retensioning fall between the min. and max. deflection force values?

Review installation for errors, leaks, or undesirable system effects

Ensure only qualified personnel make blower speed changes

Enter existing datum diameter (DD)

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

Close main manual shut-off valve

Open the union fitting upstream of the unit gas valve

Remove screws holding manifold to supports

Disconnect wiring to the gas valve

Remove manifold & gas valve assembly

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

Is the furnace disconnected from the gas supply piping system?

Enter the pressure of the gas supply piping system

Is the pressure of the gas supply piping system equal to or less than 1/2 PSIG?