York Single Package Air Conditioner ZT037S00A2A1AAA1A1

Loosen six nuts (top and bottom) A

Ensure nuts (C) are not loosened

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

Enter the deflection distance obtained (in mm)

Enter the deflection force applied

Is the deflection force within the recommended range?

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?

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 greater than 1/2 PSIG?

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.

Adjust blower speed to specific static and CFM requirements

Adjust belt tension as required

Sheave Alignment and Set Screws

Tighten blower pulley set screws

Tighten motor sheave set screws

Re-check set screws after 10-12 hours of run time