York XT AHU - SECTION 2 - START-UP AND OPERATION; BEFORE START-UP INSPECTION

JOHNSON CONTROLS
15
FORM 102.20-OM2
ISSUE DATE: 6/01/2015
2
SECTION 2 - START-UP AND OPERATION
• All shipping splits are sealed and secured
properly.
• For outdoor AHUs, Pipe chase floor is sealed
at penetrations.
• All shipping bolts and other materials were
removed.
• Visually inspect the roof curb for tight seal around
the outdoor AHU.
• Ensurecleanairltersareinstalledandsecured.
properly.
• Inspectalleldprovidedwiringcompletely.
• Do not remove the functional bolts from the seis-
mic isolators as shown in Figure 1 on page 15.
FIGURE 1 - SOLUTION XT SEISMIC ISOLATOR
LD09636a
• Ensure the damper linkage is tight and is in the
correct power off position.
• If the return air dampers are closed, loosen the
actuator or crank arm on the jackshaft, open the
dampers, and retighten the actuator or crank arm.
• Verify the following controls installation are com-
plete:
• Contractor Furnished Controls - Controls
contractor is responsible for safe and proper
control of the AHU.
• Factory Furnished Controls - Refer to the
Factory Engineered Controls/Factory Pack-
aged Controls (FEC/FPC).
• Make sure the termination chart is attached to the
inside of the control enclosure door as shown in
Figure 2 on page 16.
Never use silicone caulk/sealant or caulk/
sealant containing silicone in or on any
air handling equipment.
BEFORE START-UP
Perform a general inspection. Identify and perform the
appropriate the lock out/tag out and safety rules. Re-
fer to the AHU Start-up Checklist, (Form 100.00.CL1)
provided with the information package shipped with
the AHU.
For more information about the steps below, refer to
the Solution XT - Installation and Assembly Manual
(Form 102.20-N1) and Custom AHU - Installation and
Assembly Manual (Form 102.20-N3). For an AHU
equipped with a Variable Frequency Drive (VFD), re-
fer to the specific VFD literature for additional start-up
requirements.
• Check for damage to the AHU's interior and ex-
terior.
• Ensure the terminal screws and wiring connec-
tions are secure in the control, electric and air
modulator panels.
• Verify that the:
• Equipment was received as ordered.
• AHU was installed on flat and level surface
and with proper clearances.
• Air hoods are installed properly.
• Condensate drains are properly trapped.
• All wiring and tubing connections are com-
plete at shipping splits.
• All field piping connections are completed.
• All shipped loose parts are installed.
• All ductwork is complete and available for
full airflow.
• Installer removed all dirt, debris, hardware,
mold, etc. from interior of the AHU and its
ducts.
• Filter gauge is set to zero.