4 - CHECKLIST OF START-UP CHECK POINTS
The table below shows a general overview of the planning required to facilitate the installation of the AHU. The
following pages give a more detailed description of the individual
4.1
PRELIMINARY INFORMATION
4.2
PRE-START-UP
PRE-START-UP Checklist
Yes
No
NA
Remove packaging and any construction debris.
Internal and external panels are in good condition – no damage.
Are damper operations correct?
Are proper air filters in place?
Is heating coil, if any, in correct connection side?
Is cooling coil, if any, in correct connection side?
Is there any leakage in the cooling coil?
Is the droplet eliminator, if required, already installed?
Has water been placed in drain pan to confirm proper drainage?
Insure drain trap connections / dimensions are correct.
Insure the heat wheel is rotating in correct direction.
Insure the heat wheel sealing is correctly installed.
Insure the heat wheel gasket is correctly installed.
Remove fan transport brackets
Untighten spring isolator bolt
Check fan bearings and shaft(s) for tightness.
Hand turn fan to ensure no rubbing with housing.
Have fan and motor pulleys been checked for proper alignment?
Do the fan belts have proper tension?
Are all wiring terminals to fan motors and heaters tight?
Is duct connected to unit in proper way? ( straight duct after fan discharge is 2.5 fan diameter )
Verify wiring is correct for application (voltage, etc.) per component label.
4.3
START-UP
If this unit is used for construction conditioning without ductwork, ensure balancing is redone and filters replaced once
construction is complete.
•
Verify wiring is correct for application (voltage, etc.) per component label.
•
Ensure correct fan rotation.
•
Ensure all water inside air handler is in condensate pan.
•
Check for vibration levels.
•
After air and water balance and at least 10 minutes running time, record the following measurements:
NOTES:
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MODEL NO.
JOB NAME
SERIAL NO.
START-UP DATE
AHU LOCATION Indoor ( ) Outdoor ( )
TECHNICIAN NAME
ADDITIONAL ACCESSORIES
Check indoor fan speed RPM
Entering / Leaving water temp.
Air Entering Condition ( DB / RH / WB)
Air Leaving Condition ( DB / RH / WB)
Before starting up the AHU ensure that the components have the correct connection
voltage and connect them in accordance with the regulations. The doors and access covers
must be closed and the AHU must be earthed.
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