AAON F1-024, Installation, Operation & Maintenance Manual

Page: 26 / 56

26
Startup
General
ONLY QUALIFIED, AUTHORIZED
PERSONNEL SHOULD POWER ON, OR
STARTUP THIS EQUIPMENT.
Before starting up the equipment, building
construction should be complete, and start-
up personnel should:
Have a working knowledge of general
HVAC and mechanical commissioning
procedures and practices.
Be familiar with unit functions, features,
optional unit accessories, and all control
sequences.
Have appropriate literature on hand for
consultation.
Before the structure is occupied, the
installation, and/or startup personnel must
take three essential steps:
1. Check-Out
2. Start-Up
3. Commissioning
Check-Out
Equipment should be thoroughly checked
for loose wiring, a free spinning blower
wheel and well fitting access panels. Air
handling units should not be operated
without proper ductwork and access panels
installed, except as required during start-up
and air balancing.
1.
Check all electrical connections to be
sure they are tight.
2. Open all access panels, and remove all
shipping screws, or restraints.
3. Clean out any debris that may be
present.
4. Check wheel alignment, and tightness of
fan drives.
5. Check bearing locking collars if
provided and fan wheel set screws for
tightness.
6. Turn fan wheels to assure free rotation.
7. Ensure electrical supply matches the unit
nameplate.
8. Ensure condensate lines are correctly
connected.
9. Check local codes for any special
provisions.
10. Replace and/or close all access panels.
Procedures
Note:
Failure to adhere to the following
start-up procedures will void all
manufacturer warranties.
Install gauges, voltmeter and ammeter
before
start-up. Observe refrigerant
pressures during initial operation. Note, and
determine the cause of any excessive sound
or vibration. Follow start-up procedures
outlined below to start each piece of
equipment.
Note: Completed factory test sheets are in
the equipment literature packet shipped
inside the unit. Factory run-test readings
recorded on the test sheets may be helpful to
reference during start-up.
Equipment
operation during
construction is not recommended.
Construction site pollution can affect
unit operation, and seriously degrade
performance.
Operation during
construction will void all
manufacturers’ warranties.
CAUTION