AAON F1-024, Installation, Operation & Maintenance Manual

Page: 27 / 56

27
Electric Heat Section Procedures
1. Perform final visual inspection.
Check all equipment ductwork and
piping to verify that all work is
complete.
Improperly installed
equipment or ductwork can affect
readings.
2. Ensure that there is no construction
debris in the unit.
3. Check the unit for external damage.
4. Note all accessories installed.
5. Install a filter of the proper size and
type.
6. Check all terminal blocks, fuses, fuse
blocks,
and contactors for
correctness.
7. Check all high and low voltage
wiring connections for correctness,
and tightness.
8. Check unit for correct incoming
voltage per the data plate.
9. Turn the power on.
10. Turn on the first stage of heating
Check amp draw of each element of each
stage.
Ensure blower started with electric heat.
Check for temperature rise across heating
section while all stages are on.
If temperature rise is within range, turn all
heating calls off.
Check to see that fan stops.
Refrigerant Cooling Section Procedures
1.
Perform final visual inspection. Check
all equipment, ductwork and piping to
verify that all work is complete, and
equipment is properly installed and
mounted.
Improperly installed
equipment or ductwork can affect
readings.
2. Perform condensing unit start-up checks
in addition to these air handling unit
checks
according to the unit
manufacturer’s instructions.
3. Ensure that there is no construction
debris in the unit.
4. Check the unit for external damage.
5. Install filter of the proper size and type.
6. Ensure that drain P-trap is installed.
7. Check all terminal blocks, fuses, fuse
blocks, disconnect box, and contactors
for correctness.
8. Check all high and low voltage wiring
connections for tightness. Check unit for
correct incoming voltage per the data
plate.
9. Check the security of the locking system
on all blower bearings.
10. Turn the power on.
11. Check and record ambient temperature.
12. Check for guaranteed off timers (GOT),
and/or time delay relays (TDR).
13. Start the first step cooling circuit, and
blower circuit.
Do not alter factory wiring. Deviation
from the supplied wiring diagram will
void all warranties, and may result in
equipment
damage or personal
injury. Contact the factory with wiring
discrepancies.
WARNING