Trane Precedent FIAEHTB309 Series, Installation Instructions Manual, Page: 7 / 16

ACC-SVN228B-EN 7
Installation
Precedent 6 to 12.5 Tons
Inspection
1. Unpack all components of the kit.
2. Check carefully for shipping damage. If any damage is
found, report it immediately, and file a claim against the
transportation company.
3. Check the heater nameplate model number and compare
with the electrical data tables. Ensure that the available
power supply and unit model number complies with the
particular heater being used.
1. Remove heater compartment access panel and unit
control box access panel. See Figure 1 .
Note: On downflow units with or without duct work installed or
horizontal units without ductwork installed, remove
horizontal supply cover from the rear of the heater
compartment.
2. Remove insulation to expose perimeter of removable
panel in the vestibule panel. See Figure 1 .
3. Clip or cut the retaining tabs around the perimeter of the
removable panel.
4. Remove the panel.
5. Check the opening in the vestibule panel. Remove any
metal burrs or slivers that could damage or pinch the
heater elements resulting in a short circuit when elements
are installed in the opening.
Note: Locator tabs on the vestibule panel support the electric
heat assembly and secure the inward edge of the
electric heat accessory control panel. Slits in the
insulation should allow the tabs to protrude through the
insulation and be visible. It may be necessary to work
the insulation back from the tabs and slightly bend the
tabs outward if difficulty is encountered engaging the
electric heater panel or the electric heat accessory
control panel. See
Figure 2 .
6. The electric heater element assembly has BOTTOM
stamped in the mounting panel to identify the proper
position for mounting.
7. Slide heater assembly along guide rails until heater is fully
seated in opening.
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
Figure 1. Control covers and access panels
Horizontal
Supply
Cover
Control
Box
Access
Panel
Removable
Insulation
Removable
Panel
Heat
Section
Access
Panel
Figure 2. Electric heater element panel
Figure 3. Electric heater assembly
LOCATOR
TABS