Trane AM4A0A18S11SA Series, Installation, Operation And Maintenance Manual

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48 CLCH-SVX07C-EN
Installation - Mechanical
External Raceway Assembly
For air handling units with factory-installed power wiring extending from the first level to the
second level, wiring must be connected and assembled in a raceway.
1. Remove protective foam cover from connectors.
2. Attach stacked raceway harness connectors, matching connector colors on the high voltage
side and connector numbers on the low voltage side.
3. Verify conduit size.
4. Attach covers.
5. Secure conduit.
Figure 38. External raceway
Cut zip-ties
Step 1
Match connector
numbers (LV side)
Match connector
colors (HV side)
High-voltage (HV)
stacked harness
Low-voltage (LV)
stacked harness
Step 2
Verify if conduit is
1-inch or 2-inch for
stacked harness
Use for 1-inch stacked
raceway conduit
Use for 2-inch stacked
raceway conduit (requires
removal of knockout)
Cover
Conduit
Step 3
Wrap around
conduit when
attaching cover
Screw; 10-16 x 0.75
self-driller
Enclosure;
stacked raceway
Step 4
Tie; 0.25 wire -
screw type
Screw;
.250-14 x 0.75
self-driller
Space tie downs
no greater than
10 inches. Also
locate cut-screw
behind conduit
Step 5