Trane AFDH, Руководство по установке

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50 AFDH-SVN01A-EN
Installation
Input power wire installation
Note: The L1, L2, and L3 input power leads for this unit will be connected to a factory installed
input disconnect circuit breaker inside of the drive cabinet. Verify that the available fault is
less than the 65,000 amps at 480 VAC interrupting rating of this circuit breaker (this
specification is listed on the circuit breaker nameplate) before installing the input power
wiring.
1. Remove the conduit shroud from the cabinet to fully expose the two-piece incoming wire
access door on the top of the cabinet.
2. Remove the access door pieces and take them to another location for marking and drilling the
required wire routing holes for the input wire leads.
a. NOTE: These wire routing holes are the only entry points that should be used for bringing
input power wiring into the drive cabinet.
b. NOTE: In some cases, the top plate with conduit hubs from the original starter may be reused
and installed over the incoming wire access cut-out on the top of the cabinet, in place of the
two-piece access covers.
c. Install the appropriate conduit hubs before reinstalling the access door pieces on top of the
cabinet.
3. Route the input wire leads into the cabinet and connect them to circuit breaker terminals L1, L2,
and L3.
a. The torque specification for these terminal connections is 23 foot-pounds.
Figure 26. Conduit shroud and two-piece incoming wire access cover
1. Removable conduit shroud
2. Two-piece incoming wire access cover (on top of
cabinet behind conduit shroud)