Install Shorting Buss Bars (Unit Mount Only); Input Power Wire Installation - Trane AFDH Installation Instructions Manual

unsupported field modification to the
cabinet design.
NOTICE:
Keep Dirt, Debris, or Metal Filings From
Entering the Drive Cabinet!
Failure to observe the appropriate precautions could
result in damage to the electrical components when
they are energized for the first time. Take all
precautions necessary to prevent any dirt, debris, or
metal filings from entering into the drive cabinet during
the installation process.
Install Shorting Buss Bars (Unit Mount
Only)
Note: Shorting buss bars must be installed since the
AFDH is a three-lead device while the starter was a
six-lead device.
1. Remove the motor terminal lug from all six terminals
on the compressor motor terminal board.
2. Install the three buss bars provided, one each between
the following motor terminal pairs:
a. T1 - T6
b. T2 - T4
c. T3 - T5
3. Reinstall all of the motor terminal lugs.
AFDH-SVN005B-EN
Figure 30. Buss bar installation on compressor motor
terminal board
1. Compressor motor terminal board
2. Remove motor terminal lugs (from all 6 terminals).
3. Install shorting buss bars across the motor terminal pairs as
shown.
4. Motor terminal lugs reinstalled

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.
1. D-Frame Only: 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.
Note: These wire routing holes are the only entry
points that should be used for bringing input
power wiring into the drive cabinet.
Installation
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