Install Shorting Buss Bars; Input Power Wire Installation - Trane CVHE Installation Instructions Manual

Installation
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

Note: Shorting buss bars must be installed since the
AFDH is a three-lead device while the starter was a
six-lead device. The wires must be connected
(shorted) at both ends (at the AFDH and at the
motor terminals) to ensure that there is no
difference in potential between the two paired
leads caused by different wire lengths. Some
existing starters may have this done already.
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.
34
Figure 18. 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. 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.
Notes:
• These wire routing holes are the only entry points
that should be used for bringing input power wiring
into the drive cabinet.
• 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.
AFDH-SVN02D-EN