Mechanical Installation Of A Direct-Mounted D-Frame Afdh - Trane AFDH Installation Instructions Manual

Installation
Figure 28. Leveling the AFDH drive cabinet against the
Z-bracket
1. Adjust position of angle iron clips on evaporator brackets to bring
the drive cabinet back level vertically against the Z-bracket flange.
Mechanical Installation of a
Direct-Mounted D-Frame AFDH
WARNING
Heavy Objects!
Failure to follow instructions below or properly lift unit
could result in unit dropping and possibly crushing
operator/technician which could result in death or
serious injury, and equipment or property-only damage.
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift.
WARNING
Improper Unit Lift!
Failure to properly lift unit could result in unit dropping
and possibly crushing operator/technician which could
result in death or serious injury, and equipment or
property-only damage. An AFDH cabinet assembly is
top heavy. Test lift unit approximately 24 inches to
verify proper center of gravity lift point. To avoid
dropping of unit, reposition lifting point if unit is not
level.
44
NOTICE:
Improper Unit Lowering!
Do not drop the drive cabinet assembly onto the
evaporator mounting brackets when setting it into
position! Dropping the cabinet onto the brackets could
result in damage to the drive cabinet, the brackets,
and/or the evaporator shell.
1. Prepare lifting equipment and rigging.
a. Depending upon the model type, a unit-mounted
AFDH can weigh up to 1400 pounds. Confirm the
weight of the AFDH drive. See
Table 7.
b. Verify that the intended lifting device and rigging
has the capacity to safely handle the load before
hooking up to the two factory provided lifting points
on top of the cabinet assembly.
c. Use the appropriate rigging techniques to ensure
that the cabinet assembly will be balanced about its
center of gravity during lifting. Refer to
"Recommended Rigging and Lifting Procedures for
AFDH Drive Units," p.
2. Implement safe lifting practices, carefully lift the
cabinet and position it over the mounting brackets on
the evaporator.Slowly lower the cabinet until the AFDH
panel flush and lineup with the motor terminal access
bolt pattern.
3. Reuse the motor terminal access bolts and bolt the
cabinet to the motor at the motor terminal. Do NOT
place the full weight of the cabinet onto the brackets at
this time. Keep tension on the lift rigging to support the
weight of the cabinet.
4. The 400 frame motor requires an adapter plate to cover
the excess gap at the AFDH drive motor terminal
access opening.
Table 5, Table 6 and
17.
AFDH-SVN005B-EN