Trane AFDH, Руководство по установке

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AFDH-SVN01A-EN 15
Pre-Installation
Installation considerations for remote floor-mounted AFDH
NOTICE:
Excessive cable lengths between AFDH drive and compressor motor!
The variable frequency drive industry recommends that the length of the electrical cables
connecting a drive unit to a motor should be kept to less than 50 feet to protect the motor from
reflected voltage waves that can cause the motor to fail. Cable lengths that exceed 50 feet
between the drive and the motor create the potential for damage to occur to the motor
windings and/or insulation. Trane assumes no responsibility for equipment damage caused by
use of improper cable lengths.
NOTICE:
Route incoming power conduit to the roof of the AFDH cabinet!
The air-cooled AFDH drive is designed to have the incoming power conduit routed vertically into
the unit through the removable conduit connection cover located on the left-hand rear corner of
the cabinet roof. If the starter that is being replaced by the AFDH drive has the incoming power
conduit routed horizontally across the top of the starter, or connected to the side or to the
bottom of the starter cabinet, an electrician will be required to reconfigure the conduit and
wiring. Routing the incoming power conduit into the AFDH cabinet anywhere other than
through the specified location on the cabinet roof, will be considered an unsupported field
modification to the cabinet design.
Important: Other factors that affect the space required to successfully install a remote floor-
mounted AFDH drive include the clearance distances specified by the local electrical
codes. Typical code regulations require an average of 36-inches clearance from the
panel to nonconducting surfaces and 47-inches to a conducting surface. Check and
confirm that when installed, the drive clearances will conform to all local codes. Do
not forget to account for cabinet door swing clearances.
Important: Plan the installation location of a remote floor-mounted AFDH drive to position it in
relation to the chiller compressor motor such that the maximum length of the cables
connecting the drive to the motor will not exceed 50 feet.
Note: Conduit connections to the AFDH for the power output wiring can be made either at the back
of the cabinet or on the top of the cabinet. Which of these options is chosen shall be at the
discretion of the installing electrician.
Note: Refer to the manual section “AFDH Drive Package Specifications,” p. 22 for the dimensions
and weights of all models of AFDH drives”