Removing The Existing Vfd And Components; Vfd Removal From Back Panel Assembly - Trane Voyager III Installation Manual

Removing the Existing VFD and Components

The section that follows will give the procedure to remove a TR1 VFD from its panel assembly and
remove the remote keypad in the IntelliPak I, IntelliPak II, and Voyager III main control panels.
Programming parameters are supplied with the VFD and a minimum of five must be set based on
unit specifications, see

VFD Removal from Back Panel Assembly

Locate the existing TR1 VFD unit enclosure near the return and exhaust section as shown in
Figure 1
II Figure 3, p. 6
Identify the correct VFD for replacement. The IntelliPak I and II rooftops can have both supply and
exhaust/return VFDs. The IntelliPak I supply VFD is located on the back panel of the unit enclosure
and the exhaust/return VFD is located on the inner door of the unit enclosure which must be turned
to the open position for the VFD to be removed. The IntelliPak II supply VFD is adjacent to the supply
fan section, and the exhaust/return VFD is adjacent to the exhaust/return fan section. Voyager III
units only have supply VFDs and are located by the supply fan on the opposite side of the unit from
the control panel.
Figure 1. Typical IntelliPak I 20 to 75 ton configuration
VARIABLE FREQUENCY DRIVE VARIABLE FREQUENCY DRIVE
ENCLOSURE ENCLOSURE
SUPPLY FAN VFD SUPPLY FAN VFD
EXHAUST EXHAUST
FAN FAN
VFD VFD
RETURN & EXHAUST SECTION RETURN & EXHAUST SECTION
Figure 2. Typical IntelliPak I 90 to 130 ton configuration
VARIABLE FREQUENCY DRIVE VARIABLE FREQUENCY DRIVE
ENCLOSURE ENCLOSURE
SUPPLY FAN VFD SUPPLY FAN VFD
EXHAUST EXHAUST
FAN FAN
VFD VFD
RETURN & EXHAUST
PART-SVN121A-EN
Table 4, p.
and Figure 2, p. 5 for IntelliPak I units, adjacent to the supply/exhaust sections of IntelliPak
and opposite supply fans on the Voyager III units as shown in
SUPPLY FAN SECTION SUPPLY FAN SECTION
FILTER
SECTION
SUPPLY FAN SECTION
FILTER
SECTION
17.
HEAT SECTION HEAT SECTION
HTG ACCESS
PANEL
HEAT SECTION
ELEC CONTROL ELEC CONTROL
PANEL PANEL
Figure 4, p. 6.
CONDENSER FANS CONDENSER FANS
COMPRESSOR SECTION COMPRESSOR SECTION
CONDENSER FANS
COMPRESSOR SECTION
5