Control Panel Removal; Unit-Mounted Starter Removal - Trane CenTraVac CDHG Series Installation Manual

Control Panel Removal

WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious
injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by
Trane or others, refer to the appropriate
manufacturer's literature for allowable waiting periods
for discharge of capacitors. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
Use the following steps to remove the control panel if
additional horizontal clearance is required.
1. Mark and disconnect incoming wiring to the control
panel.
2. Remove the bolts from the bottom of the panel which
secure the panel to the lower mounting bracket.
3. Loosen the bolts on the back of the panel which secure
the panel to the top (suction elbow) mounting bracket.
See Figure 18, p. 29.
Figure 18. Control panel mounting bracket
4. Two people will be needed to lift the panel clear of the
chiller. Refer to Table 11, p. 20
Steady the panel as the top retaining bolts are
removed. Then lift the panel clear. Store the panel in a
clean dry area.
5. Use the reverse order to reassemble the control panel.

Unit-mounted Starter Removal

Additional horizontal and vertical clearances may be
obtained by removing the unit-mounted starter on chillers
so equipped. See Figure 19, p. 29
CVHE-SVN04R-EN
for control panel weight.
and Figure 20, p. 29.
Note: Unless otherwise stated, lift only vertically on starter-
provided devices. Refer to all starter-related
manuals prior to lifting. If needed, use a spreader
bar to avoid angles in chains and reduce required
lifting height clearance.
Figure 19. Unit-mounted starter
Figure 20. Starter mounting bracket
The following procedure assumes the chiller is new and
has never been installed and therefore there is no electrical
power connected to the chiller. If there is power to the unit,
follow proper lockout/tagout procedures, and any other
applicable safety regulations regarding electric power.
Disassembly
29