Maintenance - Trane CTA 7 Series Installation Owner Diagnostics

WARNING:
ELECTRICAL HAZARD!
The maintenance and trouble-
shooting procedures recommend-
ed in this section of the manual
could result in exposure to electri-
cal mechanical or other potential
safety hazards. Always refer to
the safety warnings provided
throughout this manual concern-
ing these procedures. When possi-
ble, disconnect all electrical
power including remote discon-
nects before servicing. Follow
proper lockout/tagout procedures
to ensure the power can not be in-
advertently energized. When nec-
essary to work with live electrical
components, have a qualified li-
censed electrician or other indi-
vidual who has been trained in
handling live electrical compo-
nents perform these tasks. Failure
to follow all of the recommended
safety warnings provided, could
result in death or serious injury.
SS-SVN11A-EN

Maintenance

Maintenance
Perform all of the indicated mainte-
nance procedures at the
intervals scheduled. This will prolong
the life of the unit and reduce the pos-
sibility of costly equipment failure.
Monthly
Conduct the following maintenance
inspections once per month.
WARNING:
HAZARDOUS VOLTAGE!
Disconnect all electric power, in-
cluding remote disconnects be-
fore servicing. Follow proper
lockout/tagout procedures to en-
sure the power can not be inad-
vertently energized. Failure to
disconnect power before servic-
ing could result in death or seri-
ous injury.
1. Inspect air filters and clean if neces-
sary.
2. Check unit wiring to ensure all con-
nections are tight and that the wir-
ing insulation is intact.
3. Check drain pans and condensate
piping to insure they are free of ob-
stacles.
4. Manually rotate the indoor fan to in-
sure proper operation.
5. Inspect the evaporator and con-
denser coils for dirt and debris. If the
coils appear dirty, clean them.
6. With the unit operating in the cool-
ing mode, check the suction and dis-
charge pressures. Record these
readings on the "Maintenance
Log."
7. Observe indoor fan operation and
correct any unusual or excessive vi-
bration. Clean blower wheels as
needed.
Annually (Cooling Season)
The following maintenance proce-
dures must be performed at the begin-
ning of each cooling season to insure
efficient unit operation.
1. Perform all of the monthly mainte-
nance inspections.
2. With the unit operating, check unit
superheat and record the reading in
the Maintenance Log.
3. Remove any accumulation of dust
and/or dirt from the unit casing.
4. Remove corrosion from any surface
and repaint. Check the gasket
around the control panel door to in-
sure it fits correctly and is in good
condition to prevent water leakage.
5. Inspect the evaporator fan belt. If it
is worn or frayed, replace it.
6. Inspect the control panel wiring to
insure that all connections are tight
and that the insulation is intact.
7. Check refrigerant piping and fittings
for leaks.
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