Maintenance - Trane TWA Series Installation & Operation Manual

Maintenance

Perform all of the indicated maintenance procedures at the
intervals scheduled. This will prolong the life of the unit and
reduce the possibility of costly equipment failure.
Monthly
Conduct the following maintenance inspections once per
month.
DISCONNECT TO PREVENT INJURY OR DEATH FROM
ELECTRICAL SHOCK OR CONTACT WITH MOVING
PARTS.
!
1. Inspect air filters and clean if necessary.
2. Check unit wiring to ensure all connections are tight and
that the wiring insulation is intact.
3. Check drain pans and condensate piping to insure they are
free of obstacles.
4. Manually rotate the indoor fan to insure proper operation.
5. Inspect the evaporator and condenser coils for dirt and de-
bris. If the coils appear dirty, clean them.
6. With the unit operating in the cooling mode, check the suc-
tion and discharge pressures and compare them with
Pressure Curve values in unit Service Facts. Record these
readings on the "Maintenance Log."
7. Observe indoor fan operation and correct any unusual or
excessive vibration. Clean blower wheels as needed.
Annually (Cooling Season)
The following maintenance procedures must be performed
at the beginning of each cooling season to insure efficient unit
operation.
1. Perform all of the monthly maintenance 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 insure it fits cor-
rectly and is in good condition to prevent water leakage.
5. Inspect the evaporator fan belt. If it is worn or frayed, re-
place it.
6. Inspect the control panel wiring to insure that all connec-
tions are tight and that the insulation is intact.
Lubricate the indoor fan motor bearing with a non detergent
20-weight oil. (To insure good bearing lubrication, condenser
fan motor bearings should be lubricated once every six
months.)
TWA-SVX01A-EN
Maintenance
OPEN AND LOCK UNIT
Note: Some motors are permanently lubricated.
7. Check refrigerant piping and fittings for leaks.
The following warning complies with State of California law,
Proposition 65.
fiberglass wool insulation! Fiberglass dust and ceramic
fibers are believed by the state of California to cause cancer
through inhalation. Glasswool fibers may also cause
respiratory, skin, or eye irritation.
Precautionary Measures
* Avoid breathing fiberglass dust.
* Use a NIOSH approved dust/mist respirator.
* Avoid contact with the skin or eyes. Wear long-sleeved,
loose-fitting clothing, gloves, and eye protection.
* Wash clothes separately from other clothing: rinse
washer thoroughly.
* Operations such as sawing, blowing, tear-out, and
spraying may generate fiber concentrations requiring
additional respiratory protection. Use the appropriate
NIOSH approved respirator in these situations.
First Aid Measures
Eye Contact - Flush eyes with water to remove dust.
If symptoms persist, seek medical attention.
Skin Contact - Wash affected areas gently with soap
and warm water after handling.
This product contains
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