Carrier 50TCN120 Instrucciones De Instalación página 47

FAN MOTOR BEARINGS – The fan motor bearings
are permanently lubricated. No additional
lubrication is required. Neither the lubrication of
the evaporator or condenser fan motors is required.
Evaporator and Motor Fan
NOTE: All the motors are pre-lubricated. Do not
try to lubricate such motors.
In order to enlarge the useful life, the cost-effective
operation and the continuous effi ciency, clean the
dirt and grease accumulated in the fan and motor
once a year.
Interrupt the power supply to the unit before
cleaning the motor and the fan wheel. The
non-compliance with these warnings can result
in personal injuries or death.
Evaporator Air Flow
The heating/cooling air fl ow does not need to be
controlled, except is there is a suspicion of an
improper performance. If there is any problem,
ensure the return and supply air grids are open,
free from obstructions and that the air fi lter is
clean. Refer to the sections Air Flow Adjustments
and Outside Air Flow to check the air fl ow of the
system.
Cleaning - Inspect the unit inside at the beginning
of each heating or cooling season, as well as
whenever the operating conditions require.
EVAPORATOR COIL
1. Interrupt the power supply to the unit. Remove
the access panel to the evaporator
2. If the economizer is installed, remove it by
disconnecting the Mólex cap and removing the
assembly screws of the economizer. Slide the
fi lters to the outside of the unit.
3. Clean the coil by spraying a commercial cleaner
or a detergent. Wash both sides of the coil and
rinse with clean water. For better results, rinse
again up to the return air section in order
to remove the external material. Rinse the
condensate panels after fi nishing.
4. Re-install the economizer and the fi lters.
5. Reconnect the wiring.
6. Replace the access panels.
CONDENSER COIL
Check the coil on a monthly basis. Clean the
condenser coil on an annual basis and whenever
necessary depending on the conditions of the
outside air and the place.
Two-Row Coil Cleaning - Clean the coils as
follows:
1. Interrupt the power supply to the unit.
2. Remove the screws of the to panel in the
condenser end of the unit. See Picture 16.
3. Remove the condenser coil of the posterior
corner. In order to keep the top panel open,
place the coil of the rear corner between
the to panel and the posterior center. See
Picture 17.
4. Remove the screws that fasten the coil to the
posterior center.
5. Remove the latch that keeps together the coil
sections at the return end of the condenser
coil. Carefully keep the outside coil section 75
to 100 mm away from the inside coil section.
See Picture 18.
6. Use a hose or another equipment proper to
clean between the 2 coil sections in order to
remove the dirt and waste. Clean the outside
surfaces with a hard brush as usual.
7. Put together the outside and inside coil rows
with a factory-supplied lock.
8. Replace the outside coil section and remove
the coil from the rear corner between the top
panel and the posterior center.
9. Reinstall the coil of the posterior corner.
10. Replace all the screws.
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