Routine Cleaning Of Round−Tube Coil Surfaces; Condensate Drain Pan (48/50Pg03−14 Units) - Carrier 48/50PG C03-14 Operation And Service Manual

NOTE: Please see the NOVATION Heat Exchanger Condenser
Service section for specific information on the NOVATION Heat
Exchanger coil.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in damage to
equipment.
Chemical cleaner should NOT be used on the aluminum
NOVATION condenser. Damage to the coil can occur. Only
approved cleaner is recommended.
Routine Cleaning of Round−Tube Coil Surfaces
Monthly cleaning with Totaline environmentally sound coil
cleaner is essential to extend the life of coils. This cleaner is
available from Carrier Replacement parts division as part number
P902-0301 for a one gallon container, and part number P902-0305
for a 5 gallon container. It is recommended that all round−tube
coils, including standard aluminum, pre-coated, copper/copper or
E-coated coils be cleaned with the Totaline environmentally sound
coil cleaner as described below. Coil cleaning should be part of the
unit's regularly scheduled maintenance procedures to ensure long
life of the coil. Failure to clean the coils may result in reduced
durability in the environment.
Avoid the use of:
S coil brighteners
S acid cleaning prior to painting
S high pressure washers
S poor quality water for cleaning
Totaline environmentally sound coil cleaner is non-flammable,
hypoallergenic, non−bacterial,
biodegradable agent that will not harm the coil or surrounding
components such as electrical wiring, painted metal surfaces, or
insulation. Use of non-recommended coil cleaners is strongly
discouraged since coil and unit durability could be affected.
Totaline Environmentally Sound Coil Cleaner Application
Equipment
S 2
1
/ gallon garden sprayer
2
S water rinse with low velocity spray nozzle
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in corrosion and
damage to the unit.
Harsh chemicals, household bleach or acid or basic cleaners
should not be used to clean outdoor or indoor coils of any
kind. These cleaners can be very difficult to rinse out of the
coil and can accelerate corrosion at the fin/tube interface
where dissimilar materials are in contact. If there is dirt
below the surface of the coil, use the Totaline
environmentally sound coil cleaner as described above.
and a USDA accepted
CAUTION
!
UNIT RELIABILITY HAZARD
Failure to follow this caution may result in reduced unit
performance.
High velocity water from a pressure washer, garden hose, or
compressed air should never be used to clean a coil. The
force of the water or air jet will bend the fin edges and
increase airside pressure drop.
Totaline Environmentally Sound Coil Cleaner Application
Instructions
1. Proper eye protection such as safety glasses is
recommended during mixing and application.
2. Remove all surface loaded fibers and dirt with a vacuum
cleaner as described above.
3. Thoroughly wet finned surfaces with clean water and a low
velocity garden hose, being careful not to bend fins.
4. Mix Totaline environmentally sound coil cleaner in a
1
2 / gallon garden sprayer according to the instructions
2
included with the cleaner. The optimum solution
temperature is 100_F.
NOTE: Do NOT USE water in excess of 130_F, as the enzymatic
activity will be destroyed.
5. Thoroughly apply Totaline environmentally sound coil
cleaner solution to all coil surfaces including finned area,
tube sheets and coil headers.
6. Hold garden sprayer nozzle close to finned areas and apply
cleaner with a vertical, up-and-down motion. Avoid
spraying in horizontal pattern to minimize potential for fin
damage.
7. Ensure cleaner thoroughly penetrates deep into finned
areas.
8. Interior and exterior finned areas must be thoroughly
cleaned.
9. Finned surfaces should remain wet with cleaning solution
for 10 minutes.
10. Ensure surfaces are not allowed to dry before rinsing.
Reapplying cleaner as needed to ensure 10-minute
saturation is achieved.
11. Thoroughly rinse all surfaces with low velocity clean water
using downward rinsing motion of water spray nozzle.
Protect fins from damage from the spray nozzle.
Condensate Drain Pan (48/50PG03−14 Units)
Check and clean each year at the start of the cooling season. In
winter, keep drains and traps dry.
To clean the condensate pan:
1. Disconnect condensate drain system from side or bottom
drain connection.
2. Remove and clean trap.
3. Remove 4 screws securing condensate pan access cover to
unit. Save screws and panel.
4. Slide condensate pan out from unit and clean. Pan is made
of non-corrosive plastic. Use a mild cleaner to remove
heavy deposits of dirt and grime.
5. Replace pan in unit.
6. Replace condensate pan access cover with 4 screws saved
from Step 3.
7. Re-attach and prime condensate trap.
8. Connect condensate drainage system.
83