Lubrication - Carrier 48PG03-16 Controls, Start-Up, Operation, Service And Troubleshooting Instructions

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
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.
Filters
Clean or replace at start of each heating and cooling season, or
more often if operating conditions require. Refer to unit
Installation Instructions for type and size.
Outdoor- -Air Inlet Screens
Clean screens with steam or hot water and a mild detergent.
Main Burner
At the beginning of each heating season, inspect for deterioration
or blockage due to corrosion or other causes. Observe the main
burner flames. Refer to Main Burners section.
Flue Gas Passageways
The flue collector box and heat exchanger cells may be inspected
by opening heat section access door (Fig. 8), flue box cover, and
main burner assembly. (See Fig. 42.) Refer to Main Burners
section for burner removal sequence. If cleaning is required, clean
tubes with a wire brush.
Combustion- -Air Blower
Clean periodically to assure proper airflow and heating efficiency.
Inspect blower wheel every fall and periodically during heating
season. For the first heating season, inspect blower wheel
bi-monthly to determine proper cleaning frequency.
To inspect blower wheel, open heat section door. Using a
flashlight, look into the flue exhaust duct to inspect. If cleaning is
required, remove motor and wheel assembly by removing the
screws holding the flue box cover to the flue box. (See Fig. 42.)
Remove the screws holding the inducer housing to the inlet plate.
The wheel can then be removed from the motor shaft and cleaned
with a detergent or solvent. Replace the wheel onto the motor
shaft in the correct position and reassemble the flue cover onto
the flue box.

Lubrication

Compressors
Each compressor is charged with the correct amount of oil at the
factory.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to unit
components.
The compressor is in a Puron refrigerant system and uses a
polyolester (POE) oil. This oil is extremely hygroscopic,
meaning it absorbs water readily. POE oils can absorb 15
times as much water as other oils designed for HCFC and
CFC refrigerants. Avoid exposure of the oil to the
atmosphere.
Polyolester (POE) compressor lubricants are known to cause long
term damage to some synthetic roofing materials. Exposure, even
if immediately cleaned up, may cause roofing materials to
become brittle (leading to cracking) within a year. When
performing any service which may risk exposure of compressor
oil to the roof, take appropriate precautions to protect roofing.
Procedures which risk
replacement, repairing refrigerant leaks, and replacing refrigerant
components. To prepare rooftop:
1. Cover extended roof work area with an impermeable
plastic dropcloth or tarp. Make sure a 10 x 10 ft area
around the work area is covered.
2. Cover area in front of the unit service panel with a terry
cloth shop towel to absorb lubricant spills and prevent
run-offs. Towel will also protect dropcloth from tears
caused by tools or components.
113
oil leakage include compressor