Lennox XP16 Series Unit Information page 45

Outdoor Unit
1. Clean and inspect outdoor coil (may be flushed with a
water hose). Ensure power is off before cleaning.
2. Outdoor unit fan motor is pre−lubricated and sealed. No
further lubrication is needed.
3. Visually inspect all connecting lines, joints and coils for
evidence of oil leaks.
4. Check all wiring for loose connections.
5. Check for correct voltage at unit (unit operating).
6. Check amp draw on outdoor fan motor.
Motor Nameplate:_________ Actual:__________.
7. Inspect drain holes in coil compartment base and clean
if necessary.
NOTE - If insufficient heating or cooling occurs, the unit
should be gauged and refrigerant charge should be
checked.
Outdoor Coil
It may be necessary to flush the outdoor coil more frequently
if it is exposed to substances which are corrosive or which
block airflow across the coil (e.g., pet urine, cottonwood
seeds, fertilizers, fluids that may contain high levels of
corrosive chemicals such as salts)
XP16
D Outdoor Coil
water hose.
Outdoor Coil (Sea Coast)
D
can carry salt, which is corrosive to most metal. Units
that are located near the ocean require frequent
inspections and maintenance. These inspections will
determine the necessary need to wash the unit including
the outdoor coil. Consult your installing contractor for
proper intervals/procedures for your geographic area or
service contract.
1. Clean or change filters.
2. Lennox blower motors are prelubricated and permanently
sealed. No more lubrication is needed.
3. Adjust blower speed for cooling. Measure the pressure
drop over the coil to determine the correct blower CFM.
Refer to the unit information service manual for pressure
drop tables and procedure.
4. Belt Drive Blowers − Check belt for wear and proper
tension.
5. Check all wiring for loose connections.
6. Check for correct voltage at unit. (blower operating)
7. Check amp draw on blower motor.
Motor Nameplate:_________ Actual:__________.
Page 45
The outdoor coil may be flushed with a
Moist air in ocean locations
Indoor Unit