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XC25 SERIES
Charging
The XC25 unit is factory-charged with enough HFC-410A
refrigerant to accommodate a 15-foot length of refrigerant
piping. Charge should be checked and adjusted using the
tables provided on the charging procedure sticker located
on the unit access panel. Detailed charging information is
provided in the XC25 Installation and Service Procedures
Corp. 1253-L11, which is available on DaveNet.
IMPORTANT !
Room thermostat must be turned down at least 5°F
from set point so charging occurs with system
operating at 100% capacity. Seven-segment display
on outdoor control will show outdoor unit running
capacity.
Alarms
Alarm information is provided on on the outdoor unit ac
cess panel and in the iComfort Wi-Fi
®
Installer's System
Setup Guide. Detail alarm information is also available in
the XC25 Installation and Service Procedures Corp.
1253-L11, which is available on DaveNet.
Outdoor Control Seven-Segment Display
and Push Button
Information concerning the outdoor control seven-seg
ment display and push button operations are available on
the unit access panel and in the XC25 Installation and Ser
vice Procedures Corp. 1253-L11.
System Component Configuration
(Outdoor Unit)
All configuration of the outdoor unit is completed using the
iComfort Wi-Fi
®
thermostat. Please refer to the iComfort
Wi-Fi
®
Installer's System Setup Guide for complete details
on how to integrate this unit into a iComfort™-enabled sys
tem.
Homeowner Information
CAUTION
Before attempting to perform any service or mainte
nance, turn the electrical power to unit OFF at discon
nect switch.
Cleaning of the outdoor unit's coil should be performed by
a licensed professional service technician (or equivalent).
Contact your dealer and set up a schedule (preferably
twice a year, but at least once a year) to inspect and ser
vice your outdoor unit. The following maintenance may be
performed by the homeowner.
IMPORTANT !
Sprinklers and soaker hoses should not be installed
where they could cause prolonged exposure to the
outdoor unit by treated water. Prolonged exposure
of the unit to treated water (i.e., sprinkler systems,
soakers, waste water, etc.) will corrode the surface
of steel and aluminum parts, diminish performance
and affect longevity of the unit.
Outdoor Coil
The outdoor unit must be properly maintained to ensure its
proper operation.
S Please contact your dealer to schedule proper inspec
tion and maintenance for your equipment.
S Make sure no obstructions restrict airflow to the outdoor
unit.
S Grass clippings, leaves, or shrubs crowding the unit can
cause the unit to work harder and use more energy.
S Keep shrubbery trimmed away from the unit and periodi
cally check for debris which collects around the unit.
S Keep snow level below the louvered panels to ensure
proper performance.
Routine Maintenance
In order to ensure peak performance, your system must be
properly maintained. Clogged filters and blocked airflow
prevent your unit from operating at its most efficient level.
NOTE — The filter and all access panels must be in place
any time the unit is in operation. If you are unsure about the
filter required for your system, call your Lennox dealer for
assistance.
1. Ask your Lennox dealer to show you where your indoor
unit's filter is located. It will be either at the indoor unit
(installed internal or external to the cabinet) or behind
a return air grille in the wall or ceiling. Check the filter
monthly and clean or replace it as needed.
2. Disposable filters should be replaced with a filter of the
same type and size.
3. The indoor evaporator coil is equipped with a drain pan
to collect condensate formed as your system removes
humidity from the inside air. Have your dealer show
you the location of the drain line and how to check for
obstructions. (This would also apply to an auxiliary
drain, if installed.)
Thermostat Operation
See the iComfort Wi-Fi
®
thermostat homeowner manual
for instructions on how to operate your thermostat.
Preservice Check
If your system fails to operate, check the following before
calling for service:
S Verify room thermostat settings are correct.
S Verify that all electrical disconnect switches are ON.
S Check for any blown fuses or tripped circuit breakers.
S Verify unit access panels are in place.
S Verify air filter is clean.
S If service is needed, locate and write down the unit
model number and have it handy before calling.
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