Venting System; Burner Flame; Service Reminder - Lennox Merit Series User's Information Manual

VENTING SYSTEM

WARNING
!
Asphyxiation Hazard
The exhaust vent for this furnace must be
leak-free and must be securely connected to
the furnace flue collar at all times.
For your safety and to fulfill the terms of the
limited warranty, a licensed professional
service technician (or equivalent) must
annually inspect this furnace and its vent
system.
Annually (before heating season) inspect furnace venting
system, vent cap, heat exchanger, and burners for
corrosion, deterioration, or deposits of debris. Remove any
obstructions.
Inspect the furnace for obvious signs of deterioration.
Inspect the furnace venting system to make sure it is in
place, physically sound, and without holes, corrosion, or
blockage.
Vent pipe must be clear and free of obstructions and must
slope upward away from the furnace.
Inspect the furnace return air duct connection to ensure duct
is sealed to the furnace and terminates outside the space
containing the furnace.
Inspect the physical support of the furnace to guarantee that
it is sound without sagging, cracks or gaps around base and
it maintains seal between base and support.
Inspect the condensate drain and trap for leaks and cracks.
The drain and trap must also be cleaned and the trap must
be filled with water.
During a seasonal check the service technician will conduct
a combustion analysis. The technician will also inspect the
indoor blower, burner flames, electrical connections and the
venting system.
BLOWER
Check the blower wheel for debris and clean if necessary.
The blower motors are prelubricated for extended bearing
life. No further lubrication is needed.
6
WARNING
!
The blower access panel must be securely
in place when the blower and burners are
operating. Gas fumes, which could contain
carbon monoxide, can be drawn into living
space resulting in personal injury or death.

BURNER FLAME

CAUTION
!
To ensure proper operation, a licensed
professional service technician (or equivalent)
should check the burner flame and conduct a
combustion analysis annually.
ELECTRICAL
1. Check all wiring for loose connections.
2. Check for the correct voltage at the furnace (furnace
operating).
3. Check amp-draw on the blower motor.
Motor Nameplate__________Actual__________

SERVICE REMINDER

Call your Lennox service technician if the unit will not
operate.
Before calling, always check the following to be sure service
is required:
1. Check that electrical disconnect switches are ON.
2. Check room thermostat for proper setting.
3. Replace any blown fuses or reset circuit breakers.
4. Gas valve should be ON.
5. Air filter should not be plugged, which will limit air flow.
6. Is gas turned on at meter?
7. Is manual main shut-off valve open?
Record the model and serial number of the furnace. These
numbers are on the unit nameplate, which is located on the
blower deck below the combustion air inducer.
Serial Number __________________
Model Number __________________