Lennox 10GCS Series Mode d’emploi
@1998LennoxIndustries Inc.
Dallas, Texas,USA
Armstrong #38152A054
503,969M
IOGCS
IOGCS & 12GCS
SERIES
GAS /ELECTRIC
PACKAGED
UNITS
12GCS
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
_pu Technical
blications
Litho U.S.A.
_, WARNING
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other ap-
pliance.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier,
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
•Extinguish any open flames.
•Do not touch any electrical switch; do not
use any phone in your building.
•Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
•If you cannot reach your gas supplier, call
the fire department.
Page 1
CONDENSERFAN
CONDENSER COIL
BLOWER MOTOR
COMPRESSOR
PRESSURE SWITCH
GAS VALVE COMBUSTION
AIR BLOWER
BURNER BOX
CONTROLBOXSECTION
HEATEXCHANGER
ASSEMBLY
FIGURE 1
WARNING IMPORTANT
Keep the area clean and free of combustible material, gaso-
line, and other flammable vapors and liquids. The flow of com-
bustion and ventilation air must not be obstructed from enter-
ing the furnace or condenser coil. Do not permit overhanding
structures or shrubs to obstruct condenser fan discharge,
combustion air inlet or vent outlet.
Page 2
FORYOURSAFETYREADBEFORELIGHTING
BEFORELIGHTING,smellallaroundtheappliancearea
forgas.Besuretosmellnexttothefloorbecausesomegas
isheavierthanairandwillsettleonthefloor.
,WARNING
WARNING
_
4-
_
6-
Turn off all electrical power to unit.
This unit is equipped with an ignition device which au-
tomatically lights the pilot. Do not try to light the pilot by
hand.
Remove burner compartment access panel.
Honeywell VR8205 Gas Valve - Turn knob on gas
valve clockwise 4_ to OFF. Refer to figure 3.
Robertshaw7200 Gas Valve- Depress lever on gas
control and move to OFF and release. Do not force.
Refer to figure 4.
HONEYWELL VR8205 SERIES GAS VALVE
o
GAS VALVE SHOWN IN OFF POSITION
FIGURE 3
WARNING
IkWARNING
To place the unit into heating operation:
This unit does not have a pilot. It is equipped with an
ignition system which automatically lights the burner.
Do not try to light by hand.
Gas Valve Operation (Figures 3 and 4)
1 - STOP! Read the safety information at the beginning of
this section.
2 - Set thermostat to lowest setting. See figure 2.
THERMOSTATS
FIGURE 2
ROBERTSHAW 7200 GAS VALVE
GAS VALVE
SELECTOR ARM
IN OFF
POSITION
I
FIGURE 4
7 - Wait fifteen (15) minutes to clear out any gas. If you
then smell gas, STOP! Immediately call your gas
supplier from a neighbor's phone. Follow the gas
supplier's instructions. If you do not smell gas go to
next step.
8- Honeywell VR8205 Gas Valve - Turn knob on gas
valve counterclockwise _, to ON.
Robertshaw 7200 Gas Valve - Depress lever on gas
control and move to ON and release.
9 - Replace the access panel.
10- Turn on all electrical power to unit.
11- Set thermostat to desired setting.
12- If the appliance still will not operate, follow the instruc-
tions "To Turn Off Gas To Unit" and call your service
technician or gas supplier.
Page 3
ToTurnOffGasToUnit
1- Setthermostattolowestsetting.
2- Turnoffallelectrical power to unit ifservice is to be per-
formed.
3 - Remove burner compartment access panel.
4 - Honeywell VR8205 Gas Valves - Turn knob on gas valve
clockwise41_ to OFE Do not force.
Robertshaw 7200 Gas Valve - Push in gas control le-
ver, move to OFF, and release.
5 - Replace access panel.
Filters are not supplied. Inspect the filters once a month
and replace or clean them as necessary. DO NOT replace
a permanent-type filter with a disposable filter.
Unit is equipped with an internal filter clip which islocated in
indoor coil compartment attached to side of the unit drain
pan. TABLE 1
UNIT FILTER SIZES
GCS26 UNIT MODEL FILTER SIZE
-024, -030, -036 24 in. X 25 in.
-042 28 in. X 25 in.
-048, -060 30 in. X 30 in.
Normal Maintenance
Periodic inspection and maintenance normally consists of
changing or cleaning filters and (under some conditions)
cleaning the main burners.
WARNING
Motors
Indoor, outdoor fan and vent motors are permanently
lubricated and require no maintenance.
Outdoor Coil
Dirt and debris should not be allowed to accumulate on the
outdoor coil surface or other parts in the air circuit. Clean the
coild when necessary. Use a brush, vacuum cleaner attach-
ment, or other suitable means. If water is used to clean the
coil, be sure the power to unit is shut off prior to cleaning.
NOTE- Care should be used when cleaning the coil so that
the coil fins are not damaged.
Do not permit overhanging structures or shrubs to block the
hot condenser air discharge.
Heating System Inspection
The owner is responsible for ensuring that a qualified ser-
vice technician inspects the entire heating portion of the
unit annually. This inspection should include the burner, the
heat exchanger, and flue for any corrosion or soot accu-
mulation. If any corrosion or soot accumulation is found,
the burner, the heat exchangers, and the flue may have to
be cleaned. The technician should also check the burner
and controls for proper operation.
Vent Outlet
Visually inspect vent outlet periodically to prevent excessive
buildup of soot and dirt. tf necessary, clean the vent outlet to
maintain unobstructed discharge of the flue products.
Burner Flame
The burner flame is not adjustable; however, the flame
should be inspected at the beginning of each heating sea-
son and burners should be cleaned, if necessary. Burner
flame should be blue when burning natural gas.
Venting System Inspection
Annually (before heating season) inspect furnace venting
system, vent cap, heat exchanger and burners for corro-
sion, deterioration, or deposits of debris. Remove any ob-
structions.
Contact your Lennox dealer for a periodic unit inspection
by a qualified service technician.
Rollout Safety Switch
Your gas/electric unit is equipped with a roll-out safety
switch which shuts offthe gas supply to the furnace in case
the heat exchanger becomes blocked. If the heating section
of the unit fails to operate due to the functioning of this safety
switch, DO NOT attempt to place the unit into operation.
Contact a qualified service technician.
Call your service technician if unit is inoperative. Before
calling, always check the following to be sure service is re-
quired.
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 limiting air flow.
6 - Is gas turned on at meter?
7 - Is manual main shut-off valve open?
To keep your Lennox gas heating system in peak operating
condition year after year, contact your independent Lennox
dealer about a planned service program.
Page 4
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