How it Works
Lennox
Loading...
4SG13B

Lennox 2SG13B, 4SG13B User's Information Manual

Download
Page 1
USER'S INFORMA'fION MANUAL
(2,4)SG13 Series
Gas eating/Electric Cooling Package Unit
Congratulations...
...your outdoor heating/cooling package unit is a valuable piece of equipment, designed and manufactured by the most modern methods. Proper care of your unit should result in many years of service and comfort.
for future reference.
GAMA Certified E_;=CE.OY
CERTbFIED
The Gas Appliance Manufacturers Association
(GAMA) symbol verifies that
Annual Fuel Utilization Efficiency (AFUE) ratings for our
gas package heating/cooling units have been derived from U.S. Government standard tests.
6AS-r|REB
_, WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could result in serious injury, death, or property damage.
= Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of this or any other appliance.
=What to do if you smell gas:
• Do not try to light any appliance.
• 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 the gas supplier, call the fire department.
LISTED
Manufactured By
A.A.C.
A Lennox International Inc. Company
421 Monroe Street
Bellevue, OH 44811
IIIlllUilllllUIlliII
# 48368H005 Save these instructionsfor future reference Page 1
= Installation and service must be per=
formed by a qualified installer, service agency or the gas supplier.
TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION ................ 2
OPERATING YOUR UNIT .................................... 3
MAINTENANCE OF YOUR UNIT ......................... 5
REPAIR PARTS .................................................... 7
WARRANTY ......................................................... 8
Page 2
IMPORTANT SAFETY INFORMATION
This unit is equipped with an ignition device which automatically lights the burners. See OPERATING YOUR UNIT on page 3 for information on lighting and shutting down the unit.
,
Should the gas supply fail to shut off or if overheat- ing occurs, shut off the gas valve to the unit before
shutting off the electrical supply.
Do not use the unit if any part has been under water. Aflood-damaged unit is extremely danger- ous. Attempts to use the unit can result in fire or explosion. A qualified service agency should be
contacted to inspect the unit and to replace all gas
controls, control system parts, electrical parts that
have been wet, or the unit if deemed necessary.
6. Examine the unit installation to determine that:
A. All flue gas carrying areas external to the unit,
such as the vent hood, are clear and free of obstructions.
For your safety, read the following before operating your
gas heating/electric cooling package unit:
1. The area around the unit must be kept clear and free of combustible materials, gasoline, and other flammable vapors and liquids.
,
This unit requires air for combustion and ventilation to ensure both proper and safe operation. Combus- tion air is brought in through the condenser section.
Do not block or obstruct the condenser coil or
condenser fan opening.
B. Return air duct connection(s) is physically
sound and sealed to the unit casing.
C. Physical support of the unit is sound without
sagging, cracks, gaps, etc.
D. There are no obvious signs of deterioration of
the unit.
E. Burner flames are in good adjustment (see
Burner Flame beginning on page 6).
It is important that you conduct a physical inspec-
tion of the unit at least twice a year. It is also
recommended that the unit should be inspected by
a qualified service agent at least once per year.
Page 2 #48368H005
Page 3
OPERATING YOUR UNIT
These units are equipped with an ignition device which automatically lights the burners. Do not try to light the
burners by hand.
,
Wait 5 minutes to clear out any gas, then smell for gas (including at the bottom of the unit near the ground). If you smell gas, stop and follow the direc- tions in WHAT TO DO IF YOU SMELL GAS on page
1. If you don't smell gas, continue to next step.
Before operating, smell around furnace area for gas. Be sure to smell near the unit base because some gas is heavier than
air and will settle to the lowest point. See WHAT TO DO IF YOU SMELL GAS on page 1if the odor of gas is present.
Use only your hand to slide the gas control switch; never use tools. If the switch will not move by hand, don't try to
repair it. Call a qualified service technician. Force or
attempted repair may result in a fire or explosion.
Lighting Instructions
1. STOP! Read the previous safety information.
2. Set the thermostat to the lowest setting.
3. Turn off all electric power to the unit.
4. Remove the burner compartment access panel.
5. This appliance is equipped with an automatic ignition device. Do not try to light the burners by hand.
6. Turn the gas control knob, or slide the gas control switch, to "OFF" (see Figure 1).
8. Turn the gas control knob, or slide the gas control switch, to "ON".
9. Replace the burner compartment access panel.
10. Turn on all electric power to the unit.
11. Set the thermostat to the desired setting.
12. If the unit will not operate, follow the instructions found below in To Turn Off Gas to Unit and call your
service technician or gas supplier.
Operating Sequence
When the thermostat calls for heat, the vent motor will purge the system for 30 seconds (nominal). When the prepurge time has expired, the gas valve will open for direct ignition. When burners are lit, the flame sensor will sense flame and keep the gas valve open. If the flame sensor does not sense that a flame has been established, it will shut off the gas valve. The ignition system is designed to go through three trials for ignition. If flame still has not been established after the third trial, the system will go into lockout. After 1 hour, the system will try three more times.
Gas Valves
Gas
Control
Knob
Gas Control Switch
If the system goes into lockout, it can be reset by turning your thermostat down or off for 10 seconds and then back to the desired point.
When the room thermostat is satisfied, the electrical circuit to the gas valve is opened and the burners are shut off.
Shutting Down the Unit
Toshut down the unit, set the thermostat to the "OFF" position.
To Turn Off Gas to Unit
1. Set the thermostat to the lowest setting.
2. Turn off all electric power to the unit if service is to be
performed.
3. Remove the burner compartment access panel.
4. Turn the gas control knob, or slide the gas control
switch, to "OFF" (see Figure 1). Do not force.
5. Replace the burner compartment access panel.
Figure 1
#48368H005 Page3
Page 4
Temperature Control
There are many types and styles of thermostats. Yours may look different from the one shown in Figure 2. However, almost all thermostats perform the same basic functions described in the following section.
Do not block supply registers or return grilles with furniture or rugs.
4. Keep surface of the outdoor coil free from dirt, lint, paper, or leaves.
If your unit fails to operate, check the following:
Thermostat
Selector Switch
Room
Temperature
FanSwitch
Cooling
Heating
Temperature
Setting
Figure 2
Thermostat Operation
There are two switches located on the thermostat (see Figure 2). One switch controls the heating and cooling functions. The other switch is for "FAN" operation, either
continuous or automatic. On the thermostat is the tem- perature range for the heating temperature and the
cooling temperature desired.
1. Be sure the main switch that supplies power to the unit is in the "ON" position.
2. Replace any burned-out fuses or reset circuit breakers.
3. Be sure the thermostat is properly set.
Ifthe unit still does not start, call a qualified service technician.
To put the system into operation, push the switch to either "HEAT" or "COOL" position. After choosing the type of operation, move the thermostat dial or lever to select the temperature you would like the system to maintain.
Fan Operation
You may wish to increase your comfort by setting your system for continuous air circulation of the indoor air. The fan switch on the thermostat permits you to do this.
With the switch in the "ON" position the fan will operate continuously. "AUTO" position gives fan operation only when the unit is in either heating or cooling.
Unit Operation
If your unit is operating but fails to provide complete comfort, check the following before calling for service:
1. Be sure the thermostat setting is correct.
2. Check to see if the filter is clean.
3. Be sure air can circulate freely throughout your home.
Page 4 #48368H005
Page 5
MAINTENANCE OF YOUR UNiT ignite. If the burner does not ignite, contact a qualified
service technician for assistance.
Should you observe unusual amounts of any of the following conditions, it is important that you call your authorized dealer at once to obtain a qualified service inspection:
Rust, flakes, or other deposits
Coatings Corrosion
There are routine maintenance steps you should take to keep your unit operating efficiently. This maintenance will assure longer life, lower operating costs, and fewer service calls. In addition to the maintenance procedures listed in this manual, there are also other service and maintenance procedures that require the skills of a service person who has specialized tools and training. Personal injury can result if you are not qualified to do this work. Please call your dealer when service is needed.
Your unit is designed to give many years of efficient, satisfactory service. However, the varied air pollutants commonly found in most areas can affect longevity and safety. Chemicals contained in everyday household items such as laundry detergents, cleaning sprays, hair sprays, deodorizers, and other products which produce airborne residuals may have an adverse effect upon the metals used to construct your appliance.
The cabinet of the unit can be cleaned with soap and
water. Grease spots can be removed with a household
cleaning agent.
It is important that you conduct periodic physical inspections of your appliance, paying special attention to the gas burners and the flue outlet. These components are located at the front of the unit.Aflashlight will be useful for these inspections. Make one inspection prior to the beginning of the heating season and another during the middle.
When inspecting the flue outlet, be sure to check for evidence of black soot or blockage by leaves or other debris. Clear any blockage that is found. If any soot is
found, a qualified service agency should be called should
be called immediately.
Even if no unusual rust or other conditions are observed, it is recommended that the unit be inspected and
serviced at least once per year by a qualified service technician. Regular inspections and planned mainte- nance will assure many years of economical performance from your unit.
Combustion and Ventilation Air
This unit requires air for combustion and ventilation to ensure both proper and safe operation. Combustion air is brought in through the condenser section. Do not block or obstruct the condenser coil or condenser fan opening.
Venting and Unit Support
Venting of this unit must comply with the unit Installation
Instructions. Be sure the installer has followed these
requirements. If not, you should request the installer to comply as soon as possible.
During your periodic inspections, check for obvious signs of deterioration of the unit. Check that the return and
supply ducts attached to the unit are sound and airtight. Check that the unit's physical support and concrete slab or roof curb is sound and not in need of repair. Make sure there are no gaps between the roof curb and the unit
where rain could leak in. Snow or debris should not be
allowed to accumulate in or around the unit.
As part of your inspection, you should start the unit. The
vent motor should start and purge the system for 30 seconds. After the prepurge time, the burners should
#48368H005 Page5
Make sure the vent terminal is clear and free of any obstruc-
tion. For proper venting terminations, see the Installation
Instructions furnished with the unit.
Check to see that the unit cabinet is sound and firmly sup- ported, without sagging. There should be no cracks or gaps.
It is important that the outside area where the vent termi-
nates is kept clear of any obstructions which might block or impede the venting of the unit. Screens in vent terminals should be cleaned periodically. Should venting become blocked at anytime, your unit is equipped with a special safety control to prevent operation of the unit until the
Page 6
conditionhasbeencorrected.Contactyourdealerifyou desiremoreinformationaboutthisimportantsafetyfeature. Shouldanyunusualconditionsbeobservedduringyour inspections,callanauthorizedservicedealerimmediately.
Return Air
All return air duct connections must be tight and sealed to unit cabinet. Supply and return air registers must be open when the unit is in operation. Obstructions must not be allowed to block airflow in or out of the registers.
Filters
Air filters are to be used with this heating/cooling unit. Filters are not factory supplied in the unit. However, a filter frame accessory is available from the manufacturer that
allows filters to be installed within the unit. [f the filter frame accessory is not used, a filter must be installed in
the duct work by the installer. Filters must always be installed ahead of the evaporator coil and must be kept clean or replaced. Dirty filters will reduce the airflow of the
unit. Filters should be sized in accordance with Table 1.
Minimum Required Surface Area
for Disposable Filters
Blower Assembly
Even with good filters properly in place, blower wheels and motors will become dust laden after long months of operation. The entire blower assembly should be in- spected annually. If the motor and wheel are heavily
coated with dust, they can be brushed and cleaned with a vacuum cleaner.
Burner Flame
While the unit is in operation, observe the burner flames.
Compare these observations to Figure 3 to determine if
proper flame adjustment is present. If your observations
indicate improper flame adjustment, call your authorized service dealer for service. Do not attempt to adjust flam!! Your service representative will perform this adjustment correctly.
Typical Flame Appearance
Heat
Exchanger
Burner _¢/
24,000 2.67
36,000 4.00
I
421000 I 4.67 48,000 5.33
60,000 I 6.67
Table 1
Outdoor Coil
Leaves and other large obstructions should be carefully removed from the outdoor coil surfaces without damaging
the fin surface of the coil.
Lubrication
Gas Burner
Manifold Flame
(Blue Only)
Figure 3
Rollout Switch
This unit is equipped with a manual reset high temperature sensor or rollout switch. In the unlikely event of a sustained
burner flame rollout, the rollout switch will shut off the flow of gas by closing the gas valve. The switch is located inside
the gas burner area. Flame rollout can be caused by
blockage of the power vent system, a blocked heat ex-
changer, or improper gas pressure or adjustment. If this event occurs, the unit will not operate properly. The gas supply to the unit should be shut off and no attempt should
be made to place it in operation. The system should be
inspected by a qualified service technician.
Lubrication of the bearings in the circulating air blower motor and the combustion blower motor is not recommended.
Page 6 #48368H005
Page 7
REPAIR PARTS
The following repair parts are available from your local distributor, When ordering parts, include the complete unit model number and serial number which are printed on the rating plate located on the unit,
Owner Record
Model # Serial #
Gas Control Group
Manifold Spark electrode
Burner Flame sensor
Heat Exchanger Group
Heat exchanger Flue cover
Blower Group
Blower assembly Blower housing
Blower motor
Inducer Group
Pressure switch
Electrical Group
Orifice
Ignition wire
Gas valve
Burner box
Blower wheel
Capacitor
Blower cutoff
Inducer blower and motor
Installation Date
Installed by: Dealer
Address
Telephone # License #
Limit switch Fan control board
Ignition control
Cooling Group
Compressor Fan motor
Fan blade
Transformer
Rollout switch
Coil Drain pan
Contactor
#48368H005 Page7
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use