Lennox 10GCS Series Installation Instructions Manual
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E2000 Lennox Industries Inc.
Dallas, Texas, USA
10GCS
12GCS
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
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.
08/03
*2P0803*
Downloaded from
ManualsNet.com
If the information in this manual is not
followed exactly, a fire or explosion
may result causing property damage,
personal injury or loss of life.
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INSTALLATION
INSTRUCTIONS
10GCS & 12GCS
SERIES UNITS
GAS PACKAGED UNITS (2−5 TONS)
Armstrong # 38152A058
504,245M
08/03
Supersedes 05/00
Table of Contents
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WARNING
WHAT TO DO IF YOU SMELL GAS:
D Do not try to light any appliance.
D Extinguish any open flames.
D Do not touch any electrical switch; do not
use any phone in your building.
D Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
D If you cannot reach your gas supplier, call
the fire department.
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504,245M
*P504245M*
Litho U.S.A.
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Summary of Contents for Lennox 10GCS Series
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Page 1: Table Of Contents
INSTALLATION INSTRUCTIONS E2000 Lennox Industries Inc. Dallas, Texas, USA 10GCS & 12GCS SERIES UNITS GAS PACKAGED UNITS (2−5 TONS) Armstrong # 38152A058 504,245M 08/03 Litho U.S.A. Supersedes 05/00 Table of Contents Unit Dimensions ....... . -
Page 2: Unit Dimensions
10GCS Unit Dimensions − inches (mm) Corner Weights lbs. (kg) Center of Gravity inches (mm) Model Model Model Model Number Number lbs. lbs. lbs. lbs. inch inch 10GCS−024 10GCS−024 21 1/2 10GCS−030 10GCS−030 21 1/2 10GCS−036 10GCS−036 21 1/2 10GCS−042 10GCS−042 21 1/2 10GCS−048... - Page 3 12GCS Unit Dimensions − inches (mm) Corner Weights lbs. (kg) Center of Gravity inches (mm) Model Model Model Model Number Number inch inch lbs. lbs. lbs. lbs. 12GCS 024 25 1/2 12GCS 024 12GCS 030 25 1/2 12GCS 030 12GCS 036 25 1/2 12GCS 036 12GCS 042...
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Page 4: Parts Arrangement
Parts Arrangement condenser fan condenser coil BLOWER blower motor compressor heat exchanger assembly manifold burner box pressure switch combustion air inducer gas valve control box section Figure 1 tested. The units require only electric power, gas piping, Shipping & Packing List condensate drain and duct connections plus assembly of 1 −... -
Page 5: Clearances
É É É supervisor. É É É É É É É É É É É É É Lennox Industries Inc. É É É É É É É É P.O. Box 799900 24 in. É É É É É É É É... -
Page 6: Condensate Drain
Condensate Drain Supply & Return Connections Duct system should be designed and sized according to The packaged unit is equipped with a 3/4 inch fpt coupling the methods in Manual Q of the Air Conditioning for condensate line connection. Plumbing must conform to Contractors of America (ACCA). -
Page 7: Compressors
The vent outlet must be installed in a location that prevents Table 3 Gas Pipe Capacit −FT / HR building degradation and must be consistent with the National Fuel Gas Code, Z223.1 or CAN/CGA−B149.1 & .2. Nominal Iron Pipe Size (inches) In addition to the above requirements, consideration must Length in Feet Length in Feet... -
Page 8: Lpg/Propane Units, Tanks, & Piping
Isolate Gas Valve To Pressure Test CAUTION Manual Main Shut−off Valve Will Not Hold Test Pressures in Excess of 0.5 PSIG (14 in. w.c.) Some soaps used for leak detection are corrosive to certain metals. Carefully rinse piping thoroughly af ter leak test has been completed. - Page 9 Figure 7 Page 9 Downloaded from ManualsNet.com search engine...
- Page 10 Figure 8 Page 10 Downloaded from ManualsNet.com search engine...
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Page 11: Sequence Of Operation
Use wiring with a temperature limitation of 75_C min.; run Sequence of Operation the 208 or 230 volt, 60 hertz electric power supply through a Cooling System fused disconnect switch to control box of unit and connect The cooling section is a complete factory package utilizing as shown in the wiring diagram located on the inside of the an air−cooled condenser. -
Page 12: Condenser Fan Clearances
Table 5 Normal Operating Pressures 80°F db / 87°F wb RETURN AIR Air Temperature Entering Outdoor Coil (°F) Model Pressure 65° 70° 75° 80° 82° 85° 90° 95° 100° 105° 110° 115° 10GCS−024 10GCS−030 10GCS−036 Suction Suction 10GCS−042 10GCS−048 10GCS−060 10GCS−024 10GCS−030 10GCS−036... -
Page 13: Start−Up Check List
3 − Turn gas valve knob or push gas valve lever to ON Start−Up Check List position. Refer to figures 11 and 12. Complete the following checks before starting the unit. 4 − Turn on electrical power to unit. 1 − Check the type of gas being supplied. Be sure it is the 5 −... -
Page 14: Burner Adjustments
4 − Adjust temperature rise to the range specified on the For LPG / Propane Gas Applications L.P.G./Propane units require a regulator, and a regulator on rating plate. the L.P.G./Propane tank is also required. Burner Adjustments The minimum permissible gas supply pressure is 11 inches W.C. -
Page 15: Maintenance
blower/ignition control and closes the main gas valve. To 7 − If soot buildup is excessive, remove the vent motor and clean the wheel and housing. Run the wire brush reset, push the button on top of the switch. down the flue extension at the outlet of the vent hous Auxiliary Limit ing. -
Page 16: Led Codes & Flash Rates
Auxiliary Limit Fan Motor Drier Pressure Switch Fan Motor Capacitor Cap. Tube or Expansion Valve Contactor Capacitor Condenser Coil Accessories LENNOX Cat. Description Kit Number Number Low Ambient Control ALOAM111−1 42K88 High Pressure Cut−out Kit AHPSW436−1 42K89 Timed Off Control ATIMR446−1...
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