08/03
*2P0803*
504,245M
*P504245M*
Page 1
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
10GCS
12GCS
E
2000 Lennox Industries Inc.
Dallas, Texas, USA
INSTALLATION
INSTRUCTIONS
10GCS & 12GCS
SERIES UNITS
GAS PACKAGED UNITS
(2−5 TONS)
Armstrong # 38152A058
504,245M
08/03
Supersedes 05/00
Table of Contents
Unit Dimensions
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Arrangement
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping & Packing List
4
. . . . . . . . . . . . . . . . . . . . . . . . .
General
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearances
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging & Setting Unit
5
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drain
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filters
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply & Return Connections
6
. . . . . . . . . . . . . . . . . . . .
Installing Vent Hood
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion Discharge
6
. . . . . . . . . . . . . . . . . . . . . . . . . .
Compressors
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LPG/Propane Units, Tanks, & Piping
8
. . . . . . . . . . . . . .
Electrical
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sequence of Operation
11
. . . . . . . . . . . . . . . . . . . . . . . . .
Condenser Fan Clearances
12
. . . . . . . . . . . . . . . . . . . . .
Start−up Check List
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Start−up
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Burner Adjustments
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manifold Gas Pressure Adjustment
14
. . . . . . . . . . . . . . .
High Altitude Information
14
. . . . . . . . . . . . . . . . . . . . . . .
Unit Controls
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Led Codes & Flash Rates
16
. . . . . . . . . . . . . . . . . . . . . . .
Repair Parts & Accessories
16
. . . . . . . . . . . . . . . . . . . . .
WHAT TO DO IF YOU SMELL GAS:
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.
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.
D
Do not try to light any appliance.
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.
D
Extinguish any open flames.
Litho U.S.A.
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