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TABLE OF CONTENTS
GENERAL SAFETY INFORMATION
Installation Codes …............................................… 2, 3
Special Precautions ….........................................… 2, 3
Converting SI/Metric Unit Measurements …............… 3
SPECIFICATIONS
Basic Description ….................................................… 2
Dimensional Data …................................................… 4
Performance Data …................................................… 5
INSTALLATION
Locating Units …......................................................… 6
Safety Clearances …................................................… 6
Accessibility Clearances …......................................… 6
Ductwork …..............................................................… 7
Airfl ow, Combustion Inlet Air Ventilation …...............… 7
Suspension …..........................................................… 8
Conversion of Access Side …..................................… 9
Gas Pipe Sizing …...................................................… 9
Pipe Installation …............................................… 10, 11
ELECTRICAL CONNECTIONS …….................... 12-14
VENTING
General Venting Information…..........................… 15, 16
Standard Combustion…....................................… 17-19
Separated Combustion…..................................… 20-22
OPERATION
Explanation of Controls….......................................… 25
Start-Up and Shutdown…......................................… 25
Gas Input Rate…....................................................… 26
High Altitude Deration…....................................… 26, 27
MAINTENANCE …................................................… 28
IDENTIFICATION OF PARTS …............................… 29
TROUBLESHOOTING GUIDES …..................… 30-34
WARRANTY …......................................................… 35
UNIT NUMBER DESCRIPTION …........................… 35
EQUIPMENT START-UP SHEET …......................... 36
GENERAL SAFETY INFORMATION
The tubular duct furnace design is certifi ed by ETL for
use with natural and propane (LP) gases. ANSI and NFPA
Standards as well as Canadian installation codes referred
to in this manual are the ones that were applicable at the
time the design was certifi ed. In addition, the tubular duct
furnace may be installed on the downstream side of a
cooling unit, without need of a bypass duct.
The following terms are used throughout this manual, in
addition to ETL requirements, to bring attention to the
presence of potential hazards or to important information
concerning the product:
Indicates an imminently hazardous
situation which, if not avoided, will result in death,
serious injury, or substantial property damage.
Indicates an imminently hazardous
situation which, if not avoided, could result in
death, serious injury, or substantial property
damage.
Indicates an imminently hazardous
situation which, if not avoided, may result in minor
injury or property damage.
NOTICE: Used to notify of special instructions on
installation, operation, or maintenance which are
important to equipment but not related to personal
injury hazards.
DESCRIPTION
The Tubular Indoor Gas-Fired Duct Furnace is a factory
assembled, power vented, and low static pressure type
duct furnace with a low profi le cabinet. The duct furnace
can also be easily field conver ted to separated
combustion. The design is certifi ed by ETL as providing
a minimum of 82% thermal effi ciency, and approved for
use in California. Do not alter these units in any way. If
you have any questions after reading this manual,
contact the manufacturer.
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