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Table of Contents
I. Component Identification ............................................................................................................................................... 5
II. Safety............................................................................................................................................................................... 6
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................. 6
III. Product Application....................................................................................................................................................... 6
IV. Location Requirements & Considerations ................................................................................................................. 7
GENERAL ......................................................................................................................................................... 7
C
LEARANCES AND ACCESSIBILITY ......................................................................................................................... 8
F
URNACE SUSPENSION ....................................................................................................................................... 8
E
XISTING FURNACE REMOVAL .............................................................................................................................. 8
T
HERMOSTAT LOCATION ...................................................................................................................................... 9
V. Combustion & Ventilation Air Requirements................................................................................................................ 9
VI. Installation Positions .................................................................................................................................................. 11
VII. Horizontal Applications & Considerations ............................................................................................................... 11
GENERAL ....................................................................................................................................................... 11
D
RAIN TRAP AND LINES .................................................................................................................................... 11
L
EVELING ....................................................................................................................................................... 11
A
LTERNATE VENT/FLUE AND COMBUSTION AIR CONNECTIONS ................................................................................. 11
A
LTERNATE ELECTRICAL AND GAS LINE CONNECTIONS .......................................................................................... 11
D
RAIN PAN ..................................................................................................................................................... 11
F
REEZE PROTECTION........................................................................................................................................ 11
F
URNACE SUSPENSION ..................................................................................................................................... 12
VIII. Propane Gas /High Altitude Installations................................................................................................................ 12
IX. Vent/Flue Pipe & Combustion Air Pipe ...................................................................................................................... 12
GENERAL ....................................................................................................................................................... 12
D
UAL CERTIFICATION: NON-DIRECT/DIRECT VENT ................................................................................................ 12
M
ATERIALS AND JOINING METHODS .................................................................................................................... 12
P
ROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES ............................................................................... 12
T
ERMINATION LOCATIONS .................................................................................................................................. 13
C
ANADIAN VENTING REQUIREMENTS ................................................................................................................... 13
S
TANDARD FURNACE CONNECTIONS .................................................................................................................... 13
A
LTERNATE FURNACE CONNECTIONS ................................................................................................................... 14
N
ON-DIRECT VENT (SINGLE PIPE) PIPING ........................................................................................................... 16
D
IRECT VENT (DUAL PIPE) PIPING ..................................................................................................................... 17
V
ENT/INTAKE TERMINATIONS FOR INSTALLATION OF MULTIPLE DIRECT VENT FURNACES ............................................. 18
C
ONCENTRIC VENT TERMINATION........................................................................................................................ 18
X. Condensate Drain Lines & Drain Trap ........................................................................................................................ 19
GENERAL ....................................................................................................................................................... 19
U
PRIGHT INSTALLATIONS ................................................................................................................................... 19
H
ORIZONTAL INSTALLATIONS .............................................................................................................................. 20
XI. Electrical Connections................................................................................................................................................ 21
WIRING HARNESS ............................................................................................................................................ 21
115 V
OLT LINE CONNECTIONS........................................................................................................................... 21
24 V
OLT THERMOSTAT WIRING .......................................................................................................................... 22
S
INGLE-STAGE THERMOSTAT APPLICATION ........................................................................................................... 22
24 V
OLT DEHUMIDISTAT WIRING ........................................................................................................................ 22
F
OSSIL FUEL APPLICATIONS .............................................................................................................................. 23
115 V
OLT LINE CONNECTION OF ACCESSORIES (HUMIDIFIER AND ELECTRONIC AIR CLEANER).................................... 23
24 V
OLT HUMIDIFIER ........................................................................................................................................ 23
XII. Gas Supply and Piping .............................................................................................................................................. 23
GENERAL ....................................................................................................................................................... 23
G
AS PIPING CONNECTIONS................................................................................................................................24
P
ROPANE GAS TANKS AND PIPING ..................................................................................................................... 25
XIII. Circulating Air & Filters ............................................................................................................................................ 26
DUCTWORK - AIR FLOW.................................................................................................................................... 26
B
OTTOM RETURN AIR OPENING [UPFLOW MODELS] ............................................................................................. 26
F
ILTERS - READ THIS SECTION BEFORE INSTALLING THE RETURN AIR DUCTWORK .................................................... 27
U
PRIGHT INSTALLATIONS ................................................................................................................................... 27
H
ORIZONTAL INSTALLATIONS .............................................................................................................................. 28
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