Variable Speed, 2-Stage
Upflow / Horizontal and
Downflow / Horizontal, Gas-Fired Furnaces,
“Fan Assisted Combustion System”
A341789P10
Installer’s Guide
Downflow / Horizontal*
Upflow / Horizontal*
For VENT SIZING INFORMATION see:
USA —
National Fuel Gas Code ........... ANSI Z223.1/NFPA 54 (latest version)
CANADA —
Natural Gas Installation Code ........CAN/CGA-B149.1 (latest version)
Propane Installation Code ............... CAN/CGA-B149.2 (latest version)
USA/CANADA ALTERNATE —
Category I Venting Guide ...........Pub. No. 18-CH23D1 (latest version)
*Horizontal Conversion for these furnaces may be left or right side rotation.
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit.
Please return to service information pack upon completion of work.
*__First letter may be “A” or “T”
*UD2B060A9V3VB
*UD2B080A9V3VB
*UD2C080A9V4VB
*UD2C080B9V4VB
*UD2B100A9V3VB
*UD2C100A9V5VB
*UD2C100B9V5VB
*UD2D120A9V5VB
*UD2D120B9V5VB
*UD2D140A9V5VB
*DD2B060A9V3VA
*DD2B080A9V3VA
*DD2C100A9V5VA
*DD2D120A9V5VA
*DD2-9V
*UD2-9V
18-CD31D1-5
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