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Installation, Operation and
Maintenance Manual
Oil Fired Warm Air Furnaces
O4HD-091A-12-FB (Up-Flow Model)
O4HD-091A-14-FA-DV (Up-Flow Model)
O4HD-091A-V-FA (Up-Flow Model with ECM)
FOR YOUR SAFETY:
Do not store or use gasoline or other flammable liquids or
vapors in the vicinity of this, or any other appliance.
ALL INSTALLATIONS MUST MEET ALL
LOCAL, PROVINCIAL/STATE, AND
FEDERAL CODES WHICH MAY
DIFFER FROM THIS MANUAL
Nortek Global HVAC, LLC
Read this complete manual before
beginning installation. These instructions
must be kept with the furnace for future
reference.
151B
-0
8
10
(
Re
places 151B-0909)
Summary of Contents for O4HD-091A-12-FB
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