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INSTALLATION INSTRUCTIONS
Installation Instructions
for DM92SS & DC92SS
Single-Stage Gas Furnace
(Type FSP CATEGORY IV Direct or
Non Direct Vent Air Furnace) (Type
FSP CATÉGORIE IV Direct ou four
á air soufflé non direct)
IOD-2010O
08/2021
Our continuing commitment to quality products may mean a change in specifications without notice.
©2014-2019,
2021
19001 Kermier Rd. Waller, Tx 77484
These furnaces comply with requirements
embodied in the American National
Standard / National Standard of Canada
ANSI Z21.47·CSA-2.3 Gas Fired Central
Furnaces.
Installer:
Affix all manuals
adjacent to the unit.
As a professional installer you have an obligation to know
the product better than the customer. This includes all safety
precautions and related items.
Prior to actual installation, thoroughly familiarize yourself with
this Instruction Manual. Pay special attention to all safety
warnings. Often during installation or repair it is possible to
place yourself in a position which is more hazardous than
when the unit is in operation.
Remember, it is your responsibility to install the product
safely and to know it well enough to be able to instruct a
customer in its safe use.
Safety is a matter of common sense...a matter of thinking
before acting. Most dealers have a list of specific good
safety practices...follow them.
The precautions listed in this Installation Manual are intended
as supplemental to existing practices. However, if there is a
direct conflict between existing practices and the content of
this manual, the precautions listed here take precedence.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
TABLE OF CONTENTS
Safety Considerations .................................................
Shipping Inspection .....................................................
Electrostatic Discharge (ESD) Precautions ........
To The Installer ..........................................................
Product Application ......................................................
Location Requirements & Considerations ................
Clearances and Accessibility ..................................
Existing Furnace Removal ........................................
Thermostat Location ..................................................9
Combustion & Ventilation Air Requirements
Installation Positions .................................................
Horizontal Applications & Considerations .............
Furnace Suspension .................................................
Front Cover Pressure Switch Tube Location .....
Drain Trap and Lines ................................................
Leveling ......................................................................
Alternate Electrical and Gas Line
Connections ...............................................................
Drain Pan ....................................................................
Freeze Protection ....................................................
Propane Gas/High Altitude Installations
Vent/Flue Pipe & Combustion Air Pipe ......................
Dual Certification: Non-Direct/Direct Vent .......12
Materials and Joining Methods .............................12
Proper Vent/Flue and Combustion Air Piping
Practices ....................................................................12
Termination Locations .............................................
Canadian Vent Pipe & Combustion Air Pipe
Requirements .............................................................
.............................14
Only personnel that have been trained to install, adjust,
service or repair(hereinafter, “service”) the equipment
specified in this manual should service the equipment.
The manufacturer will not be responsible for any injury
or property damage arising from improper service or
service procedures. If you service this unit, you assume
responsibility for any injury or property damage which
may result. In addition, in jurisdictions that require one or
more licenses to service the equipment specified in this
manual, only licensed personnel should service the
equipment. Improper installation, adjustment, servicing
or repair of the equipment specified in this manual,
or attempting to install, adjust, service or repair the
equipment specified in this manual without proper training
may result in product damage, property damage, personal
injury or death.
WARNING