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EL297UHV Gas Furnace
The EL297UHV Category IV gas furnace is shipped ready 
-
nace is shipped with the bottom panel in place. The bot-
tom panel must be removed if the unit is to be installed 
The EL297UHV can be installed as either a Direct Vent 
or a Non-Direct Vent gas central furnace.
The furnace is equipped for installation in natural gas 
applications. A conversion kit (ordered separately) is re-
quired for use in propane/LP gas applications.
NOTE - In Direct Vent installations, combustion air is tak-
en from outdoors and ue gases are discharged outdoors. 
In Non-Direct Vent installations, combustion air is taken 
from  indoors  or  ventilated  attic  or  crawlspace  and  ue 
gases  are  discharged  outdoors.  See  for  applications  in-
volving roof termination.
DIRECT VENT INSTALLATION NON-DIRECT VENT 
INSTALLATION
EXHAUST
OUTLET
COMBUSTION
AIR INTAKE OUTSIDE
OF HOUSE
COMBUSTION
AIR INTAKE
INSIDE
OF HOUSE
EXHAUST OUTLET
Figure 1 
NON-DIRECT VENT 
INSTALLATION
NON-DIRECT VENT 
INSTALLATION
COMBUSTION 
AIR INTAKE INSIDE
VENTILATED
CRAWL SPACE
COMBUSTION 
AIR INTAKE INSIDE
VENTILATED
ATTIC SPACE
EXHAUST
 OUTLET
EXHAUST
 OUTLET
Figure 2 
Shipping and Packing List
Package 1 of 1 contains
1 - Assembled EL297UHV unit
1 - Bag assembly containing the following:
1 - Snap bushing
1 - Snap plug
1 - Wire tie
1 - Condensate trap
1 - Condensate trap cap
1 - Condensate trap clamp
1 - 2” diameter debris screen
1 - 3/4” Threaded street elbow
        
damage, immediately contact the last carrier.
The following items may also be ordered separately:
1 - Thermostat
1 - LP/Propane changeover kit
1 - Return air base kit
1 - Horizontal suspension kit
1 - High altitude pressure switch
Safety Information
 CAUTION
As with any mechanical equipment, contact with sharp 
sheet metal edges can result in personal injury. Take 
care while handling this equipment and wear gloves and 
protective clothing.
 DANGER
Danger of explosion.
There are circumstances in which odorant used with LP/
propane gas can lose its scent. In case of a leak, LP/
          
installed in all LP applications.
Use only the type of gas approved for use with this fur-
nace. Refer to unit nameplate.
   
Z21.47 and CSA 2.3 standards.
Building Codes
In the USA, installation of gas furnaces must conform with 
local building codes. In the absence of local codes, units 
must be installed according to the current National Fuel 
Gas Code (ANSI-Z223.1/NFPA 54). The National Fuel 
Gas Code is available from the following address:
American National Standards Institute, Inc.
11 West 42nd Street
New York, NY 10036
In Canada, installation must conform with current National 
Standard of Canada CSA-B149 Natural Gas and Propane 
Installation Codes, local plumbing or waste water codes 
and other applicable local codes.