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EL180UHE Gas Furnace
The EL180UHE unit is shipped ready for installation in the 
upow or horizontal right position (for horizontal left posi-
tion the combustion air pressure switch must be moved) 
fueled by natural gas. A conversion kit (ordered separate-
ly) is required for use in LP/Propane gas applications. The 
furnace is shipped with the bottom panel in place. The bot-
tom panel must be removed if the unit is to be installed in 
a horizontal application. The panel may also be removed 
in upow applications.
Shipping and Packing List
Package 1 of 1 contains
1 - Assembled EL180UHE unit
1 - Bag assembly containing the following:
2 - Screws
1 - Snap bushing
1 - Snap plug
1 - Wire tie
1 -Vent warning label
1 - Owner’s manual and warranty card
The following items may be ordered separately:
1 - Thermostat
1 - Suspension kit (for horizontal installations)
1 - LP/Propane changeover kit
1 - Return air base
1 - High altitude kit
1 - Side lter kit
Check  equipment  for  shipping  damage.  If  you  nd  any 
damage, immediately contact the last carrier.
Shipping and Packing List
 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/propane gas will settle close to the oor and may be 
difcult to smell. An LP/propane leak detector should 
be installed in all LP applications.
 WARNING
Improper installation, adjustment, alteration, service 
or maintenance can cause property damage, personal 
injury or loss of life. Installation and service must  be 
performed by a licensed professional HVAC installer or 
equivalent, service agency, or the gas supplier.
Certications
EL180UHE  units  are  CSA  International  certied  to 
ANSI Z21.47.
In the USA, installation of gas furnaces must con-
form with local building codes. In the absence of lo-
cal codes, units must be installed according to the 
current National Fuel Gas Code (ANSI-Z223.1). The 
National Fuel Gas Code is available from the follow-
ing address:
American National Standards Institute, Inc.
11 West 42nd Street
New York, NY 10036
Clearances
Adequate clearance must be made around the air 
openings into the vestibule area. In order to ensure 
proper unit operation, combustion and ventilation air 
supply must be provided according to the current 
National Fuel Gas Code. Vent installations must be 
consistent with the National Fuel Gas Code venting 
tables (in this instruction) and applicable provisions 
of local building codes.
This furnace is CSA International certied for instal-
lation clearances to combustible material as listed on 
the unit nameplate and in the tables in gures 7 and 
11. Accessibility and service clearances must take 
precedence over re protection clearances.
NOTE - For installation on combustible  oors,  the 
furnace  shall not  be  installed  directly  on  carpeting, 
tile,  or  other  combustible  material  other  than  wood 
ooring.
Installed Locations
For installation in a residential garage, the furnace 
must be installed so that the burner(s) and the igni-
tion source are located no less than 18 inches (457 
mm)  above  the  oor. The furnace  must  be  located 
or protected to avoid physical damage by vehicles. 
When a furnace is installed in a public garage, han-
gar,  or  other  building  that  has  a  hazardous  atmo-
sphere, the furnace must be installed according to 
recommended good practice requirements and cur-
rent National Fuel Gas Code.
Temperature Rise
NOTE - Furnace must be adjusted to obtain a tem-
perature rise  within  the  range  specied on  the  unit 
nameplate. Failure to do so may cause erratic lim-
it  operation  and  may  result  in  premature  heat  ex-
changer failure.
This EL180UHE furnace must be installed so that its 
electrical components are protected from water.