Ml193Dfe Gas Furnace; Shipping And Packing List; Safety - Lennox MERIT Series Installation Instructions Manual

ML193DFE Gas Furnace

The ML193DFE Category IV gas furnace is shipped ready
for installation in the downflow position.
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.
The ML193DFE can be installed as a Direct Vent or
Non- Direct Vent gas central furnace
NOTE - In Direct Vent installations, combustion air is taken
from outdoors and flue gases are discharged outdoors. In
Non-Direct Vent installations, combustion air is taken from
indoors or ventilated attic or crawlspace and flue gases
are discharged outdoors. See FIGURE 1 and FIGURE 2
for applications involving roof termination.
DIRECT VENT INSTALLATION
EXHAUST OUTLET
COMBUSTION
AIR INTAKE OUTSIDE
OF HOUSE
FIGURE 1
NON-DIRECT VENT
INSTALLATION
EXHAUST
OUTLET
COMBUSTION
AIR INTAKE INSIDE
VENTILATED
ATTIC SPACE
FIGURE 2
.
NON-DIRECT VENT
INSTALLATION
EXHAUST
OUTLET
COMBUSTION
AIR INTAKE
INSIDE
OF HOUSE
NON-DIRECT VENT
INSTALLATION
EXHAUST
OUTLET
COMBUSTION
AIR INTAKE INSIDE
VENTILATED
CRAWL SPACE
Page 3

Shipping and Packing List

Package 1 of 1 contains
1 - Assembled ML193DFE 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 Air intake screen
1 - 3/4" Threaded street elbow
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier.
The following items may also be ordered separately:
1 - Thermostat
1 - Propane/LP changeover kit
Safety Information
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 floor and may be
difficult 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 installer (or
equivalent), service agency or the gas supplier.
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.
Use only the type of gas approved for use with this fur-
nace.
Refer to unit nameplate.
ML193DFE units are CSA International certified to ANSI
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: