Sl280Dfnv Gas Furnace; Shipping And Packing List; Safety - Lennox SL280DFNV Installation Instructions Manual

SL280DFNV Gas Furnace

The SL280DFNV gas furnace is equipped with a twostage,
variable speed integrated control. the control is compati-
ble with:
Communicating thermostats.
Non-communicating thermostats - ComfortSense or other
conventional thermostats.
Control systems - Harmony III™ Zone Control System
(non-communicating). Each SL280DFNV unit is shipped
ready for installation in the downflow position.

Shipping and Packing List

Package 1 of 1 contains
1 - Assembled SL280DFNV 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 - Propane/LP changeover kit
1 - Combustible flooring base
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier.
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,
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.
adjustment, alteration,
Certifications
SL280DFNV units are CSA International certified.
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). The National Fuel Gas Code is
available from the following address:
American National Standards Institute, Inc.
11 West 42nd Street
New York, NY 10036
Clearances
Adequate clearance must be made around the air open-
ings 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 venting ta-
bles (in this instruction) and applicable provisions of local
building codes.
This furnace is CSA International certified for installation
clearances to combustible material as listed on the unit
nameplate and in the tables in figure 14. Accessibility and
service clearances must take precedence over fire protec-
tion clearances.
Installed Locations
For installation in a residential garage, the furnace must
be installed so that the burner(s) and the ignition source
are located no less than 18 inches (457 mm) above the
floor. The furnace must be located or protected to avoid
physical damage by vehicles. When a furnace is installed
in a public garage, hangar, or other building that has a
hazardous atmosphere, the furnace must be installed ac-
cording to recommended good practice requirements and
current National Fuel Gas Code.
NOTE - Furnace must be adjusted to obtain a temperature
rise (high and low fire) within the range(s) specified on the
unit nameplate. Failure to do so may cause erratic limit
operation and may also result in premature heat exchang-
er failure. This SL280DFNV furnace must be installed so
that its electrical components are protected from water.
This SL280DFNV furnace must be installed so that its
electrical components are protected from water.
Installed in Combination with a Cooling Coil
When this furnace is used with cooling units, it shall be in-
stalled in parallel with, or on the upstream side of, cooling
units to avoid condensation in the heating compartment.
With a parallel flow arrangement, a damper (or other
means to control the flow of air) must adequately prevent
chilled air from entering the furnace (see figure 2). If the
damper is manually operated, it must be equipped to pre-
vent operation of either the heating or the cooling unit,
unless it is in the full HEAT or COOL setting.
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