8
Horizontal Installation
For
horizontal installations,
insert the
#8 x 5/8 screw
from the
literature package.
Line contact to framing is permitted when installed in the hor-
izontal configuration. Line contact is defined as the portion of
the cabinet that is formed by the intersection of the top and
side. ACCESSIBILITY CLEARANCE, WHERE GREATER,
SHOULD TAKE PRECEDENCE OVER MINIMUM FIRE PRO-
TECTION CLEARANCE. A gas-fired furnace for installation
in a residential garage must be installed so that the ignition
source and burners are located not less than eighteen inches
(18”) above the floor and is protected or located to prevent
physical damage by vehicles. A gas furnace must not be in-
stalled directly on carpeting, tile, or other combustible materials
other than wood flooring.
Furnace Suspension
If suspending the furnace from rafters or joist, use 3/8” thread-
ed rod and 2”x2”x3/8” angle iron as shown below. The length
of rod will depend on the application and the clearances
necessary.
Suspended Furnace
Existing Furnace Removal
NOTE:
When an existing furnace is removed from a venting
system serving other appliances,
the venting system may be
too large to properly vent the remaining attached appliances.
C
ARBON
M
ONOXIDE
P
OISONING
H
AZARD
WARNING
Failure to follow the steps outlined below for each appliance
connected to the venting system being placed into operation
could result in carbon monoxide poisoning or death. The fol-
lowing steps shall be followed with each appliance connected
to the venting system placed in operation, while any other ap-
pliances connected to the venting system are not in operation:
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and
horizontal pitch, as required by the National Fuel
Gas Code, ANSI z223.1 or the Natural Gas and
Propane Installation Code, CSA B149.1-15 and these
instructions. Determine that there is no blockage or
restriction, leakage, corrosion and other deficiencies
which could cause an unsafe condition.
3. As far as practical, close all building doors and
windows and all doors between the space in which
the appliance(s) connected to the venting system are
located and other spaces of the building.
4. Close fireplace dampers.
5. Turn on clothes dryers and any appliance not connected
to the venting system. Turn on any exhaust fans, such
as range hoods and bathroom exhausts, so they shall
operate at maximum speed. Do not operate a summer
exhaust fan.
6. Follow the lighting instructions. Place the appliance
being inspected in operation. Adjust thermostat so
appliance shall operate continuously.
7. Test for spillage from draft hood appliances at the draft
hood relief opening after 5 minutes of main burner
operation. Use the flame of a match or candle.
8. If improper venting is observed during any of the
above tests, the venting system must be corrected in
accordance with the National Fuel Gas Code ANSI
Z223.1/NFPA 54 and/or National Gas and Propane
Installation Code CSA B149.1-15.
9. After it has been determined that each appliance
connected to the venting system properly vents when
tested as outlined above, return doors, windows,
exhaust fans, fireplace dampers and any other gas
burning appliance to their previous conditions of use.
