All installations and services must be performed by qualified service personnel.
5
tabs will need to be bent down, locate the locating
bracket with the tabs inside the back of the floor
opening. See Figure 6.
Place the connector duct in the floor opening. Determine
which position the plenum angles best fit to the duct
opening, cut opening and plenum angles as needed.
Attach the plenum angles to the connector duct with
screws or pop rivets.
Remove the connector duct; apply a water based duct
sealant to the plenum angles to assure a positive seal
between the plenum angle, distribution duct and
connector duct.
Place the connecter duct back in place, when properly
aligned secure to the floor with nails or flat head screws.
Secure the plenum angles to the distribution duct with
sheet metal screws or pop rivets.
Figure 5A
Figure 5B
Figure 6
Coil Cabinet: CE118S (GMA1 MODELS ONLY)
The CE118S coil cabinet (figure 2) is for applications
requiring air conditioning Refer to the installation
instructions provide with the Coil Cabinet.
GAS PIPING
c
WARNING:
Because of the potential of the
odorant to fade, a gas leak may not be detected by
smell. If this furnace is installed below grade,
contact your gas supplier for a gas detector.
c
WARNING:
With the gas piping pressurized, all
gas piping connections must be leak tested using a
strong soap and water solution. Any leaks must be
repaired immediately after turning off the gas
supply. A final test for gas leakage must be made
after purging the gas line.
c
CAUTION:
DO NOT wet electronic components
during the leak test. Wetting electronic components
may damage circuitry and cause a hazardous
situation. Dry moisture from all leads and terminals
if wetting occurs. Wait at least 24 hours for the
circuit to fully dry before energizing the system.
c
WARNING:
The furnace and its gas valve must be
disconnected from the gas supply during pressure
testing of the gas supply system at pressures in
excess of 1/2 PSIG (13.9 inches W.G.). The furnace
can be isolated from the gas supply by closing the
manual gas shutoff valve serving the appliance at
test pressures equal to, or less than, 1/2 PSIG or
(13.9 inches W.G.).
c
WARNING:
Copper and brass tubing and fittings
(except tin lined) shall not be used if the gas
contains more than a trace (0.3 grains per 100 cubic
ft.) of hydrogen sulfide gas. Check with your gas
supplier.
Sizing and installation of fuel lines must be in
accordance with federal, state, and local regulations.
A qualified installer or service person must install all gas
piping and perform all required testing.
Piping from the natural gas meter to the furnace shall be
in accordance with requirements of the local gas utility.
Summary of Contents for GMA1-60D48N
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