4
3. COIl INSTAllATION
WARNING:
Electric furnaces may be connected to
more than one supply circuit.
Upflow Furnace:
1. Disconnect all electrical power to
the furnace.
2. Install the coil in the coil cabinet and level
it as needed to allow proper condensate
drainage or make a plenum to enclose the
coil or drop the duct directly over it.
3. Seal the enclosure as required to minimize
air leakage.
4. Connect the refrigerant lines as outlined
in the Refrigerant Lines section.
Downflow FE/E* Electric Furnace:
1. Ensure that all electrical power to the
furnace is off.
2. Use the appropriate Coil Conversion Kit
which includes 2 air filters, close-off plates
(2 sets) and a coil hold down bracket.
3. Remove the filter located at the top of the
furnace cabinet.
4. Remove the refrigerant line knockouts lo
-
cated at the top and bottom of the furnace
cabinet.
5. Install the coil and level it as needed to
ensure proper condensate drainage.
6. Secure the coil hold down bracket with
screws.
7. Add air filters to the sides of the coil.
8. Cut the floor opening for the refrigerant lines
and drain line (See Figure 6).
9. Connect the refrigerant lines as outlined in
the Refrigerant Line Connection section.
Connect the drain line and ensure that there
is a water trap in the water line.
Downflow Furnace with Integral Coil
Cabinet or Optional Cabinet
1. Ensure that all electrical power to the furnace
is off.
2. On the optional cabinet, refer to its installa-
tion instructions for assembly details.
3. Remove the knockout in the left bottom cor
-
ner of the furnace and cut an appropriately
sized hole in the floor. See Figure 6.
Figure 1. Upflow Furnace/Air Handler
Figure 2. Downflow Furnace without Coil
Cabinet
4. Remove the interior coil panel. Install the
coil and level it as needed to ensure proper
condensate drainage.
5. Remove the knockout for the refriger
-
ant lines in the secondary covers and
replace in the furnace.
NOTE:
Modifications to the panel may be
required.