23
Drain Exiting Left Side
1. Install a field supplied rubber coupling secured with
a 1 ¼” clamp to enable removing the trap for future
cleaning. Alternately, a PVC fitting may be glued on the
trap outlet.
2. Install drain per local and National codes.
Drain Exiting Right Side
1. Remove hose clamps and hoses from trap.
2. Remove trap.
3. (Draining the Vent Elbow) Insert the non-grommet
end hose #10 into the cabinet back drain hole. Insert
a coupling into the drip leg of the vent-drain elbow and
secure with a silver clamp. Secure hose #10 on vent-
drain elbow barb fitting with a silver clamp.
4. (Draining the Collector Box) Insert non-grommet end
of hose #9 into the cabinet front drain hole and secure
on collector box drain port with a silver clamp.
5. Mate the drain trap inlets to the hoses and secure with
silver clamps.
6. Line up the trap mounting holes with the pre-drilled
holes in the furnace and secure with 2 screws
removed in step 2.
7. Refer to Field Supplied Drain section for instructions on
field supplied / installed drain on outlet of furnace trap.
Figure 27
Counterflow Model Installed Horizontally
with Right Side Down
Minimum 5 ½” clearance is required for the drain trap
beneath the furnace.
NOTE:
For horizontal installations, some of the required
hoses are found in the factory-installed hose assemblies.
Remove the hose clamps to obtain the respective hoses
needed for installation, and install per the following directions.
1.
Remove the drain trap and factory installed drain tube
assemblies.
2. Remove two 1” plugs from right side of cabinet.
3. (Draining the Collector Box) From outside the cabinet,
insert the non-grommet end hose #7 into the back
drain hole and secure to collector box drain port using
a silver clamp.
4. (Draining the Vent Elbow) Insert the straight barbed
coupling into the vent-drain elbow drip leg and secure
with a red clamp.
5. From outside the cabinet, insert the non-grommet
end of hose #8 into the front cabinet drain hole and
secure on the vent – drain elbow barb fitting using a
red clamp.
6.
Place the drain hoses on the trap inlets and secure
with silver clamps. The outlet of the trap must face the
original bottom of the furnace.
7. Using the two sheet metal screws provided in the
cabinet, secure the trap to the furnace.
8. Refer to Field Supplied Drain section for instructions
on field supplied / installed drain on outlet of furnace
trap.
Hose #8
Hose #7
Hose #7
Hose #7
Figure 28
Counterflow Model Installed Horizontally with
Left Side Down
WARNING
To avoid the risk of injury, electrical shock or death, the
furnace must be electrically grounded un accordance with
local codes or, in their absence, with the latest edition of
the national code.
I
MPORTANT NOTE:
Wire routing must not interfere
with circulator blower operation, filter removal or routine
maintenance.
Minimum 5 ½” clearance is required for the drain trap
beneath the furnace.
*Also see Front Cover Pressure Switch Tube Location on
page 10.
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