22
6.
For models *MSS920403AN and *MSS960403AN;
locate the hose #2 (factory installed) and cut 1.5
length from the end of the hose. Insert hose #2 from
outside the cabinet through the cabinet’s drain hole
nearest to the top. Secure it to the barbed fitting in
the elbow with a red clamp.
7.
(Draining the Collector Box) Install the non-grommet
end of hose #11 from outside the cabinet in the
bottom drain hole. Install on collector box and
secure with a silver clamp.
8.
Use two silver clamps and secure the hoses to drain
trap. The trap outlet faces the front of the furnace.
Secure the trap to the cabinet using two screws
removed in step 2 by inserting the two screws
through the large set of holes in the top mounting
tabs of the trap into the two pre-drilled holes in the
side of the cabinet.
9.
Refer to Field Supplied Drain section for instructions
on field supplied / installed drain on outlet of furnace
trap.
Upflow Model Installed Horizontally with Left
Side Down
Minimum 5 1/2” clearance is required for the drain trap
beneath the furnace.
*Also see Front Cover Pressure Switch Tube Location on
page 10.
1. Remove the clamps from the two drain tubes on the
trap.
2. Remove the two screws holding the drain trap to the
blower deck.
3. Remove the trap and hoses from the blower deck.
Hose #6
Hose #5
Hose #11
Figure 26
4. Remove the two plugs from the left side of the
cabinet and install them in the blower deck.
5.
(Draining the Vent Elbow) Locate hose #6.
Measuring from the non-grommet end; cut off and
discard 1 ½” for a “D” width cabinet, 5” for a “C”
width cabinet, 8 ½” for a “B” width cabinet.
6. Remove the rubber plug from vent – drain elbow
side port. Place hose #6 on the vent – drain elbow
side port and secure with a silver clamp .
7.
Unused vent-drain elbow drip leg port must be
sealed to prevent flue gases from escaping.
Insert the rubber plug removed in step 6 into the
unused elbow drain port. Inserting a blunt tool
such as a 3/16’’ Allen wrench into the center of
the rubber plug will stretch the plug and allow
complete insertion.
8.
Locate hose #5 and cut 3” from the non-grommet
end. Discard the section without the grommet.
9.
Insert the cut end of tube #5 through the lower
cabinet drain hole.
10.
Connect hose #6 & hose #5 using 100º elbow and
secure with two red clamps
11.
(Draining the Collector Box) Remove cap from left
side collector box drain port (bottom in horizontal left
position) and install it on right side (top) collector box
drain port.
12. Install the non-grommet end of hose #11 from
outside the cabinet in the upper drain hole. Install on
collector box and secure with a silver clamp.
13.
Use two silver clamps and secure the hoses to drain
trap. The trap outlet faces the front of the furnace.
Secure the trap to the cabinet using two screws
removed in step 2 by inserting the two screws
through the large set of holes in the top mounting
tabs of the trap into the two pre-drilled holes in the
side of the cabinet. [Removed: Place cap on vent...]
14. Refer to Field Supplied Drain section for instructions
on field supplied / installed drain on outlet of furnace
trap.
Upflow Model Installed Horizontally With Left
Side Down - Alternate
*Also see Front Cover Pressure Switch Tube Location
on Page 10.
1.
(Draining the RF000142 Coupling) Locate hose #2
(factory installed). Cut off and discard the 45° radius
end.
2.
Install 90°radius end of hose #2 on RF000142 drain
outlet and secure with a red clamp.
3. Insert coupling in hose #2 and secure with a red
clamp.
4.
Locate hose #5 and cut 3” from the non-grommet
end. Discard the section without the grommet.
5. Insert the cut end of tube #5 through the lower
cabinet drain hole.
6. Insert 100 degree elbow in the cut end of hose #5.
7.
Locate hose #6. Using red clamps, connect between
the coupling and 100 degree elbow, cutting off
excess tubing.
8.
(Draining the Collector Box) Remove cap from left
side collector box drain port (bottom in horizontal left
position) and install it on right side (top) collector box
drain port and secure with a red clamp.
9.
Install the non-grommet end of hose #11 from
outside the cabinet in the upper drain hole. Install on
collector box and secure with a silver clamp.
