Carrier DELUXE 58DXC - Manual (Page 5)

(5.) Repeat procedures (above) until each furnace cell has
been cleaned.
(6.) Using vacuum cleaner, remove residue from each cell.
' (7.) Using vacuum cleaner with soft brush attachment,
clean burner assembly.
Step
4
—Reassemble Furnace (After Cleaning Heat Ex­
changers)
1. Install choke plate (when used). Be sure choke plate bottom
conforms to top flange of condensing heat exchanger.
2. Reinstall coupling box(es);
a. Apply sealant releasing agent (Pam) to cell panel where
coupling box flange matches. (See Fig. 8.)
b. Apply a generous bead 3/16-in. dia) of G.E. RTV 122,162,
or Dow-Corning RTV 738 sealant (NO substitute is
permissible) to flange of coupling box. Your distributor
should have G.E. RTV 122, 162, or Dow-Corning RTV
738 sealants in stock.
c. Being careful not to smear sealant, position coupling box so
that slot in insulation is on left side and install coupling
box.
APPLY RELEASE AGENT TO AREA
INDICATED BY SHADING
COUPLING BOX
(INSIDE VIEW)
Fig. 8—Inside View of Coupling Box
A87318
NOTE: Downflow furnace only—position primary (lower) cou­
pling box so that tallest end is on right side.
3. Reinstall inducer assembly.
a. Upflow furnace only —Be sure small round gasket(s) is in
place between blower shelf and inducer housing.
b. Apply sealant releasing agent (Pam) to collector box. (See
Fig. 9.)
c. Apply 1/8-in. diameter bead of G.E. RTV 122, 162, or
Dow-Corning RTV 738 sealant to back of inducer housing.
Apply sealant around inlet air opening. (The sealant should
be about 1/4 in. from the edge of the inlet air opening.)
d. Install inducer assembly on collector box and support
bracket to coupling box.
e. Connect inducer motor plug-in connector to wiring har-
ness.Reconnect wires to pressure switch using furnace
wiring diagram. (See Fig. 17.)
f. Reconnect pressure tubes to pressure switch. (See Fig. 13 or
14.)
4. Connect small drain tube from top of trap to fitting on bottom
of inducer housing. (See Fig. 13 or 14.)
A86100
Fig. 9—Backside of Inducer Assembly Housing
BURNER FUME
5. Connect 7/8-in. drain tube to trap and collector box, and
tighten hose clamps. (See Fig. 13 or 14.)
6. Reinstall vent pipe and drain tube.
a. Upflow furnace only:
(1.) Reconnect vent pipe. Be sure clamps are tight.
(2.) Connect drain tube from collector box to inducer
outlet box.
b. Downflow furnace only:
(1.) Reconnect vent pipe. Be sure clamps are tight..
(2.) Reinstall vent pipe enclosure.
(3.) Connect drain tube from collector box to inducer
outlet elbow.
7. Upflow furnace only—reinstall main control box.
a. Reinstall main control box on blower shelf.