Kenmore N8MSL0701412A1 Installation Instructions Manual page 42

spring cable, a variable speed reversible electric drill,
and vacuum cleaner, clean cells as follows:
a. Remove metal screw fitting from wire brush to allow
insertion into cable.
b. Insert the twisted wire end of brush into end of
spring cable, and crimp tight with crimping tool or
crimp by striking with batl-peen hammer.
TIGHTNESS IS VERY IMPORTANT.
NOTE: The materials needed in item 9 can usually be
purchased at local hardware stores.
(1) Attach variable-speed, reversible drill to the end of spring
cable (end opposite brush).
(2) Insert brush end of cable into the outlet opening of celt
and slowly rotate with drill. DO NOT force cable. Gradually
insert cable into upper pass of cell. (See Figure 47)
(3) Work cable in and out of cell 3 or 4 times to obtain
sufficient cleaning. DO NOT pull cable with great force.
Reverse drill and gradually work cable out.
Figure 45 -- Igniter Position-Side View
9/32" _
7.1 rnm
5/16"
7.9 mm
t
A05025
Figure 46 - Igniter Position-Top View
A05026
Figure 47 -- Cleaning Neat Exchanger Cell
A0t050
(4) Insert brush end of cable in burner inlet opening of cell,
and proceed to clean 2 lower passes of cell in same manner
as upper pass.
(5) Repeat foregoing procedures until each cell in furnace
has been cleaned.
(6) Using vacuum cleaner, remove residue from each cell.
(7) Using vacuum cleaner with soft brush attachment, clean
burner assembly.
(8) Clean flame sensor with fine steel wool.
(9) Install NOx baffles (if removed).
(10) Reinstall burner assembly. Center burners in cell
openings.
10. Remove old sealant from cell panel and collector box
flange.
11. Spray releasing agent on the heat exchanger cell panel
where collector box assembly contacts cell panel.
NOTE: A releasing agent such as a vegetable oil cooking
spray that does not contain corn oil, canola oil, halogenated
hydrocarbons or aromatic content, which may prevent an
inadequate seat from occuring, and RTV sealant such as
G.E. RTV 162, G.E. RTV 6702, or Dow-Corning RTV 738
sealant are required. DO NOT substitute any other type of
RTV sealant.
12. Apply new sealant to flange of collector box and attach
to cell panel using existing screws, making sure all
screws are secure.
13. Reconnect wires to the following components. (Use
connection diagram on wiring label, if wires were not
marked for reconnection locations.):
a. Draft safeguard switch.
b. Inducer motor.
c. Pressure switch(es).
d. Limit over-temperature switch.
e. Gas valve.
f. Hot surface igniter.
g. Flame-sensing electrode.
h. Flame rollout switches.
i. Install NOx baffles (if removed).
14. Reinstall internal vent pipe, if applicable.
15. Reinstall vent connector on furnace vent elbow. Se-
curely fasten vent connector to vent elbow with 2 field-
supplied, corrosion-resistant, sheet metal screws loc-
ated 180 ° apart.
16. Replace blower access door only, if it was removed.
17. Set thermostat above room temperature and check fur-
nace for proper operation.
18. Verify blower airflow and speed changes between
heating and cooling.
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Never test for gas leaks with an open flame. Use a
commercially available soap solution made
specifically for the detection of leaks to check all
connections.
19. Check for gas leaks.
20. Replace outer access door.
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