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Checklist - Kenmore N8MSL0701412A1 Installation Instructions Manual

80% single stage psc motor category i, gas furnace
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a. Verify vent pipe is cool to the touch.
b. Disconnect power to furnace and remove vent con-
nector from furnace vent elbow.
c. Restore power to furnace and set room thermostat
above room temperature.
d. After normal start-up, allow furnace to operate for 2
minutes, then block vent elbow in furnace 80 per-
cent of vent area with a piece of flat sheet metal.
e. Furnace should cycle off within 2 minutes. If gas
does not shut off within 2 minutes, determine reas-
on draft safeguard switch did not function properly
and correct condition.
f. Remove blockage from furnace vent elbow.
g. Switch will auto-reset
when it cools.
h. Re-install vent connector.
NOTE:
Should switch remain open longer than 3 minutes,
furnace control board will lockout the furnace for 3 hrs. To
reset furnace
control
board, turn thermostat
below room
temperature
or from HEAT to OFF and turn 115-v
power
OFF, then back ON.
3. Check Pressure Switch This control proves operation
of the draft inducer blower.
a. Turn off 115-v power to furnace.
b. Disconnect inducer motor lead wires from wire har-
ness.
c. Turn on 115-v power to furnace.
d. Set thermostat to "call for heat" and wait 1 minute.
When pressure switch is functioning properly, hot
surface igniter should NOT glow and control dia-
gnostic light flashes a status code 3. If hot surface
igniter glows when inducer motor is disconnected,
shut down furnace immediately.
e. Determine reason pressure switch did not function
properly and correct condition.
f. Turn off 115-v power to furnace.
g. Reconnect inducer motor wires, replace outer door,
and turn on 115-v power.
h. Blower will run for 90 sec and flash status code 1+2
before beginning the call for heat again.
i. Furnace should ignite normally.
Step 5--Checklist
1. Put away tools and instruments.
Clean up debris.
2. Verify that heat off-delay time is selected as desired.
3. Verify that blower and burner access doors are prop-
erly installed.
4. Cycle test furnace with room thermostat.
5. Check operation of accessories
per manufacturer's
in-
structions.
6. Review User's Guide with owner.
7. Attach literature packet to furnace.
SECONDS
FOR 1
REVOLUTION
Table 13--Gas
Rate (cu ft./hr)
SIZE OF TEST DIAL
Cu Ft
2 Cu Ft
5 Cu Ft
SECONDS
FOR 1
REVOLUTION
1 Cu Ft
10
360
720
1800
50
72
11
327
655
1636
51
71
12
300
600
1500
52
69
13
277
555
1385
53
68
14
257
514
1286
54
67
15
240
480
1200
55
65
16
225
450
1125
56
64
17
212
424
1059
57
63
18
200
400
1000
58
62
19
189
379
947
59
61
20
180
360
900
60
60
21
171
343
857
62
58
22
164
327
818
64
56
23
157
313
783
66
54
24
150
300
750
68
53
25
144
288
720
70
51
26
138
277
692
72
50
27
133
267
667
74
48
28
129
257
643
76
47
29
124
248
621
78
46
30
120
240
600
80
45
31
116
232
581
82
44
32
113
225
563
84
43
33
109
218
545
86
42
34
106
212
529
88
41
35
103
206
514
90
40
36
100
200
500
92
39
37
97
195
486
94
38
38
95
189
474
96
38
39
92
185
462
98
37
40
90
180
450
100
36
41
88
176
439
102
35
42
86
172
429
104
35
43
84
167
419
106
34
44
82
164
409
108
33
45
80
160
400
110
33
46
78
157
391
112
32
47
76
153
383
116
31
48
75
150
375
120
30
49
73
147
367
SIZE OF TEST DIAL
2 Cu Ft
5 Cu Ft
144
360
14t
355
138
346
136
340
133
333
131
327
129
321
126
316
124
310
122
305
120
300
116
290
112
281
109
273
106
265
103
257
100
250
97
243
95
237
92
231
90
225
88
220
86
214
84
209
82
205
80
200
78
196
76
192
75
188
74
184
72
180
71
178
69
173
68
170
67
167
65
164
64
161
62
155
60
150
34
441 01 1402 02

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