Troubleshooting
Table 19. Zone sensor (continued)
(a)
62
Temperature (oF)
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
Thumbwheel resistance checks are made at terminal 2 and 3 on the zone sensor. Temperature sensor resistance is measured at terminal 1
and 2 of the zone sensor.
Thermostat Thumbwheel
Resistance (Ohms)
(a)
753
733
714
694
675
656
636
617
597
578
558
539
519
500
481
461
442
422
403
383
364
344
325
306
286
267
247
228
208
Sensor Resistance (k Ohms)
16.1
15.7
15.4
15.0
14.6
14.3
14.0
13.6
13.3
13.0
12.6
12.3
12.1
11.8
11.5
11.2
11.0
10.7
10.4
10.2
10.0
9.7
9.5
9.3
9.0
8.8
8.6
8.4
8.2
BAS-SVX091A-EN