Tx Fuse Location; Thermistor Resistance Vs. Temperature - NTI Trinity TX51 Installation And Operation Instructions Manual

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Troubleshooting
Only replace Tx controller fuse with identical part (LFT 3.15A, 250V "slow-blow").
Failure to follow this warning may result in component failure or property damage.
Operating Fuse, LFT
3.15A – "Slow-blow"
Table 18-1 Thermistor Resistance vs. Temperature
Resistance Ohms (Ω)
Temp °F (°C)
-22 (-30)
-4 (-20)
14 (-10)
32 (0)
41 (5)
50 (10)
59 (15)
68 (20)
77 (25)
86 (30)
95 (35)
104 (40)
113 (45)
76
Figure 18-1 Tx Fuse Location
Figure 14-1 Tft Model
Temp °F (°C)
176,133 122 (50)
96,761 131 (55)
55,218 140 (60)
32,650 149 (65)
25,390 158 (70)
19,900 167 (75)
15,710 176 (80)
12,490 185 (85)
10,000 194 (90)
8,057 203 (95)
6,531 212 (100)
5,327 230 (110)
4,369 -
Spare Fuse
Boiler Controller
Resistance Ohms (Ω)
3,603
2,986
2,488
2,083
1,752
1,481
1,258
1,072
918
789
680
506
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Tx I&O Manual