NTI VM110P - Vmax Fuse Location; Thermistor Resistance Vs. Temperature

Vmax I&O Manual │Troubleshooting
73
Only replace Vmax VM110 & VM110P controller fuse with identical part (LFT 3.15A,
250V “slow-blow”). Failure to follow this warning may result in component failure or
property damage.
Figure 18-1 Vmax Fuse Location (Display Assembly Removed for Illustration Purposes)
Figure 14-1 Tft Model
Table 18-1 Thermistor Resistance vs. Temperature
Temp °F (°C)
Resistance Ohms (Ω)
Temp °F (°C)
Resistance Ohms (Ω)
-22 (-30)
176,133
122 (50)
3,603
-4 (-20)
96,761
131 (55)
2,986
14 (-10)
55,218
140 (60)
2,488
32 (0)
32,650
149 (65)
2,083
41 (5)
25,390
158 (70)
1,752
50 (10)
19,900
167 (75)
1,481
59 (15)
15,710
176 (80)
1,258
68 (20)
12,490
185 (85)
1,072
77 (25)
10,000
194 (90)
918
86 (30)
8,057
203 (95)
789
95 (35)
6,531
212 (100)
680
104 (40)
5,327
230 (110)
506
113 (45)
4,369
-
-
* Not applicable for Return Sensor, P/N 84745
Operating Fuse, LFT
3.15A – “Slow-blow”
Spare Fuse
Boiler Controller