56
SHUTDOWN
56
APPENDIX
APPENDIX J - SENSOR RESISTANCE
SENSOR RESISTANCE TABLE
Temperature °F (°C)
Testing tolerance ±10%
Resistance [Ω]
32 (0) 27396
41 (5) 22140
50 (10) 17999
59 (15) 14716
68 (20) 12099
77 (25) 10000
86 (30) 8308
95 (35) 6936
104 (40) 5819
113 (45) 4904
122 (50) 4151
131 (55) 3529
140 (60) 3012
149 (65) 2582
158 (70) 2221
167 (75) 1918
176 (80) 1663
185 (85) 1446
194 (90) 1262
203 (95) 1105
212 (100) 970
221 (105) 855
230 (110) 755
239 (115) 669
248 (120) 594
257 (125) 529
Resistance table for:
− Heat exchanger supply temperature sensor
− Heat exchanger return sensor
− Heat exchanger ue sensor
− Boiler supply sensor
− System temperature sensor
− Outdoor temperature sensor
Vent terminals
Air intake
Vent terminals
Z
X
Y
Multiple air and vent horizontal termination:
X ≥ 12” (305 mm);
Y ≤ 25” (635 mm)
Z = 12” to 16” (305 mm to 406 mm)