Dunkirk DCC-150 Installation, Operation & Maintenance Manual page 99

Optional Equipment
1.
Outdoor Air Sensor, if used.
A. Boiler automatically recognizes sensor when used.
B. See Chart 1 for sensor data. Sensor part number BD710487302V
C. Locate outdoor sensor to protect against wind and direct sunlight. Mounting instructions provided with sensor.
D. Maximum wire length is 100 ft (30m) for 22 ga. wire, or 150 ft (45m) for 18 ga. wire.
E. Connect wires to M2 OUTDOOR SENSOR terminals 4 & 5. Wires are interchangeable. See Accessories.
2.
Sensor for Indirect DHW Tank (Heating Only Boiler).
A. See Chart 2 for sensor data.
See Accessories section of this manual for wiring diagram.
CHART 1 - OUTDOOR AIR SENSOR DATA
T R
[°F] [Ohm]
-4.0 7,578
-2.2 7,193
-0.4 6,831
1.4 6,489
3.2 6,166
5.0 5,861
6.8 5,574
8.6 5,303
10.4 5,046
12.2 4,804
14.0 4,574
15.8 4,358
17.6 4,152
19.4 3,958
21.2 3,774
23.0 3,600
24.8 3,435
26.6 3,279
28.4 3,131
30.2 2,990
32.0 2,857
33.8 2,730
35.6 2,610
37.4 2,496
39.2 2,387
41.0 2,284
42.8 2,186
44.6 2,093
46.4 2,004
48.2 1,920
50.0 1,840
51.8 1,763
OPTIONAL EQUIPMENT
T R
[°F] [Ohm]
53.6 1,690
55.4 1,621
57.2 1,555
59.0 1,492
60.8 1,433
62.6 1,375
64.4 1,321
66.2 1,268
68.0 1,218
69.8 1,170
71.6 1,125
73.4 1,081
75.2 1,040
77.0 1,000
78.8 962
80.6 926
82.4 892
84.2 858
86.0 827
87.8 796
89.6 767
91.4 740
93.2 713
95.0 687
96.8 663
98.6 640
100.4 617
102.2 595
100.4 617
102.2 595
104.0 575
106.0 556
CHART 2 - INDIRECT TANK SENSOR DATA
T
[°F] [Ohm]
32.0 32,505
33.8 30,898
35.6 29,381
37.4 27,946
39.2 26,590
41.0 25,308
42.8 24,094
44.6 22,946
46.4 21,859
48.2 20,829
50.0 19,854
51.8 18,930
53.6 18,054
55.4 17,223
57.2 16,436
59.0 15,689
60.8 14,980
62.6 14,306
64.4 13,667
66.2 13,060
68.0 12,483
69.8 11,935
71.6 11,414
73.4 10,919
75.2 10,447
77.0 9,999
78.8 9,572
80.6 9,166
82.4 8,779
84.2 8,411
27
R T
[°F]
86.0
87.8
89.6
91.4
93.2
95.0
96.8
98.6
100.4
102.2
104.0
105.8
107.6
109.4
111.2
113.0
114.8
116.6
118.4
120.2
122.0
123.8
125.6
127.4
129.2
131.0
132.8
134.6
136.4
138.2
PN 240011430 REV G, [03/31/18]
R
[Ohm]
8,060
7,726
7,407
7,103
6,813
6,537
6,273
6,021
5,781
5,551
5,332
5,123
4,923
4,732
4,549
4,374
4,207
4,047
3,894
3,748
3,608
3,473
3,345
3,222
3,104
2,991
2,882
2,778
2,679
2,583