40
Installation, Operation & Maintenance - HEH/HEV Series
DXM2 Controls
Table 8: Nominal Resistance at Various Temperatures DXM2 Thermostat Details
Thermostat Compatibility
– Most heat pump and heat/
cool thermostats can be used with the DXM2, as well as
Comfort-Aire/Century communicating thermostats
(7602-457).
Anticipation Leakage Current
– Maximum leakage
current for “Y1” is 50 mA and for “W” is 20mA. Triacs
can be used if leakage current is less than above.
Thermostats with anticipators can be used if anticipation
current is less than that specified above.
Thermostat Signals -
• “Y1, Y2, W1, O” and “G” have a 1 second recognition
time when being activated or being removed.
• “R” and “C” are from the transformer.
• “AL1” and “AL2” originate from the Alarm Relay.
• “A+” and “B-” are for a communicating thermostat.
Temp (ºC)
Temp (ºF)
Resistance
(kOhm)
Temp (ºC) Temp (ºF)
Resistance
(kOhm)
-17.8
0.0
85.34
55
131.0
2.99
-17.5
0.5
84.00
56
132.8
2.88
-16.9
1.5
81.38
57
134.6
2.77
-12
10.4
61.70
58
136.4
2.67
-11
12.2
58.40
59
138.2
2.58
-10
14.0
55.30
60
140.0
2.49
-9
15.8
52.38
61
141.8
2.40
-8
17.6
49.64
62
143.6
2.32
-7
19.4
47.05
63
145.4
2.23
-6
21.2
44.61
64
147.2
2.16
-5
23.0
42.32
65
149.0
2.08
-4
24.8
40.15
66
150.8
2.01
-3
26.6
38.11
67
152.6
1.94
-2
28.4
36.18
68
154.4
1.88
-1
30.2
34.37
69
156.2
1.81
0
32.0
32.65
70
158.0
1.75
1
33.8
31.03
71
159.8
1.69
2
35.6
29.50
72
161.6
1.64
3
37.4
28.05
73
163.4
1.58
4
39.2
26.69
74
165.2
1.53
5
41.0
25.39
75
167.0
1.48
6
42.8
24.17
76
168.8
1.43
7
44.6
23.02
77
170.6
1.39
8
46.4
21.92
78
172.4
1.34
9
48.2
20.88
79
174.2
1.30
10
50.0
19.90
80
176.0
1.26
11
51.8
18.97
81
177.8
1.22
12
53.6
18.09
82
179.6
1.18
13
55.4
17.26
83
181.4
1.14
14
57.2
16.46
84
183.2
1.10
15
59.0
15.71
85
185.0
1.07
16
60.8
15.00
86
186.8
1.04
17
62.6
14.32
87
188.6
1.01
18
64.4
13.68
88
190.4
0.97
19
66.2
13.07
89
192.2
0.94
20
68.0
12.49
90
194.0
0.92
21
69.8
11.94
91
195.8
0.89
22
71.6
11.42
92
197.6
0.86
23
73.4
10.92
93
199.4
0.84
24
75.2
10.45
94
201.2
0.81
25
77.0
10.00
95
203.0
0.79
26
78.8
9.57
96
204.8
0.76
27
80.6
9.16
97
206.6
0.74
28
82.4
8.78
98
208.4
0.72
29
84.2
8.41
99
210.2
0.70
30
86.0
8.06
100
212.0
0.68
31
87.8
7.72
101
213.8
0.66
32
89.6
7.40
102
215.6
0.64
33
91.4
7.10
103
217.4
0.62
34
93.2
6.81
104
219.2
0.60
35
95.0
6.53
105
221.0
0.59
36
96.8
6.27
106
222.8
0.57
37
98.6
6.01
107
224.6
0.55
38
100.4
5.77
108
226.4
0.54
39
102.2
5.54
109
228.2
0.52
40
104.0
5.33
110
230.0
0.51
41
105.8
5.12
111
231.8
0.50
42
107.6
4.92
112
233.6
0.48
43
109.4
4.72
113
235.4
0.47
44
111.2
4.54
114
237.2
0.46
45
113.0
4.37
115
239.0
0.44
46
114.8
4.20
116
240.8
0.43
47
116.6
4.04
117
242.6
0.42
48
118.4
3.89
118
244.4
0.41
49
120.2
3.74
119
246.2
0.40
50
122.0
3.60
120
248.0
0.39
51
123.8
3.47
121
249.8
0.38
52
125.6
3.34
122
251.6
0.37
53
127.4
3.22
123
253.4
0.36
54
129.2
3.10
Summary of Contents for Comfort-Aire Century HE Series
Page 1: ...www marsdelivers com Installation Operation and Maintenance HEH HEV Series...
Page 32: ...32 Installation Operation Maintenance HEH HEV Series Typical Wiring Diagram Single Phase Unit...
Page 33: ...33 Installation Operation Maintenance HEH HEV Series Typical Wiring Diagram Three Phase Unit...
Page 34: ...34 Installation Operation Maintenance HEH HEV Series Typical Wiring Diagram 460 Volt Unit...