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Table 6 – Temperature / Ohm Relationship
TEMP. (°F/°C) RESISTANCE (OHMS)
--- 9 / --- 23 78330
--- 8 / --- 22 74610
--- 6 / --- 21 71100
--- 4 / --- 20 67770
--- 2 / --- 19 64570
--- .4 / --- 18 61540
1 / --- 17 58680
3 / --- 16 55970
5 / --- 15 53410
7 / --- 14 50980
9 / --- 13 48680
10 / ---12 46500
12 / ---11 44430
14 / ---10 42470
16 / --- 9 40570
18 / --- 8 38770
19 / --- 7 37060
21 / --- 6 35440
23 / --- 5 33900
25 / --- 4 32440
27 / --- 3 31050
28 / --- 2 29730
30 / --- 1 28480
32 / 0 27280
34 / 1 26130
36 / 2 25030
37 / 3 23990
39 / 4 23000
41 / 5 22050
43 / 6 21150
45 / 7 20300
46 / 8 19480
48 / 9 18700
50 / 10 17960
52 / 11 17240
54 / 12 16560
55 / 13 15900
57 / 14 15280
59 / 15 14690
61 / 16 14120
63 / 17 13580
64 / 18 13060
66 / 19 12560
68 / 20 12090
70 / 21 11630
72 / 22 11200
73 / 23 10780
75 / 24 10380
77 / 25 10000
79 / 26 9632
81 / 27 9281
82 / 28 8944
84 / 29 8622
86 / 30 8313
88 / 31 8014
90 / 32 7728
91 / 33 7454
93 / 34 7192
95 / 35 6940
97 / 36 6699
99 / 37 6467
100 / 38 6245
Table 7 – Defrost Cycle
HRV DEFROST CYCLES
Outside Temp
°F/°C
Defrosting
(minutes)
Operation time (min.)
between each
defrost cycle
23 to ---17°F
--- 5 to --- 27°C
8 25
--- 17°Fandless
--- 27°Candless
10 22
ERV DEFROST CYCLES
Outside Temp
°F/°C
Defrosting
(minutes)
Operation time (min.)
between each
defrost cycle
23 to ---17°F
--- 5 to --- 27°C
9 28
--- 17°Fandless
--- 27°Candless
10 22
ERV / HRV