RT-SVD03L-EN
135
Table 96.
Temperature input (continued)
Temp F
Temp C
R(K OHMS)
DC Volts
60.8
16
4.545
3.328
62.6
17
4.335
3.283
64.4
18
4.136
3.239
66.2
19
3.948
3.18
68
20
3.769
3.157
69.8
21
3.599
3.118
71.6
22
3.437
3.08
73.4
23
3.284
3.034
75.2
24
3.138
3.007
77
25
3
2.971
78.8
26
2.869
2.932
80.6
27
2.744
2.896
82.4
28
2.625
2.86
84.2
29
2.512
2.824
86
30
2.404
2.787
87.8
31
2.301
2.75
89.6
32
2.204
2.714
91.4
33
2.111
2.676
93.2
34
2.023
2.639
95
35
1.938
2.6
96.8
36
1.858
2.561
98.6
37
1.781
2.526
100.4
38
1.708
2.484
Note:
Obsolete - not available to order - Honeywell
Electromechanical
3 Position Damper
N
No
otte
e:: Obsolete - Honeywell only
Full open economizer minimum position is
accomplished by setting the ECA 50% minimum
position potentiometer to 100% and installing a set of
contacts in series with the existing 130 ohm resistor to
terminals P and P1 on the ECA.
Any intermediate (0 - 50%) economizer position is
accomplished by installing a 0 - 270 ohm potentiometer
in series with an additional set of contacts and the
existing 130 ohm resistor to terminals P and P1 on the
ECA. 0 ohms = 50% outside air and 270 ohms = 0%
outside air.
Fully closed position is accomplished when the indoor
fan is disabled.
N
No
otte
e:: Actual outside airflow is also dependent on
return air static pressure.
Figure 85.
Electromechanical economizer - 3 position
damper
Set pot at
100%
130 ohm resistor shipped
with the economiz
er and
connected from P to PI
from the factory
.
0-270 ohm
P
P1
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