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CONTROL
CONTROL POINT
CURVE
APPROX. °F (°C)
AT 50% RH
A
73 (23)
B
70 (21)
C
67 (19)
D
63 (17)
35
(2)
35
(2)
APPROXIMATE DRY BULB TEMPERATURE— °F (°C)
EXH
N1
Set
N
2V
10V
EXH
P1
P
Min
Pos
T1
Open
T
DCV
Max
2V
10V
AQ1
DCV
AQ
DCV
Set
SO+
2V
10V
SO
Free
SR+
Cool
C
SR
B
D
A
Fig. 36 — EconoMi$er IV Control
75
(24)
70
(21)
65
(18)
60
(16)
A
55
(13)
B
50
C
(10)
D
45
(7)
40
(4)
D
40
45
50
55
60
65
70
(4)
(7)
(10)
(13)
(16)
(18)
(21)
(24)
Fig. 35 — Enthalpy Changeover Set Points
TR1
TR
24
24 Vac
Vac
COM
HOT
_
+
1
2
5
3
4
EF1
EF
23
85
90
95
100
105
110
(29)
(32)
(35)
(38)
(41)
(43)
80
(27)
A
B
C
75
80
85
90
95
100
105
110
(27)
(29)
(32)
(35)
(38)
(41)
(43)
CO SENSOR MAX RANGE SETTING
2
6000
5000
4000
3000
2000
1000
0
2
3
4
DAMPER VOLTAGE FOR MAX VENTILATION RATE
Fig. 37 — CO
Sensor Maximum Range Setting
2
HIGH LIMIT
CURVE
800 ppm
900 ppm
1000 ppm
1100 ppm
5
6
7
8
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