Honeywell C7400 Manual page 14

SOLID STATE ECONOMIZER SYSTEM
CONTROL
Fig. 19. Partial psychrometric chart with single C7400C enthalpy sensor and the W7212 logic module A, B, C, D, and E
C7400A OUTPUT CURRENT
100
90
80
70
60
50
40
30
20
10
40 50 60
(4) (10) (16)
Fig. 20. C7400A Sensor output current vs. relative humidity.
63-2484—03
CONTROL POINT
CURVE APPROX. °F (°C)
AT 50% RH
A 73 (23)
B 70 (21)
C 67 (19)
D 63 (17)
E 55 (13)
50
(10)
45 D
(7)
40
E
(4)
35
(2)
35 40 45 50
(2) (4) (7) (10)
APPROXIMATE DRY BULB TEMPERATURE— °F (°C)
1
HIGH LIMIT CURVE FOR W7210D, W7212, W7213, W7214, W7340C.
70 80 90
(21) (27) (32)
TEMPERATURE F (C)
80
(27)
75
(24)
70
(21)
65
(18)
60
(16)
A
55
(13)
B
C
B
C
D
E
55 60 65 70 75 80
(13) (16) (18) (21) (24) (27)
performance curves.
100
(38)
M9101
Fig. 21. C7660 Temperature Sensor Dip Switch Settings.
14
85 90 95 100 105 110
(29) (32) (35) (38) (41) (43)
1
A
85 90 95 100 105 110
(29) (32) (35) (38) (41) (43)
M23879A
CHANGEOVER
DIP SWITCH
TEMPERATURE
POSITION
ON
48ºF
OFF
1 2 3
ON
53ºF
OFF
1 2 3
ON
55ºF
OFF
1 2 3
ON
58ºF
OFF
1 2 3
ON
63ºF
OFF
1 2 3
ON
68ºF
OFF
1 2 3
ON
73ºF
OFF
1 2 3
ON
78ºF
OFF
1 2 3
M27636