AERCO Electronic Controls System (ECS) - Manual (Page 79)

Electronic Control System (ECS) and Type CXT-E Valve
APPENDIX B
VD2: 02/28/14 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Page 79 of 82
AC-105 OMM-0003_0D
Appendix B
ECS WIRING & TERMINAL BLOCK CONNECTIONS
AC POWER IN (120
/240
VAC
)
ECS Wiring Diagram
1
A
HA
1
B
HB
1
C
HC
2
A
2
B 1
D
HE HF HD
3
B
3
D
3
C
2
D
3
A
2
C
JD JF JE JB JC JA
LA LB LC AA AB AC VI V
+
V
-
+
In
1
In
2
NO NC
C + -
WHITE RED
120
/240
VAC
GREEN
FLOW SENSOR
BLACK RED
THERMO COUPLE OUTLET
5 4 3 1 2
ACTUATOR
1
2
7
8
10
9
11
PROBE INPUT
+
-
+
24
VDC
FROM DC POWER SUPPLY
NC
NO
COM
THERMOCOUPLE (OUTLET TEMP
)
SOLENOID
VALVE
+
-
OVER TEMPERATURE SWITCH
COMMON
24
VDC
4
-20
MA
12VDC
FROM
VOLT.
REG.
TUBESIDE
(IN
)
THERMOCOUPLE
PROBE INPUT
1
2
-
+ 7
8
9
10
11
TUBESIDE TEMPERATURE
(IN
)
PROBE INPUT
1
2
7
10
8
9
11
+
-
TUBESIDE TEMPERATURE
(OUT
)
WATER TO WATER HEAT EXCHANGER ONLY
DC POWER SUPPLY (120
VAC
/
240
VAC
)
+
V
+
V
NEUTRAL LINE
CONTROLLER
RED
WHITE
-
TUBESIDE
(OUT
)
THERMOCOUPLE
FLOW
(0
-5
VDC
)
+ -
L N
ON
RESET
DIP SW
.
12
VDC
FROM VOLTAGE REGULATOR
260
V
2
A RELAY
103
104
P
/O TB
-1
104
105
112
111
116
115
107
104
117
118
107
104
* COMM (SEE TABLE 2-1 )
100 102
104
105
104
113 104 105
113
104
104
114
+
104
-
104
-
P
/O TB
-1
109 110
106
107
103
100 102
(FEEDBACK
)
-V -V
(OUTPUT 24
VDC
)
+ -
105
+
24
VDC TO
OVER TEMP
.
SWITCH
12
VDC
FROM VOLTAGE REGULATOR
104
RED
WHITE
GND
+
-
WHITE
+
RED
-
1
A
1 2
101
TB
-2
LINE
102
NEUTRAL
102
SWITCH
GROUND
GND
+
V
TO SOLENOID VALVE
100
106
104 106 114
P
/O
TB
-1 P
/O
TB
-1
VOLTAGE REGULATOR
LM
7812
+
+
-
INPUT
OUTPUT
-
105
104 107
12
VDC TO
OVER
-TEMP
SWITCH
24
VDC
12
VDC
-V
+ -
LINE 100
P
/O
TB
-2
102
P
/O
TB
-2
102
100
LINE
NEUTRAL
P
/O
TB
-2
P
/O
TB
-1
105
104
P
/O TB
-1
P
/O TB
-1
P
/O TB
-1
* * *
-V FROM POWER SUPPLY