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41
1
2
3
J7
PCB2
3 2 1
CB
GRN
24 V
X2X1
TRAN
GRN
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
18
17
PCB3
J3
J4
J2
123
J7
SW1
12345678
1
0
RED
WHT
BLK
Tower Sump Temp
0 1
HEAT
1
Building Pressure
Leaving Water Temp
Indoor Air Quality
-
+
Indoor Relative Humidity
-
+
-
+
Outdoor Air Temperature
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0 1
HEAT
2
0 1
PUMP
0 1
HEAT
4
0 1
HEAT
3
0 1
TOWER
0 1
DEHUM
Exhaust
Fan Control
4-20 mA
-
+
12345678
INT
EXT
SW2
12345678
4-20 mA
OTHER
SW3
12345678
4-20 mA
SW4
0-10 VDC
SW5
1234
DO
AO
SW6
1234
DO
AO
50BV,XJ Accessory Control Module (PCB3) Schematic