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
TowerSump Temp
0 1
HEAT
1
Building Pressure
Leaving WaterTemp
IndoorAir Quality
-
+
Indoor Relative Humidity
-
+
-
+
OutdoorAir 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