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1.10.2 ATO (Automatic Top-Off) Board Pin Positions and Harnesses<br />
J8<br />
1-15<br />
Pin<br />
# Function Voltage<br />
Wire<br />
Color<br />
Connector From/To Harness #<br />
RTI Add Solenoid<br />
1<br />
2<br />
3<br />
24VAC Ret 24VAC Black<br />
ATO Pump Relay 4 24VAC Ret 24VAC Black<br />
J4 (Rear) /<br />
J5 (Front)<br />
J3 - Vat #3<br />
J2 - Vat #2<br />
J1 - Vat #1<br />
5<br />
6<br />
JIB Reset Switch<br />
RTI Add Solenoid<br />
8074671<br />
7<br />
8<br />
9<br />
JIB Low Reset<br />
24VAC<br />
16VDC<br />
24VAC<br />
Black<br />
Red<br />
10<br />
11<br />
ATO Pump Relay 12 24VAC 24VAC Red<br />
JIB Reset Switch<br />
13<br />
14<br />
15<br />
16 Ground 16VDC Red<br />
1<br />
2<br />
3<br />
24VAC Ret<br />
24VAC<br />
24VAC<br />
Orange<br />
Blue<br />
Transformer 8074553<br />
4<br />
5<br />
6<br />
7<br />
8<br />
12VAC Ret<br />
12VAC<br />
12VAC<br />
Red<br />
Brown<br />
ATO RTD<br />
8074655 - Vat #1<br />
8074654 - Vat #2<br />
8074621 - Vat #3<br />
J6 Orange LED 8074555<br />
J7<br />
J10<br />
Network Resistor<br />
(pins 2 & 3)<br />
or to next ATO Board (4<br />
& 5 vat units)<br />
8074552<br />
J9 AIF J5 8074546<br />
1 DV - Probe Ground<br />
White<br />
2<br />
3<br />
DV - Probe<br />
FV - Probe Ground<br />
Ohm<br />
Red<br />
White<br />
4 FV - Probe Red<br />
1<br />
2<br />
1<br />
2<br />
16VDC<br />
16VDC Ret<br />
16VDC<br />
Black<br />
Red<br />
3 Ground<br />
4 RB7/DATA<br />
5 RB6/CLOCK<br />
1 Ground Black<br />
2 CAN Lo Red<br />
3 CAN Hi White<br />
4 5VDC+ 5VDC Black<br />
5 24VDC 24VDC Red<br />
6 Ground White<br />
1 Ground Black<br />
2 CAN Lo Red<br />
3 CAN Hi White<br />
4 5VDC+ 5VDC Black<br />
5 24VDC 24VDC Red<br />
6 Ground White
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