Service Handbook - AO Smith Water Heaters
Service Handbook - AO Smith Water Heaters
Service Handbook - AO Smith Water Heaters
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
CCB Connection Identification (Cont)<br />
J7 Socket - Temperature Probe/ECO (immersion probe)<br />
Pin #<br />
Description<br />
1 ECO (energy cut out) 24 VAC out (red wire)<br />
2 Temperature Sensor (thermistor) +5.0 VDC (black wire)<br />
3 Temperature Sensor (thermistor) -5.0 VDC (black wire)<br />
4 ECO (energy cut out) 24 VAC return (red wire)<br />
J9 Port - Communication Port - Not Used<br />
J10 Socket - Not Used<br />
J11 Port - Communication Port - Not Used<br />
J13 Socket - Blower Speed Control<br />
Pin #<br />
Description<br />
1 Not used<br />
2 Not used<br />
3 To 5 pin PWM wiring socket on Combustion Blower, see Figure 7 on page 11<br />
4 Not used<br />
5 Not used<br />
6 Not used<br />
7 To 5 pin PWM wiring socket on Combustion Blower, see Figure 7 on page 11<br />
8 To 5 pin PWM wiring socket on Combustion Blower, see Figure 7 on page 11<br />
J15 Socket - Not Used<br />
J16 Port - Communication Port - UIM Display (User Interface Module)<br />
Servicing should only be performed by a Qualified <strong>Service</strong> Agent<br />
43
Change language