Watts Aerco INN 1060N - Purge Switch Open During Purge; Ignition Switch Open During Ignition

Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 5 – SAFETY DEVICE TESTING
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 75 of 170
SSOV Proof of Closure Switch Instructions
4. Disconnect wire #148 from the SSOV to “open” the Proof Of Closure switch circuit.
5. The unit should fault and display SSOV Switch Open.
6. Replace wire #148 and press the CLEAR button.
7. Set the Controller’s Enable/Disable switch to the Enable position.
8. Remove the wire again when the unit reaches the purge cycle and PURGING is displayed.
9. The unit should shut down and display SSOV FAULT DURING PURGE.
10. Replace the wire on the SSOV and press the CLEAR button. The unit should restart.
Figure 5.9: SSOV Actuator Cover Location
5.10 PURGE SWITCH OPEN DURING PURGE
The Purge switch (and Ignition switch) is located on the Air/Fuel Valve. To check the switch,
proceed as follows:
Purge Switch Open During Purge Instructions
1. Set the Controller’s Enable/Disable switch to the Disable position.
2. Put the unit in Manual Mode by going to the Main Menu → Diagnostics → Manual Run
and setting the Manual Mode toggle to Enabled, then set the valve position between 25%
and 30%.
3. Remove the Air/Fuel Valve cover by rotating the cover counterclockwise to unlock it (see
Figure 5.11-1).
4. Remove one of the two wires (#171 or #172) from the Purge switch (Figure 5.11-2).
5. Initiate a unit start sequence.
6. The unit should begin its start sequence, then shut down and display PRG SWITCH OPEN
DURING PURGE.
7. Replace the wire on the Purge switch and depress the CLEAR button. The unit should
restart.
5.11 IGNITION SWITCH OPEN DURING IGNITION
The Ignition switch (and the Purge switch) is located on the Air/Fuel Valve. To check the
switch, proceed as follows:
SSOV ACTUATOR COVER
ACTUATOR
COVER SCREW