Ssov Proof Of Closure Switch - Watts Aerco Innovation 800 User Manual

Innovation Hot Water Hot Water Boiler User Manual
AIR INLET
EXHAUST
MANIFOLD
Figure 5-5. Hot Water Boiler Rear View Showing Air Inlet Location

5.9 SSOV PROOF OF CLOSURE SWITCH

The SSOV shown in Figure 5-1 contains the Proof Of Closure switch. The Proof Of Closure
switch circuit is checked as follows:
1. Set the unit's ON/OFF switch to the OFF position.
2. Place the unit in Manual mode and set the valve position between 25% and 30%
3. Refer to Figure 5-1 and locate the SSOV.
4. Remove the cover from the SSOV by loosening the screw shown in Figure 5-6. Lift off the
cover to access the terminal wiring connections.
5. Disconnect wire #148 from the SSOV to "open" the Proof Of Closure switch circuit.
6. The unit should fault and display SSOV SWITCH OPEN.
7. Replace wire #148 and press the CLEAR button.
8. Set the ON/OFF switch to ON to start the unit.
9. Remove the wire again when the unit reaches the purge cycle and PURGING is
displayed.
10. The unit should shut down and display SSOV FAULT DURING PURGE.
11. Replace the wire on the SSOV and press the CLEAR button. The unit should restart.
Page 68 of 174
11/15/2016
CHAPTER 5 – SAFETY DEVICE TESTING
PARTIAL REAR VIEW
SSOV Proof of Closure Switch
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
- INTERNATIONAL
COLD WATER
INLET
DRAIN
VALVE
OMM-0120_0A
GF-128-I