Watts Aerco Benchmark Series User Manual

Benchmark Platinum-Edge: Operation-Service Manual
SECTION 5 – SAFETY DEVICE TESTING
OMM-0137_D • GF-211 • 7/16/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 69 of 146
5.9 SSOV PROOF OF CLOSURE SWITCH CHECK
The SSOV, shown in Figure 5-9, contains the Proof of Closure switch. The Proof of Closure
switch circuit is checked as follows:
SSOV Proof Of Closure Switch Check Instructions
1. Set the Controller’s Enable/Disable switch to Disable.
2. On the Controller, go to: Main Menu  Diagnostics  Manual Run, and then put the unit
in Manual Mode.
3. Set the valve position between 25% and 30% using the + (Plus) and – (Minus) controls.
4. Remove the cover from the SSOV by loosening the screw shown in Figure 5-9. 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 Controller’s Enable/Disable switch to Enable 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.
Figure 5-9: SSOV Actuator Cover Location
SSOV
ACTUATOR
COVER
ACTUATOR
COVER
SCREW

Watts Aerco Benchmark Series Specifications

General

Brand	Watts
Model	Aerco Benchmark Series
Category	Boiler
Language	English