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Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 5
– SAFETY DEVICE TESTING
OMM-
0137_E • GF-211 • 12/13/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
75
of
153
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