Honeywell SV2 Series User Manual page 199

Fault Fault
Category Description
POC POC (proof of
closure) fault for
MV1
POC (proof of
closure) fault for
MV2
SV2 Series Safety Shut-off Valves
V2F, V2V
Detailed Description
Fault detected in POC 1
switch or its connection to
valve circuit board.
Possible internal fault in
electronics interface to POC
1 switch.
Fault detected in POC 2
switch or its connection to
valve circuit board.
Possible internal fault in
electronics interface to POC
2 switch.
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
Remediation Steps
Remove power and shut-off gas supply as
necessary.
1.) Remove valve front electrical and rear
solenoid enclosures.
2.) Inspect internal wiring between
solenoid proof of closure switch 1 and
valve electronics. The solenoid number
is indicated by the direction of flow arrow
and number (1) in the valve casting.
Ensure the appropriate solenoid proof
of closure connector is placed in the
appropriate terminal (POC 1) on the valve
electronics assembly and is properly
seated and the wires are not loose.
3.) Replace cover and restore power and
gas. Reset valve and burner management
system, monitoring for proper POC
operation in conjunction with valve LEDs
and burner management system inputs.
4.) If fault persists, replace valve main
electronics.
5.) If fault persists, replace entire valve.
Remove power and shut-off gas supply as
necessary.
1.) Remove valve front electrical and rear
solenoid enclosures.
2.) Inspect internal wiring between
solenoid proof of closure switch 2 and
valve electronics. The solenoid number
is indicated by the direction of flow arrow
and number (2) in the valve casting.
Ensure the appropriate solenoid proof
of closure connector is placed in the
appropriate terminal (POC 2) on the valve
electronics assembly and is properly
seated and the wires are not loose.
3.) Replace cover and restore power and
gas. Reset valve and burner management
system, monitoring for proper POC
operation in conjunction with valve LEDs
and burner management system inputs.
4.) If fault persists, replace valve main
electronics.
5.) If fault persists, replace entire valve.
199
Comments Fault
#
75
76