Honeywell SV2 Series User Manual page 201

Fault Fault
Category Description
POC POC 1 (proof
of closure)
incorrect
position
detected
SV2 Series Safety Shut-off Valves
V2F, V2V
Detailed Description
POC 1 switch output does
not match valve seat 1
powered/not powered status.
Could be due to swapped
internal SOLENOID 1/
SOLENOID 2 connections
or swapped internal POC
1/POC 2 connections. Can
occur if valve electronics
orientation is swapped
in field or electronics is
replaced in field.
May also be due to failures
of POC switch, solenoid or
electronics.
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
solenoids 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 connector is placed in the
appropriate terminal (SOLENOID 1) on
the valve electronics assembly.
3.) Inspect internal wiring between
solenoid proof of closure switch(es) 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.
4.) 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.
5.) If fault persists, replace valve main
electronics.
6.) If fault persists, replace entire valve.
201
Comments Fault
#
80