Honeywell SV2 Series User Manual page 186

SV2 Series Safety Shut-off Valves
Fault Fault
Category Description
FARMOD
EEPROM
factory data
corrupted
Fuel/Air
Correction
Curve Max not
defined
Fuel/Air
Correction
Curve Min not
defined
Fuel/Air
Fuel/Air motor
driver
Detailed Description
The factory stored data
inside the Fuel/Air Module is
corrupted, contact your OEM
for advice.
This fault is ignored when the
Installer or OEM are logged
into the valve.
If the curve maximum
was not defined during
commissioning and
commissioning mode is
exited, the valve will lockout
on this fault.
This fault is ignored when the
Installer or OEM are logged
into the valve.
If the curve minimum
was not defined during
commissioning and
commissioning mode is
exited, the valve will lockout
on this fault.
Fuel/Air stepper motor
fault signal is active due
to possible overheat or
electrical short.
Remediation Steps
1.) Replace Fuel/Air Ratio Module.
2.) Accept new Fuel/Air Ratio Module on
the FARMOD tab in the Setup & Tests
menu of user interface.
3.).Recommission partially or fully as
desired.
4.) Reset valve and burner management
system.
Commission the Fuel/Air curve, ensuring
the maximum firing rate is entered.
Commission the Fuel/Air curve, ensuring
the minimum firing rate is entered.
1.) Remove power from valve and allow
fuel/air stepper motor to cool down for
a minimum of 5 minutes in case of an
overheat situation.
2.) Reset valve and burner management
system, observing valve / burner
operation.
Remove power and shut-off gas supply as
necessary.
3.) Remove valve front electrical enclosure
and verify the stepper motor terminating
connector is fully inserted in the socket
labeled 'MOTOR' in the electrical
enclosure. Replace electrical enclosure.
5.) Reset valve and burner management
system, observing valve / burner
operation.
6.) If fault persists, replace valve main
electronics.
7.) If fault persists, replace valve and re-
commission.
186
Comments Fault
#
45
50
52
54
32-00029—02