Honeywell SV2 Series User Manual page 146

SV2 Series Safety Shut-off Valves
12. Select the 'Home' wording at the top to go to the Home page (refer to
to the valve status page (refer to
13. After cloning is complete, start the valve in the Installer or OEM mode and set the new fuel/air Correction Curve and record
the Ign. Air Level to make the valve fully operational.
CHAPTER 8 : FUEL/AIR RATIO MODULE CHANGE-OUT PROCEDURE
FARMOD Replacement Background
Applies to valve firmware version 12.01 or later. HMI/PC Tool software version 12.01.002 or later
Should field replacement of the Fuel/Air Module be necessary, ensure that the correct model is ordered. Refer to
or the model information on the FARMOD installed on the valve.
During normal operation, certain FARMOD fuel/air parameters are automatically backed up in the valve main electronics.
However, replacement of the FARMOD does result in partial loss of the commissioning data, which requires partial re-
commissioning of the application. This is because parameters specific to a particular FARMOD, including the Correction Curve
and the recorded pre-ignition air value (Record Ign. Air Level), are not stored in the valve main electronics board.
After connecting a new or previously configured / used FARMOD, lockout condition(s) will result. The user needs to confirm
acceptance of the replaced FARMOD on the FARMOD tab in the Setup & Tests menu, or they can use the guided setup routine to
complete all setup functions.
When the FARMOD is replaced:
• The FARMOD back-up data stored on the valve main electronics board is automatically loaded onto the replacement FARMOD
once the valve is powered. Normal operation of the valve will be locked until the Ign. Air Level is recorded (refer to
and Fig. 134) and a minimum of 4 points are re-commissioned on the Correction Curve (minimum, maximum and two
intermediate loads) (refer to
• The user can choose to modify the existing setup (if allowed by the OEM) by logging in with the proper access level
credentials. The OEM Base curve can be modified by deleting single points or deleting all points and re-creating the curve.
Refer to Fig. 56.
NOTES:
• In order for the Installer to perform the FARMOD replacement in the field, the OEM must grant them access to the
following Valve Access Levels Settings. Refer to
– FARMOD. The replacement FARMOD must be Accepted. Refer to
₀ The Record Ign. Air Level box must be checked when replacing the FARMOD in the field. Refer to
134.
₀ The Record Ign. Air Level check box access is included with the FARMOD access level. Note that the Record Ign. Air
Level check box resides on the FAR Ignition page.
– FAR Corrective Curve. The Correction Curve must be re-commissioned. Refer to
Fig. 112).
Fig. 129 and Fig. 135).
Fig. 123
Fig. 99 and Fig.
and Table 24.
Fig. 126 and Fig.
146
111) or the valve name wording to go
Table 16
132.
Fig. 128
Fig. 129 and Fig. 135.
and/
Fig. 128
and Fig.
32-00029—02