Fig. 2. Module mounting recommendations.
Install Selection Tab
Four selection tabs are included with the S8910U. See Tables 1 through 4. Select the correct tab for the system and
separate the tab from the other three tabs. Install the tab on the module. Be sure the selection tab is properly
positioned and firmly inserted. See Fig. 3. Discard all unused selection tabs at a remote location so an incorrect tab
cannot be used in the future. Without a selection tab, the module operates at a four-second trial time and one ignition
trial.
WARNING
EXPLOSION HAZARD. CAN CAUSE INJURY OR EQUIPMENT DAMAGE.
Only trained professional gas appliance service technicians should install and check out the S8910U and selection
tabs. Use only the selection tab specified in Tables 2, 3, and 4 for the existing module being replaced. Always
remove all unused selection tabs from the job site and discard them at a remote location. Improper use of the
selection tabs can result in appliance malfunction.
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