Forsafe,efficientoperation,the vent damper and all flue
product carrying areas of the appliance must be checked annually by you, with particular attention given to deterioration from corrosion or other sources. If you see corrosion or other deterioration, contact your heating contractor tor repairs. Check vent damper operation as follows:
1.When the boiler is off, check that the vent damper position indicator points to the closed position, Fig. 11.
2.Turn the thermostat or controller up to call for heat and check that the vent damper indicator points to the open position, Fig. 11.
3.Turn the thermostat or controller down again and check that the vent damper position indicator returns to the closed position.
MANUAL OPERATION OF THE VENT DAMPER
The Effikal vent damper may be placed in the open position to permit burner operation by using the "HOLD DAMPER OPEN" switch, located on the damper controller. The thermostat will control the burner firing as before, while the damper will remain open. DO NOT turn damper open manu- ally or motor damage will result. Set switch to "AUTOMATIC OPERATION" to close vent damper during burner off cycle.
For further information,and for a vent damper !roubleshooting guide, refer to the Effikal manual that was packaged with the vent damper.
The vent damper must be inspected at least once a year by a trained, experienced service technician, The name of the person who originally installed your vent damper is shown on the installation label,
iIi6010° °1
DAMPER CLOSED | OAMPER OPEN |
SHOWING OPEN AND CLOSED POSmON
