14 | Regency U31-10 Gas Fireplace Insert|14installationDiagram 13) After five minutes, test that there is a “pull” onthe flue by placing a smoke match, cigarette orsimilar device which gives off smoke, in frontof the spill tube. To ensure a valid test, place ascrap piece of sheet metal (or other noncom-bustible material) between the spill tube andthe upper louver, this will prevent the naturalconvection of the unit from interfering with thetest. See diagram 1.The smoke should be drawn into the spill tube. Ifthe smoke is still not drawn into the spill tube, turnthe unit off and check for the cause of the lack ofdraft. If necessary, seek expert advice.For wind turbulent sites, a wind cap may remedythe problem.Note: The thermally activated safety switch willsense the change in temperature and shut downthe gas valve in the event of a severe downdraftor a blocked or disconnected vent. The switchacts as a safety shut-off to prevent a build-upof carbon monoxide. If the flue is blocked orhas no "draw", the switch will automaticallyshut off the supply of gas within 5 - 10 minutes.Tampering with the switch can result in carbonmonoxide (CO) poisoning and possible death.If the heater turns off because of lack of draftduring the spillage test, check for the cause andif necessary, seek expert advice.The thermally actuated safety switch will auto-matically reset after it has cooled off. The switchwill continue to cycle until the draft problem iscorrected. DO NOT BYPASS OR DISCONNECTTHIS SWITCH.OPTIONALBRICK PANEL1) Unwrap the brick pattern panels from the pro-tective wrapping.2) Remove the safety screen and glass front if itis already installed.3) Put the rear brick panel flat against the back ofthe unit.TEST FOR FLUESPILLAGEA " spillage" test must be made before theinstalled unit is left with the customer. Followthe procedure below:1) Start all exhaust fans in the home and thenclose all external doors and windows in thehouse.2) Light the unit and set controls to maximum.Turn fan off.GAS INSERT AERATIONSYSTEMThe aeration adjustment rod is attached to theair shutter which is located just above the orificebracket. The rod is used to adjust the aerationon the main burner without having to take theappliance apart.The burner aeration is factory set but may needadjusting due to either the local gas supply, airsupply or altitude.Natural Gas: 3/8" (9.5mm) openPropane: 3/8" (9.5mm) openNote: Any damage due to carboning resultingfrom improperly setting the aerationcontrols is NOT covered under war-ranty.Note: Aeration Adjustment should onlybe performed by an authorized FPIInstaller at the time of installation orservice.4) Before installing the side brick panels, loosenthe screws for the brick tabs enough so that youcan slide the brick clips on to the screws easilybut that the tabs are secure. For the locationof the side brick tab screws see Diagram 2.5) Slide brick panel under brick clips, tighten screwssecuring clips to complete installation.Back PanelBrick clipDiagram 1Diagram 2Diagram 3Check for proper draft by placing a match close tothe draft check opening. This should be checkedafter the unit has been operating for 15 min.