Baxi 741FS Installer's Manual page 25

Heat engine
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INSTALLER GUIDE
When operating the fire for the first time, some
!
vapours may be given off which could set off smoke
alarms in the vicinity. These vapours are quite normal
with new appliances. They are totally harmless and will
disappear after a few hours use.
1. Make sure the slider button is at the off position (At
topmost position marked "O" on the fascia).
2. Open the isolating valve on the inlet 'T' connector.
Replace the sealing screw and test around the sealing
screw for gas soundness with a suitable leak detection
fluid.
Figure 30. Control positions.
3. Slide the button to the bottom (ignition) position
marked
. Retain in this position to ignite the pilot. The
burner should ignite at its lowest setting within 4 seconds of the pilot igniting. Keep at
this position for a further 10 seconds to allow the pilot flame to stabilise.
4. Release the button. The button should automatically spring up to the low heat
position. If the flames go out at this stage or when checking the rest of the setting
positions, try the full lighting sequence again. If the flames fail after two attempts,
investigate the pilot unit.
5. Gradually slide the button up to increase the burner setting. The burner should be at
its maximum setting at the high heat position shown in figure 30. You should feel a
check to the button movement at this position.
6. Slide the control button up past the high heat position to the off ("O") position at the
top of the slide slot. Both pilot and main burner should go out. While cooling the
ceramic fuel effect may make some crackling noises. This is quite normal.
14.2 Check for spillage.
A spillage check must be made before leaving the installed appliance with the
customer. Make this with all the ceramic fuel effect pieces in position.
1. Close all doors and windows in the room containing the appliance.
2. Light the appliance and set the slide control to the maximum burning position.
3. Leave the appliance on for five minutes.
4. The smoke match should be placed horizontally into the hotbox at the right hand side
(See figure 31). The installation is satisfactory if the smoke is drawn into the appliance.
If the smoke is not drawn into the appliance leave the appliance alight at the maximum
setting for a further ten minutes and then repeat the test. If the smoke is still not drawn
into the appliance inspect the sealing to the fireplace surround. If the sealing is
satisfactory but the appliance is installed with the flue restrictor (See section 8 point 6)
Page 25

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