Ferroli TEMPRA 30 Installation, Service And User Instructions Manual page 35

7.07 Removal of burner (fi g. 33)
• Isolate gas and electricity supplies
• Remove outer case (two screws bottom rear
corners)
• Remove room sealed cover
• Disconnect ignition and fl ame rectifi cation
leads "A"
• undo gas rail union "B"
• Undo two screws securing the burner assembly
to the boiler combustion chamber "D"
• Withdraw the burner assembly
7.08 Injectors (fi g. 33)
• Proceed as 7.07
• Remove fi xing screw "C" on both
sides of gas collector
• Remove gas collector
• Unscrew and remove injectors;
• Clear or change injectors
7.09 Removal of fan (fi g. 34)
• Isolate gas and electricity supplies
• Remove outer case (two screws bottom rear
corners)
• Remove room sealed cover
• Disconnect fan electrical leads "A"and note
positions
• Disconnect air pressure tubes from air pressure
switch "B" + note positions
• Undo two screws securing fan assembly "C"
• Remove fan from boiler
• Swap mounting plate over to new fan + replace
in reverse order
7.10 Limit thermostat, or overheat cut off
thermostat (fi g. 34)
• Isolate electricity
• Remove outer case (two screws bottom rear
corners)
• Remove room sealed cover
• Identify the location of thermostat from fi g. 31
• Pull out thermostat from tube, with its spring
• Remove electrical connections from thermostat
• Remove spring from thermostat
• Replace in reverse order
TEMPRA 30
D
A
B
Overheat cut off
D
C
A
C
Limit thermostat
B
Fig. 33
Fig. 34
35