Air Pressure Switch; D.h.w. Temperature Sensor Or Central Heating Temperature Sensor; Water Pressure Switch - Ferroli MODENA 80 E Installation, Servicing And User Instructions Manual
Copper wall-mounted combination, gas fired boiler for central heating and domestic hot water production, fan assisted, room sealed compartment, electronic flame ignition and control
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7.0
as al e (fi g. 3 )
• Isolate gas and electricity supplies
• Remove outer case
(two screws bottom rear corners)
• Remove the two securing screws and lower control panel
• Disconnect electrical connections
• Disconnect plastic tube "C"
•
oosen the connection "D" on gas pipe and the gas inlet
connection of the boiler " "
• Remove the two fi xing screw " " below
•
lide out gas valve
• Remove four fi xing screw " " on top of the valve and disconnect
the gas pipe
• Remove bottom connection from gas valve.
•
it top
bottom gas connections to the
replace in reverse order
7.06
Air pressure s it
• Isolate electricity
• Remove outer case (two screws bottom rear corners)
• Open room sealed department
• Remove the two screw "A" fi xing air pressure switch
• Disconnect electrical leads "B"
• Remove pressure sensing tubes (white=D; Red=C)
• Note relevant positions of all connections and replace in reverse order.
7.07.1 D.H.W. temperature sensor or
Central Heating Temperature Sensor (fi g. 34)
• Isolate electricity and water supplies
• Remove outer case (two screws bottom rear corners)
• Remove the two securing screws and lower control panel
• Identify the sensor from fi gure 34
• Disconnect electrical connection to the sensor
• Drain the affected service either D.H.W. or C.H.
• Unscrew the sensor
• Replace in reverse order
7.07. Water ressure S it
• Isolate electricity and water supplies
• Remove outer case (two screws bottom rear corners)
• Remove the two securing screws and lower control panel
• Identify the switch from fi gure 34
• Disconnect electrical connections
• Drain the boiler
• Unscrew the sensor
• Replace in reverse order
7.07.3 Sa et
al e (fi g. 34)
• Isolate electricity and water supplies
• Remove outer case (two screws bottom rear corners)
• Remove the two securing screws and lower control panel
• Identify valve from fi g. 34
• Drain the boiler
• Release the outlet union to the valve and
union connection
• Remove the valve outlet fi tting
• Replace in reverse order
from valve ("A")
gas valve
new gas valve and
(fi g. 33)
(fi g. 34)
note positions to the switch
undo the valve
Water pressure s it
C.H. sensor
Sa et
D.H.W. sensor
al e
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