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Euro Combi A/27 MFFI
Ariston Euro Combi A/27 MFFI User Manual
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A/23 MFFI - A/27 MFFI
G.C
.N.
47-116-10 / 47-116-12
Servicing Instructions
T
ype C
Boilers
LEA
VE THESE
INSTRUCTIONS
ADJA
CENT TO THE
GAS
METER
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 Servicing Instructions
3
Replacement of Parts
3
To Gain General Access
3
Removing the Side Panels
4
To Lower the Control Panel
4
Access to the Combustion Chamber
5
Removing the Sealed Combustion Chamber
5
Removing the Burner and Injectors
5
Removing the Electrodes
6
Removing the Main Heat Exchanger
7
Removing the Air Pressure Switch
7
Removing the Venturi Device
8
Removing the Fan
8
Servicing and Removal of the Gas Valve
9
Setting Gas Pressure
10
Removing the Gas Valve
14
Access to the Hydraulic Circuit
14
Removing the D.H.W. (Secondary) Exchanger
14
Removing the Safety Valve
15
Removing the Automatic Air Vent
15
Removing the Main Flow Circuit Switch
15
Removing the Pump
16
Removing the Pressure Gauge
16
Removing the Expansion Vessel
17
Removing the Overheat Thermostat
17
Removing the Heating Temperature Sensor (N.T.C.)
17
Access to the Control System
18
Removing the Time Clock
18
Removing the P.C.b.s
19
2 Fault Finding
20
Fault Finding Guide (Flow-Chart)
20
Fault Finding Using the Total Check System
25
3 Electrical Diagrams
26
4 Short Spare Parts List
28
4
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Ariston Euro Combi A/27 MFFI Specifications
General
Fuel Type
Gas
Output Power
27 kW
Efficiency
90%
Water Pressure
1.5 bar
Type
Combi
Mounting
Wall-mounted
Max Gas Rate
2.78 m3/h
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