Technical Data And Characteristics; Dimensions And Connections; General View And Main Components - Joannes ALPA 31 BS 60 Instrucciones De Uso, Instalación Y Mantenimiento

Fault
Fault Possible cause
code
Sensor damaged
F11 DHW sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
F14 Delivery sensor 2 fault Wiring shorted
Wiring disconnected
Supply voltage under
F34 Electric mains trouble
170V.
F35 Mains frequency fault Electric mains trouble
Pressure too low
Incorrect system water
F37
Water pressure switch not
pressure
connected or damaged
Probe damaged or wiring
shorted
F39 External probe fault
Probe disconnected after
activating the sliding tem-
perature
Delivery sensor detached
A41 Sensor positioning
from pipe
F42 Heating sensor fault Sensor damaged
No H O circulation in sys-
2
Exchanger protection
tem
F43
activation.
Air in system
F50 Modureg fault Wiring disconnected

4. TECHNICAL DATA AND CHARACTERISTICS

4.1 Dimensions and connections

600
277.5
188
55 50 50 50 55 62.5
103
1 5 2 6 4 3
fig. 28 - Dimensions and connections
1 = System delivery 3/4"
2 = Domestic hot water outlet 1/2"
3 = Gas inlet 1/2"
4 = Cold water inlet 1/2"
5 = System return 3/4"
6 = Recirculation 1/2"
25
EN
Cure
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the sensor
Reconnect the external probe or disable the
sliding temperature
Check the correct positioning and operation
of the heating sensor
Replace the sensor
Check the circulating pump
Vent the system
Check the wiring
256
600
cod. 3541B530 - 01/2012 (Rev. 00)

4.2 General view and main components

102
221
14a
114
16
27
278
19
81
82
21
5
20
22
179
130
275
fig. 29 - General view
5 Sealed chamber
7 Gas inlet
8 Domestic hot water outlet
9 Cold water inlet
10 System delivery
11 System return
14a Safety valve 3 bar (heating)
14b Safety valve 9 bar (hot water tank)
16 Fan
19 Combustion chamber
20 Burner assembly
21 Main nozzle
22 Burner
27 Copper exchanger
32 Heating circulating pump
40 DHW expansion tank
44 Gas valve
56 Expansion tank
74 System filling cock
81 Ignition/detection electrode
97 Magnesium anode
102 Air valve
114 Water pressure switch
130 Hot water tank circulating pump
179 Non-return valve
180 Hot water tank
192 Recirculation
221 Bypass cock
233 Hot water tank drain cock
243 Hot water tank temperature sensor
275 Heating system drain cock
278 Double sensor (Safety + Heating)
ALPA 31 BS 60
10 11
8
192 9
7
97
14
74
180
44
56
243
40
32
233