Joannes ALPA 31 BS 60, Instructions For Use, Installation And Maintenance

Page: 25 / 68

ALPA 31 BS 60
25
EN
cod. 3541B530 - 01/2012 (Rev. 00)
4. TECHNICAL DATA AND CHARACTERISTICS
4.1 Dimensions and connections
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”
4.2 General view and main components
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 ( Heating)
F11 DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F14 Delivery sensor 2 fault
Sensor damaged
Check the wiring or replace the sensor Wiring shorted
Wiring disconnected
F34
Supply voltage under
170V.
Electric mains trouble Check the electrical system
F35 Mains frequency fault Electric mains trouble Check the electrical system
F37
Incorrect system water
pressure
Pressure too low Fill the system
Water pressure switch not
connected or damaged
Check the sensor
F39 External probe fault
Probe damaged or wiring
shorted
Check the wiring or replace the sensor
Probe disconnected after
activating the sliding tem-
perature Reconnect the external probe or disable the
sliding temperature
A41 Sensor positioning
Delivery sensor detached
from pipe Check the correct positioning and operation
of the heating sensor
F42 Heating sensor fault Sensor damaged Replace the sensor
F43
Exchanger protection
activation.
No H
2
O circulation in sys-
tem
Check the circulating pump
Air in system Vent the system
F50 Modureg fault Wiring disconnected Check the wiring
Fault
code
Fault Possible cause Cure
850
600 600
821
256
277.5
188
103
55 50 50 50 55 62.5
223
137.5
256
1 5 2 6 4 3
221
97
14
74
180
44
56
243
40
32
233
102
14a
114
16
278
21
27
20
22
19
81
82
5
179
130
275
10 11
7
192 9
8