21
INSTALLATION AND OPERATION MANUAL
9. Motherboard
M
Black
Red
White
Burner
cleaner
Igniter
N
Blue N
N
White
Water flow
sensor
Trasduttore
External
probe
High
tank probe
Low Tank
probe
DHW probe*
Red
White
Blue
Black
Red
Yellow
Display
pin 54
pin 55
pin 43 +V
(*)
instead of DHW probe
Red
Black
Smoke fan
encoder
Room
probe
Water
probe
Smoke
probe
Line (250V - 50Hz)
Combustion
fan
Air
fan
Auger
AT2 Safety
Pressure
Switch
AT1 Safety
Thermostat
Electro
valve
Red
Red
Pump
Bridge
Point
Note:
Burner
Cleaner
Switch
Room
thermostat
10. After Sale Service
Only authorized Ungaro personnel may ac-
cess to the electrical or mecanical parts of
the appliance.
Contact your retail shop with questions
regarding installation, operation or service.
10.1 Technical intervention
Please read this manual carefully before
asking for a technical intervention. Before
calling Customer Support provide the fol-
lowing data:
1. Dealer/Retailer contact data;
2. Purchase receipt or invoice;
3. Boiler/thermostove serial number
(you can find it on the rear panel
fig.24);
10.2 Documents to show by customer
In case of intervention provide these
documents:
1. Purchase receipt;
2. Invoice;
3. Heating system scheme;
4. Heating System Compliance Certifica-
te;
5. Electrical Certificate of Compliance;
6. Declaration of Chimney Conformity.
