Mynute Boiler B.A.I.
21
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to
(OFF), wait 5-6 seconds then
set it to the required position (summer mode) or
(winter
mode). If the reset attempts do not reactivate the boiler, contact the
Technical Assistance Centre.
Fault A04
In addition to the fault code, the digital display shows the symbol
.
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to
(OFF)
and adjust the filling tap
(
B
- fig. 10)
until the pressure reaches a
value between 1 and 1.5 bar.
Then position the mode selector to the desired position (sum-
mer) or
(winter).
If pressure drops are frequent, request the intervention of the Tech
-
nical Assistance Service.
TECHNICAL DATA
DESCRIPTION
MYNUTE BOILER 28/60 B.A.I.
Heating
Heat input
kW
31,00
kcal/h
26.660
Maximum heat output
kW
28,06
kcal/h
24.127
Minimum heat input
kW
14,00
kcal/h
12.040
Minimum heat output
kW
12,32
kcal/h
10.595
DHW
Heat input
kW
31,00
kcal/h
26.660
Maximum heat output
kW
28,06
kcal/h
24.127
Minimum heat input
kW
9,80
kcal/h
8.428
Minimum heat output
kW
8,57
kcal/h
7.366
Useful efficiency (Pn max - Pn min)
%
90,5 - 88,0
Efficiency 30% (47° return)
%
89,9
Combustion performance
%
91,1
Electric power
W
49
Circulator electric power (1.000 l/h)
W
39
Category
II2H3+
Country of destination
-
Power supply voltage
V - Hz
230 - 50
Degree of Protection
IP
X5D
Pressure drops on flue with burner on
%
8,86
Pressure drops on flue with burner off
%
0,32
Heating operation
Pressure - maximum temperature
bar - °C
3 - 90
Minimum pressure for standard operation
bar
0,25 - 0,45
Selection field of heating water temperature
°C
40 / 80
Pump: maximum head available
mbar
227
for system capacity
l/h
1.000
Membrane expansion tank
l
10
Expansion tank pre-charge
bar
1
DHW operation
Maximum pressure
bar
8
Hot water quantity with ∆t 25°C
l/min
16,1
with ∆t 30°C
l/min
13,4
with ∆t 35°C
l/min
11,5
Selection field of DHW temperature
°C
37 / 60
Flow regulator
l/min
13
Gas pressure
Methane gas nominal pressure (G20)
mbar
20
LPG liquid gas nominal pressure (G30)
mbar
28 - 30
LPG liquid gas nominal pressure (G31)
mbar
37
Fault A06
The boiler operates normally but cannot reliably maintain a con-
stant domestic hot water temperature, which remains set at around
50°C. Contact the Technical Assistance Centre.
Fault A07
Contact the Technical Assistance Centre.