Baxi PBM-i 20 Manual Del Usuario página 106

INSTALLER CONNECTIONS
KM4 DHW storage electric heater
An electric heater can be managed for heating the DhW
storage.
DHW storage electric heater control
The electric heater is activated to reach a temperature value
that the heat pump on its own is not able to reach.
Example:
Domestic hot water temperature produced with heat pump
0023 = 55°C
Domestic hot water temperature produced with electric
heater 0209 = 65°C.
The electric heater works so as to increase the DhW stor-
age temperature from 55°C to 65°C, figure 1
Description
Electric heater operating mode
0 = DhW production disabled
1 = heat pump only
2 = Electric heater only
3 = heat pump + electric heater
Domestic hot water temperature
set point with heat pump
Domestic hot water temperature
set point with heater
Legionella prevention function with electric heater
The Legionella prevention function ensures the elimination
of the Legionella bacteria that reside in domestic water stor-
age tanks. The temperature and duration of the Legionella
prevention cycles are typically:
• 2 minutes > 70°C
• 4 minutes > 65°C
• 60 minutes > 60°C
To enable the Legionella prevention function, set 0222=1
26 PBM 20÷40 EN
Menu Parameter Value to be UOM
no. set
Mn02 0202 0
Mn00 0023 Example
55
Mn02 0209 Example
65
10 11
N U
1
0209
0023
ON
°C
Compressor
OFF
°C
ON
Heater
OFF
Description
Domestic hot water heating
0 = DhW production disabled
1 = heat pump only
2 = Electric heater only
3 = heat pump + electric heater
Legionella prevention function
with:
0 = heat pump only
1 = electric heater only
2 = heat pump + electric heater
Domestic hot water temperature
set point for Legionella prevention
Legionella prevention cycle day
MONDAY (0=no; 1=yes)
Legionella prevention cycle day
TUESDAY (0=no; 1=yes)
Legionella prevention cycle day
WEDNESDAY (0=no; 1=yes)
Legionella prevention cycle day
ThURSDAY (0=no; 1=yes)
Legionella prevention cycle day
FRIDAY (0=no; 1=yes)
Legionella prevention cycle day
SATURDAY (0=no; 1=yes)
Legionella prevention cycle day
SUNDAY (0=no; 1=yes)
Legionella prevention cycle time
Enable Legionella prevention
function
0 = Not enabled
1 = Enabled
Maximum Legionella prevention
function duration
U I A
Domestic hot water
electric heater
t
Menu Parameter Value to be UOM
no. set
Mn02 0202 3
Mn02 0223 1
Mn02 0211 Example
65°C
Mn02 0213 0
Mn02 0214 0
Mn02 0215 Example 1
Mn02 0216 0
Mn02 0218 0
Mn02 0219 0
Mn02 0220 0
Mn02 0221 02
Mn02 0222 1
Mn02 0225 20
°C
h
min.