Handling the heating installation
Circulation pump WILO
MSL
12/5
OEM
7
The symbol of the container under pressure
- is switched on on the command of the room thermostat.
- the room thermostat also switches off the heaters and
the pump when it reads the temperature which is set
in the room.
If the room thermostat does not switch on the
pump for some reason, the heaters will not
switch on as well
. The error message will
appear on the display.
- If the boiler has reached the set water temperature in the
system, the heaters will be switched off and the pump will
continue to work for an additional 2 minutes.
8
Pressure in the system (possible display from 0 to 3.6 bar with one
decimal)
9
Symbol of measuring unit of pressure(bar)
10
Symbol of electricity
11
Current power of the boiler in kW (display with one decimal)
12
The set power of the boiler in kW (displayed with one
decimal)
13
Symbol of measuring unit of electricity (kW)
15
Symbol of the circulation pump (appears only when the pump is
switched on )
Freezing protection regime:
-
Pump is always switched on
16
Symbol of space that is heated (house)
17
Symbol of switched on room thermostat
-
The power of the boiler is 1/3 of the nominal power and
cannot be changed.
-
Operating temperature is fixed to 10
°C and cannot
be
changed
.
- Sobni termostat nema uticaj na rad kotla.
18
Warning symbols (A0-A4) or error symbols (E0-E6)
19
Symbol of danger (appears when the value of pressure or
temperature exceeds the permitted limits)
7.2.5
Warning symbols
(codes)
7.2.4
Symbols that may appear on display
A1
- warning: Approaching the lower limit of the allowed
operating pressure (0.8 bar)
A2- warning: Approaching the upper limit of the allowed
pressure
(2.2 bar)
A3- warning: Approaching the lower limit of the allowed
temperature
(5
°C)
A4- warning: Approaching the upper limit of the allowed
temperature
(80
°C)
7.2.6
Error symbols
(codes)
E0- error: The set parameters are not with8in the limits
(this situation is practically impossible if the
eeprom is not empty and the boiler is switched on for the first time)
E1- error: Pressure value below the lower limit (0.4 bar) ALL SWITCHED OFF
E2- error: Pressure value above the upper limit
(2.6 bar) ALL
SWITCHED OFF
E3- error: Temperature value of the boiler equal or bellow the
lower
limit (3
°C) ALL SWITCHED OFF
E4-error: Temprature value of the boiler equal or above the
upper
limit (85
°C) ALL SWITCHED OFF
E5- error: Temperature value of the boiler equal or bellow the lower limit (3
°C)
INFORMATIVE
E6- error: Temperature sensor of the boiler in break or in short
circuit ALL SWITCHED OFF
E7- error: Temperature sensor of the boiler in break or in short
circuit ALL SWITCHED OFF
E8- error: Sensor of the pressure in break or in short circuit
ALL SWITCHED OFF
Image number 11 and
12
Symbols on the display
1
Time
2
Date
3
Symbol of radiator (temperature of the system) or symbol of the boiler
4
Current temperature of the system (possible display from -
99 to 99 °C)
5
The set temperature of the system (possible display
from 10 to 80 °C)
6
Symbol of measuring unit of temperature (
°C)
