24
2
1
5
3.1.2. Boilers rated 40 to 60 kW
Boiler automatic control unit utilizes a microprocessor-controlled PLUM
ecoMAX 200 controller. Its task is to maintain the preset temperature in the
heating circuit and temperature of hot water in hot household water tank.
Fig.12. Control system with ecoMAX 200 controller – front view
Figure 12 describes elements of he control system.
Setting buttons
are used for specifying controller parameters and for selecting displayed
parameters describing the operating status of the boiler control system. For
detailed information on basic parameters, key functions, parameter setting
methods, etc. see the
ecoMAX 200
controller operating instructions delivered
with the boiler. On the left side of the panel there is a
(Red) control.
STB Temperature Limiter
prevents excessive water heating in the boiler
If it engages (which happens when temperature exceeds 95°C) blower will be
switched off. This condition is indicated by illuminating the
red control
. In
order to restore the boiler to normal operation, it is necessary to undo the black
nut of the
STB
temperature limiter and press the pushbutton located underneath.
The
thermometer
shows current temperature, also in case of power outage.
1. STB temperature limiter
2. Red control
3. ecoMAX 200 controller panel
4. Display
1
2
5
8
3
6 7
4
5. Settings buttons
6. Power switch
7. Fuse
8. Thermometer
