37
13.3
CH and HW SERVICE SETTINGS
CH and HUW settings
CH activation temperature
Parameters determines the temperature at which CH boiler pump is
activated. It protects the boiler against watering due to cooling off with
cold water returning from installation. Attention: Deactivating boiler pump
only does not guarantee boiler protection against watering and
consequently corrosion. Additional automatics should be used, i.e. 4 way
valve or 3 way thermostatic valve.
CH stand loading pause when HW l*
Available after connecting HW sensor. Prolonged feeding of HW silo
during priority HW deactivated may cause to overcooling of the CH
installation, because CH pump is deactivated. Parameter CH pump
pause during feeding HW prevents against periodical activating CH
pump during feeding HW silo. CH pump after this time will activate on
constant, programmed time of 30s.
Min. HUW temp. *
Available after CH sensor connecting. It is a parameter by which it can
be reduced setting too low preset HW temperature.
Max .HUW. temp. *
Available after connecting HW sensor. Parameter determines to what
maximum temperature HW silo will be heated during cooling the boiler in
alarm situations. It is a very important parameter, because setting too
high value of it may cause risk of scalding with HW. Too low value of
parameter will cause that during boiler overheating it will not be possible
to cool off the boiler to the HW silo. During design of HW installation, it is
necessary to take into account risk of damaging the controller. Due to
breakdown of the controller water in the silo can heat up to dangerous
temperature. It is necessary to use additional protection in the form of
thermostatic valves.
Boiler Increase byHUW and Mixer
Parameter determines how high the boiler temperature will be increased
to load HW silo, buffer and mixer cycle. Temperature increase is only
realizing when it is necessary. When preset boiler temperature is at
sufficient level then controller will not change it due to the fact of feeding
the HW silo, buffer or mixer cycle. Increasing preset boiler temperature
during feeding HW silo is signaled with letter “C” in main window of
displayer
HUW operation extension*
Available after connecting HW sensor. After feeding HW silo and
deactivating HW pump may be a risk of boiler overheating. It happens in
case when preset HW temperature was higher than boiler preset
temperature. This issue is exceptionally important in HW pump operation
in SUMMER mode, when pump is deactivated. To cool off the boiler HW
pump operation can be prolonged by
HW operation time prolongation
.
Circulation standstill time
Parameters available after connecting additional module MX.03. Pausing
time between periods of circulation pump operation is defined with value
of parameter
Circulation stop time
(recommended setting 15-40 min.)
Circular pump operates constantly during
circulation operation time
.
(recommended setting 60-120s)
Circulation operation time
Exchanger*
Parameter available after activating option Show advanced setup =
YES. It only refers to hydraulic installation with heat exchanger
between open and closed circuit, point 12.2. Available options:
YES (boiler pump operates constantly in short circuit boiler
–
exchanger, it is not excluded i.e. from SUMMER function or HW
priority)
NO (pump operates normally)
Summary of Contents for ecoMAX850P1-R
Page 2: ......
Page 4: ......
Page 7: ...USER MANUAL OF THE CONTROLLER ecoMAX850P1 R...
Page 18: ......
Page 19: ...19 USER MANUAL OF CONTROLLER INSTALLATION AND SERVICE SETTINGS ecoMAX850P1 R...
Page 45: ......
Page 46: ......
Page 47: ......