Messana Logic Daemon Release Notes

New Digital Output control mode for fan coil electrothermal actuators (open valve on close contact / open valve on open contact).

Hydronic system type differentiated by season. E.g. now it’s possible to configure systems with an hydronic system with mixing valve and buffer tank in cooling and with a direct hydronic system type in heating.

High temp and low temp safety logics improved.

Improved slow cold start logic to avoid stalls in the mixing valve and peaks in the hydronic system supply temperature.

Corrected ATU filters cleaning management logic.

Dehumidification request from fan coil now works again only on cooling mode.

Removed energy request from fan coil fan request thus the related hydronic system pump is not triggered.

Corrected setpoints humidification/dehumidification computation between primary and secondary air system.

Corrected buffer tank temp warning based on ATU water request.

Added buffer tank warning when water temp is not adequate to satisfy ATU requests.

Added fan coil as ventilator for humidification function supplied by ATU.

New Cascade logic for multiple heat pumps with temp growth angle assessment to evaluate when/if adding or removing an energy resource form the cascade.

New Cascade logic for multiple heat pumps shared between two buffe tanks, with temp growth angle assessment.

New diverting valve with 2 contacts handling available.

Custom 2018-191 logic for tailor-made energy resource handling.

Improved digital multispeed and analog fan coil speed computation when there are concurrent calls for both dehumidification and cooling or humidification and heating from a fan coil: the higher speed setting of the two functions shall be used.

Digital output for electric heater now available also for analog fan coil.

Define a speific target temp for dehumidification fan coil function.

Multifunciton fan coil works also on integration mode.

Buffer tank temp warning not shown for HRV request when HRV energy saving is enabled.

Compute the target temp on hydronic systems also when a fan coil is performing only dehumidification function.

Fixed dehumidification flags computation when a system has only dehumidification from fan coils.

Added actuation logic for digital HP fan coil.

Added actuation logic for analog ERV.

Added floor warming logic.

Improved slow cold start logic. Now the logic controls the increase/decrease of the supply temp of a hydronic system with more accuracy.

Improved Bioset logic. Now the room sensor shows the perceived temperature.

Fixed fan coil actuation for ducted fan coil with dumpers. Now the fan coil icon on the Messana App is not active in a zone where there is no active heating/cooling request, with a ducted fan coil satisfying a heating/cooling request from another zone, when the ducted fan coils are paired with dumpers.

Added setback, on and off differentials for domestic hot water systems.

Low temp hydronic system with tank w/o mixing valve management.

Integration suppression logic for systems in season change auto mode: the integration request is satisfied according to the hydronic system season connected to the room sensor.

Modbus heat pump can be activated from domestic hot water request.

Heating mode actuation of hydronic systems from timer.

Added cooling request suppression for ducted fan coils without dumpers where there is an active heating request for the involved room sensors.

Added synchronisation of runtime attributes with database attributes.

Added electric heater icon management for buffer tank.

Added parametrisation by the user for heating and cooling capabilities of radiant zones and possibility to switch off integration feature on fan coils.

New heating/cooling differentials introduced at room sensor level for systems with co-present heating and cooling capabilities available on a room sensor.

New secondary air system handling at room sensor level.

Halt the ATU on p-trap error.

Considerably reduced season change timing.

Improved bioset logic.

Reset schedulation on a room sensor if the schedulation is not valid anymore.

When the manual season mode is selected, thermal requests can be satisfied accordingly with the selected season. Thus opposite thermal mode requests are discarded.

Now the dynamic comfort range is computed also during setback, or out of band schedulation.

Improved hydronic system temperature computation for ATU without compressor.

Read digital input state from modbus RTU master room sensors.

Fixed setback icon for systems made up only fan coils.

Fixed heating recovery ventilation activation for a room sensor if there is a fan coil that provides heating recover ventilation function.

Fixed ventilation function for fan coils.

Bypass schedulation for integration function under set point override.

Fixed air system convective integration under set point override mode.

Fixed anti-legionella algorithm.

Fixed heating recovery ventilation icon activation in the zone page when the room sensor is out of schedule on an heating recovery ventilation activation managed by ATU and not by air quality room sensor.

Added new FCU activation delay feature to properly activate the fan of the FCU with specified water temperature requirements or timing delay.

Exported runtime fan coil state to properly handle the state of the FCU icon.

Added new state for the buffer tank to handle the electric heater activation status on the end user application to represent the proper tank con state.

Added function for FCU management where the unit perform convective integration when is in the same H/C mode of the related zone and thermal function when is in a different H/C mode.

Added function for supply air temperature control on HiDew ATUs.

Solved issue on FCU icon for FCUs without group.

Changed the logic for dehumidification set point in dew point: it is no more related to the relative humidity value.

Fixed error in H/C changeover "Auto" for FCU solo room sensor.

Fixed error in electric hater actuation.

Added management for electric heater in DHW and buffer tank.

The logic of the H/C source has been modified to allow the management of domestic hot water on systems with particular configurations.

Fixed "Auto" H/C changeover for FCU "solo" group.

Fixing convective integration activation in 4-pipes systems.

Fixing heating/cooling mode and speed setting for HiDew RxE units.

Fixing issue on dehumidification icon for RMS when the dehumidification is performed by FCUs.

Fixing actuation of multiple DO for digital single-speed FCUs.

Convective integration management from ATU for zones without randiant terminals.

Fixed Celsisus degree initialization.

Stop of the ATU requests when the related hydronic system is in stand-by for DHW production.

Immediate start of the hydraulic system by request of the ATU only when the Slow cold start logic is active.

The activiation of the ATU is keep even the unit is ini alarm state.

Fixed error in Slow cold start logic when the H/C changever happen during a DHW call.

Management of convective integration under schedule.

Hide "Temperature target not reached" message in DHW system when the temperature is not available.

Add management of ATU LuBa DRS450.

Timer logic activated even with digital output not configurated.

Management of generic expansion Dixell iPro215D.

Removed max speed limit for manual FCU speed setting.

Multi-stage H/C source activation for buffer tanks.

Fixed wrong zone activation that remain on during DHW calls.

Wrtited water supply and return temperature for FCUs in database.

Electric heat management for FCUs.

H/C source always on during Slow cold start logic steps.

Slow cold start logic optimization.

Added general on/off via DI.

Fixed error on room anti-freeze.

Implementation of Slow cold start logic.

Added timers to zones for fire-pit, towel warmers, electrical radiant floor or generic purpose management.

Fixed error on management of diverting valve opening.

Unified log file between the daemon and its libraries.

Fixed error on speed management for FCUs in HRV.

Management of mZone RD/Jaga.

Added Security logic: exclusion from cooling of zones with high dew point level.

Updated Dynamic ΔR logic.

Added double fixed level of target temperature on schedule program for hydronic systems during heating.

Added timers to zones for fire-pit, towel warmers, electrical radiant floor or generic purpose management.

Fixed algorithm for compute target temperature of the H/C sources controlleb by bus.

Fixied bug on the Auto-adaptive comfort.

Setted air flow level for exhaust air extraction function from parameter instead from configuration parameter.

Saved diverting valve postion in the database for digital contolled diverting valves.

Fixed wrong indication of heating/cooling on Sense Magic room sensor (dial version).

Fixed icons management for FCUs without group and hydronic system references.

Added parameters for ATU water supply temperature when only convective integration request, in heating or cooling, is active.

Fixed wrong termination of supply control alarm when supply control logic stops the hydronic system.

Changed the default management of HRV to always on.

Hided the warning when the display is disconnected from HiDew REx ATUs.

Computed Dew point for NewtOhm SND-mTH room sensor.

Fixed issue in HRV function of the fan coil.

Correction of the classification (between errors and warnings) of ATU alarms for their display on the App.

For systems with diverting valves after mixing station, solved missing H/C changeover and wrong thermal actuators activation under certain condition.

Removed "Low temperature alarm" for systems with fan coils only.

Implemented the minimum activation level for FCUs with analog control.

Fixing of incorrect condition of Supply Control Logic termination on hydronic system.

On free cooling: - Off when humidification is on. - Off when one or more zone is calling for heating.

Changed flags management to avoid HRV and free cooling showed at the same time.

DP to RH setpoint management optimization in zones.

Use of set point defined in the air system when the system is set to manage setpoint at air unit level for humidification, dehumidification or iAQ.

Added a warning for using dynamic ΔR.

Fixed error on convective integration icon.

Added control of zone via 3rd party thermostat or via digital input.

The "Dirty filter" message for ATUs turn on yellow icon instead the red one.

The maximum speed parameter is applied even for bus controlled FCUs that works as an analog controlled FCUs (HiDew).

Supply temperature computation in cooling: removed some zone wrongly included in thermal request.

Fixed error on thermal request from zones when the hydronic system is in cooling and the environmental condition require heating or the hydronic system is in heating and the environmental condition require cooling.

Saved of High Humidity Alarm in the database.

Differentiated the color of the icon of the zones between alarms (red) and warnings (yellow).

Fixed errors in the calculation of the target temperature and in the activation of the convective integration related to the new zone activation logic.

New thermal request logic from zones for a better integration of radiant terminals and fan coils.

Removed block of aeraulic request for room sensors linked to hydraulic system turned off.

Added “Sleep Mode” for HiDew REx units.

Added activation of alarm icon in the main page when there is an alarm on a or more FCUs.

Computed dew point value for Vector Ctrl TRI2 sensor.

Add parameter for target temperature compute when only fan coils are running.

Fixed error in acquiring notifications from database about information change.

Computed dew point value for SyxthSense SRI 75 sensor.

ATUs capability set without regard current heating or cooling mode; this allows to show information in ATU page of the App.

Removed "High Temperature" alarm, "Low Temperature" alarm and “Supply control” alarm and warning from High Temperature hydronic systems.

Fixed the bug that does not allow H/C changeover for H/C source when the H/C source is turned on at the time of H/C changeover start.

Management of hydronic system with only fan coils in cooling.

Removed FCUs activation when related ATU perform HRV.

New “on/off logic” for zones.

Evaluated the schedule state in the DHW recirculation even if edthe recirculation temperature isn't present to allow to apply schedule even for request of recirculation by D.I.

Add H/C request to the hydronic system from HiDew REx units when the valve is open.

Logic for heat pumps changeover between 2 buffer tanks.

Masking of Display communication error to avoid alarm indication for HiDew REx with unplugged display.

Fixed error that opens the dumper with ATUs off.

Fixed wrong activation of fan coil inside the comfort range.

Fixed issue on self-adaptive comfort with variable temperature scheduling.

Fixing in fan coil icon visualization for main and zones pages.

Added delay between off of primary H/C source and on of the secondary H/C source in substitution.

Fixing in pump icon visualization for main page.

First release! 🚀