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6. Functions of the heat recovery system
The heat recovery unit works in certain modes and functions whose activation and start is accompanied by lighting up of
the respective symbol. The following functions of the heat recovery unit are distinguished:
Boost (forced ventilation)
A top power (5) function used if fast, forced ventilation of the indoor premises is required. The unit is temporarily switched to the
maximum level, the fans working at the top power. This function is available in any mode except the Off mode. It can be activa-
ted from the cloud (for any time), from the LCD control (for a preset value) or with a button connected to the unit (two preset
values for short and long pressing). From the application, short pressing activates the Boost function for a shorter preset time;
after longer pressing, user time selection options are displayed. If Boost is active, the time remaining until the expiration of this
function is displayed next to the respective symbol. After expiration of the given time, the unit will return to the previous mode.
Night Mode
A reduced power function used at night. The unit is switched to the minimum level (1), the fans working at the lowest power
setting. After expiration of the given time, the unit will return to the previous mode.
Holiday
A reduced power function used in periods of absence of the users of the premises. The unit is switched to the minimum level (1), the
fans working at the lowest power setting. On activation of this function, the user sets the return day and time (dd.mm.yy hh:mm).
Party
An increased power function used mainly when a higher number of persons are present on the indoor premises. The unit
works at the 4th power setting. After expiration of the set time the unit will return to the previous mode.
Circulation
A function used if it is necessary to prevent flowing of outdoor air into the indoor space. The indoor air is circulated.
On setting this function, the user sets the duration of this function.
Overpressure
A function designed for simultaneous use with a fireplace and only available from the MyJABLOTRON application. The unit
changes the ratio of the fan speeds for the aspirated and exhausted air. The fan exhausting air from the indoor space works
at a lower power than the fan that supplies air. This prevents combustion products and smoke from getting into the interior.
Functions Duration Increment Default value
Boost
5 min – 2 h 5 min set value
Overpressure
5 min – 2 h 5 min 30 min
Night Mode 15 min – 15 h 15 min 8 h
Holiday
1 day – 1 month 1 h 7 days
Party 15 min – 8 h 15 min 2 h
Circulation
15 min – 2 h 15 min 1 h
Tab. 4 – Time characteristic of the functions of the heat recovery unit
Heating
The heat recovery unit can heat the supplied fresh air by means of an internal heater. The heater output is controlled based
on temperature of exhaust air. This feature can be turned on or off from a mobile application.
Comfort heating
When the heating is switched on, the temperature of the supplied air is heated to the same temperature as the exhaust
air with the internal heater.