evenes Gelbi D 4.2, Operating Manual And Assembly

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7.2 LEGIONELLA settings
LEGIONELLA function is used to disinfect the tank. In the service menu the user can configure
individual parameters of this function.
7.2.1 LEGIONELLA function temp.
The function allows to define the set-point temperature of disinfection.
7.2.2 LEGIONELLA function day
Select the day of the week on which the Legionella function will be executed.
7.2.3 LEGIONELLA function start hours
Set the start time for Legionella function.
7.2.4 LEGIONELLA function duration
This function allows setting the duration of the disinfection (in minutes) in which the set-point
temperature of disinfection stays at a constant level.
7.2.5 LEGIONELLA function max. duration
It is the maximum total disinfection time (LEGIONELLA function) from the moment of switching on
(regardless of the temperature during switching on). If the tank does not reach the preset
disinfection temperature or does not maintain the preset temperature for the duration of the
LEGIONELLA function, the controller will return to the basic operation mode after the time set in the
LEGIONELLA function max. duration .
7.3 Defrosting
The defrosting process involves switching on the compressor, circulating pump and shifting the
defrost valve. The defrost mode continues until the evaporator reaches the desired temperature.
7.3.1 Manual defrost
Activation of the manual defrost function. This function should be used in case of emergency (strong
evaporator frosting). The controller will allow the defrost function to be activated when the
evaporator and external temperatures are lower than the values set in the defrost parameters.
7.3.2 Defrost supervision
Activation of the low pressure control over the defrost.
7.3.3 Evaporator temp
The controller will start defrosting automatically when the evaporator temperature is lower than the
set value.
7.3.4 Evaporator end temp.
The controller will end defrosting when the temperature on the evaporator reaches the set value.
7.3.5 Outside temp.
The controller will start defrosting when the external temperature is lower than the set value.
7.3.6 Defrost max. time
Defrosting is limited in time. If the evaporator cannot be effectively defrosted after this time, the
heat pump goes through a 10-minute preheating cycle, followed by a defrosting process again. After
3 unsuccessful defrost attempts, a defrost error message is displayed and the heat pump is blocked.
All protection functions remain active. The heat pump resets when the power is disconnected.