Bedienungsanleitung Argo Emix Tank (Seite 26 von 29) (Englisch)

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In addition to the already described modes in the section “EMIX TANK CONFIGURATION”, Emix Tank software can auto-

matically manage electrical back up heaters under certain conditions. This mean that these operation modes are not to

be set and that can not be deactivated. They are:

- Antifreeze mode

- Cold draft prevention mode

- Electrical water heater mode (in case heat pump is not active)

- Antilegionella cycle

Electrical back up heater management – Antifreeze mode

If water temperature inside the tank is lower than 5° C, all electrical elements are switched on until the water temperature

reaches 10° C.

Electrical back up heater management – Cold draft prevention mode

When one or more indoor units are in cold draft prevention mode and compressor is operating since 20’, one by one

electrical element are switched on every 20’; they will be switched off one by one when no indoor unit will be any more

in Cold draft prevention mode.

Electrical back up heater management – Electric water heater mode

If the outdoor unit is stopped for maintenance, Emix Tank will control automatically the electrical heater elements located

inside the tank, exactly like any electrical water heater. In this case, if the water temperature is lower than the desired

temperature for more than 10’, all the electrical heaters will switch on up to the reaching of the setpoint. The end user can

switch off Emix Tank if he does not want to utilise this option.

Electrical back up heater management – Antilegionella cycle

During the Antilegionella cycle, one or more electrical heaters may be automatically switched on. See section “ANTILE-

GIONELLA CYCLE”.

OPERATION OF THE ELECTRICAL HEATER ELEMENTS

Legionella is a bacteria that under certain conditions can be present in any water system.

The proliferation of this bacteria depends on many factors and it  nds the best conditions to survive between 20ºC to

45ºC. That’s why, even though each Country has a different local regulation about Legionella prevention, all of them re-

quire to heat water over than 50ºC.

Anti legionella cycle is a special operation mode performed by Emix Tank. The goal of this mode is to heat the water of

the tank. In this way, all bacteria that may have been inside the water would be killed.

The antilegionella cycle is closed when:

• the water temperature is above 65°C, or

• the water temperature is above 50°C for a variable period of time depending on the temperature itself.

If within 72 hours (3 days) none of the above conditions have been satis ed, the cycle is activated.

During the cycle the YELLOW LED lights up.

It is possible that the electrical heaters are activated during anti legionella cycle.

During the cycle, by water temperature trend analysis, if the software understands that there is not enough energy us-

ing only the heat pump, the  rst electrical heater will be switched on automatically. The second electrical heater will be

switched on after 120’ depending on the water temperature trend up to reach the necessary conditions to close the cy-

cle. If there is a  ow switch connected, the cycle time will be reduced according to the amount of fresh water introduced

into the tank.

If after 8 hours none of the above conditions occurred, the cycle will continue, but the YELLOW LED will begin  ashing

with low frequency to alert the end user.

NOTE: The antilegionella cycle is fundamental for the health of people; it is normally completed due to thermodynamic

energy, however, we can not exclude that in unfavorable atmospheric conditions, the heat pump is unable to complete by

itself the cycle. For this reason it is obligatory to use the heater / the heaters. In case you disconnect the electrical heat-

ers, under certain operating conditions, it may happen that the legionella cycle will not be closed, a condition for which

our company does not assume any responsibility.

ANTI-LEGIONELLA CYCLE

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