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EG
How to use and set the electrical heater elements
To set the electrical heaters’ con guration, once Emix is ON and active, you have to keep pressed the black button up
to the lighting up of the blue LED.
Emix does not have any electrical heater element inside but it can drive and manage external electrical heater element
normally located inside the water tank you will use or the electrical water heater that you will use as a tank.
Emix can drive up to three electrical elements with max. 1,5 kW per element, in different mode of operations as backup
heater, booster… Following a description of the different mode of operations:
1. Booster mode: if the water temperature in the tank is constantly lower than the desired temperature for a value
higher than 10°C for a period of 90’, the rst electrical element is switched on and then step by step all the others
if the condition does not change (one every 90’); when set point is reached all the electrical elements are switched
off. This mode is not active by default con guration and the end user can choose to enable or disable this mode
simply by pressing the push black button more than 4” up to the blue LED is switched on (to disable do the same,
starting from blue led active).
2. Antifreeze mode: if the water inside the tank is lower than 10°C, all the connected electrical heater elements are
switched on up to the temperature of the water reaches 10°C. This mode is a safety mode and cannot be disabled
but if the electrical heater elements are not connected, the source of energy will be only the heat pump.
3. Cold draft prevention: this mode is used to ensure the comfort of people living inside the room and cannot be disa-
bled; however if the electrical heater elements are not connected, the source of energy will be only the heat pump.
4. Legionella cycle: if the water temperature inside the tank is constantly lower than 60°C for a period of 72 hours, the
Legionella cycle is activated and connected electrical heater elements are switched on, in the same way as booster
mode, and remains active for 30’ in order to reach 60°C or more - this is an automatic mode and can’t be disabled
by the user (it is indicated by the lighting up of the yellow LED).
5. Electric water heater: if the outdoor unit is stopped for maintenance of end user’s decision, the Emix unit
could be used as controller of the electrical heater elements located inside the tank, exactly like any electric water
heater. In this case, if the water temperature is lower than the desired temperature for more than 30’, all the con-
nected electrical heaters will switch ON up to the reaching of the setpoint.
NOTE: the legionella cycle is fundamental for the health and if the iSeries system is running, normally it is done just by
the thermodynamic energy; however we cannot exclude that in some cases the energy of electrical heater elements
located inside the tank are needed and this is the reason because we warmly suggest to connect at least one element.
However our company is not responsible if during the installation any electric heater element is connected to the Emix
unit.
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