emmeti EQ 2021 Manual De Instalacion Y Uso página 59

6. USE OF THE ECO HOT WATER
Activation of the solar circulator (model EQ 3021 ES)
In HEATING and ECO-HEATING operation, when the STT temperature
exceeds BTT by 5 °C (n03), the solar circulator starts to operate.
It will then stop in the following cases:
• STT< BTT+2°C
• STT<20°C
• BTT>70°C (n10)
NOTE: The operation of the solar circulator must be enabled by setting
Par. /01=2
Operation of the fan to replace the air.
Fan icon types
1 - Fan is running .
Indicates that the fan is operating at high speed.
2 - Fan is running .
Indicates that the fan is operating at low speed (function not available).
3 - If you do not see the fan icon, it means that it is switched off.
4 - Fan is not running .
Indicates that the fan will operate at high speed when the value set
for the hot water output is reached.
5 - Fan is not running .
Indicates that the fan is operating at low speed when the value set for
the hot water output is reached.
TEMP
With the unit in any mode of operation and also in OFF, you can set the
operation of the fan after the unit has reached the set value.
Always press and hold the key, after about 2 seconds the
will appear that relates to the ventilation mode at low speed (function
not available).
Continue to press the key, after about 2 seconds the
pears that means that refers to high speed ventilaton.
Continuing to press and hold the
ventilation icon disappears and therefore as the relevant set value of the
temperature of the outflow water has been reached, the ventilator will
remain off.
Ventilation modes
icon
icon ap-
key, after another 2 seconds the
Heat treatment hot water
(domestic hot water to inhibit and / or limit the proliferation of Legionella
in the accumulation)
The function Heat treatment hot water is disabled by default.
To turn on the Heat treatment hot water function.
Contact the service center Emmeti.
Defrost function
The defrost function is managed automatically.
It is also possible to activate defrost manually.
With the unit switched off (OFF), press the
which the defrost function starts. The procedure lasts a few minutes and
stops automatically.
Protection against overheating
The Eco Hot Water is protected against overheating preventing danger-
ous situations from occurring due to high temperatures inside the accu-
mulator should the electronic system malfunction.
When the temperature inside the accumulator reaches a value, manual
overheating protection is activated (MTS intervenes at about 85 °C) and
this interrupts the power supply to the unit which turns off.
A technician will then be required to restore normal operation of the unit
who will also need to reset the MTS protection by pressing the red key
for manual rearmament whilst also ensuring the correct operation of the
unit.
Protection against overheating is found behind the frontal panel.
When the temperature reading of the BTT sensor is equal to or greater
than 70° C, the solar pump will not be activated.
The VS valve for optional thermal discharge intervenes when the tem-
perature of the TTT sensor reaches 78°C and is deactivated when the
temperature reduces to 63°C.
Low air flow alarm output
In case of alarm E10, the voltage output (230V~ Max 2A) of terminals 1
and 2 is powered, to which an external signaling light can be connected.
NOTE: E10 alarm signaling is active only if Par. /01=5.
EN EN
key for 10 seconds after
WARNING!
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