4. ON: when in defrosting (only if the parameter 20 is set to 1=on) or disinfection;
OFF: when exit defrosting or disinfection.
If the tank water setting temperature TS1 (parameter 0) is set to a temperature higher than 60°C, it's recommended
to increase the parameter 1 (see Paragraph ¡Error! No se encuentra el origen de la referencia.) of the same number of
degrees equal to the difference of TS1‐60°C. Example: if TS1 is set to 63°C, the parameter 1 must be set to 8°C.
E‐heater turned ON or OFF condition 2:
(when the unit is turned on, and the E‐heater button on the control panel has been turned on manually)
1. ON: compressor runtime exceeds the E‐heater delay time (parameter 3), and the upper tank water temperature T3 ≤ TS1‐
3°C;
OFF: upper tank water temperature T3 ≥ TS1+1°C.
E‐heater turned ON or OFF condition 3:
(when the unit is turned off)
1. ON: if the E‐heater button on the control panel has been turned on manually when the unit is at OFF status, the E‐heater
will work until the tank water T3 reaches the setting temperature TS2;
OFF: the E‐heater button on the control panel has been turned off manually or the tank water T3 reaches the setting
temperature TS2.
2. ON: lower tank water temperature T2 ≤ 5°C (tank water frozen protection);
OFF: lower tank water temperature T2 ≥ 10°C or the unit is turned on.
1.4.7 ON/OFF contact
When ON/OFF contact is closed, and the controller is ON, the unit can work and the running mode is decided by the setting of the
controller.
When ON/OFF contact is closed, but the controller is OFF, the unit can't work.
When ON/OFF contact is opened, but the controller is ON, the unit can't work (with the exception of external pump).
If the controller is ON, and the ON/OFF status is changed from opened to closed, the unit will work by the previous settings of the
controller (auto‐restart).
If the unit was previously in stand‐by, in case the ON/OFF status is changed from opened to closed, the unit remains in stand‐by.
A signal/warning in case of remote OFF signal (opened contact) is displayed. In such a way the customer can understand why the
unit is not working.
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