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COELTE.NET
Circulator anti-blocking function.
To avoid circulator blocking due to prolonged inactivity, the control unit has a function based on checking the time
elapsed without starting it . If the circulator does not restart within the days Set in the dab parameter ( 7 days default)
it activates for the Seconds Set in the Sab parameter (anti-blocking Seconds). The function is also active in standby.
If there is a voltage drop, causing the ECU to restart, an anti-lock cycle is carried out because it is not possible to
know how long the power was off.
AGE Antifreeze function
If it is necessary to prevent the heat transfer liquid from reaching temperatures close to freezing, it is possible to
intervene by activating the AGE function (Antifreeze). The function has the task of activating the circulation pump
when the temperature read by probe S1 reaches or is lower than the AGE parameter in the technical menu; the
function can be disabled by setting the AGE parameter to 0.
Factory reset
To reset the control unit to the factory values, it is necessary to reach the RES item in the technical menu, press the
+ key 5 times, the wording ON will appear, at this point press menu. The control unit will display the scrolling wording
"Done" to confirm the operation. Attention: all previously entered data will be cancelled, including wifi association
data.
ALARMS Alarm situations that may occur are the following:
Display with scrolling down text
PROBE 1 OPEN OR NOT CONNECTED
PROBE 2 OPEN OR NOT CONNECTED
PROBE 3 OPEN OR NOT CONNECTED
Management of the PWM circulator
The management of the pwm circulator is regulated by 3 technical parameters:
•SP1 minimum PWM value
SP1 Sets the minimum PWM that can be used during control
•EP1=ON When the control activates the circulator, this will start at the PWM value Set by SP1 , in this condition, for
each further degree of increase in the temperature of the collector respect to the tank, there is a PWM increase of
10%.
Ex: SP1=25% DEL=5°C T.BOILER=50°C
T.Collector 54° = circulator =off
T.Collector 55° = circulator =on PWM=25%
T.Collector 56° = circulator =on PWM=35 %
T.Collector 57° = circulator =on PWM=45%
EP1=OFF When the controller activates the circulator, it will always start at the pwm100% value •CP1 Setting of the
operating curve
CP1= 1 the circulator flow rate increases as the signal decreased PWM read on the output terminals, e.g: pwm=0%
circulator at maximum, pwm=100% circulator off. N.B. to be increases only if circulators designed for application on
heating systems are used. •
CP1= 2 (default) the flow rate of the circulator increases with the increase of the PWM signal read on the output
terminals, eg: pwm=100% circulator at maximum, pwm=0% circulator stopped.
NOTE: The calculated PWM value is always forced to 100% for the first 10 Second s of circulator activation.
Installation
Although not complicated, installation requires to be carried out by qualified technical personnel. Remember that the
device requires a 230-volt mains power supply, therefore there is a risk of electric shock.
Considering that for this product it is necessary to connect to the internet, you need to make sure that the installation
point can be reached by an efficient wi-fi signal level.
First make all the electrical connections, then SELECT the required program and intervene on some adjustments in
the technical menu if necessary and after general testing you can connect to the wi-fi network as described in the
dedicated chapter.
