Cetetherm AquaEfficiency
Installation, service and operating instruction
40
11.10 Safety Function
This function activates the pumps' power relays at the same time without considering ipsothermic contacts'
inputs.
NOTE:
This function can be enabled from end user level.
Parameter
Factory Default Setting Optional Setting
SAFETY_Speed
75%
0-100%=0-10V signal sent to the pumps
SAFETY FCT
Off
Off/On
In case of high temperature alarm on S1, the primary pumps are stopped, even if the function is
activated.
11.11 Eco-Booster Function
One or both functions can be activated at the same time.
ECO:
When control valve is sufficiently closed (Valve Hysteresis) during a sufficient long time (ECO delay),
primary pump switches off and primary mixing valve close down.
The system is switc
h ON when S1 temperature has gone down more than the set value of ”Eco Hysteresis”
If secondary pumps are connected (SS/DS/DD series) they are still in operation during the Eco function.
Booster:
NOTE
: This function require a second primary pump.
If the DHW temperature is dropping faster than "Booster Gradiant", the second primary pump is activated, to
increase the primary flow rate.
When the DHW temperature is back to the setpoint value again, the function wait the time set in ”Booster
Delay” before it stops the second primary pump.
Parameter
Factory Default
Setting
Optional setting
Description
10:- 1:E 2:B
3:E+B
0
0/1/2/3
0 = No function
1 = Eco Function only
2 = Booster function only
3 = Accumulated two functions
Fct_Selection
Normal
Normal/Eco/Boost/
EcoBoost
Playback function selected in
Normal/Eco/Booster/ECOBoost
Eco Delay
5 min
1-30 min
Time setting of the ECO function
“sufficient long time”
Eco Hysteresis
5°C
1-20°C
Temperature range in which the function is
applicable
Valve Hysteresis.
10%
0-80%
Maximum opening of the valve before
switching function
Booster Delay
2 sec
2-200 sec
Time delay between the Booster functions
stops and the second pump stops
Booster Gradient
2°C/s
1 à 20°C/sec
Minimum temperature fall speed at which
the function operates
