Cetetherm AquaEfficiency
Installation, service and operating instruction
43
11.15 230V Triac menu
Accessing the Triac-menu requires login at Technician level.
Choose between one of two different operating modes.
NOTE:
both modes cannot be combined.
•
Pulse(s) function
Clock pulse, using time program. Pulse duration settable.
Set Multi P= On and ByPass S4S3= Off
•
ByPass function
Energise a bypass component if delta T (S4-S3)>the set value Delta T Bypass.
“Multi P”: Off and “ByPass S4S3”:On
Parameter
Factory Default
Setting
Optional setting
Description
Multi P
Off
Off / On
Clock program
Pulse(s) function
Pulse Duration
5 sec
1-3600
230V pulse duration in seconds
Bypass 0=Off 1= ON
Off
Off / On
Disable (0) or Enable (1) the bypass
function
DeltaT Bypass
30°C
5-50°C
ByPass Function
11.15.1 Pulse function
The 230V electrical output can be configured as a pulse
function. For example it can be used to shortly activate an
electrical drain valve.
In this configuration, the pulse duration can be programed
to be active a day, week or a special day
For example each Sunday at 10h00 for 5 seconds.
Connected device must not exceed 230VAC 1A.
11.15.2 ByPass function
Some condensing boilers do not accept too low return temperatures or too high primary inlet temperatures
differentials.
AquaEfficiency return temperature can be around 25°C at minimum (especially during peak taping period).
If the primary inlet temperature is 70°C, that makes a Delta T=45°C.
There are two solutions to heat up the primary return temperature if delta T is too high, considering the boiler:
The “230V Triac Menu” must be configured, set parameter “BypassS4S3” to ON.
In operating mode, if Delta T (S4-
S3) is higher than the parameter “DeltaT Bypass” the triac output is energized
to give 230V between N and DO9 terminal, to pilot the by-pass component.
1. Install a mixing bottle before the AquaEfficiency primary circuit.
Use a transfer pump between the boiler and the bottle
NOTE
: The pumps flowrate must be higher than the AquaEfficiency nominal flowrate.
The pump is used to mix some of the primary inlet with the primary return, to increase the return
temperature.
2. Install a by-pass before the unit with an electrical 230V normally closed shutting component, e.g :
•
electro valve 230V NC or
•
small pump 230V 1A max or
•
2 port valve 230V 3-steps signal with return to zero position, in case of no power supply.
An extra sensor S4, on the primary inlet, must be added, see
18.9 Change or add an extra sensor
