KIPI eSTER_x40 Series - Mixer Connection; Connecting of Circulation Pump; Connecting of Safety Temperature Limiter

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An example connection of an external alarm signaling: 1
– additional B module, 2 – external alarm, 3 – relay 6
VDC.
12.13 Mixer connection
The mixer servomotor can only be
connected to the terminals of the
additional module B.
During assembly works for mixer
servomotor pay attention not to
overheat the boiler. This may
happen when there is a limited
flow of water from the boiler. It is
recommended to check the
location of valve in maximum
opening before starting work, to
ascertain heat acceptance from
the boiler by opening the valve to
maximum.
The controller cooperates only with
servomotors of mixing valves equipped with
end switchers. Using other servomotors is
forbidden. Servomotors with full circle scope
of 30 to 255 sec. can be used.
Connecting mixer description:
• Connect the additional module B to the
main controller.
• Connect mixer temperature sensor.
• Connect electrical mixer pump.
• Activate the controller and select proper
Mixer support in the menu: Service
settings → Mixer 1 settings
• Set in mixer service settings proper time
of valve opening (time should be written
on data plate of servomotor, i.e. 120
sec.).
• Connect electrical power of the controller
and activate it so the mixer pump is
working.
• Choose the direction in which servomotor
opens and closes. To do so, switch the
button to manual control and find
position in which temperature in mixer
circuit is maximal (in controller it is
position 100% ON) and value position
when temperature of mixer circuit is
minimal (in controller it is position 0%
OFF). Remember the position in order to
later verification of proper connection.
• Disconnect the electrical power to the
controller.
• Connect electrical power to mixer
servomotor with the controller and value
servomotor producer’s documentation.
Do not confuse opening direction with
closing direction.
• Connect electrical power to the controller
and switch it into “Stand-by” mode.
• Check if wires for mixer opening and
closing are not swapped. Go into menu:
Manual control and open mixer by
selecting Mixer 1 Opening = ON. By
opening servomotor temperature on the
mixer sensor should increase. If not,
disconnect the power and swap wires.
(attention: another cause may be
incorrectly connected valve – check the
producer’s documentation if it is properly
connected).
• Set other parameters of the mixer.
12.14 Connecting of circulation pump
The circulation pump can only be connected
after purchasing the additional module B.
12.15 Connecting of safety temperature
limiter
The external safety temperature limiter can
only be connected in the STB controller
version. The STB version has a built-in safety
temperature limiter. If the controller is not
factory equipped with a safety temperature
limiter, it should be connected to terminals
1-2 of the controller as an external device.
The STB must have nominal
operating voltage of at least 230
VAC, and have the applicable
certifications.
In the version of the controller with STB,
after exceeding the boiler water temperature
above 95°C, the feeder and fan power supply
is cut off. Restarting fan and feeder power
supply requires resetting the STB limiter. To
do this, press the reset button (1). The
B