10
Temperature sensors
The connection cable of the temperature sensor should be as short as possible, it should
not be route it in close proximity to the power cords and do not twist around other cords.
The DHW cylinder temperature sensor can be optionally replaced thermostat, to do this
switch the input type Tcyl [CONFIGURATION> DHW TEMPERATURE> REGULATION>
OUTSIDE] and connect the NO contacts of the thermostat to the Tcyl terminals.
Master appliance (entry MA)
In order to limit the power used, i.e. the boiler can cooperate with other appliances such
as an electric water heater. In order to do so, an electrician should install in line an extra
open contact to the MA entry (voltage free entry), so that when a master appliance gets
on, the contact opens, and the boiler switches off- it results in heating blockage and
pump’s standstill.
External adjustment of selected room temperature (inlet FN)
Closing FN contact shifts boiler’s work to the mode of maintaining the temperature
previously set in the conguration menu [CONFIGURATION> ENTRY FN].
RT - room temperature regulator
Optional controlling the boiler operation depending on the room temperature. RT entry should
be activated [CONFIGURATION> ROOM TEMP.> TEMP. SENSOR> RT] - then opening
the voltage free contact will result in the switch off heating up the CH.
Three-way valve control (TWV entry)
Switching the boiler operation to central heating or heating water in the coil of DHW
cylinder is carried out using a three-way dividing valve with an actuator. Depending on
the model used, the device should be connected as shown on the diagrams, page no. 8
and the manual of valve and servomotor. Note: In case of activation DHW cylinder you
should follow Service / Conguration - cylinder. Valves can be purchased in
KOSPEL.
