77
KaCool D AF –
Comfortable feeling of well-being, thanks to AtmosFeel
3.25
Chilled water air conditioning system
Installation and operating instructions
6.15.3 Heating/cooling changeover via clip-on sensor in 2-pipe systems
6.15.3.1 Setting DIP switch no. 3, DIP switch no. 4
The changeover between heating and cooling is performed as standard in
2-pipe systems via an external contact and the digital input DI2.
If there is no external contact to change over between heating and cooling,
the changeover can be made via a clip-on sensor.
Order the clip-on sensor separately and, after installation, wire it to the
analogue input AI2 of the KathermBoard (as per the wiring diagram). The
configuration is documented in the following description.
If the changeover between heating and cooling is performed by a clip-on
sensor, then the DIP switches must be set to
DIP switch no. 3 = ON
DIP switch no. 4 = OFF.
The functions of the DIP switches are described in Section 6.13 “Adjusting
the unit configuration using DIP switches”.
The slave units in one control zone have to be fitted with a
clip-on sensor to provide the function of “Heating/Cooling
changeover using a clip-on sensor”.
The installation of a 3-way valve is recommended when using a
clip-on sensor for heating/cooling changeover.
Содержание KaCool D AF
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