K Series
Modulating gas fired unit heaters with low NOx emissions
The digital chronothermostat, supplied as standard with K Types gas fired heaters, offers a series of important control functions, resulting in a more precise and economical use of the installation.
With a simple connection via a shielded dual-conductor cable, it is possible to control the electronic circuit board of each gas unit heater to obtain the following functions:
• programmable timer for three separate temperature levels (comfort, reduced or freeze protection);
• winter operation in three selectable modes:
- automatic: the heater adjusts the heating output and air flow rate to suit indoor temperature;
- manual: the heater operates at one of 3 levels of heating output, which can be set manually;
- anti-frost: the heater prevents the indoor temperature from falling below the freeze protection level set;
• summer operation (ventilation only) with manual selection of ventilation speed;
• operational and fault diagnostics, with warning signals and alarm reset. In addition, if more than one heater is installed in the same indoor space, it is possible to centralize the operation of all heaters, thus keeping unchanged the functions provided by the supplied chronothermostat.
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