Katherm HK
Assembly, installation and operating instructions
61
9 Operation
9.1 Operation of electromechanical control
Fig.16: Room thermostat, type 30155
Room thermostat, type 30155
Electronic room thermostat with 3-stage automatic function for 2- and 4-
pipe applications, surface-mounted wall installation on a flush-mounted box
in visually unobtrusive design
simple operation using a large rotary dial for temperature setting with
mechanical range limitation of the temperature setpoint, operating mode
selector switch, Standby, Manual fan, Automatic fan, 3-stage switch for pre-
selecting the fan speed when the operating mode selector switch is in the
“Manual fan” position
option for external room sensor connection
control input for heating/cooling changeover with 2-pipe applications
digital input can be set to Comfort/ECO or ON/OFF switchover
For use with Katherm HK, max. 4 units.
Fig.17: Clock thermostat, type 30456
Clock thermostat 24 V, type 30456
Electronic clock thermostat for 2- and 4-pipe applications, surface-mounted
wall installation on a flush-mounted box in visually unobtrusive design
operation using 4 sensor keys
timer with automatic summer/winter switch-over
option for external room sensor connection
control input for heating/cooling changeover with 2-pipe applications
digital input can be set to Comfort/ECO or ON/OFF switchover
for use with Katherm HK and HK E, max. 5 units
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