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Technical features and dimensions
2.1.3
Operating features
• CH electronic flame modulation with timer-controlled rising ramp (30 minutes, adjustable).
• DHW electronic flame modulation (mdoels KC and KR/KRB with optional water heater).
• DHW priority function (model KC and models KR/KRB with optional water heater)
• Flow freeze protection function: ON 5°C; OFF 30°C or after 15 minutes of operation if CH temperature > 5 °C.
• DHW freeze protection function: ON 5°C; OFF 30°C or after 15 minutes of operation if CH temperature > 5 °C.
• Water heater anti-freeze function (KR with optional external water heater with NTC probe): ON 5°C; OFF 10 °C or after 15 minutes of
operation if water heater temperature > 5 °C.
• Timer-controlled flue cleaning function: 15 minutes.
• Anti-legionella function (models KR/KRB with optional water heater).
• CH Maximum heat input parameter adjustment.
• Ignition heat input adjustment parameter.
• Possibility to select the heating range: standard or reduced.
• Ignition flame propagation function.
• CH thermostat timer: 30 minutes (adjustable).
• Heating pump post-circulation function in CH, freeze protection and flue cleaning modes: 30 seconds (adjustable).
• DHW post-circulation function (KC and KR/KRB with optional water heater): 30 seconds.
• Post-circulation function for heating temperature > 78 °C: 30 seconds.
• Post-ventilation function after working: 10 seconds.
• Post-ventilation function for CH temperature >95 °C.
• Circulation pump and deviating valve anti shut-down function: 10 seconds of operation after 24 hours of inactivity (adjustable).
• Anti-water hammer function: can be set from 0 to 10 seconds through parameter P15.
• Ready for connection to an (optional) ambient thermostat.
• Ready for operation with an external probe (optional, supplied by the manufacturer).
• Ready for operation with an ambient probe (optional, supplied by the manufacturer).
• Ready for operation with an OpenTherm remote control (optional, supplied by the manufacturer).
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