Centrometal PelTec Series Technical Instructions page 71

Freeze guard, suction system
5.8. FREEZE GUARD - avaible from software version "v2.85"
This option is used to enable or disable Freeze guard option and to set its options. Freeze guard option can
work with or without outdoor sensor.
Freeze guard
Factory: OFF / Options: OFF / ON
Possibility to disable or enable Freeze guard option
Toutside
Factory: ON / Options: OFF / ON
Possibility to enable or disable oudoor sensor (can be changed only in the Installation menu (PIN))
Option
Factory: nothing selected / Options: Boiler, Direct circuit 1, Direct circuit 2, DHW, Circuits 1-8 (Cm2K)
Enabling/disabling monitoring of sensor temperatures of system items. Possible selection depends of the set
configuration and installed addtional equipment. If set conditions in Freeze guard/Temperatures menu are
met, Freeze guard option will be activated for selected system items.
Temperature
Tsensor_min: factory: 5°C / minimum: 3°C / maximum: 10°C
Setting the sensor temperature at which Freeze guard will be activated for selected system items (can be
changed only in the Installation menu (PIN)).
dTsensor_min: factory: 5°C / minimum: 2°C / maximum: 15°C
Setting the temperature difference after which Freeze guard option will be deactivated (can be changed only
in Installation menu (PIN)).
Toutside_min: factory: 0°C / minimum: -5°C / maximum: 5°C
Setting the outdoor temperature at which Freeze guard option will be activated.
Technical instructions REGULATION PelTec / PelTec-lambda 71