Honeywell Home AQ1000TN2 Guide De L'utilisateur page 13

Minimum Setpoint Temperature
This parameter is the minimum temperature at which the
thermostat can be set.
Maximum Setpoint Temperature
This parameter is the maximum temperature at which the
thermostat can be set.
Freeze Protection Temperature
This parameter is used to prevent frozen pipes inside the room
where the thermostat is located. When the Freeze Protection
mode is activated by the hydronic zoning controller, the
thermostat is placed at the Freeze Protection temperature.
M38495
13 69-2005EF—02