SERVICE MENU: “FLOW DIRECTION”
Make settings if the supply air and extract air are connected on the right or left hand.
If HERU
®
T has a cooker hood connection the flow direction should not be changed.
NB! If HERU
®
is fitted with built-in electrical heater, it must also be moved. See page 77.
Press again and then in order to choose Left or Right.
SERVICE MENU: “FREEZE PROTECTION”
Setting of limit value when freeze protection sensor is installed. The sensor (GT5) is installed at the return pipe
on the heating coil. When 3°C higher than set point the valve opens completely. If the temperature continues
to fall to set point the unit will stop, but the valve remains open and the pump output remains active.
Press again and then in order to choose Limit: (5°C-10°C).
Press again and then in order to choose 'InOutDiff': (1°C-10°C), Extract HI: (19°C-26°C)
and Extract LO: (18°C-24°C).
SERVICE MENU: “SUMMER COOLING”
If ”Summer Cooling” ”On” is chosen, the Summer cooling is activated when the extract air temperature is
higher than ”Extract HI” (19°C-26°C) and outside air is colder than ”Extract - ‘In OutDiff’ (1°C-10°C
difference between the temperature outside and extract air)".
Summer cooling is deactivated when exhaust air temperature is lower than ”Extract LO” (18°C-24°C)
or when the outside temperature is warmer than "Extract air - 'InOutDiff + 1,0ºC' ".
If Summer Cooling is activated, water cooling is disabled.
Press again and then in order to choose On or Off. In order to go forward in “Summer Cooling” press .
Cont.
Cont. next line.
72
5
5
5
5
Regulation mode
Modbus
Extract
Extract
Extract
Extract
Extract
Extract
Extract
Extract
Modbus
Summer cooling
Sensor calibration
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