15
EN-102B_f.1296
Outside temperature sensor (TZEW)
The sensor should be mounted in a shaded place, on the north or north-west siede of the
building's facade, away from windows and vents. The connection cable of the temperature
sensor should be as short as possible, it should not be placed in close proximity to the
power cords and twisted around other cords.
Function input 1 (FN1 input)
Opening the input causes the device heating to be blocked. The input is active in winter
mode.
Function input (FN2 input)
Forcing the cooling demand externally. The input is active in summer mode. A short
circuit causes the unit to run in cooling mode as per set parameters.
In order to protect the hydraulic system against condensation, an HP.HS.24 humidity
sensor / switch can be connected to the circuit.