TECE SH-HCM Guía De Usuario página 15

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The DIP switch on the SH-CD controllers allows to select the device in charge of the H&C mode (Master H&C device).
The time before H&C switch is defined by the DIP2 (See 3.3):
• DIP2 = OFF: 5 minutes
• DIP2 = ON: 2 seconds
4.3 Pump Output
There are 2 outputs:
• Live contact output (230 Vac).
• Free contact output.
These outputs can be used to trigger:
• A zone valve.
• A pump.
• A boiler or heat pump.
The 2 outputs are triggered when there are a heating or cooling demand, which is sent by
the SH-CD controller to the SH-HCM.
The pump signal is always global, i.e. the pump is triggered when there is a heating or cooling demand within the system.
If a RF failure occurs, the pump is triggered all the time.
4.4 Humidity detection input
When DIP1= ON (See 3.3) the product manages a humidity detection input, with 2 possible types of
signal depending on DIP4 (See 3.3):
• Water temperature sensor (NTC 10 kΩ): Require SH-DTH thermostat.
• A humidity contact sensor.
Humidity contact sensor
Format of the signal:The input is a free contact.
No Humidity
Humidity detected
When humidity is detected by the sensor, the information is sent to the SH-CD controller which manages the information.
Moreover the dehumidifier output is triggered.
Water temperature sensor
The water temperature measurement is sent to all SH-CD controllers to compute the dew point for humidity control in
cooling mode (Please refer to the leaflet of SH-CD)
4.5 Dehumidifier output
When DIP1 = ON (See 3.3), the dehumidifier output (Free contact) is triggered in 2 cases:
• When the Humidity input is triggered (See 4.4).
• When the SH-CD controller orders the dehumidifier.
Opened contact
Closed contact
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