1. Wiring Please refer to wiring diagram for details a. Bus Communication between CH536 and THS04 is done by Modbus on RS485. On CH536 a bus is dedicated to that communication: J9 FBus1 This is based on three wires: plus...
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2. Display Figure 3 Display is splitted in different areas, providing information about: 1. Unit mode (Heat, Cool, Auto). We can have combination of symbols Auto+Cool or Auto+Heat indicating the actual running status 2. Zone Temperature 3. Fan mode (On, Auto). 4.
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1. Control Figure 4 Four main buttons on THS04 are available (cf Figure.3) 1 - Mode button: Simple push to switch the unit mode (AUTO/COOL/HEAT) when unit is OFF 2 - Fan button: Simple push to switch the fan mode (AUTO/ON) when unit is OFF...
3. Protect setpoints and mode modification by password The THS04 factory default level is set in PGD1 setting : THS04 – Acces Level = Disable It means a that there is no need of password to change unit and fan mode or edit setpoint and occupancy state.
6. Active temperature setpoint override command It is possible with THS04 to override the active temperature setpoint by an offset of +/- 2°C. Turning the button 5 (Figure.4) will offset the active setpoint (Cooling or Heating depending of current mode of unit).