Parameter Settings: Switch off the thermostat and press “M” and “ ” 5 seconds to enter parameter setting menu, press the “M” or “‘S'” to change the item, and press “ ” to change the value, after you finish all settings, the thermostat will storage all the setting and switch off in 20Seconds automatically BC103S-AC User Manual Surface Mounting This universal thermostats work with: Single or Double Stage Compressor Single or Double Heat Timer/Programmable Auto/on fan speed Timer/Programmable(model No. with T Only) Modbus communication(model No. with M Only) Dry contact for window or door, Hotel card holder External sensor for air temperature Modbus Communication _ Power Supply - Model Number BC103S-ACDTM means: Surface Mounting, AC&HP type, Dry Contact & External sensor, Programmable, Modbus 2. Temperature setting range: 5-35°C 4. Temperature control Accuracy: ± 1°C 5. Fan type: Single speed Auto or On 7. Remote Sensor Type: NTC10K. B=3950 8. Communication: Modbus 4800,9600,19200bps baud rate 9. Dry contact: for window, door or hotel card holder 10. Storage temperature: -20C~60C; Operating temperature: 0~50°C 15. Product Color: white RAL9010 16. Installation type: Surface mounting; Hole pitch: 60mm User Guide: ON/OFF: Press power button to switch ON and OFF thermostat. Temperature Setting: Press “ ^ ” to reduce temperature, press “ ^ ” to raise temperature Mode: Press “M” to change mode between Cool 3ft, Heat * , mode will be confirmed by pressing other button or automatically after 6 seconds Fan: Press “‘S'” to change fan 4'^=^ (ON) or ‘S' (Auto), ON means when the room temperature reaches the setpoint, the fan will keep running, and Auto means fan stop after room temperature reaches the setpoint Backlight: Any key press will activate the backlight. Backlights will timeout 6 seconds after last key press. Keypad Lockout: (ONLY available when Item 11 set to 1/2/3): Press “^”and “^” for 3 seconds to lock the buttons and press “ ^ ”and “ ^ ” for 3 seconds to unlock. Clock (Model No. with T Only): Power on thermostat, press “M” for 3 seconds 1, the symbol hour flash, press ^or ^ to adjust hour 2, press “M” key, minute flash, press “^” or “^” to adjust minute 3, press “M” key, week flash, press “ ^ ” or “ ^ ” to adjust week Timer on/off (Model No. with T Only): Repeat the Clock steps 1~4 above 1, Timer on and hour flash, press “ ^ ” or “ ^ ” to adjust hour 2, press “M” key, minute flash, press “^” or “^” to adjust minute 3, press “M” key, Timer off and hour flash, press “ ^ ” or “ ^ ” to adjust hour 4, press “M” key, minute flash, press “^” or “^” to adjust minute 5, press “M” or wait 6 seconds to confirm Note: This function only acts once and valid on current day. Programmable (Model No. with T Only): Power on thermostat, press “M” and “'5'” for 3 seconds 2, Press “ ^ ”and “ ^ ” to set start hour 3, Press “M” and use “ ^ ^ ” to set start minute 4, Press “M” and use “ ^ ” “ ^ ” to set desired temperature 5, Press “M” to enter event 2/3/4 and repeat step 2~4 6, Press “M” to edit “Sat & Sun” and repeat step 1~5 7, Press “M” or wait 6 seconds to confirm all the settings above Table Explanation: 1- Selectable System Type: Select the system is AC or HP 2- Auto Mode: manual or auto season changeover 3- Sensor Type: 1: Internal sensor only. 2: external sensor only 5-Unoccupied Status: when the hotel card is pulled out, the unoccupancy status will be: 0: no output; 1: thermostat will work in energy saving mode with setback setpoint, fan will run at low speed 7- Display Temperature adjustment: you can calibrate the room temperature by the range from -4C to 4C 8- Dead Band: the cool/heat will be only activated if differential temperature between setpoint and room temperature > the dead band. For example, under cooling mode, the setpoint is 25C with dead band=1C, the cool air will be only available if the room temperature > 26C. 11- Keypad lock: can be preset to 4 types for different people authorization, the symbol b will show on the screen, after setting the value, press “ ^ ” or “

12- Power Up Status: when power supply failed and back again, the thermostat will follow three status: 0: keep system off; 1: keep the system original status before the power failure. 2: switch the system on automatically 13- Energy Saving-Hotel Card function A dry contact (such as hotel key card) can activate the energy saving mode with icon O^appearing on screen. 14- Freezing protection: In freezing protection mode (no such mode in cool only application), when thermostat is in OFF mode while the acquired temperature is below 6C, the thermostat will start heat mode until the temperature rises...