Wifi-control touch screen temperature controller for air conditioning systems

Installation:

Install the SK302,digital fan coil thermostat, where the occupant can read the display and adjust the set point easily. Situate the thermostat where the
temperature is representative of the general room conditions. Avoid installing thetouch screen thermostat near cold or warm air drafts, radiant heat, on an outside wall, or in direct sunlight.
Mount the touch screen series thermostat to a 75x75x5mm standard electrical wall box. Follow the instruction in Removing the
Base and then proceed to the Wall Mounting and the Wiring sections.

• Lock function:

Lock function: If Lock function is enabled, the fan coil thermostat will be locked automatically after 30 seconds

Unlock function: Hold down the fan key 3 seconds to unlock.

Remote Temperature sensor When remote sensor is connected, the built-in sensor will be disable

• Low Temperature protection Function:

On power Off status and when room temperature lower than 5 ℃ , heat function will be automatically switched
on,“ ”appears, the electrically operated valves is opened on, hot water valve is opened on, and the fan is set to HI-speed.
When the room temperature reaches 7℃, the setting will be automatically canceled.

• Standby Function:

The thermostat will change to standby after 30 seconds no pressed, and backlight becomes slightly bright. Quit the standby
interface by pressing any key and backlight becomes normal again.

• Fault Alarm:

When the sensor is in fault, thermostat will close the fan and valve, and display“ ”,“E1”,“E2”and“EE”.
E1: Sensor short cut alarm
E2: Sensor circuit breaker alarm
EE: E² fault alarm

Display “HI”,temperature＞55℃；display “LO”,temperature＜0℃

• Diagram writing: