2-pipe programmable HVAC thermostat with LCD display

Model Number: S-HC-0506 Key Specifications/Special Features: About the product1. Acrylic lens to avoid the finger scratch2. Touch Button makes simple operation3. Large screen display with backlight, easy to read, even in the dark4. Four-period program schedules maximize comfort and economy5. One-touch temperature control overrides program schedule at any time6. Precise comfort control keeps temperature within 1 Celsius Degree of the level you set7. Data memory when power is off8. Easy to install9. Designed to on/off control the fans and valves in air conditioner applications via comparison of the room temperature and setting temperature to achieve the aim of comfort and saving energyModel definition of thermostat
A1: two pipe: control fan coil unit and two wired motorized valve. (When room temperature reaches the set point, both will turn off)
A2: two pipe: control fan coil unit and two wired motorized valve. (When room temperature reaches the set point, valve will turn off but fan will turn to low speed)
B: two pipe: control on/off motorized damper
C: two pipe: control fan coil unit and three wired motorized valve
M: two pipe: control 0-10V motorized valve
E: four pipe: control fan coil unit and two wired heat and cool motorized valve
T: Clock
L: Backlight
P: Weekly programmable
N: RS485/MODBUS RTU communication
K: Keycard
E: Eternal sensor
P and N could not be compatible at the same time.