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  • Product Name: WRT-424 PI Controller
  • Product ID: e02
  • Added time: 2015-10-26
  • Views : 238

WRT-424 PI control can measure temperature through either internally-mounted temperature sensor or external temperature sensor. The switch of internally-mounted or external sensor can be realized through a switching device. The control can figure out the position of actuator by proportional-integral control function so as to keep the target temperature at set point.

 

Features:

1. For 2-pipe FCU, to control 0-10VDC & 4-20mA modulating valve, Fan on/off.

2. For 2-pipe FCU, to control float-point valve, Fan on/off.

3. For 2-pipe FCU, to control 0-10VDC & 4-20mA modulating valve, and  220VAC three-speed Fan (High-Mid-low).

4. For 4-pipe FCU, to control 0-10VDC & 4-20mA modulating valve, and  220VAC three-speed Fan (High-Mid-low).

5. For 4-pipe FCU, to control 0-10VDC & 4-20mA modulating valve, Fan on/off. 

6. Fan speed stage and valve open angle both can be displayed in the screen.

7. Password protected programmable for user and control parameters.

8. Blue back light.

 

Application:

● Air system—Supply air cascade control;

● Air/water system—for 2-pipe or 4-pipe HVAC system, radiator or roof refrigeration;

● Water system: Ground heating, radiator or roof refrigeration;

● For temperature controlling of single room, apartment in hotel or meeting room 

 

Technical Specification

1. Power Supply:  Operating Voltage: 24V AC 50/60 Hz ± 10%    

  Power Consumption: Max 3W

  Electrical Connection: terminal Connectors    

   Electrical specification: Signal ground = power ground

2. Product standard:  Protection class: IP30    Safety Class: III

3. Environment:  Ambient temperature:  -10...50℃    Humidity:  <95% r.h.

 

 

 

 
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