Thermostat 3WM+A

DESCRIPTION

The unit is applicable for controlling the output temperature of electrically actuated 3 way mixing valve:
- Mode 1“Setp C =ExtTemp” – compensation of regulated temperature according to external temperature (isothermal regulation)
- Mode 2“ Setp C =Local T” – fixed temperature preset by user

Characteristics:
1. Control commands for „Open” and „Close” for directions of motor driven 3-way mixing valve.
2. Reads 1 or 2 temperatures
3. Parameters 16
4. User selectable mode of operation – fixed temperature or isothermal regulator
5. Push button Start/Stop
6. Power supply – 230 V AC, consumption <2VA
7. Outputs: 2 x – separate relays for commutation of :
    - R1 n.o. – for “open” command
    - R2 n.o. – for “close” command
8. LCD display – alphanumeric 8х2
9. Buttons for navigation – 3pcs. 1 Button for On/Off

TECHNICAL DATA

Power Supply: 230V±10% /50Hz. ≤ 2VА
Installation on DIN rail 35mm; for incorporation
Operating temperature: -5T40, RH80%
Transport -20/+60 º C
Overall dimensions: 68x85x58 mm.
Case IP20
Sensor types: PTC 1k
Reading range : -40ºC÷150 ºC;
Accuracy ±1ºC if (-5ºC ÷ +100 ºC); else±4ºC.
Outputs:
-Relay R1- 230V - 5A и 180W/AC3 (motor)
-Relay R2- 230V - 5А и 1500W/AC3(motor)
-Relay R3- 230V - 5A option
Power supply 230V AC – (internal and R1) – #17 (Live “La”); #16 („N”);
R1: valve – “open” – #18 (switches Live); #15 („N”); – 5А max.
R2: valve – “close” – #20 (separate Live ”Lb”); #22 output – 5А max.
R3: Option


Technical sheet 3WM+A-En