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TEMPERATURE CONTROLLER FOR 3 WAY VALVE
WITH OR WITHOUT EXTERNAL TEMPERATURE COMPENSATION
(IZOTHERMAL REGULATOR ) 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
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WIRING DIAGRAM
Instalation and commusioning
This device is dedicated to be incorporated in apartment electrical box with size of 4 or more poles
or a cabinet and can be attached on 35mm DIN rail.
Sensors and outputs wiring:
1. Scheme 1 “Local Setp” (Regulates output temperature to a fixed set point)
TS1
: Regulated temperature
TS2
:not used
TS3
: Room temperature
R1:
“Open” direction
R2
: “Close” direction
2. Scheme 2 “TSyphReC” (Regulates output temperature to a variable set point, ambient
temperature dependant)
TS1
: Regulated temperature
TS2
: Ambient temperature
TS3
: Room temperature
R1:
отваряне
R2
: затваряне
PARAMETERS:
„ROOM T.” – Set point of room temperature.
[range = 10º C ÷ 45º C]. Factory= 25 º C;
1.
„Set T.” – Set point of water temperature.
[range = -10º C ÷ 90º C]. Factory = 40 º C;
2.
„±Hist I” – Hysteresis 1 (fine regulation)
[range 2º C ÷ 10º C] Factory= +5º C
3.
„±Hist II” – Hysteresis 2 (coarse regulation)
[range Hist I +2º C ÷ Hist I+ 15º C] Factory = +15 º C
4.
„PulseDur” – Duration of signal pulses for “moving” the valve - either direction.
[range 0. 5sec ÷5.0 sec] Factory = + 1.0 sec;
5.
„ON<>OFF” – Time constant of valve to change from fully open to fully close state.
[range 15 sec ÷ 250 sec] Factory . = 60 sec;
6.
„” – Period of applying signal pulse for direction “open”
[range 5 sec ÷ 60 sec] Factory = 15 sec”
7.
„Period-” – Period of applying signal pulse for direction “close”
[range 5 sec ÷ 60 sec] Factory = 15 sec”
8.
„Setp=” – Mode of operation : at fixed set point (local) or with temperature compensation
based on ambient temperature
9.
“dTAlarm” – Alarm temperature ,a ± margin from current set point. If temperature reading is
“outside” this margin device starts emergency “open” or “close” procedure
[-35
º C ÷ 35º C].
Factory = 35
Attention!
3WMreg is not a safety device as by means of
EN60730-1-Annex H
Attention!
Danger of electric shock!
All activities involving installation and commissioning should be done while electric power is off
Attention!
Power supply should be applied via fuses Phase-La / Lb 6A max.
