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B:XX ZZ
= YYºC WW
0. „EXT.T.L” – Lower point of ambient temperature
. „EXT.T.М” – Middle point of ambient temperature
2. „EXT.T.H” – Highest point of ambient temperature
3. „Fluid Lo” – Lower possible temperature of fluid
4. „Fluid Hi” – Highest possible temperature of fluid
5. „FluidCorr” – General correction of fluid temperature setting
Others:
Fixed hysteresis 2 ºC Fault notification - entire screen blinking
Visualization of R and R2
operation
Manual open / close
Important parameter change is password protected
USAGE
Front pannel
Description
- two lines
display
- 3x push buttons: for Up „Up↑”, for Down „Dn↓”, to select
„Set”
- Push button for selection of operation mode (stop/ automatic)
- Indicaton of alarm event – blinking of backlight (if a sensor is
defective)
Usage of buttons:
. button „Up- ↑”/„Dn-↓”, navigates among list of parameter screens previous/next;
activation with holding button "Set" increase / decrease selected value with
2. button „Set” change value of selected parameter
3. button „AUTO/STOP-” – selects the operational mode of the unit „AUTO”/ „STOP”
Avai ab e windows and usage
Window #1 - Main window
Displays temperature reading of sensors and operational mode of outputs.
Row 1: Outgoing water temperature "XX", "ZZ" relative valve status in percent.
If there is no sensor - „no” is displayed, if sensor is shor circuit or
resistance - “sc” is displayed.
Row 2: temperature set point "YY", "WW" ambient temperature when operating in ambient
temperature correction mode
Meaning of symbols:
” + ” - When submitting the “opening” command, the sign "=" is changed to "+"
” - ” - When submitting the "close" command, the sign "=" is changed with "-"
„ * ” - If the maximum movement is exceeded in the respective direction, the output effects are
discontinued (to save the life of the switching element) and the "sign" = "changes with " * "
„ R ” – While the room temperature displayed differs from the set point by more than -2÷ + °C,
the controller switches for 4 minutes in forced “opening” or “closing” mode to reach the set room
temperature more quickly. Visualized by blinking the "°c" sign alternatively with "R
When "STOP" mode is enabled, row 2 alternately outputs "-STOP--"
---------- PROXEL ENGINEERING ---------------- www.proxel-bg.com-------------------------------- 3WMREG rev. 2.4 /02.20 7------
Set T.
[ 45ºC] 2
±Hist I
[ 2ºC] 3
dTAlar
[ 65ºC] 5
±Hist II
[ 10ºC] 4
ROOM T.25
[ 45ºC] 1
Manua activation of outputs:
Press and hold „SET” button.
Press „Up- ↑” button to manual activation in the "open" mode
Press the "Dn- ↓" button to manually activate in the "close" mode
Using the Buttons for Parameters Adjustment:
Navigates among screens: buttons „Up- ↑” and „Dn-↓”.
To change required parameter – push the „Set” button.
Adjust the value using the buttons „Up- ↑” and „Dn-↓” . Confirm with the button „Set
*Note: Adjustment of all parameters is possible onl after pressing the "Set" button indicated b
placing the value in "[" and "]". Confirm the value again with the "Set" button.
Window/Screen #1 - Room temperature
Display - set and readed room temperature.
Row 1: Displays the selected parameter "ROOM T." and the room temperature
measured at 25°C
Row 2: The value of the parameter. Range 0ºC ÷ 45ºC.
Screen [ ]
Window/Screen #2 - temperature set point
Display - set the operating temperature
Row 1: Displays the selected parameter "Set T."
Row 2: The value of the parameter. Range - 0ºC ÷ 90ºC.
Screen [2]
* If operation mode is based on ambient temperature this value is automatically
selected and can not be adjusted manually
Window/Screen #3 – Hysteresis fine adjustment
Row 1: Displays the selected parameter "± Hist I",
Row 2: The value of the parameter. Range 2ºC ÷ 0ºC. ".
Screen [3]
If there is a difference between the set point and reading below the selected value,
the adjustment is made only by an integral factor.
At a difference above the set value - adjustment is done with a fine step.
* to change this parameter a password is required
Window/Screen #4 – Hysteresis of coarse adjustment
Row 1: Displays the selected parameter “±Hist II
Row 2: The value of the parameter. Range “±Hist I” + 2ºC ÷ 5ºC. ”
Screen [4]
.
If the difference between the set and the achieved between Hist I and Hist II
regulation is done fine.
If the difference is outside the range, the adjustment is done with a coarse (fast) step.
* to change this parameter a password is required
Window/Screen #5 –Emergency c osing / opening temperature
Row 1: Displays the selected parameter “dTAlarm”.
Row 2: The value of the parameter. Range “Set.T”±35ºC.
Screen [5] .
* to change this parameter a password is required
-at "dTAlarm"> "Set T." to an emergency closing is reached if the measured value exceeds the "dT
alarm”
-in "dTAlarm" <"Set T." until emergency closing is reached when the measured value reduces
below "dT Alarm"
