meibes MeiFlow MFR3 User manual
Fixed value controller MFR3
Check the controller and its packaging carefully. If you see visible damage to the
controller, do not use it. Installing a damaged product can be life-threatening.
When adjusting the controller, pay attention to the correct opening direction of the valve.
Wrong turning direction can lead to high or low temperatures in the system and
consequently damage to the system.
When adjusting the controller, make sure you set the minimum and maximum value of
requested temperatures correctly. Incorrectly selected limit values for setting the
requested temperature lead to a wrong setup of requested temperature and,
consequently, undesirable operation and/or damage to the system and user.
The fixed value controller is designed to control a mixer. Any other use is not intended.
The controller may only be installed and operated in:
-Dry, non-explosive environment.
-Enclosed rooms.
-Rooms with a temperature between 0 °C and +55 °C.
Every project with controller must have independent system protection for cases of too
low or too high temperatures. The controller does not perform protection functions for
cases of too high or too low temperatures in the system. High or low temperatures in the
system can cause damage to the system and user.
1 - Button (Reset).
2 - Button (Move to left or decrease value).
3 - Button (Move to right or increase value).
4 - Button (Confirm selection).
5 - USB connection for PC
6 - Graphic display.
7 - Button (Help / User manual).
8 - Clutch for manual operation.
9 - Removable knob for manual operation.
10 - Pre-wired power cord with plug.
11 - Pre-wired temperature sensor.
Commissioning of the controller
24.0 °
16 40
MAX
40.0 °
21 40
MIN
16.0 °
5 3050 70
60.0 °
1
#
5s and
Activation of
the
controller
Selection
Hydraulic
diagram
Selection
Heating/cooling
Selection
Valve rotation
direction
Min. Target
temperature
- Heating
Max. Target
temperature
- Heating
10 70
50.0 °
MIN
55 90
MAX
70.0 °
MFR3
Ver.:1.0r0
Sn: 12345678
T1 65.5°
Target temperature
- Heating
Min. Target
temperature
- Cooling
Max.Target
temperature
- Cooling
Target temperature
- Cooling
Basic screen
Warnings
Description of the controller
1 2 3 4 5
117 8 96 10
Flow control
Cooling
1
#
2
#
(4) Open in
clockwise
direction
(3) Open in counter
clockwise direction
24.0 °
16 40
MAX
40.0 °
21 40
MIN
16.0 °
5 30
Min. Target
temperature
Max. Target
temperature
Target temperature
10 70
50.0 °
MIN
50 70
60.0 °
55 90
MAX
70.0 °
Min. Target
Temperature
Max. Target
Temperature
Target temperature
Heating / cooling selection
Hydraulic scheme selection
Valve rotation direction
Minimum, maximum and target temperature when heating
Minimum, maximum and target temperature when cooling
Function
Mixer left
Mixer right
Return flow increase
TKM
Valve
Direction of rotation
3
4 *
4
4
*= Factory setting
Heating
Return flow control
0 1 MC 0 6 0 5 5 3
N6060001
°C
T1
60.0
65.5°
Basic screen
Type of operation
Actual temperature
Target temperature
- Heating
- Cooling
- Valve rotation direction
counter clockwise
- Valve rotation direction
clockwise
- Return flow temperature
- Flow temperature
- Transmission deactivated
- Target temperature
- Error
Type of operation
Actual and target temperature
Hydraulic diagram
Displayed symbols:
60
T1=65
°C
°C
°C
T1
60.0
65.5°
Valve direction setting - shortcut
5s
User instructions
1x
User instructions
°C
T1
60.0
65.5°
°C
T1
60.0
65.5°
Target temperature setting
1s and
50 70
60.0 °
5s
Manual operation
Basic screen
T1 65.5°
1
2
Error
Basic screen Basic screen
T1 Error 60°C
T1=Err
Heating / cooling selection
Assembly and electr. connection
230V AC, 50 Hz
fixed connection
via Schuko plug
Technical data
Dimensions
When the clutch is activated, the control of the mixing valve switches off.
Manual movement of the
mixing valve is activated by
pressing the clutch button.
The desired position of the
mixing valve is set by turning
the rotary knob. With renewed
pressure on the clutch button,
manual movement is
deactivated.
and confirmed with button .
Replacement of the power cord
If the power cord is damaged, it can be replaced. The
cable is equipped with the mains plug and connector.
To replace the cable, the cable protection cover must
first be removed.
The replacement of the power cord is only
possible with the
original power cord.
Fatal risk of electric shock!
Before starting the installation, always make sure that
you are completely disconnected from the mains and
secure against being switched on again!
Settings are made with buttons and and confirmed with button .
Settings are made with buttons and and confirmed with button
i
i
!
T1:
Temp. sensor type: Pt1000,
firmly connected,
Cable length: 0.5 m
Sensor diameter: 5 mm
80,3
95
61 34
86,5
Torque:
Rotation angle:
Rotation speed
Type of operation:
Supply voltage:
Max. power consumption:
Temperature range:
Protection class:
Protection class:
Dimensions (W × L × H):
Weight:
Colour / material:
Battery:
Clock accuracy:
6 Nm
90 <°
2 min / 90 <°
3-point, PID
230V AC, 50 Hz
3.5 VA
0 ÷ 50 °C
IP42 according to EN 60529
I according to EN 60730-1
86.5 x 95 x 80.3 mm
900 g
Dark gray / PC
CR1025 (Li-Mn) 3V
+/- 1s (24h) at 20 °C
71
Basic screen
Basic screen
Settings are made with buttons and
Basic screen
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