Parameter list
Appendix B Parameter list
The parameter list is used to make basic configurations for the controller. It is intended for quick
configurations for installers.
The parameter list is entered by tapping a special sequence with the buttons on the controller:
✓ Press the Arrow up and Arrow down buttons simultaneously for five seconds
✓ 0000 is shown in the display
✓ Release the two arrow buttons
✓ Push the Arrow up button twice while 0000 is still shown in the display (5 s), else the display will
revert to Idle mode
✓ P001 is shown in the display (parameter 1)
✓ Use the Arrow up or Arrow down to step through the parameter list
The display looks as in Figure B-1 when inside the parameter list.
Figure B-1 Display when inside the parameter list
If the display is left in Parameter menu for more than 5 seconds without any activity (buttons pressed), the
controller will exit the parameter menu and revert to Idle mode.
Parameter
Number
Description Default value Min Value Max Value
1 Basic setpoint (SP
basic
) 22 °C
5 50
2 Hysteresis used for setpoint calculation at Occupied
state (heating and cooling)
2 °C 1 10
3 Hysteresis used for setpoint calculation at Standby
state (heating and cooling)
14 K 1 30
4-6 Not used 0 0 0
7
DeltaT, temperature span for On/Off control 1 K 0 30
8 Controller mode
0 = 2-pipe systems
1 = 4-pipe systems
0 0 1
9 The change-over mode
0 = Manual setting in display
1 = Manual Heat
2 = Manual Cool
3 = Automatic via analogue or digital input
0 0 3
10 Temperature difference between the room tempera-
ture and the water temperature to switch to heating
3 °C 1 25
11 Temperature difference between the room tempera-
ture and the water temperature to switch to cooling
3 °C 1 25
22 RCFD-230C manual, Rev. A
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