Regin RC-FO Manuel D'instructions page 2

Follow table 1 below for setting. (FS) in the text indicates factory set-
ting.
Table 1. I/O connection terminals
Ter- Desig- Operation
minal nation
10 G Supply voltage 24 V AC
11 G0 Supply voltage 0 V
12 DO1 For fan control, low speed. 24 V AC output,
max 0.5 A. 24 V AC relay is connected between
terminal 12 and terminal 20, GDO.
13 DO2 For fan control, medium speed. 24 V AC output,
max 0.5 A. 24 V AC relay is connected between
terminal 13 and terminal 20, GDO.
14 DO3 For fan control, high speed. 24 V AC output,
max 0.5 A. 24 V AC relay is connected between
terminal 14 and terminal 20, GDO.
20 GDO 24 V AC out common for DO. Internally connec-
ted to terminal 10, G.
21 G0 0 V common for UO. Internally connected to
terminal 11, G0.
22 DO4 For forced ventilation. 24 V AC output, max 0.5
A. 24 V AC actuator is connected between termi-
nal 22 and terminal 20, GDO.
23 UO1 Control of heating (FS) or cooling via change-
over.
For 0...10 V DC valve actuator, max 5 mA (FS).
The valve actuator's 0...10 V control signal ter-
minal is connected to terminal 23 and its supply
terminals to terminals 10 and 11. Make sure that
the reference pole G0 is connected to the correct
terminal on the actuator.
alternative
For 24 V AC thermal actuator, max 2.0 A. The
thermal actuator is connected between terminals
23 and 20, GDO.
Using DIP-switch SW8, the output can be set to
NO or NC, see table 3, SW8.
N.B: when UO1 has been set for use with
thermal actuators for 24 V AC (digital output
function) the controller utilizes time-proportional
control to give a smooth control of the connected
actuator. The output signal for UO1 can be set to
NC (normally closed) or NO (normally open) by
changing the position of DIP-switch SW8. This
setting refers to which type of actuator, NC or
NO it is intended for.
Selection of output function, analogue or digital,
see table 3, SW5.
24 UO2 Control output cooling.
For 0...10 V DC valve actuator, max 5 mA (FS).
The valve actuator's 0...10 V control signal ter-
minal is connected to terminal 24 and its supply
terminals to terminals 10 and 11. Make sure that
the reference pole G0 is connected to the correct
terminal on the actuator.
alternative
For 24 V AC thermal actuator, max 2.0 A. The
thermal actuator is connected between terminals
24 and 20, GDO.
Selection of output function, analogue or digital,
see table 3, SW6.
RC-FO
30 AI1 For external room sensor, PT1000. Range 0...50°C.
Sensor is connected between terminals 30 and 41,
AGnd.
See table 3, SW7.
31 UI1 For switching between heating and cooling on a
two-pipe system (Change-over).
PT1000-sensor is connected between terminals
31 and 41, AGnd. Range: 0...100°C.
alternative
For potential-free contact. A potential-free contact
is connected between terminals 31 and 41, AGnd.
32 DI1 Occupancy detector. A potential-free contact is
connected between terminals 32 and 40, +C.
Closed contact corresponds to occupancy.
See also section Occupancy detector below.
33 DI2/CI Regin's condensation detector, KG-A (FS). The
sensor is connected between terminals 33 and
41, AGnd.
alternative
Window contact (DI)
A potential-free contact is connected between
terminals 33 and 40, +C. Closed contact indica-
tes closed window.
See table 3, SW4.
40 +C 24 V DC out common for DI and UI (with digital
function)
41 AGnd Analogue ground, reference for AI and UI (with
analogue and digital function)
42-43 No function
DIP-switches
There are 8 DIP-switches (SW1-8) on the rear of the electronics cas-
sette, for setting basic functions. Follow tables 2 and 3 below for setting
SW1-8. (FS) in the text indicates factory setting.
Table 2. Basic setpoint, heating. (The cooling setpoint is 2°C higher.)
Basic setpoint (°C) SW1 SW2
20 OFF OFF
22 (FS) OFF ON
24 ON OFF
26 ON ON
2