Regin REGIO RC-O Bedienungsanleitung Seite 3

Settings
Control state
RC-O has control state: Heating and cooling in sequence. The
change-over function can be activated, see below.
Change-over function
RC-O has an input for change-over that automatically sets the output
UO1 to operate with heating or cooling function. The input can be
connected to sensors of type PT1000 and have the sensor mounted
so that it senses the temperature on the supply pipe to the coil.
When the temperature exceeds 22°C, the output function is set to
heating and when the temperature drops below 18°C, the output
function is set to cooling.
As an alternative, a potential-free contact can be used. When the con-
tact is open the controller works with the heating function and when it
is closed, with the cooling function.
To ensure satisfactory function using sensor, the system must have
continuous primary circuit circulation. When the change-over function
is not used, the input must be left disconnected.
Operating mode
There are four different operating modes. Switching between these
modes is performed locally.
Stand-by: Both heating and cooling are inactive within a temperature
interval around the applicable setpoint (heating setpoint value - 3°C,
cooling setpoint + 3°C).
Occupied: The room temperature is controlled according to the appli-
cable cooling setpoint (24°C) or heating setpoint (22°C).
Bypass: Is controlled by the occupancy detector or other digital
contact connected to the controller, closing activates Bypass. Control
of the room temperature in the same way as Occupied mode. Bypass
also controls forced ventilation. Reset to Preset operating mode occurs
after 10 minutes of non-occupancy (no signal from presence detector).
Unoccupied: Both heating and cooling are disconnected within a
temperature interval with min/max limits (min 15°C, max 30°C). This
mode is activated when the Occupancy button is held depressed for
more than 5 seconds.
Preset operating mode
Occupied is the preset factory setting. It can be set to Stand-by with
DIP-switch SW3. See table 3 above.
Occupancy detector
An occupancy detector is connected for local control of the operating
mode between Preset operating mode and Bypass.
The Occupancy button
The Occupancy button on the front of the controller switches
between operating modes Bypass and Preset operating mode. A
timer is activated in Bypass mode, and after 2 hours it returns to
Preset operating mode. If the Occupancy button is held depressed for 10
seconds, Off mode is activated.
Open window
Heating and cooling are inactivated.
Setpoint
Local setpoint displacement (+/-3°C) set with the knob on the front of the
controller.
In Occupied mode, the controller operates from a heating setpoint (22°C),
or a cooling setpoint (24°C) that can be changed locally using the DIP
switches and local setpoint displacement.
Switching between heating and cooling setpoints is done automatically
in the controller depending on the heating and cooling requirement. The
controller's control setpoint is the same as the current setpoint plus/minus
the local setpoint displacement.
Frost protection
Regardless of the operating mode, the heating control is forced on when
the room temperature drops below 8°C. Return to normal control occurs
automatically when the room temperature exceeds 8°C.
Condensation detector
If there is condensation, the cooling control is blocked. Return to normal
control occurs automatically when condensation ceases.
Choice of actuator
The output function can be set to NO or NC for thermal actuators
via DIP-switch SW8. The function only applies to UO1.
Indications
RC-O has an LED shaped like a thermometer on the front. A red indi-
cation is shown when heating control is functional and a blue indication
when cooling control is active. No LED indication shows that neither
heating nor cooling control is active. A flashing red/blue indication shows
that a setting is incorrect.
This product carries the CE mark.
For more information, see www.regincontrols.com.
Contact
AB Regin, Box 116, 428 22 Kållered, Sweden
Tel: +46 31 720 02 00, Fax: +46 31 720 02 50
www.regin.se, info@regin.se
RC-O
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