INSTRUCTION
i
RCF-230TD
Instruction for products with software version
1.4. Read this instruction before installation and
wiring of the product.
Consult documentation in all cases where this symbol
is used, in order to find out the nature of the potential
hazards and any actions to be taken.
1
RCF-230TD
Room controller for controlling fan-coil units
RCF-230TD is a room controller intended for controlling fan-coil
heaters/coolers and thermal actuators or 3-point actuators.
Installation is directly on the wall or on an electrical connection box.
The controller does not have a communication connection. The fan
can be set to one of three speeds.
RCF-230TD has change-over function and can be used for 2-pipe or
4-pipe systems.
The controller has a function for control of an electric heater.
Technical data
Supply voltage
230 V AC ±10 %, 50/60 Hz
Power consumption
< 3 W
Ambient temperature
0...50°C
Ambient humidity
Max 90 % RH
Storage temperature
-20...+70°C
Built-in temperature sensor NTC type, range 0...50°C
Inputs
Refer to connection illustrations and
table below
Outputs
Relays for fan control, 230 V AC, 3 A
DO4, DO5 for actuators, Triac, 230 V AC,
max. 300 mA (3 A initially)
Terminal blocks
Lift type (maximum cable area 2.1 mm
2
)
Protection class
IP20
Pollution degree
2
Overvoltage category
3
Material casing
Polycarbonate, PC
Dimensions
102 x 120 x 29 mm
Installation
Place the controller in a location that has a temperature representative for
the room. A suitable location is approx. 1.6 m above floor level in a place
with unobstructed air circulation.
Depress the locking tab in the upper edge of the controller with a
screwdriver. Carefully turn the screwdriver until the bottom plate and the
electronics unit are slightly separated (see figure 1). Then
use the cutout
that becomes visible in the edge of the bottom plate to open the upper
edge completely (see figure 2). Do the same thing in the lower edge of the
controller.
Figure 1
Figure 2
Lift the electronics unit up from the bottom plate. The bottom plate with
terminals has a number of hole combinations. Select suitable holes and
fasten the bottom plate on the wall or connection box, so that the arrows
on the bottom plate point upwards. Do not tighten the screws too hard!
Note: RCF-230TD does not indicate fan breakdown or overheating of the
heating coil. Therefore, all connections must be made externally. An over-
heating protection or similar can be used to disconnect the supply voltage.
Disconnection
RCF-230TD should be connected to a switch or circuit breaker in
the building installation. This switch should be in close proximity to
the controller and within easy reach of the operator, and should be
marked as the disconnecting device for the equipment.
Always use the circuit breaker to disconnect the controller from the
mains supply during maintenance of the fan-coil and actuators.
Settings
Control modes
RCF-230TD can control heating and cooling in sequence or be set to
seasonal switching between heating and cooling (change-over, see
below). Cascade control and min/max limitation of the supply air is
also possible.
Change-over function
RCF-230TD has an input for change-over that automatically resets
the output DO4 to operate with heating or cooling function. When
the controller is used together with a 3-position actuator, output DO5
is also affected by the change-over function in accordance with the
above. A sensor of type PT1000 can be connected to the input and be
mounted so that it senses the temperature on the supply pipe to the
coil.
When the temperature exceeds 28°C, the output function is set to
heating and when the temperature drops below 16°C, the output is
set to cooling. As an alternative, a potential-free contact can be used.
The input function can be set to NO/NC.
To ensure satisfactory functioning when using a sensor, the system
must have continuous primary circuit circulation. When the change-
over function is not used, the input must be left disconnected.
When using an electric heater and the change-over function is set to
heating, the sequence of operation for RCF-230TD will be heating/
heating and DO5 will be activated first.
If a change-over sensor is not connected, the sequence will be heat-
ing/heating. If cooling is to be used in the sequence, parameter 2
(change-over mode) must be changed manually.
When set to cooling, the sequence of operation will be a normal hea-
ting/cooling sequence, where DO4 and DO5 opens according to the
heating and cooling demands.
Operating mode
There are four different operating modes. Switching between these
modes is performed locally.
Comfort:
is shown in the display. Heating and cooling have a
smaller neutral zone. An occupancy detector can be connected to
the DI in order to select between Comfort and Economy. Switching
between Comfort/Economy and Off can also be done via the On/Off
7416R
MA
Y 19
EN
