INSTRUCTION
RCF-230AD
i
Instruction for products manufactured from
May 2010. 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-230AD
Room controller for controlling fan-coil units
RCF-230AD is a room controller intended for controlling fan-coil heat-
ers/coolers and actuators with 0...10 V control signal. 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-230AD has change-over function and can be used for 2-pipe or
4-pipe systems.
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
AO1, AO2, 0...10 V DC
Terminal blocks
Lift type for a 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!
Disconnection
RCF-230AD should be connected to a switch or circuit breaker in the
building installation. This switch should be in close proximity to the con-
troller 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-230AD has control modes Heating and Cooling in sequence or
seasonal switching between heating and cooling (change-over, see
below).
Change-over function
RCF-230AD has an input for change-over that automatically sets the
output AO1 to operate with heating or cooling function. A sensor of
type PT1000 can be connected to the input and must 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 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.
Comfort:
is shown in the display, heating and cooling have a
smaller neutral zone NZC. 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
button. Comfort/Economy is selected via the parameter list.
Economy (Standby):
“Standby” is shown in the display. The heat-
ing and cooling setpoints are freely adjustable. Factory settings:
heating=15°C, cooling=30°C.
Off:
The controller does not heat or cool and the fan is inactive, un-
less mould protection has been selected, in which case the fan will
still run.
Window:
is shown in the display, the controller is in Off mode but
the display is still lit. The window contact is connected to the DI and
must be configured.
Occupancy detection
Parameter 3 determines if the DI is window contact input or
occupancy detection input. An occupancy detector can be connected
to the DI in order to switch between Comfort and Economy mode.
Setpoint
The setpoint is set using the INCREASE and DECREASE buttons.
Parameter 24 determines what is shown in the display. Refer to the
parameter list for details. When the setpoint adjustment is shown, the
basic setpoint is 22°C.
7436J
NOV 12
EN