Regin RCF-230D - User Manual

RCF-230D
RCF-230D
Room thermostat for fan-coil applications
with on/off outputs
• Supply voltage 230 V AC
• On/off temperature control, 230 V AC outputs
• Built-in relays for a 3-speed fan, 230 V AC
RCF-230D is a room thermostat intended to control
heating and/or cooling in 2- or 4-pipe installations.
Setpoint and fan speed are set using the buttons on the
front.
• Backlit display
• Input for occupancy detector or window contact
• Input for automatic change-over cooling/heating
RCF-230D is a thermostat for controlling heating and/
or cooling in a room using on/off outputs. It also has a
function for three-speed fan control (for fan-coil).
The thermostat has supply voltage 230 V AC. It has triac
outputs for 230 V AC heating/cooling and built-in
230 V AC fan relays, which means that a separate relay
module is not required for the fan and actuators.
Applications
The thermostat is suitable in buildings where you want
optimal comfort and reduced energy consumption, for
example offices, schools, shopping centres, airports, hotels
and hospitals etc.
Design
The thermostat has a modern design, inspired by the
award-winning design of Regin’s Regio controllers.
Simple installation
The modular design with a separate bottom plate
for wiring makes the thermostat easy to install and
commission. The bottom plate can be put into place
before the electronics are installed. Mounting is directly
on the wall or on a wall socket.
Control function
The thermostat controls heating and/or cooling in a
room via on/off outputs. It has settable hysteresis, factory
setting 1 K (°C). The setpoint can be changed using the
INCREASE ( ) and DECREASE ( ) buttons on the
front.
See also the section ”Display information and handling”
on page 2.
Built-in or external sensor
The thermostat has a built-in sensor. Alternatively, the
input for an external PT1000-sensor can be used.
On/off control outputs
RCF-230D has outputs for controlling 230 V AC on/off
actuators or similar.
2- and 4-pipe installations
In 2-pipe installations, the same water system is used for
heating and cooling, depending on the season. Chilled
water is distributed in the system during summer
and heated water during winter. When RCF-230D is
configured for a 2-pipe system, output DO4 is used for
controlling heating or cooling (depending on the season
(fluid temperature)) via an actuator, a valve or similar
(change-over function).
In 4-pipe installations, there are two separate water
systems for heating and cooling with separate valves. The
thermostat uses two outputs for control of heating and
cooling in sequence.
revision
04 2011
WINTER SUMMER

Regin RCF-230D Specifications

General

Type	Room Thermostat
Power Supply	230 V AC
Control Type	On/Off
Power Consumption	1.5 VA
Protection Class	IP30
Mounting	Wall mounting
Ambient Temperature	-30...+50°C
Sensor	NTC
Weight	0.15 kg

Summary

Applications and Design

Applications

Describes suitability for offices, schools, shopping centres, airports, hotels, and hospitals for optimal comfort and energy savings.

Design

Highlights the modern design inspired by Regin's award-winning Regio controllers.

Simple Installation

Details the modular design with a separate bottom plate for easy wiring and mounting on walls or sockets.

Control Functions and Outputs

Control Function

Explains how the thermostat controls heating/cooling via on/off outputs with settable hysteresis.

Built-in or External Sensor

Covers the use of the internal sensor or an external PT1000 sensor for temperature measurement.

On;off Control Outputs

Details outputs for controlling 230 V AC on/off actuators for heating/cooling.

2- and 4-pipe Installations

Describes control for 2-pipe (seasonal changeover) and 4-pipe (separate heating/cooling) systems.

Advanced Operating Modes and Features

Automatic Change-over Cooling;Heating

Explains the input for automatic switching between heating and cooling in 2-pipe systems.

Occupancy Detection for Saving Energy

Details using occupancy detectors or keycard switches to switch between Comfort and Economy modes.

Operating Modes

Defines Comfort, Economy (Standby), Off, and Window operating modes and their display indications.

Automatic Fan Speed Control

Describes manual and automatic control of fan speed (Low, Medium, High, Auto) based on demand.

Mould Protection

Explains the function that ensures continuous fan circulation to prevent mould growth.

Automatic Exercise of Valves

Covers the function that periodically activates valves to ensure proper operation.

Display Information and Handling

Details the various icons and indications shown on the thermostat display.

Control Principles and User Interface

Control Principle at Cooling Function

Illustrates how the output is activated based on setpoint and hysteresis during cooling.

Control Principle at Heating Function

Illustrates how the output is activated based on setpoint and hysteresis during heating.

Display Handling Using Buttons

Explains the function of the On/Off, INCREASE, DECREASE, and Fan speed buttons.

Configuration Via the Parameter List

Describes how to change factory settings and parameter values using the thermostat buttons.

Technical Data and Wiring

Technical Data

Lists specifications including supply voltage, operating temperature, dimensions, and material.

Inputs and Outputs

Details the available inputs (sensors, contacts) and outputs (fan, valve control).

Settings

Provides a list of configurable settings with their factory default values.

Wiring and Dimensions

Shows terminal connections, wiring diagrams, and physical dimensions of the thermostat.