Belimo EXT-RCF-24 Electronic Thermostat
Application
EXT-RC series of proportional and fl oating thermostats are used to control room temperature in commercial applications.
Features
- LCD with green backlight
- Detects and displays room temperature
- On/Off capability of cooling and heating equipment
- Room temperature setting
- Fahrenheit (°F) or Celsius (°C) display
- Selectable single or three speed fan control
- Remote sensor input
Technical Data
| Technical Data | |
| Power | AC 24V +10%, 50Hz/60Hz |
| Output signal
EXT-RCP-24 |
AC 24V x 2 (0.5A resistive)
0-10 VDC (5 mA) / 4-20 mA (600Ù) |
| Output signal
EXT-RCF-24 |
AC 24V x 2 (0.5A resistive)
floating point control |
| Input signal | dry contact (NO) |
| Dimensions | 3.4” w x 3.4” h x 0.9” d [86mm x 86mm x 23mm] |
| Fixing screw width | 60mm (standard) |
| Set temperature range | 0° to 99.5° adjustable |
| Accuracy displayed | 0.1° |
| Accuracy | +0.5° |
| Rated power | < 1W |
| Sensor type | NTC |
| Display | LCD |
Basic Features
| Basic Features | |
| Working modes | Cooling , Heating , Ventilating , Auto |
| Fan speed | 3 speed ( Low , Medium , High  ) / Auto |
Operation Instructions
| Operation Instructions | |
| On/Off | Press  button. |
| Setpoint | Press to reduce the setpoint, press to increase the setpoint in 0.5°C increments. The setpoint will be confirmed automatically after 5 seconds and then will return to display status. Press or
to check setpoint. |
| Mode | Press M to change the working mode- Cooling , Heating , Vent . |
| Fan speed
Auto speed |
Press to select the desired speed- low , medium , high , or auto . If single speed fan is chosen, only medium speed will
be available. |
| The fan speed will be changed automatically to the following:
Low speed- when room temperature is 1° difference with setpoint. Med. speed- when room temperature is 2° difference with setpoint. High speed- when room temperature is 3° difference with setpoint. |
|
| Sleep
To set:
To quit: |
The thermostat will go into sleep function after programming. |
Press M button for 3 seconds until display shows. A countdown will start in the center of the screen. Use or adjust the desired sleep time. The maximum setting is 48 hours. The thermostat will return to working status after 5 seconds. will flash to start the countdown. The setpoint will be replaced by the sleep setpoint. |
|
| When the thermostat is in sleep function, will flash. Press or to quit. |
|
| Keypad lock | Press and for 10 seconds. This will activate the display. under this function, the keypad is locked. To unlock, press and
for 10 seconds until disappears. |
| Set parameters | With thermostat off, press M for 10 seconds to enter the menu to set all parameters. |
Dimensions (mm)
Parameter Settings
| Parameter | Description | Default | Range |
| 1 | Power on status (0: off, 1: on, 2: hold) | 2 | – |
| 2 | Fan speed (0: single speed, 1: three speed) | 1 | – |
| 3 | Fan mode (DA: When the temperature reaches the set-point, the valve will close with the fan still running. DB: When the temperature reaches the set-point, the
valve will close and the fan will shut off.) |
0 | – |
| 4 | Sensor selection (0: internal, 1: remote) | 0 | – |
| 5 | Temp. display (0: Celsius, 1: Fahrenheit) | 0 | – |
| 6 | Temperature calibration | 0 | -20 to +20 |
| 7 | Minimum setpoint | 5° / 41° | 0 to 99 |
| 8 | Maximum setpoint | 35° / 96° | 0 to 99.5 |
| 9 | Dead band | 2 | – |
Modulating Output Options
| Location ON OFF | ||
| 1 | 120 ohm resistance between AB wires | No resistance between AB wires |
| 2 | Port 1 modulation 0-20 mA | Off |
| 3 | Port 1 modulation 0-10 VDC | Off |
| 4 | Port 2 modulation 0-20 mA | Off |
| 5 | Port 3 modulation 0-10 VDC | Off |
Wiring Diagrams
Installation Manual
Mounting Method
BELIMO Americas
- USA Locations, 43 Old Ridgebury Road, Danbury, CT 06810
- Tel. 800-543-9038, Fax 800-228-8283, [email protected]
- 1049 Fortunato Loop, Sparks, NV 89436
- Tel. 800-987-9042, Fax 800-987-8875, [email protected]
- Canada Locations, 5845 Kennedy Road, Mississauga, Ontario L4Z 2G3
- Tel. 866-805-7089, Fax 905-712-3124, [email protected]
- Latin America and the Caribbean Customer Service
- Tel. 203-791-8396, Fax 203-791-9139, [email protected]
- Belimo Brasil Comércio de Automação Ltda.
- Tel: 55 11 3643-5656, Fax: 55 11 3643 5657, [email protected]
REFERENCE:
DOWNLOAD MANUALS:
Belimo EXT-RCF-24 Electronic Thermostat Product Specifications Guide
Belimo EXT-RCF-24 Electronic Thermostat Product Specifications Guide
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