LCD Electronic Thermostat
EXT-CF230-D202-AF, EXT-CF230-D402-AF
RSA - A mais completa em soluções para HVAC e Automação
Avenida Ragueb Chohfi, 960 - Torre 3, Sala 73 - Jardim Três Marias, São Paulo-SP, Cep: 08375-000
Telefone Sac: 55 11 2031 6658 - Email: contato@rsistemasdeautomacao.com.br
Site: http://www.rsistemas-automacao.com.br
Overview of Functions
Slim type EXT-CF230-D202-AF and EXT-CF230-D402-AF thermostat provides the
foundation for modern fancoil applications.
Features
•
Large LCD with blue backlight
•
Stylish appearance with hidden buttons
•
For 2 or 3 wires on-off controlled devices in 2-pipe FCU system (EXT-CF230-D202-
AF)
•
For 2 wires on-off controlled devices in 4-pipe FCU system (EXT-CF230-D402-AF)
•
3 speed / auto-speed for fan controls
•
Defrost - low temperature protection
•
Temperature off-set adjustment
•
Temperature / setpoint display selection
•
Memory rentention
•
Set point range adjustment
•
°C display
Basic Features
Auto speed: difference between setpoint and ambient temperature,
1 K - Low ; 2 K - Medium ; 3 K - High
Low temperature protection. When the unit in “OFF” status and
ambient temperature lower than 5°C, it will switch on automatically
in heat mode with “ ” showing. When the temperature reached
7°C, it will stop automatically.
The backlight will light up 7 seconds whenever button is pressed.
By pressing “
”, backlight light up 30 seconds.
When the valve is opening, the icon “
” displays.
When “RST” button is pressed, the thermostat will restart with last
saved setting.
All last saved parameters will be kept after power failure or power off.
Dimension and Terminals
230 VAC Neutral N (comm)
Output for fan - High speed
Output for fan - Medium speed
Output for fan - Low speed
Output for actuator - Cool
Output for actuator - Heat
230 VAC Live L
O56002 - 04/12 - Subject to change. © Belimo Aircontrols (USA), Inc.
Temperature Display Range
0…55°C [ <0°C : LO, >55°C : HI ]
Sensing Element & Control
NTC Thermistor, 100k ohm @ 25°C
High-Med-Low or Auto-speed
Relay output contact 3A Resistive, 1A Inductive,
250 VAC 50/60 Hz
Fan switch 3A Resistive, 1A Inductive,
AC 250V 50/60 Hz
On/Off Control, 3-wires & spring return 2 wires
Cooling or Heating (2-pipe system)
Operating: 0 to 45°C
Storage: 0 to 50°C
Terminal wiring 0.5....
1.5 mm2
LV Directive
CE according to 2006/95/EC
EMC CE according to 2004/108/EC
max. 95% r.h., non-condensing