Belimo EXT-CFU-230-D Series User Manual

1
V1.1. 03.2015 • Subject to modification
EXT-CFU-230-D.. Touch Keypad Thermostat
EXT-CFU-230-D.. Touch Keypad fan coil unit thermostats are designed
to control the room temperature in air-conditioning fan coil unit system
or dust pipe channel system. EXT-CFU-230-D.. thermostats with
microprocessor and big LCD display.
Basic features:
· LCD with white backlight
· Manual or auto 3-speed changeover
· Defrost (low temperature protection)
· Keypad Lock (Option )
· Auto Restart ( Option )
Technical data
Power supply AC 85...260V 50/60Hz
Switch current rating
2A (Resistive)
1A (Inductive)
Power consumption <1W
Display range 0...+55°C
Display accuracy ±0.5°C
Sensing element NTC
Wiring Accepting 2x1.5mm
2
or 1x2.5mm
2
wires
Control accuracy ±1°C
Set-point range +5...+35°C
Operation environment 0...+45°C
Protection class IP30
Humidity 5...95%RH, non-condensing
Key Touch keypad + soft touch key
Housing PC+ABS Flame Retardant
Hole pitch 60mm (Standard)
Dimensions (WxHxD) 90x90x14.2mm
Low
L
N
VO
Med
Fan
Valve
VC
AC85~ 260V 50/60Hz
N L
Hi
Wiring Diagram
· EXT-CFU-230-D222 suits 2-pipe system
· EXT-CFU-230-D422* suits 4-pipe system
· Room temperature setting
* EXT-CFU-230-D422 available on request
EXT-CFU-230-D222
Val2
Low
L
Cooling
N
Med
Fan
Val1
Heating
N L
Hi
AC85~ 260V 50/60Hz
EXT-CFU-230-D422
· Touch keypad

Belimo EXT-CFU-230-D Series Specifications

General

Brand	Belimo
Model	EXT-CFU-230-D Series
Category	Thermostat
Language	English

Summary

Product Overview and Specifications

Basic Features

Lists the fundamental characteristics of the EXT-CFU-230-D.. thermostats, including LCD, settings, and keypad functionality.

Technical Data

Provides detailed technical specifications such as power supply, accuracy, operating environment, and dimensions.

Wiring Diagrams

Illustrates the electrical connections for EXT-CFU-230-D222 and EXT-CFU-230-D422 models.

User Interface and Operation

Display Status Indicators

Details the various status indicators shown on the thermostat's display, such as working mode and temperature.

Operation Instructions

Explains how to use the thermostat's functions like setting temperature, mode, fan speed, and keypad lock.

Installation and Physical Specifications

Step-by-Step Installation Guide

Provides a sequential guide for mounting and connecting the thermostat, including opening covers and wiring.

Physical Dimensions

Details the physical size and mounting hole pitch of the thermostat unit.