Belimo EXT-HA-8023M Series User Manual

EXT-HA-8023M Series Thermostat User Manual
EXT-HA-8023M Series fan coil unit thermostats are designed to control the room
temperature in air-conditioning fan coil unit system or dust pipe channel system, through
the cooperation between room temperature and setting temperature to control the turn-on
or turn-off of fan coil units, motorized valve, ball valves or damper. Network control is
available (MODBUS).
EXT-HA-8023M series thermostats are with microprocessor and big LCD display. It
shows the following items: working states (cool, heat or ventilation), fan speed, room
temperature, set-point temperature etc. Keys include turn on/off ( ),mode ( ), fan speed
( ) and temperature adjustment (   ).
BASIC FEATURES
 Room temperature setting
 Manual or auto 3-speed changeover
 Defrost (low temperature protection)
 Blue back light ( -L, Optional )
 Keypad Lock ( Optional )
 Auto Restart (Adjustable)
 RS485 Interface (MODBUS)
SPECIFICATIONS
 Sensing element:
NTC
 Accuracy:
 1℃
 Set-point range:
5
 Display range:
0～55℃
 Operation environment: 0～45℃
 Operating Humidity: 5～90%RH (non-condensing)
 Key : soft touch key
 Rated Power:  1W
℃ ℃
to 35
STATUS DISPLAY
 Working Status:Cooling
 Fan Speed（Low 、Med
 FCU valve open
 Room temperature display
 Temperature setting display
 Power supply:
AC 85～260V, 50/60Hz
 Wirings: Accepting 2 × 1.5 mm
 Switch current rating: Resistive: 2 A, Inductive: 1 A
 Housing: PC + ABS Flame Retardant
 Dimensions: 90 × 90 × 14.5 mm ( W × H × D )
 Hole pitch: 60 mm ( Standard )
 Protection Class: IP30
1
, Heating or Ventilation
、High
or AUTO）
2 2
or 1 x 2.5mm wires