Belimo EXT-HA-8023 Series Quick Start Manual

EXT-HA-8023 Series Touch Pad fan coil unit thermostats are designed to control
the room temperature in air-conditioning fan coil unit system or dust pipe channel
system. EXT-HA-8023 series thermostats with microprocessor and big LCD display. It
shows the following items: working status (cool, heat or ventilation), fan speed,
room temperature,
( ),fan speed ( ) and temperature adjustment (   ).

BASIC FEATURES

■ Room temperature setting
■ Manual or auto 3-speed changeover
■ Defrost (low temperature protection)
■ Blue back light
■ Key lock ( Optional )
■ Auto-restart

SPECIFICATIONS

■ Sensing element:
■ Accuracy:
■ Set-point range:
■
Display range:
■ Operation environment: 0～45℃
■ Operating Humidity: 5 ～ 90%RH
(non-condensing)
■
Key: Soft touch

OPERATION

■ On/Off: Press "
■ Setting temperature: Press "" to reduce set-point, press "" to raise set-point, and 0.5℃ changed once.
■ Mode Selection: Press "
related icon will flash
■ Fan Speed Selection: Press "
(Auto)".
Under auto fan speed "AUTO", the fan-speed will be changed automatically. Auto LOW-speed When the difference
between room-temperature and set-point is 1℃; Auto MED-speed When difference is 2℃; Auto Hi-speed When
difference is 3℃.
■ Control Motorized Valve: If the differential temperature between room temperature and set-point exceed 1℃, FCU
valve will be open; if room temperature and set-point are equal, EXT-HA-8023 will close the FCU valve with
the fan still running.
www.belimo.com
EXT-HA-8023 Series
set-point temperature etc. Keys include on/off (
NTC
 1℃
5 to 35
℃ ℃
0～55℃
" to turn on, press " " again to turn off thermostat and its output.
" to change system working in cooling "
" to change fan speed among "
EXT-HA-8023 • en-ap • 2020-11-10 • subject to changes
Thermostat
LCD Display
■ Working Status: Cooling
■ Fan Speed（Low
■ FCU valve status
■ Room temperature display
■ Temperature setting display
Power supply:
■
■
Wirings: Accepting 2 × 1.5 mm
■ Switch current rating: Resistive: 2 A, Inductive: 1 A
■ Housing: PC + ABS Fire Retardant
■ Dimensions: 90×88×15.5 mm ( W × H × D )
■ Hole pitch: 60 mm ( Standard )
■ Protection Class: IP30
■ Rated Power: < 1W
", heating "
(Hi)", "
),mode
, Heating or Ventilation
、Med 、High
AC 85～260V, 50/60Hz
2
or 1 x 2.5 mm
" or ventilation " " mode, the
(Med)", " (Low)" or "AUTO
or
AUTO ）
2
wires
1