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, set-point temperature etc. Keys include on/off (
),mode
( ),fan speed ( ) and temperature adjustment (
).
BASIC FEATURES
LCD Display
■
Room temperature setting
■
Manual or auto 3-speed changeover
■
Defrost (low temperature protection)
■
Blue back light
■
Key lock ( Optional )
■
Auto-restart
■
Working Status: Cooling , Heating or Ventilation
■
Fan Speed
（
Low
、
Med
、
High
or
AUTO
）
■
FCU valve status
■
Room temperature display
■
Temperature setting display
SPECIFICATIONS
■
Sensing element:
NTC
1
℃
■
Set-point range:
5 to 35
℃
℃
■
Display range:
0
～
55
℃
■
Operation environment: 0
～
45
℃
■
Operating Humidity: 5
～
90%RH
(non-condensing)
■
Power supply: AC 85
～
260V, 50/60Hz
■
Wirings: Accepting 2 × 1.5 mm
2
or 1 x 2.5
mm
2
wires
■
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
■
Accuracy:
■
Key: Soft touch
OPERATION
■
On/Off: Press “ ” to turn on, press “ ” again to turn off thermostat and its output.
■
Setting temperature: Press “
” to reduce set-point, press “
” to raise set-point, and 0.5
℃
changed once.
■
Mode Selection: Press “ ” to change system working in cooling “ ”, heating “ ” or ventilation “ ” mode, the
related icon will flash
■
Fan Speed Selection: Press “ ” to change fan speed among “ (Hi)”, “ (Med)”, “ (Low)”
or “AUTO
(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.
EXT
-HA-8023
Series
Thermostat
www.belimo.
com
EXT-
HA
-
8023
• en-ap • 2020-
1
1
-
10
• subject to changes
1
