Mars HEAT CONTROLLER IR Wireless Thermostat User manual

Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • [phone] • www.heatcontroller.com
USER MANUAL
IR Wireless Thermostat

IR Wireless Thermostat - User Manual Heat Controller
1.Operation guidelines…………………………………………………1
2.Thermostat installation……………………………………………11
3.Thermostat dismounting instruction…………………………16
4.Battery replacement……………………………………………… 17

Heat Controller IR Wireless Thermostat - User Manual
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1. Operation guidelines
This wireless thermostat is for PTAC unit control. The LCD
screen displays the operating status.
Fig. 1
There are 7 buttons on the wireless thermostat. After very first
power on, the LCD screen displays all characters and then enters
ready mode. Initial value of the thermostat real time is 0:00AM,
Monday. Press "ON/OFF" button to turn on the wireless thermostat,
it will enter the default operating mode: cool mode, auto fan speed,
set point 25℃ (77℉). By pressing mode button, thermostat
performs sequential switching "Cool→Fan→Heat→Cool". Under
OFF mode, only "ON/OFF and TIME and SET" buttons are available.
When the thermostat is turned on, all buttons are available. Set
point, operation mode, fan speed settings and timing functions are
displayed with related characters on LCD screen. The details are
as follows:
SET Button
TIME Button
MODE Button
Fan Speed Button
ON/OFF Button
Decreasing Button
Increasing Button
LCD
Sending Window
LCD

IR Wireless Thermostat - User Manual Heat Controller
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Fig.2
(1) Temperature display: displays room temperature ("Room"
character appears) or set point ("Set" character appears).The
set point range is 16℃–32℃ or 61℉–90℉.
(2) Fan speed display: displays Fan High, Fan Low, Fan
Auto.
(3)Mode display: displays Heat Mode, Cool Mode, Fan Mode.
(4)Timing display: displays 1–12H.
(5)Day display: displays Monday - Sunday.
(6)System time display: displays real time clock.
(7)Signal sending mark display: is displayed when a control
Timing Day System time Data sending mark
Mode temperature Fan speed

Heat Controller IR Wireless Thermostat - User Manual
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signal is sent out.
(8)Locking display: When this mark appears, the thermostat is
locked, this time only ON/OFF button is available.
(9)Battery condition display: In case this mark appears,
control signal sending will become unavailable and you
need to replace batteries.
Function overview
(1) ON/OFF Button ( )
①Wireless thermostat shall perform sequential switching in the
order of "ON→OFF→ON" by each press of this button.
②If it is OFF→ON at the very first power on, the default setting is
set point 25℃(77℉), cool mode, auto fan, no timing.
③If it is OFF→ON not at the very first power on, all settings are
the same with the last settings. If any power off, timing function
will be cancelled.
④The ON/OFF button also acts as "ENTER" function during time
and menu settings. When these two settings are finished,
press ON/OFF to save and exit.
(2) MODE Button ( )
①Wireless thermostat performs sequential switching:
"Cool→Fan→Heat→Cool" by each press of MODE
button.
(3) Decreasing Button ( )
①Set point setting: the set point shall decrease by one degree for
each press of this button. The set point shall be lowered in the
order of "32℃→…→17℃→16℃", or " 90℉→…→62℉→61℉".
Decrease Button

IR Wireless Thermostat - User Manual Heat Controller
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When the set point reaches 16℃ or 60℉, it will no longer do
anything by pressing this button.
②For system real time and day settings (the real time or day will
be flashing for prompt). Press this button to decrease time or
day.
③Menu setting: press this button to select parameter.
④Continuous change is realized by pressing and holding of this
button.
(4) Increasing Button ( )
①Set point setting: the set point shall increase by one degree for
each press of this button. The set point shall be higher in the
order of "16℃→17℃→…→32℃" or "61℉→62℉→…→90℉".
When the set point reaches 32℃ or 90℉, it will no longer do
anything by pressing this button.
②For system real time and day settings (the real time or day will
be flashing for prompt). Press this button to increase time or
day.
③Menu setting: press this button to select parameter.
④Continuous change is realized by a press and hold of this
button.
(5) Fan Speed Button ( )
①At the very first power on, the default fan speed is auto fan
speed.
②Under other modes, it shall perform sequential switching in the
order of "Fan Auto → Fan High →Fan Low → Fan Auto".
(6) TIME Button ( )
①
Set timer in 1–12H by pressing TIME button momentarily.
Increase Button

Heat Controller IR Wireless Thermostat - User Manual
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"Turn off" unit time is set after thermostat is turned on and
"turn on" unit time is set after thermostat is turned off.
②Press and hold the TIME button for 5s to set system real time
clock and Day. When minute is flashing, you can now set
minute by or button.
③After finishing minute setting, press TIME button again and
hour will be flashing. You can now set hour by or
button.
④After finishing hour setting, press TIME button again and Day
will be flashing. You can now set day by or
button.
⑤After setting, 5 seconds later thermostat will save it
automatically.
(7) Setting Button ( )
①Press and hold the SET button for 5s to enter menu setting, C1
will display as shown in Fig.3 & Fig.4. This time, you can select
the temperature scale by pressing the decreasing or
increasing button.
Fig.3 C1(displays in Fahrenheit)

IR Wireless Thermostat - User Manual Heat Controller
②Momentarily press the SET button to skip to next setting. The
menu sequence is: C1→C2→C3→C4→C5→C6→C7→C8→C1.
Interfaces of C2–C8 are as below:
!
Warning:
!
Notice:
The mark indicates that any improper operation
may cause casualties or severe injury.
The mark indicates that any improper operation
may cause personnel injury or property damage.
Fig.5 C2(auto sending cycle, unit in minute)
Fig.4 C1(displays in Celsius)
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Heat Controller IR Wireless Thermostat - User Manual
Fig.7 C4(buttons are unlocked)
Fig.8 C4(buttons except ON/OFF are locked)
Fig.6 C3(brightness of backlight)
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IR Wireless Thermostat - User Manual Heat Controller
Fig.11 C6(temperature calibration)
Fig.10 C5(displays room temperature)
Fig.9 C5(displays set point)
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