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Touchscreen Thermostat Owner & User Manual   

Your new air conditioning system thermostat has been built using the best components 
and design philosophy currently available. As a result, if properly installed A4100 
thermostat will provide you with many years of trouble free comfort.   
By taking the time to read and understand these simple instructions you can take 
advantage of many of the capabilities that are offered in this premium product.   

Introduction 

The A4100 thermostat is able to be used as a residential programmable thermostat, a 
commercial programmable thermostat or as a simple to use manual thermostat. Your 
installer will have set these modes to best suit your individual needs.   
For clarity, this user manual is broken into the following main sections.   
Residential Programmable Mode

.

   

Commercial Programmable Mode.   
Manual Mode.   
common Functions to all modes.   

Please Note:   

The A4100thermostat can be configured by your installer to a large variety of 
configurations and functions so that your A4100thermostat is perfect for you and your 
individual needs. As such, this manual may describe a function or feature not active on 
your thermostat.   

Clean Thermostat Screen 

The thermostat has a touch screen interaction. Follow these steps to clean the screen 
without making thermostat changes: 
1.Press the Screen key. Thermostat locks out all touch keys for 30 seconds to allow for 
cleaning. 
2. To cancel the CLEAN SCREEN early, press the Cancel key. 

Setting the clock   
 
 
 
 
 
 
 
 
 
 

The A4100 thermostat is fitted with a real time clock. This clock is used by the A4100 
thermostat for the programming functions as described below.   
It is essential that the clock time and day are set accurately if you require your 
programmed events to start on time.   
To set the clock, tap the “CLOCK key. The LCD will show the Hours Digit flashing. Use 
the up or down key to adjust the hours to the correct time (note the AM / PM symbol). 
Tap the “CLOCK” key again and now the minute’s digits will flash. Adjust this value using 
the up or down key to show the correct minute. Tap the “CLOCK” key again and now the 
weekday flashes, again use the up or down key to set this value to the correct day of the 
week. Tap the “DONE” key again to exit the clock set function.   
Your clock is now set.   

Residential Programmable Mode 

Programming your 4 daily events   

 

 

 

 

 

 

 

 

 

 

The A4100 is an individual 7 day

 and 5+2 programmable thermostat. For each day of 

the week you are able to have 4 timed set temperature changes or programmed events. 
For clarity these events are conveniently named “WAKE”, “DAY”, “EVENING”&“SLEEP”.   
The number “WAKE” event may be used to set the temperatures of your home that you 
would like to wake to.   
The number “DAY” event is typically used to set the temperatures you wish your home to 
maintain whilst you are away at work.   
The number “EVENING” event is often used to set the temperature you wish to be 
greeted with upon returning home at the end of the day.   
The number “SLEEP” event can be used to set a comfortable and energy efficient 
temperature while you sleep. You are permitted to have every event occur at a different 
time of the day and set a different heating and cooling set temperature for each of the 4 
daily events. You are also able to set a heating set point temperature between Heating 
OFF and 38 degrees Celsius (100 F). You are able to set a cooling temperature between 
zero degrees Celsius (32F) and Cooling OFF (provided your installer has not set control 
limits that restrict this range of adjustment).   
Remember, each of the 4 programmed event set temperatures will hold the home 
temperature until the next event time arrives where the new event set temperature will 
then be used. So The “WAKE” event set temperature will be the temperature of your 
home until the “DAY” event time arrives, then The DAY” event set temperature will be the 
temperature of your home until the “EVENING” event time arrives, then The “EVENING” 
event set temperature will be the temperature of your home until the “SLEEP” event time 
arrives, then The “SLEEP” event set temperature will be the temperature of your home 
until the next days “WAKE” event time arrives.   
Programming your A4100 thermostat or setting these daily events is no more 
complicated than setting the clock as described previously. The same keys are used in 
the same sequence.The LCD shows only relevant information for the event being 
adjusted thus reducing possible errors that may be caused by having confusing 
information displayed on the LCD.   
To enter the program mode. Press “SCHED” key. The display will change to show the 
period day and 4-period. Using the PROG DAY keys adjust the day to the day you wish 
to start programming or to the day you wish to edit an existing event or program.   
Top the  “WAKE”, “DAY”, “EVENING”&“SLEEP” botton to select period. using the 
“POOG DAY”to select workday or weekend or individual,using the up or down keys to 
make changes.use “DONE” key to exit the program set function 

Temperature Override   

Holds temperature temporarily until the next   
scheduled period time or until the time the user   
sets. 
1.Press Up or Down arrow next to the temperature 
you want to adjust.   
Hold Temperature Until time appears on the screen. 
The Hold Temperature Until time defaults to the   
start time of the next scheduled period. 
2. Press Up or Down arrow next to the Time key to set desired time for the thermostat to 
resume 
3. Press the Cancel or Sched key to cancel Override Temperature Until and resume 
schedule. 
4. Press Done key. 

IMPORTANT 

The current day of the week should already be set correctly. If not, see Installer Setup to 

set the day. 

Permanent Program Hold. 

Tap the “HOLD” key to override the A4100   
programmed time schedule and hold the currently 
set temperature. This set temperature will be 
maintained until released by tapping the “CANCEL”   
key. The LCD shows the word “P” 
to confirm the A4100 time schedule has been held. 
If desired, while the program is held the current   
set temperature can be adjusted simply by   
pressing the up or down keys. The A4100 thermostat display will change to show the 
word “SET”, and the active set point for the current mode. (Heating or Cooling) as you 
hold the up or down keys the current set point will change. To Review the set 
Temperature.  

Simply tap the up or down key to turn the LCD backlight on, tap the up or down key 
again and now the LCD will change and display the currently set temperature(s).   

Vacation Hold   

Changes temperature setting for a designated number of days.   
1

Press the Up and Down arrow keys to set the 

desired temperature while away on vacation.   
Notice that —Override Until“ time is shown on the   
screen. (This is the time the Vacation Hold   
override expires after the number of days ends.)   
2

Press Hold key twice. Screen shows — 

“Override Until“ one day.   
3

Press Up and Down arrow keys to change the   

number of Days you desire thermostat to override 
the schedule.   
NOTE: Days Up and Down arrows appear for approximately seven seconds. Pressing 
just below Hold Temperature Until on the screen allows the Days Up and Down arrows to 
reappear.  
4. To cancel the Vacation Hold override early, press the Cancel key. 
NOTE:When the number of days of Vacation Hold expires, the screen shows Following 
Schedule to indicate that Vacation Hold has ended. 

Commercial Programmable Mode 

Programming  

your 2 daily events Commercial programming of the A4100 has been designed to be an 
extremely simple and logical process. The A4100 permits you to program a DAY time for 
the air conditioning system, then a Stop time for each day of the week. When the A4100 
is displaying “DAY” in the LCD, it will maintain whatever set point has been chosen. 
When the A4100 is displaying “EVENING” in the LCD, it will be OFF (or maintain an 
energy efficient maintenance temperature if set by the installer).   
To enter the program mode. Press the “SCHED” key. To enter the program mode. The 
display will change to show the period day and 2-period.Use POOG DAY botton to selsct 
Programming Day. Use DAY and EVENING keys to select period. Using the up or down 
keys set the minute to the time you wish the building air conditioning system to “DAY” for 
the currently elected day.   

After hours Run Timer For convenience 

the installer may have set the after hours run function. This f

unction permits you to 

temporarily turn the A4100 on for an installer set period of time, at the conclusion of 
which the A4100 will automatically turn back off again. To activate the after hours run 

timer, simply tap the “HOLD” key. (Or if fitted, the “After Hours” run key fitted to the 
remote room temperature sensor.) The LCD will show the word “TIMER” flashing in the 
LCD. Tapping the “CANCEL” key (or after hours key on the remote sensor) again will 
cancel any unexpired part of the timer and the A4100 will switch back off. To Review the 
set Temperature. Simply tap the up or down key to turn the LCD backlight on, tap the up 
or down key the LCD will change and display the currently set temperature(s).   

Manual Mode   

Setting your desired temperature Simply press the up or down keys. The A4100 
hermostat display will change to show the word “SET”, and the active set point for the 
current mode. (Heating or Cooling) as you hold the up or down keys the current set point 
will change. If Auto mode is selected, after adjusting the Heat set point wait without 
touching a key for 3 seconds for the A4100 thermostat display to change to show “Cool” 
and “SET” and your current cooling set temperature. If desired change this value with 
the up or down keys. Use “DONE” key exit this menu. Your new set temperatures will be 
maintained.  

Switching between day and evening set points   

The A4100 will keep two sets of temperature in its memory (if enabled by your installer), 
typically used for day and night temperatures. This provides you with a quick and simple 
way to change between your day and evening time set temperatures. Simply tap the 
“SCHED” key to switch between Day & Evening Modes. Set the Day and separate 
Evening temperatures as described previously.   

Turning your thermostat OFF   

To turn your A4100 Off, simply tap the “SYSTEM” key until the LCD shows the word 
“OFF”.  

To Review the set Temperature.   

Simply tap the up or down key to turn the LCD backlight on and now the LCD will change 
and display the currently set temperature(s).   

Common Functions 

The Keys Explained   

System key 

Tap this key to cycle the A4100 thermostat through the available modes, Heat only, Cool 
only, Auto season change over mode, Emergency Heat (if fitted), and OFF. (Note – Not 
all modes may be active on your A4100)   
NOTE, the installer may have activated the Anti freeze function where your heating 
system will turn on whenever the room temperature falls below 5c (41f), regardless of 
the currently selected mode or whether the A4100 is On or Off.   

Hold key 

Commercial Programmable Mode.   
This key initiates the after hours run timer where, for an installer programmed period the 
A4100 will replace the stop program temperatures and temporarily use the start program 
temperatures to maintain the building temperatures. 
Residential Programmable Mode.   
The “HOLD key is used to override the current programs time schedule and to hold the 
currently set temperature indefinitely. This set temperature will be maintained until 
released the held temperature by tapping the “CANCEL” key. Timer will be displayed in 
the LCD to confirm this function is active.   

Tempature up key 

Use tempature up key to increase the desired room temperature for the heating or 
cooling modes, or increase a “value” in programming modes. Also used to force override 
the preprogrammed temperatures and temporarily replace them with a new higher set 
temperature.  

Tempature down key 

Use tempature down key to decrease the desired room temperature for heating or 
cooling modes, or decrease a “value” in programming modes. Also used to force 
override the pre programmed temperatures and temporarily replace them with a new 

lower set temperature.   
Clock key 
Tap the “CLOCK” key to begin setting the clock.   
Sched key 
Press the “SCHED” key to begin programming your daily events. In Manual mode: Tap 
the “

SCHED

” key to switch between Day & Night modes..   

Fan key 

Fan Single Speed Fan systems . Tap this 

key to cycle between Continuous Fan (Fan 

ON) and Auto Fan. Three Speed Fan systems – Tap this key to cycle between the 7 
available fan modes being Low speed, Medium speed, High speed & Auto Fan speeds in 
auto fan mode and then Low speed, Medium speed, High speed in Fan ON mode. If the 
A4100is OFF, tapping the “FAN” key will turn the fan ON or OFF as desired. If your 
system has 3 fan speeds these can also be selected by tapping the “FAN” key.   

Wake Day Evening Sleep key 

Tap those key can select period in programming mode. 

Reset key 

Tap Reset key clean filter count. 

Prog Day key 

Tap this key to select project day in programming mode. 

Cancel key 

Tap this key to Cancel override mode and setting clock mode.and etc. 

Done key 

Tap this key to finish setting. 

Control Modes   

Heat Only Mode   

The A4100 thermostat will turn on the Heating when the room temperature falls below 
the Heat set point temperature. In Heat only mode the A4100thermostat will NOT bring 
on the Cooling regardless of the room temperature and the Cooling Set point 
temperature. In Heat only mode, only the word “Heat” will be displayed in the LCD. 
When your A4100is calling for heat, the word “Heating” will be displayed in the LCD. If 
the word “Heat” is flashing in the LCD the A4100is performing a safety anti cycle delay 

prior to restating the heating.   

E. Heat Mode 

 

The A4100 thermostat will only use your emergency heating device to maintain your 
desired heating temperature. This method of heating can be quite expensive therefore it 
is not recommended to use emergency heat mode unless it is essential. When your air 
conditioning system is heating using emergency heat, the word “E.Heat” in the LCD will 
change to the word “E.Heating”.   

Cool Only Mode   

The A4100 thermostat will turn on the Cooling when the room temperature rises above 
the Cool set point. In Cool only mode the A4100thermostat will NOT bring on the Heating 
regardless of the room temperature and Heating set point temperature. In Cool only 
mode, only the word “Cool” will be displayed in the LCD. When your air conditioning 
system is cooling, the word “Cool” in the LCD will change to the word “Cooling”. If the 
word “Cool” is flashing in the LCD the A4100is performing a safety anti cycle delay 

prior to restating the Cooling. 

Auto

change Over Mode 

 

The A4100 thermostat will turn on the Heating if the room temperature falls below the 
Heat Set point temperature and the Cooling if the room temperature rises above the 
Cool Set point. This is the recommended mode as it provides automatic control of the air 
conditioning system to maintain the desired room temperature. Auto changeover mode 
is indicated by both the words “Heat” & “Cool” in the LCD. If the word “Heat” or “Cool” is 
flashing in the LCD the A4100is performing a safety anti cycle delay prior to restating 

the air conditioning system.   

Fan Functions Explained 

Auto Fan Mode

 

If the user has selected Auto Fan mode with the “FAN” key the indoor fan will turn on 
when the heating or cooling turns on, and off again once the heating or cooling turns off. 
To conserve energy your fan may continue to run monetarily after the heating or cooling 
has stopped to extract all the warm or cool air still remaining in he air condition system 
and bring that conditioned air into the building. 

Fan On Mode 

Manual Thermostat Mode   

Your fan will run continuously.   

Residential Programmable Mode 

By selecting “Fan On” or continuous fan mode the A4100 thermostat indoor fan “may” 
operate continuously between “WAKE” programs and the “SLEEP” programs and then 
turn on and off as required with heating and cooling outside of those programmed 
events.  

Commercial Programmable Mode 

By selecting “Fan On” or continuous fan mode the A4100 thermostat indoor fan “may” 
operate continuously between “DAY” programs and the “EVENING” programs and then 
turn on and off as required with heating and cooling outside of those programmed 
events. 
 
Please Note – Your installer may have activated some of the many advanced indoor fan 
management capabilities of the A4100 thermostat that work in partnership with the Fan 
On Mode. This may result in the fan operating differently than described above. If you 
find this to be the case and un desirable, please contact your authorised service agent 

for advice on altering the function.   

Fan Speeds Single Fan Speed   

If your air conditioning system has one fan speed,   
your A4100 ther

mostat will display the fan information 

shown on the picture to the left The

 words “High”, 

“Med” or “Low” will be absent from the LCD. Tapping 
the “FAN” key with permit you to select either   
“Fan On mode” or “Auto Fan mode” as described   
above.  

Three Fan Speed   

If your air conditioning system is fitted with 3 fan 
speeds your A4100 t

hermostat will display the fan 

speeds as shown on the picturet to the left.

   

Tapping the “FAN” key will step the fan speed   
selection through “Low”, then “Med(ium)”, then “High” 
fan and Auto fan speed(indicated by all three fan   
speeds being shown on the LCD)in auto fan mode,   
the “Low” “Med”(ium) and “High” in Fan On mode.   
If auto fan speed has been selected the A4100   
thermostat will indicate the automatically selected fan speed by flashing in appropriate 
word in the LCD.   
If Auto Fan Speed has been selected your A4100thermostat will automatically select the 
most appropriate fan speed based on the difference between the room and set 
temperatures. 
LCD Explained   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Padlock Symbol. 

Whenever this symbol is show, a control limit has been reached a key or a 
function has been locked out. 

 

“Spanner” Icon. 

If you see a spanner ICON flashing on your LCD, the installer has left your 
thermostat in “Commissioning mode” Although your thermostat will operate 
your heating and cooling system whilst in “commissioning mode”, all active 
safety and energy conservations delays have been disabled. It is therefore 
HIGHLY recommended that you contact your installer and request that the 
installer mode be disabled.   

TEXT “Locked”.   

The temperature of the outside air can initiate or prevent certain functions within the 
A4100 thermostat control logic. If such a function has been prevented based on the 
outside air temperature, the word “LOCKED” appears. These functions will automatically 
“unlock” once the outside air temperature becomes favourable.   

TEXT “RENEW FILTER”.   

When the “RENEW FILTER” show LCD display,it reminder to you to clean or replace 
your return air filter. Once you have cleaned or replaced your return air filter PRESS  
RESET keys. The “RENEW FILTER”will disappear and the filter counter will reset back 
to 000 hours. 

TEXT “RECO”. 

If the A4100 Adaptive Recovery mode is active, the A4100 will pre warm or pre cool 

your building to ensure your set temperatures are reached by your scheduled event start 
time. Whenever the A4100 is performing a pre warming/cooling the word “

Recovery” 

will be sown on the LCD.   

Note: Your A4100 thermostat is capable of many advanced control 
capabilities, designed to both save energy and improve comfort levels. If 
any part of the A4100display is flashing during normal use, a safety, energy 
management or program delay/override is in progress. This is normal and is 
no cause for concern.   

CLOCK

 

MON

DONE

PM

SCHED

HOLD

CLOCK

SCREEN

EDIT

WAKE

DAY

EVENING SLEEP

DAY

PROG

 

MON

  

TUE

  

WED

  

THU

  

FRI

RESET

DONE

WAKE

DAY

EVENING

SYSTEM

.

COOL

 

MON

  

TUE

  

WED

  

THU

  

FRI

PM

DONE

DAY

PROG

SLEEP

CANCEL

FAN ON

Room

SCHED

HOLD

CLOCK

SCREEN

SYSTEM

.

COOL

FAN

 

MON

MED

PM

Permanent Override 

Cool On

CANCEL

FAN ON

Room

SCHED

CLOCK

SCREEN

SYSTEM

.

COOL

FAN

 

MON

MED

Cool On

Override Until

DAYS

CANCEL

FAN ON

Room

SCHED

HOLD

CLOCK

SCREEN

DAY

SYSTEM

.

COOL

FAN

 

MON

MED

PM

Cool On

Override Until

CLOCK

 

MON

DONE

PM

SCHED

CLOCK

SCREEN

SYSTEM

.

COOL

FAN

 

MON

MED

Cool On

PM

HOLD

DAY

Running As SCHED

FAN ON

Room

FAN ON

Room

SCHED

CLOCK

SCREEN

SYSTEM

.

COOL

FAN

 

MON

Cool On

PM

HOLD

DAY

Running As SCHED

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