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be  shown  on  the  bottom  of  the  screen             
as  well  as  the  initial  value  30.0  ºC.  By 
pressing the key       we can change this 
temperature  between  the  lower      limit             
and the value of 30.0 ºC. By pressing the 
key       and then immediately the      key       
the lower section of the screen shows the 
message            (Low Temperature  Limit)  as 
well  as  the  initial  temperature  of  6.0  ºC. 
With the       key we can adjust the value 
between    6.0  ºC  and  the  value  of  the 
upper  limit.  The  two  limits  define  a 
temperature area that can be used by the 
user  to  enter  the  desired  temperature. 
The  selection  of  the  limits  influences  the 
manual  adjustment  of  the  temperature 
and  is  independent  from  the  operating 
mode  of  the  unit  (manual,  daily  weekly) 
and  does  not  have  any  influence  on  the 
programs for daily or weekly operation.

10.OTHER  MENU  SETTINGS 

(the 

thermostat is in the OFF state).

All  the  menu  settings  that  follow  can  be 
changed  by  using  the  same  method  as 
described  in  the  previous  chapters.  After 
entering  the  MENU  use  the              key  to 
select the required setting.  The messages 
are  shown  in  the  bottom  section  of  the 
screen like this:

A.          (Mode) OPERATION MODE.

One  of  three  operation  modes  can  be 
selected:      
                 (User) Manual mode (the symbol 

ΜΑΝ

.    is  shown  on  the  top  right  of  the 

screen).
               (Day) daily operation   (the symbol   

DAY 

is shown on the top right of the screen.

 

                        

.                    (7  Days)  weekly  program  (the 
symbol 

WΕΕK

 is shown on the top right of 

the screen).
The factory default is

Β.              (Unit) TEMPERATURE UNIT.

The option are:                 or               (Degree 
Celsius  ή  Degree  Fahrenheit)  and  regard 
the display of the temperature in ºC or ºF. 
Depending on the selection, the symbol ºC 
or ºF are shown on the center right of the 
screen.

C .       ( B a c k   L i g h t )   S C R E E N  
ILLUMINATION.

With this setting we can turn off the screen 

illumination  in  order  to  conserve  battery 
energy.  If          (ΟΝ)  is  selected  then  the 
screen illumination will be activated every 
time a key is pressed. If               is selected 
then  the  screen  illumination  will  be 
deactivated
The factory default is       .

D .       ( L E D )   B U R N E R   O U T P U T  
INDICATOR.

This  setting  can  deactivate  the  burner 
output indicator in order to conserve battery 
energy..  If           (ON) is selected then when 
the burner output is active the indicator will 
briefly blink every second so the user has a 
knowledge  of  the  state  of  the  thermostat 
from a distance..  If         (OFF) is selected 

then the indicator is deactivated.

Ε.               (Time Out) TEMPORARY TIME 
FOR MANUAL OPERATION.

With this setting we can determine the time 
period  for  which  the  manual  temperature 
adjustment is valid. When the thermostat is 
running a daily or weekly program and we 
press  the  keys            or              then  the 
thermostat enters briefly the manual mode 
for a time period that is determined by the 
setting          . The value of this setting can 
be  from  3  to  10  hours  after  which  normal 
program  execution  is  continued.    The 
factory default is 3 hours.

F.                   (Differential) DIFFERENTIAL 
SETTING.

This setting determines the 

” temperature 

w i n d o w ”

  b e t w e e n   a c t i v a t i o n   a n d  

deactivation  of  the  burner  output.  For 
example, if the thermostat is set to heating 
and the room temperature is set to 23.0 °C 
then with a differential of 0.5 °C the output to 
the  burner  will  be  deactivated  at  23.0  °C 
and  will  be  reactivated  at  22.5  °C.  If  the 
device  is  set  to  cooling  mode  then  the 
output will be deactivated at 23.0 °C and will 
be  reactivated  at  23.5  °C.  The  differential 
value can be set between   0.2 °C and 4.0 
°C.
The factory default value is   0.2 °C.

G.              (Heat/Cold).  SELECTING 
HEATING -COOLING MODE.

This setting determines the operation mode 
of the thermostat which can be heating or 
cooling. By selecting             the device can 

940821001_09_001

MENU

ENTER

ESC

MENU

ENTER

Summary of Contents for BS-821/KIT

Page 1: ...819 T BATTERYOPERATEDWIRELESSPROGRAMMABLECHRONO THERMOSTAT WITHCOOLINGANDHEATINGFUNCTION BOILEROUTPUT BATTERYOPERATEDWIRELESSPROGRAMMABLECHRONO THERMOSTAT WITHCOOLINGANDHEATINGFUNCTION BOILEROUTPUT Th...

Page 2: ...ily programming example page 7 Weekly programming example page 8 Wireless communication settings page 8 communication errors page 9 Hour and message display Temperature and message display Temperature...

Page 3: ...e pressed simultaneously for 3 first the key and then the the screen will show the message and the keypad is locked Page 3 from 11 GENERAL When the plastic battery separator is remove the unit is auto...

Page 4: ...since the end time is the start time of the next program For example if we require a temperature of 23 0 C from 14 00 to18 00 in program 1 we will set the start time 14 00 at 23 0 C and the start time...

Page 5: ...his setting we can turn off the screen illumination in order to conserve battery energy If is selected then the screen illumination will be activated every time a key is pressed If is selected then th...

Page 6: ...erate The battery life time has been design to be approximately 2 years Factors that influence the battery life are prolong use of the keyboard with the backlight active increased temperature and humi...

Page 7: ...e blinking 4 Press the key and the starts to blink With the keys and we select the operation mode Day daily program 5 Press the key and we return to the previous screen with the blinking 6 Press the k...

Page 8: ...the key The weekly program will start to execute as defined In order for the program to execute correctly make sure you have programmed the device clock with the correct time WIRELESS CONNECTION SETTI...

Page 9: ...blink The interruption of the mains voltage causes the interruption of communication between the two devices When the voltage is restored the peripheral device receiver activates the outputs according...

Page 10: ...sure and the device is ready to operate Fig 4 POWER STATUS indicator N L 230V Boiler indicator Programming button 1 Boiler BS 821 R Burner Fig 5 A B Burner indicator To install the BS 821 R remove the...

Page 11: ...returned goods and to or not charge the buyer depending on the reason of defection Olympia Electronics reserves the right to charge or not the buyer the transportation cost HEAD OFFICE 72nd km O N R T...

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