background image

- 6 -

Controller reset
Keep the UP button pressed for a controller to reset itself and dis

-

connect heating device.
Press the ON/OFF button to return to operation.

Protection
To  protect  the  controller  from  unauthorized  access,  press  the 
UP/DOWN button for a longer time.
Activation of the protection is signaled by a padlock symbol on the 
display. Unlocking is done in the same way.

Automatic/manual operation
Longer press of the DOWN button changes the controller mode of 
operation from automatic to manual and vice versa (day time icon 
goes off).
Manual operation - room temperature control is based on the cur

-

rent setting. Use the UP/DOWN buttons to change the temperature.
Automatic operation - the temperature is maintained on the basis of 
the pre-programmed cycles of the controller.

Temperature readout
If the controller is set to operate with two temperature sensors by 
short press of the ON/OFF button, the readout source changes from 
the internal sensor to the external.

Controller operation errors indication
Er1 - damage to internal temperature probe
Er2 - damage of external temperature probe
Er3 - damage to internal and external probe

- 8 -

D161220

Technical data

power supply

230 V AC

current load heating circuit

<16 A

temperature adjustment range

5÷55°C

histeresis

2°C

setting accuracy

1°C

measurement accuracy

±0,1°C

power consumption

1 W

working temperature

0÷65°C

terminal

2.5mm² screw terminals

dimensions
      front 

86×86 mm; D= 22 mm 

      back

6

 27.5 mm

mounting

external temperature sensor 

NTC

sensor dimensions

Ø7

Ø 0; D=

in 

flush mounted 

ingress protection

IP20

Ø60 

; h=25 mm

sensor isolation

PC muff

wire

PC 2×0,34 mm²; l= 3 m

3. 

Remove the cover and the frame of the controller, taking care not 

to damage the electronics of the controller.

4. Connect according to the scheme.
5. Place the bottom part of the controller in the flush-mounted box 

and fix it with the screws.

6. Put the frame back on and press the cover.

- 7 -

Mounting

1. 

Disconnect the power supply from the cir

-

cuit  to  which  the  controller  will  be  con

-

nected.

2.  Using  a  narrow,  flat-blade  driver,  gently 

press the catch (marked with the arrow on 
the  drawing)  to  lock  the  controller 
housing.

Connection scheme

probe

N

L

1

2

3

4

5

6

OUT

N

heater

1/4 - 

output for heater connection

2

L power supply of the controller

3

- N

 power supply of the controller

5/6 - 

output for temperature probe connection

Take special care when installing the controller. Incorrect 
connection may result in electric shock and/or damage to 
the controller and the powered device.

Do not install a device that is damaged or incomplete.

Do not install the device in rooms with high humidity, such 
as bathrooms.

Setting up a weekly operation program:
1. Press the MENU button to enter the programming mode.
2. Use the UP/DOWN buttons to select parameter F8 and confirm 

with the ON/OFF button.

3. Use the UP/DOWN button to select the day of the week: MON-

FRI, Saturday or Sunday (SAT, SUN).

Example: Select MON-FRI and confirm with the ON / OFF button.

4. Use the UP / DOWN buttons to select the time of day.

Example: Select in the morning, confirm with the ON/OFF button.

5. Use the UP/DOWN buttons to set the start time of the "morning" 

time of day.

Example: Select 06:00 (change with increments of 15 minutes), 

confirm with ON/OFF button.

WARNING! The start time of the next period is the end of the 

previous one, so there is no option to set the ending time of the 
given period).

6. Use the UP/DOWN buttons to set the desired temperature for 

this  time  of  day  -  morning.  The  temperature  can  be  changed 
every 1 °C in the range of 5÷55 °C. Confirm with the ON/OFF 
button.

7. Once the temperature value has been confirmed, the program 

automatically returns to step 4, allowing to set the parameters of 
the next time of day.

8.  After  setting  the  start  times  and  temperature  values,  the 

program  will  automatically  switch  to  setting  the  time  for 
Saturday, and then for Sunday. After entering the last parameter 
for  Sunday  and  confirming  it  with  the  ON/OFF  button,  the 
program will return to the selection of parameters F1÷F8.

9. To exit the programming mode press the MENU button or wait 5 

seconds and then the controller automatically returns to normal 
operation.

- 5 -

Summary of Contents for RT-825

Page 1: ...ss of brand Electro thrown in the trash or abandoned innature poseathreattotheenvironmentandhumanhealth TEMPERATURE CONTROLLER RT 825 1 Purpose Functioning The RT 825 temperature controller is designed for direct control of heating devices powered by 230 V with maximum current no higher than16A The controller can operate in one of four operating modes operation with an internal temperature sensor ...

Page 2: ...ntifreeze mode the heating device willbeswitchedon whetherthecontrollerisonoroff Timer modeoperation The timer function operates in a cyclic mode starting from switching on the controller for the set time parameter F1 and then the controller will be switched off for the set time parameter F2 etc on all days of the week The activation time of the controller starts when the number of hours is accept...

Page 3: ...eratingmodeforthetemperaturesensors 1 operationwithaninternaltemperaturesensor 2 operationwithanexternaltemperaturesensor included 3 operationwithtwotemperaturesensors defaultsetting F4 setthetime week hour minute F5 set the upper threshold of the temperature protection in the range of 40 C to 70 C with increments of 1 C factory setting 50 C It works only in the mode of operation with two temperat...

Page 4: ...gram is divided into four parts markedwithicons morning forenoon leavingthehouse afternoon evening comingback night It is necessary to set the start time for each of these periods the hour of the end of the given period is the starting time of the next Thestarttimesforeachtimeofthedayshouldbesetseparatelyfor business days Saturdays and Sundays Temperature value is programmedforeachtimeofday Thefol...

Page 5: ...ne so there is no option to set the ending time of the givenperiod 6 Use the UP DOWN buttons to set the desired temperature for this time of day morning The temperature can be changed every 1 C in the range of 5 55 C Confirm with the ON OFF button 7 Once the temperature value has been confirmed the program automatically returns to step 4 allowing to set the parameters of thenexttimeofday 8 After s...

Page 6: ...oller mode of operation from automatic to manual and vice versa day time icon goesoff Manual operation room temperature control is based on the cur rentsetting UsetheUP DOWNbuttonstochangethetemperature Automaticoperation thetemperatureismaintainedonthebasisof thepre programmedcyclesofthecontroller Temperaturereadout If the controller is set to operate with two temperature sensors by short press o...

Page 7: ...scheme probe N L 1 2 3 4 5 6 OUT N heater 1 4 outputforheaterconnection 2 Lpowersupplyofthecontroller 3 Npowersupplyofthecontroller 5 6 outputfortemperatureprobeconnection Take special care when installing the controller Incorrect connection may result in electric shock and or damage to thecontrollerandthepowereddevice Donotinstalladevicethatisdamagedorincomplete Do not install the device in rooms...

Page 8: ...ns front 86 86 mm D 22 mm back 6 27 5 mm mounting external temperature sensor NTC sensor dimensions Ø7 Ø 0 D in flush mounted ingress protection IP20 Ø60 h 25 mm sensor isolation PC muff wire PC 2 0 34 mm l 3 m 3 Remove the cover and the frame of the controller taking care not todamagetheelectronicsofthecontroller 4 Connectaccordingtothescheme 5 Place the bottom part of the controller in the flush...

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