background image

L

L

COM

Regula

tor

ER

T20T

X

NO

N

N

L

L

M

N

N

COM

NO

lub

Odbiornik R

XR

T505

STYKI W KOTLE 

DO PODŁĄCZENIA

REGULATORA ON - OFF 

(WG INSTRUKCJI KOTŁA)

Odbiornik R

XR

T505

MAX

16 (5) A

5

10

15

20

25

30

Regula

tor

ER

T20T

X

5

10

15

20

25

30

L

L

COM

Regula

tor

ER

T20T

X

NO

N

N

L

L

M

N

N

COM

NO

lub

Odbiornik R

XR

T505

STYKI W KOTLE 

DO PODŁĄCZENIA

REGULATORA ON - OFF 

(WG INSTRUKCJI KOTŁA)

Odbiornik R

XR

T505

MAX

16 (5) A

5

10

15

20

25

30

Regula

tor

ER

T20T

X

5

10

15

20

25

30

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

NOTE: 

Always isolate the AC Mains supply before installing  

or working on any components that require 230 V AC 50Hz supply.  

The assembly should be carried out by a person having appropriate 

electric permissions. Incorrect wires connection can damage 

 

the device.

Communication code change is done by DIP switches (numbered 1-5). 

Set the DIP switches on the receiver in random positions.

To check if the devices have been paired correctly, set the 

thermostat knob to the maximum. 

Red

 led diode will light up 

on the thermostat and heating signal will be sent. If the 

green

 

LED lights up on the receiver it means that the devices are paired 

correctly. 

Set the receiver’s switch to the ON position - 

red

 LED diode on the 

receiver will start to flash. 

Press and hold for 3 seconds SYNC button located on the back of the 

thermostat. Thermostat’s 

red

 LED diode will start flashing.

If the LED diode on the receiver stops flashing, it means that the 

pairing process was successful.

To finish the pairing process, press and hold SYNC button again.  

LED diode on the thermostat will stop flashing.

The ERT20RF thermostat is factory-adjusted to work with a heating device 

(heating mode), however, there is a possibility to switch it to cooling mode, 

so it can work also with a cooling device. 

To change heating/cooling mode, change the position of the jumper on the 

back of the thermostat, as shown in the figure below:

Heating 

mode

Cooling 

mode

Heating/cooling mode changing

Wiring diagram

COMMUNICATION CODE CHANGE

 

NOTE:

 To avoid interference caused by other wireless devices, it is 

strongly recommended to change the communication code for other 

than factory.

1

2

3

4

5

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

ON

OFF

NO

NO

COM

COM

L

L

N

N

ON

5

10

15

20

25

30

SY

NC

ER

T20T

X

T40

IP30

868MH

z

3V

              

  A

2

3

3 sec.

3 sec.

ER

T20T

X

 Thermosta

t

RXR

T505 

Rec

eiv

er

BOILER CONTACTS FOR 

ON-OFF THERMOSTAT 

(ACCORDING TO THE 

BOILER  INSTRUCTION)

ER

T20T

X

 Thermosta

t

RXR

T505 

Rec

eiv

er

or

Reviews: