background image

 

Check whether the power supply for the installation is correct (24VAC or 

1. 

DC) and turn the power off. 

Remove the plug from the back of the Timer-Thermostat. Connect the 2 

2. 

thermostat wires to the plug and replace the plug back onto the connector. 

If applicable, check whether the thermostat wires are connected to the 

3. 

heater clamps used for the On/Off control (option 1 in the schematics 

below). 

Mount the Timer-Thermostat using 2 screws of approx. 30 cm via the but-

4. 

ton openings and turn on the power. 

The thermostat will start up and will emit an acoustic signal. 

5. 

The flashing % symbol indicates whether any pre-programmed clock set-

6. 

tings have been lost. E.g. as a result of a power failure. The % symbol will 

disappear by programming the thermostat clock (see later on in this guide) 

or - if you do not want to use the clock - by resetting the thermostat. You 

can do this by shorting the two contact points to the right behind the right 

button, e.g. using a small flathead screwdriver.

ATTENTION: 

When the device does not work correctly, it may be necessary 

to attach the resistor included to the heater’s clamp strip. Please consult the 

manual of your heater and connect the Timer-Thermostat according to the sche-

matics above (option 2).

Please read this guide thoroughly and write down all the values you need to fill in 

before starting programming.

ATTENTION

: The ICY1810 has already been pre-programmed. This programme 

cannot be altered. 

If the buttons are not touched for approx. 10s, the Timer-Thermostat will auto-

matically select the next function.

Terminology used in this guide:

COMFORT TEMPERATURE

:  

temperature maintained during the day and  

 

 

 

when user is present at night.

DORMANT TEMPERATURE

 temperature maintained at night and when  

 

 

 

user is absent.

ANTI-FROST TEMPERATURE

:  temperature maintained when the Timer- 

 

 

 

Thermostat has not been used for a longer  

 

 

 

period of time, e.g. 12 hours.

Keep the left –(minus)-button pressed for 10s, until the display reads ‘P1’. 

1. 

Release the button. The display will now read ‘0’. 

The Timer-Thermostat is now in programming mode and will request the 

2. 

first 2 digits of your PIN code.    

Use the right +(plus)-button and left –(minus)-button to enter the correct 

3. 

number and wait approx. 10s after you’re finished. 

The display will now read ‘P2’ and after 2s it will read ‘0’. The Timer-Ther-

4. 

mostat will now request the second 2 digits of your PIN code. Now repeat 

step 3. 

If the PIN code is correct, continue with step 6. If the PIN code is incorrect, 

5. 

the Timer-Thermostat will beep and leave the programming mode.  

The display will now read ‘t1’ and after 2s the pre-programmed ANTI-

6. 

FROST TEMPERATURE will appear (e.g. ‘14’ °C). You can change the 

value by repeating step 3. 

The display will now read ‘t2’ and after 2s the pre-programmed MAXIMUM 

7. 

COMFORT TEMPERATURE will appear (e.g. ‘24’ °C). You can change the 

value by repeating step 3. 

The display will now read ‘t3’ and after 2s the pre-programmed COMFORT 

8. 

PERIOD will appear (e.g. ‘12’ x 10 minutes = 2 hours). You can change the 

value by repeating step 3. 

The display will now read ‘t4’ and after 2s the pre-programmed DORMANT 

9. 

TEMPERATURE will appear (e.g. ‘17’ °C). You can change the value by 

repeating step 3. 

The display will now read ‘t5’ and after 2s the pre-programmed DORMANT 

10. 

PERIOD will appear (e.g. ‘12’ hours). You can change the value by repeat-

ing step 3. 

 

Continue with step 15 for the ICY1830/35/50 Timer-Thermostat. 

Continue with step 11 for the ICY1840/45.

 

The display will now read ‘t6’ and after 2s the HOURS of START COM-

11. 

FORT will appear (e.g. ‘10’ o’clock). When the clock is not being used, the 

display will now read ‘--’. You can change the value by repeating step 3.  

By using the –(minus)-button to go to the minimum ‘--’, the clock will be 

disabled.  When the clock is disabled, continue with step 15. When the 

clock is enabled, continue with step 12.   

The display will now read ‘t7’ and after 2s the MINUTES of START 

12. 

COMFORT will appear (e.g. ‘58’ minutes). You can change the value by 

repeating step 3. 

The display will now read ‘t8’ and after 2s the HOURS of REAL TIME will 

13. 

appear (e.g. ‘7’ o’clock). You can change the value by repeating step 3. 

The display will now read ‘t9’ and after 2s the MINUTES of REAL TIME will 

14. 

appear (e.g. ‘45’ minutes). You can change the value by repeating step 3. 

The display will now read ‘P1’ and after 2s the first 2 digits of the pre-

15. 

programmed PIN code will appear (e.g. ‘11’). You can change the value by 

repeating step 3. 

The display will now read ‘P2’ and after 2s the second 2 digits of the pre-

16. 

programmed PIN code will appear (e.g. ‘12’). You can change the value by 

repeating step 3.

The Timer-Thermostat will then automatically store any changes in the memory 

and will beep and leave the programming mode. 

Installation

ICY

HEATER

ICY

HEATER

resistance

ICY1830/35/40/45/50 Programming guide

 

      option 1      

       option 2

ICY

18xx

 

T i m e r - T h e r m o s t a t s

User Manual

a n d   i n s t a l l a t i o n   g u i d e

I.C.Y. B.V.

Postbus 193, 8530 AD Lemmer, The Netherlands

T.:0031 514 563424, Fax.: 0031 514 564252

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© 2009 ICY B.V.

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