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• 

Touching the 

 button you can save and finish modifications. The device 

will automatically acknowledge the settings even if no button is touched 

for 1 minute. Then the display of the device returns to the home screen.

• 

If you intend to write a whole new program then cancel the set programs 

as described above or reset the device to factory default as described 

in Chapter 

7.10.

 In this case the device should be set and programmed 

again as described in Chapters 

7.

 and 

8.4.

8.4.5. Program inspection

• 

Touch the   button to move the display of the thermostat to the home 

screen then touch the 

  button.  Syllable(s)  indicating  the  day(s),  the 

symbol of the 

PROG

 

 switching, the

 

 time and the temperature/

humidity value appear on the screen (none of the values is flashing).

• 

Repeatedly touching the   button you can check the values of 

PROG

  , 

PROG

 

 etc. switchings that belong to the respective day(s). 

Using   and 

 buttons you can switch between the days. If during the 

Summary of Contents for COMPUTHERM Q20

Page 1: ...COMPUTHERM Q20 Programmable digital room thermostat Operating Instructions...

Page 2: ...er unit 11 6 Operation of the thermostat that has been put into operation 13 7 Settings 17 7 1 Selecting the operating mode FUNC 17 7 2 Switching on and off of the programmed mode PROGRAM 17 7 3 Selec...

Page 3: ...m of a day to another day or other days 30 8 4 4 Modifying the programs of the device 32 8 4 5 Program inspection 33 8 5 Temporary manual mode until the next program switching 34 8 6 Temporary manual...

Page 4: ...y of boilers air conditioners humidifiers and dehumidifiers in circulation in Hungary It can easily be connected to any gas boiler air conditioner humidifier and dehumidifier with two wire room thermo...

Page 5: ...different temperature in 0 5 C increments and humidity in 1 percent increments can be assigned to every switching times The simultaneous use of several COMPUTHERM room thermostats and one COMPUTHERM Q...

Page 6: ...se in wet chemically aggressive or dusty environments The manufacturer will assume no responsibility for any possible direct or indirect damages or income losses incurring during the use of the device...

Page 7: ...ng that the party holiday program is switched on Economy mode icon Icon showing that cooling is switched on Icon showing that heating is switched on Comfort mode icon Room temperature Battery charge l...

Page 8: ...at are equipped with a thermostatic head adjust it to maximum temperature or replace the thermostatic head of the radiator valve with a manual control knob in the room where the room thermostat is to...

Page 9: ...e tools Remove the serial terminal cover from the inside of the back panel using a small screwdriver The receiver unit controls the boiler or air conditioner through a potentialfree alternating relay...

Page 10: ...e inner cover removed to connect the wires after installation ATTENTION Always consider the loadability of the receiver unit and follow the manufacturer s instructions of the heating or cooling equipm...

Page 11: ...s appliance Icon appearing on the display to indicate low battery voltage warns reliably that the batteries should be replaced only when alkaline batteries are used After the batteries have been inser...

Page 12: ...unit 1 NO and 2 COM close at a temperature below 21 8 C the heating system switches on and open at a temperature above 22 2 C the heating system switches off In cooling mode the relay switches conver...

Page 13: ...on of the thermostat can be tailored to your liking You can enter the setting menu of the thermostat by pressing the button for 2 seconds Then the continuously illuminated time and the flashing Englis...

Page 14: ...ally set Economy mode or comfort mode ON Chapter 7 2 ON Switched on In this case the thermostat is working according to a pre set program or manual mode T UNIT Temperature unit C C F HYSTER Switching...

Page 15: ...sured humidity is higher than the set value then the cooling system switches off A LIGHT Automatic backlight OFF switched off ON ON switched on backlight switches on for 10 seconds after any button ha...

Page 16: ...OFF switched off OFF Chapter 7 7 ON switched on RESET Restoring factory default settings saving the settings and exiting the settings menu after touching the button Chapter 7 8 RES restoring factory d...

Page 17: ...level set in the dehumidifying mode taking the switching sensitivities into account 7 2 Switching on and off of the programmed mode PROGRAM The thermostat can be used in both programmed and non progra...

Page 18: ...ed thereto The smaller this value the more stable is the inner temperature humidity in the room and the comfort improves Switching sensitivity does not affect the heat loss of the room building and va...

Page 19: ...displayed by the thermostat can be modified by maximum 3 0 C 6 0 F compared to the temperature measured by the temperature sensor in increments of 3 0 C 6 0 F or 0 1 C 0 1 F 7 5 Calibration of the hum...

Page 20: ...r on the respective day or on the previous day e g during non heating period The pump protectionfunction only works when the controlled device is in operable condition 7 8 Restoring factory default se...

Page 21: ...ode Chapter 8 4 Touching the button you can switch between the modes When you intend to operate your device temporarily in a way other than the set default mode e g on the occasion of a family gatheri...

Page 22: ...y mode the thermostat provides the economical e g night time temperature humidity corresponding to the set temperature humidity in the vicinity of the place of installation Using the and buttons these...

Page 23: ...ng associated temperature humidity levels The devices can be programmed for a one week period Its operation is automatic repeating the set switchings cyclically every 7 days For each day 1 fixed switc...

Page 24: ...efault setting only makes sense if you need uniform temperature all day For example if you want to maintain a continuous economical temperature e g 16 C on weekdays while you wish to maintain a comfor...

Page 25: ...order to avoid coincidence or overlap of switching times In this case the device pushes forward the respective times so that the min 10 minutes difference always remains If due to time modifications t...

Page 26: ...you can program the device this way as described in Chapter 8 4 2 But keep in mind that when you programmed several days similarly this way you can modify their program only together Therefore if you...

Page 27: ...program for every day of the week it is reasonable to select all days of the week at the same time indicated by simultaneous flashing of syllables MON TUE WED THU FRI SAT and SUN instead of programmi...

Page 28: ...rt time of PROG switching that belongs to the selected day s and the display of the device will flash the time value the default setting is to be set Using and buttons on the front panel of the device...

Page 29: ...offered switching from the default position Then programming of the respective day s is completed and the device immediately offers selection of a new day and programming can be continued from step b...

Page 30: ...PY function may only be used for programming the days of the week separately Touch the button to move the display of the thermostat to the home screen then enter the programming menu by touching the b...

Page 31: ...the day that has been copied previously touch the button to copy the program Then the syllable indicating the day to which you have copied the program also becomes continuously visible and its flashi...

Page 32: ...nd so that during the modification of the time of switching with buttons and you reset the time set previously to factory default or touch the button for 2 seconds Touch the button to cancel respectiv...

Page 33: ...er 7 10 In this case the device should be set and programmed again as described in Chapters 7 and 8 4 8 4 5 Program inspection Touch the button to move the display of the thermostat to the home screen...

Page 34: ...ng the button you can return to the home screen if no button has been touched for 15 seconds the display will automatically return to the home screen 8 5 Temporary manual mode until the next program s...

Page 35: ...to the set program before the switching time touch the button 8 6 Temporary manual mode for 1 to 99 hours party program The party program can be used in any default mode of the thermostat For activat...

Page 36: ...After this time the icon disappears and the device returns to operation according to the mode used before the party mode Touch the button if you wish to return to the previously used mode before the...

Page 37: ...be freely modified with buttons and during the holiday program period During the holiday program the segments indicating the hour on the display alternately show the exact time TIME and the number of...

Page 38: ...r the last button has been touched You can modify the automatic backlight of the thermostat the backlight of the keys and the backlight brightness as described in Chapter 7 10 LOCKING THE CONTROL BUTT...

Page 39: ...teries should be replaced see Chapter 5 2 The exact time should be set again after the batteries have been replaced but the device saves the program that has been loaded as well as the settings even w...

Page 40: ...our website where we collected the problems and questions that most frequently occur while our appliances are being used along with the solutions thereto https www computherm info en faq The vast maj...

Page 41: ...41...

Page 42: ...stablishment of the heating network and apparatuses and fittings needed for division into zones in our publication titled Energy Savings and Comfort which is also available on our website www computhe...

Page 43: ...range 0 to 99 RH in 1 0 increments Temperature measurement accuracy 0 5 C 0 9 F Humidity measurement accuracy 3 RH Temperature calibration range 3 C in 0 1 C increments 6 F in 0 1 F increments Humidi...

Page 44: ...rating temperature 0 c to 48 c Operating humidity 5 to 90 without condesation Protection against environmental impacts IP30 Dimensions 125 x 82x 24 5 mm W x H x D Weight 149 g Temperature and humidity...

Page 45: ...014 53 EU and RoHS 2011 65 EU Manufacturer QUANTRAX Ltd F lem le u 34 Szeged H 6726 Hungary Phone 36 62 424 133 Fax 36 62 424 672 E mail iroda quantrax hu Web www quantrax hu www computherm info Origi...

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