ELTHERM AT8
Contents
1. Supply voltage 3 x 1 5V LR6 Expired time of batteries is approximately 2 years Output anes relay SPDT Relay rating 2 as 5 2 A 250VAC Hysteresis of thermostat 0 5K Montage ee bottom part of thermostat on the wall upper part with notches Connection 9 wire 3 x 0 75 mm Ambient temperature 0 C 50 C Adjustable temperature range 5 C 30 C FIOUSING 3 riter time eae r plastic material Protection degree zs P 20 Dimensions 80x150x42mm high x width x depth WEIGH s erro rere i 0 25 kg 11 ELTHERM AT8 FACTORY SETTINGS HEATING LEVEL PROS 38t HIGHER O LOWER EBEN DAY S 1 Higher 06 00 Monday Friday pO Lower 22 00 Monday Friday FF Higher 07 00 Saturday Sunday 4 O amp Lowe 23 00 Saturday Sunday Program switch 1 heating on higher level at 06 00 Monday thru Friday Program switch 2 heating on lower level at 22 00 Monday thru Friday Program switch 3 heating on higher level at 07 00 Saturday and Sunday Program switch 4 heating on lower level at 23 00 Saturday and Sunday Four programs switches need to be entered TROUBLESHOOTING PROBLEM SOLUTION Days are flashing pressing any key does Time of Day and Day of Week have not nothing except key turns output on been set Se2. 56 is displayed Press Prog key to enter to next program switch Program switch 2 lower level at 17 00 Monday thru Friday Press Ww key until symbol O appears d 385 Press h key to 17 TAG O Press m key to 00 Press day key to 1234 5is displayed Press Prog key to enter to next program switch Program switch 3 lower level at 19 00 Saturday Press w key until symbol O appears i Press h key to 19 HE Q Press m key to 00 Press day key until only 6 is displayed Press Prog key to enter to next program switch Program switch 4 is factory set So you have to delete it E1 Press m key to 59 and press once more to blank out or O press h key to 23 and press once more to blank out Press 6 key display will flash for several sconds and then enter Run Mode IMPORTANT Timer is in the same state temperature level which was before program setting New program will be reflected on the next program switch timer does not look back to determine if it should be on higher or lower level after programming If state of timer is not accord to program then manually temporary override it with key At the next scheduled switching time automatic control resumes eliminating the override ELTHERM AT8 DESCRIPTION OF CONTROL PANEL BWMMWIOO O amp 5 LEGENDA 1 LCD display for exact time and state of 9 key for setting minutes program 7 key for setting h
3. ELTHERM AT8 YOUR PROGRAM SCHEDULES f HEATING LEVEL HIGHER O LOWER o N N eo Len EN EN EN ELTHERM AT8 Programmable room thermostat ELTHERM AT8 User s manual Installation and maintenance instructions FIRST ROTOTEHNIKA PE VELENJE Radegunda 54 Koro ka cesta 56a SI 3320 VELENJE SI 3330 MOZIRJE SLOVENIJA tel 03 898 35 00 fax 03 898 35 35 e mail info rototehnika sp si ELTHERM AT8 DEAR CUSTOMER Congratulations You have bought a programmable room thermostat manufactured according to the latest quality and safety standards It is made according to the state of art and efficiently We are convinced that the use of our product will satisfy your needs to Thanks for your confidence FIRST THE SET CONSIST OF Programmable room thermostat Two wall screws with inlet piece for fixing the thermostat on the wall Instruction for use In case any of above specified elements are missing or are defective require your dealer to replace it Read the instructions carefully in order to be able to make use of all advantages of the product WARNING All examples listed in the instructions are merely indicative The manufacturer accepts no responsibility for incorrect hydraulic connection of machine part of installations should comply with all safety regulations defined by law and the rules We reserve the right to modify the instr
4. bottom part of thermostat lift it with hand and take it off In room thermostat are placed three alkali batteries LRO6 1 5V In upper part is placed one battery for weekly timer and thermometer You must put the new battery in the empty spot and then pull out the used one In lower part there are two batteries for the electronics of thermostat relay You must replace both batteries at time LR6 1 5V AADGP Because of batteries working of thermo yir 15v AA stat is not depending of power supply in case of falling out the power supply the program is saved in thermostat Expired time of batteries is approximately 2 years exploitation of batteries can be noticed when dis play in beginning to fade or relay is not switching AFTER REPLACING THE BATTERIES TURN BOTH KNOBS for higher and lower tem perature TO EXTREME RIGHT AND EXTREME LEFT AND TURN THEM IN ORIGINAL POSITION Turning of knobs is necessary for correct placing the exit of thermostat without erasing the set program from memory Always use alkaline batteries LROG others can leak out and damage the electrical connections Temperature settings Programmable room thermostat has possibility to set two temperature levels between 5 C and 30 C Higher or comfort temperature level 3 with knob nr 4 Lower or economic temperature level O amp with knob nr 5 Settings of lower and higher temperature are independent of eac
5. burner or pump f on 1 2 3 L N 24 240V o_o 50Hz 24 240V o o7 50Hz o Connection of compressor or heating pump fuse 2A 24 240V o o76 E 3 50Hz o 4 compresor op d contactor ELTHERM AT8 DAY KEY SELECTION PRESS DAY KEY DISPLAY DAYS SHOWS Otimes 0 times Monday Saturday Monday Friday Frida 9times 6 Saturday _ O REVIEWING PROGRAM SWITCHES To review the programs at any time press Prog key Programs switches will appear in the order they were entered with repeated presses of the Prog key After all pro grams have been reviewed the blank display will appear to allow entering another program Another press of the Prog key will display the number of free program switches available such as Fr 16 if 4 program switches have been entered MANUAL OVERRIDE TEMPORARY While is selector switch in position pressing the ww key once will reverse the output higher level to lower level or lover to higher level The symbol S appears in the display to indicate a temporary override At the next scheduled switching time automatic control resumes eliminating the override CHANGING A PROGRAM SWITCH Select the program switch to be changed with the Prog key A new set of days may b
6. e SETTING THE TIME lower or higher temperature level Time of day was set while holding the key down but days are still flashing It is 10 00 and a program switch for higher temperature level at 8 00 was entered but the output is on lower level state 5 amp Display shows the and symbols A program for 8AM Monday thru Friday was entered but it will not accept it and is flasing At turning both knobs for setting temperature you not hear switches of relays Display is beginning to fade or relay is not batteries are exploitated Expired time switching of batteries is approximately 2 years Current day of week was not set while holding down the key See SETTING THE TIME After programming the timer does not look back to determine if it should be on higher temperature level Press the key temporary override to turn the output on higher level S and appears in display The timer will assume automatic operation at the next programmed event The higher xx lower O amp level Switch was not entered as part of the program or must be selected slide switch is in position zs batteries are exploitated ELTHERM AT8 Digital programmable timer makes possible to set heating regime for each day or group of days 20 program switches are available The minimum setting of switching time is 1 minute Digital programmable timer enables temporaril
7. e selected with the Day key just as in initial programming Hour and minute can be changed with the h and m keys Press Prog to proceed to next program switch or key to store the new program DELETING A PROGRAM SWITCH To delete only one or a few programs press Prog key until the desired program Switch is displayed Press m key to 59 and press once more to blank out Press h key to 23 and press once more to blank out Press key display will flash for several seconds and then enter the Run Mode Using the RESET key will delete ALL programs the time of day and day of the week and program is set to factory settings ELTHERM AT8 PROGRAMMING SETTING It is helpful to write out the program schedules before beginning See last page IMPORTANT The current time of day and day of week must be set prior to programming See setting the time Example Program switch 1 heating on higher level at 7 00 Monday thru Saturday Program switch 2 heating on lower level at 17 00 Monday thru Friday Program switch 3 heating on lower level at 19 00 Saturday Three programs switches need to be entered For program setting press Prog key only once Display shows factory settings Program switch 1 higher level at 7 00 Monday thru Saturday Press w key until symbol appears ig3U45E Press h key to 07 rnm Press m key to 00 u e u Press day key to 1234
8. equired for each lower level event x NOTE MULTIPLE EVENTS MAY BE PROGRAMMED For example Program switch 1 may turn the office heating on higher level at 08 00 Mon Fri Program 2 may turn the heating on lower level at 17 00 Mon Fri If someone is working late they may press the override key a to turn the office heating on higher level If they forget to press the override key a again when they leave the heating will stay on higher level all night or all weekend To prevent this from occurring additional program switches may be programmed Program 3 can turn the heating on lower level at 18 00 Program 4 can turn the heating on lower level at 19 00 Program 5 can turn the heating on lower level at 20 00 etc IMPORTANT Before proceeding with setting the time and programming the unit press the RESET key to clear all data from the memory
9. h other ELEMENTS OF LCD DISPLAY LCD incorporates a number of different elements to display various data and information Day of the week Run mode symbol Higher 6 35 lower EMITE SIBI O temperature level Time of the day or Switching time Manual override of temperature level operation ELTHERM AT8 SETTING THE TIME NOTE If the h and m keys are held down longer than 2 seconds the numbers will advance rapidly Press and hold the key during the following 1 Press h to advance to the current hour while holding down the key 2 Press m to advance to the current minute while holding down the key 3 Press Day repeatedly to advance to current day while holding down the key NOTE If the days are flashing it indicates the day of the week was not set when setting the time The timer cannot be programmed unless days of the week is entered MANUAL DAYLIGHT TIME CHANGEOVER Each year in the spring press th to advance the time an hour In the fall press th to set back an hour PROGRAM SETTINGS The programmable weekly timer will accept up to 20 programs switches For every program switch is necessary to set 1 Heating level lower O amp or higher 4 temperature level 2 Time of day Hour and Minutes 3 Single day or multiple days A program is required for each higher level event and a program is r
10. ours 8 key for the temporarily manual override of program key for setting the day of the week 10 reset key erasing of all settings 11 key for switching in summer time and back 12 key for input the program 13 key for setting the exact time 2 LCD display for room temperature 3 Slide switch for choosing way of operating 4 Knob for setting higher comfort temperature amp 5 Knob for setting lower economic temperature Slide switch for choosing the way of operating Four ways of operating are available Protection against freezing 8 C EN amp Non stop working on lower economic temperature 3 Non stop working on higher comfort temperature Automatic working according set program With key lt gt 8 is possible temporary switch of working after program This function switches the program from lower economic to higher comfort t tempera ture operation or reverse and it s active until next switch in program That switching between lower economic to higher comfort temperature operation is working after set program the slide switch 3 must be in position ELTHERM AT8 REPLACING OF BATTERIES Replacing of batteries is recommended before every beginning of the heating sea son That s how you assure reliability of working of thermostat With screwdriver you separate room thermostat from support on the wall with pushing the screwdriver into notch on
11. these elements when you fixing T S the thermostat on the wall The thermostat must have at least 1m _chimney distance from these elements a x ia H amp H x room thermostat room thermostat Hy HN IT chimney X gas X X Examples of incorrect montage ELTHERM AT8 ELECTRICAL CONNECTION Unscrew the housing of connection cords and place the bottom of the thermostat on the E wall Conduct of power supply connects on the middle con nection cord 2 Signal for open ing is on connection cord 1 Sig nal for closing is on connection cord 3 Use wire 3x0 75m2 Screw the housing back to his place Housing serves as protec tion against high voltage and at the same time separate low volt 24240v 501z age part from high voltage N POSSIBILITIES OF ELECTRICAL CONNECTION Connection of electromotor ball valve EMV 110 or rotary actuator MV 120 ro Jo MV 120 4 EMV 110 4 fuse 2A LH black1 CLOSE ot ac 24 240V ai black OPEN 50Hz blue Connection of burner or pump OPEN CLOSE 5 2 A 5 2 A o Jo
12. uctions and the technical data of the product without prior notice GENERAL ELTHERM ATS8 is programmable room thermostat with temperature display It has pos sibility to set two temperature levels between 5 C and 30 C lower or economic temperature level O higher or comfort temperature level amp x On the display is shown the correct time and temperature level With the slide switch page 5 is possible to choose way of operation protection against freezing non stop working on lower economic temperature non stop working on higher comfort temperature automatic working according set program ELTHERM AT8 EXAMPLES FOR USE Example of control the rotary actuator Example of leading the gas boiler ELTHERM AT8 c ELTHERM AT8 c sg MV 120 210 Example of regulation of low temperature boiler District heating control for hot water heating with with domestic hot water treatment with room electric motor ball valve and room thermostat thermostat and electric operated diverter valve EMV 110 710s or ROTODIVERT ELTHERM AT8 gll oI ti Hq ELTHERM ATS I l EMV 110 710 BOILER THERMOSTAT 110 820 gt THERMOSTAT Technical data
13. y manual override of program for switching between lower and higher temperature level This manual Switching is active until next program switch Programmable room thermostat can be used for heating and cooling application with suitable electrical connection Programmable room thermostat can control directly rotary actuator for mixing valve electric motor ball valve circulation pump burner MONTAGE OF THERMOSTAT Set the room thermostat on the wall with help of added screws and model hools which are drew on inside of packing cardboard mog It must be set 1 5m up from floor ELS o You must be careful where you montage the thermostat Thermo 5 stat should be placed on neutral place in the room that means that distance must be between thermostat and all heating bodies room thermostat radiators fireplace airing openings window door and gas boiler at v 1m chimneys at least 1m Be careful on direct influence of the sun In case of incorrect montage the room sensor will not perceive correct room temperature and will because of temperature influ ence come to differences which will have for consequence to room thermost high or in most cases to low actual temperature in the room LI T Gas boilers stove kitchen range or chimney also warm up the wall So you must be careful on
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