COMBI A - Instruction Manual

6. Setting the time

6. Setting the time clocks (continued) Entering the switching times You have 20 memory Iocations available. Each switching time takes up one memory location. Keep pressing the “Prog” button until a free memory location is shown in the display “– –:– –”. Programme ON or OFF with the “ ” button: “ ”= OFF; “ ”= ON Enter the hour using “h” Enter the minutes using “m” If a switching command is to be carried out every day (1 2 3 4 5 6 7) then store using the “ ” button, otherwise select the day(s) it is to be carried out by using the “Day” button. When the day seIection is left bIank, the programmed switching instruction operates at the same time every day 1 2 3 4 5 6 = Monday – Saturday 1 2 3 4 5 = Monday – Friday 6 7 =Saturday – Sunday Selection of single days: 1 = Mon. .............. 2 =Tues. Save the switching time with the “ ” key. The time switch enters the automatic operating mode and displays the current time of day. Begin any further entry of a switching time with the “Prog” switch. If your entry is incomplete, the segments not yet selected will blink in the display. After programming is completed, and you return the time clock to the current time display with the “ ” key, the time clock will not activate any switching instruction required for the current time. You may need to manually select the desired switching state with the “ ” key. Thereafter, as the unit encounters further switching instructions in the memory in real time, it will correctly activate all subsequent switching instructions. Manual Override Switch “ ” With the “ ” you can change the current setting at any time. The switching program already entered is not altered. Reading the programmed switching times Pressing the “Prog” button displays the programmed switching times until the first free memory location appears in the display “– – : – –”. If you now press the “Prog” button once again, the number of free memory Iocations will be displayed, e.g. “18”. If all memory locations are occupied, the display “00” appears. Changing the programmed switching times Press the “Prog” button repeatedly until the switching time you want to change is displayed. You can now enter the new data. See “Entering the switching times”. Notes on storing switching times: If you end your entry of the switching times by pressing the “Prog” key, then the switching time you have entered will be stored and the next memory location displayed. In addition, a complete switching command is stored automatically after around 90 seconds provided no other button is pressed. The time switch then enters the automatic operating mode and displays the current time again. Deleting individual switching times Press the “Prog” button repeatedly until the switching time you wish to delete is shown in the display. Then set to “– –” using the “h” or “m” button and keep the “ ” button pressed down for around 3 seconds. The switching time is now erased and the current time is displayed. AM / PM time display If you press the “+/-1h” and “h” keys at the same time, the time display switches into the AM/PM mode. 10

7. Description INSTALLER INSTRUCTIONS 10 2 3 8 20 22 21 12 6 1 9 7 4 5 42 1.- Steel chassis complete with expansion vessel 2.- Sealed chamber 3.- Burner and heat exchanger assembly 4.- Air / gas connection 5.- 24 V modulating fan 6.- Gas valve 7.- Ignition electrode 8.- Ionisation probe 9.- Ignitor 10.- Combustion products manifold 11.- Condense trap 12.- Silencer 13.- Electrical box 14.- Pump 15.- Secondary heat exchanger 16.- Pressure gauge 17.- Three way valve 18.- Automatic air vent 19 - Domestic hot water flow switch 20.- Primary flow thermistor 21.- Primary return thermistor 22.- Overheat sensor 23.- Central heating pressure relief valve 13 16 14 15 23 17 18 19 11 Fig. 5 Fig. 6 29 26 25 27 28 30 25.- Display 26.- On/off push button and power on indicator light 27.- Yellow indicator - Comfort button 28.- Reset push button and red indicator lock-out light 29.- DHW control knob and temperature setting 30.- Central Heating control knob and temperature setting 31.- Menu button 32.- Reducing button 33.- Increasing button 34.- Setting button Fig. 7 31 32 33 34 11