2 
 
 
1 - SECTION FOR USERS ...................................................................... 4 
2 - DISPLAYS AND KEYS ....................................................................... 4 
3 - CHANGE OF SETPOINT VALUE ....................................................... 5 
4 - LIST OF ERROR MESSAGES............................................................ 6 
5 - SECTION FOR INSTALLERS............................................................. 6 
6 - INTRODUCTION ................................................................................ 6 
7 - ORDERING CODES........................................................................... 7 
8 - TECHNICAL DATA............................................................................. 8 
9 - ELECTRICAL WIRINGS..................................................................... 9 
10 - WIRING DIAGRAM  ATR121 / ATR141.......................................... 10 
11 - ALARM INTERVENTION MODES .................................................. 13 
12 - MODIFY CONFIGURATION PARAMETERS.................................. 17 
13 - CONFIGURATION PARAMETERS................................................. 18 
14 - TUNING.......................................................................................... 30 
15 - MANUAL START OF TUNING........................................................ 31 
16 - AUTOTUNING................................................................................ 31 
17 - FUNCTION LATCH ON .................................................................. 32 
18 - FUNCTION NEUTRAL ZONE......................................................... 34 
19 - SERIAL COMMUNICATION ........................................................... 35 
20 - MEMORY CARD  (OPTIONAL) ...................................................... 39 
21 - LOADING DEFAULT VALUES........................................................ 41 
22 - SUPERVISORY SYSTEM WITH CONTROLLERS ATR121 / 141.. 42 
23 - CONFIGURATION MEMORANDUM .............................................. 43 
24 - NOTES / UPDATE.......................................................................... 45