Lennox CLIMATIC 60 User Manual page 30

COMPONENTS
Analog input
The 4 analog inputs can be used as NTC probe (-50T90 °C; R/T 10 KΩ at 25 °C) or 4/20mA (Impedance = 100Ω) current signal.
They are confi gurable by pair B1-B2 and B3-B4. The confi guration of the type of the input is automatically set by the CLIMATIC™ 60.
The analog input can be confi gurated to be used as one of these items:
0. not set,
1. desired water set point,
2. desired offset set point,
3. free NTC probe.
Digital input
The 4 digital inputs must be used with dry contacts according to the following example. The digital input can be confi gurated to be
used as one of these items:
0. not set,
1. remote On/Off,
2. remote reset alarm,
3. swap to second water set point,
4. force the cooling mode,
5. force the heating mode,
6. force the dead zone mode,
7. force the defrost delay (10 min),
8. disable circuit 1 (all compressors),
9. disable circuit 2 (all compressors),
10. disable circuit 1(compressor 1),
11. disable circuit 1 (compressor 2),
12. disable circuit 1 (compressor 3),
13. disable circuit 2 (compressor 1),
14. ddisable circuit 2 (compressor 2),
15. ddisable circuit 2 (compressor 3),
16. force A mode,
17. force B mode,
18. force C mode,
19. force D mode,
20. force BMS mode,
21. electrical heaters status,
22. free digital input.
• 28 •
Active
4/20 mA
signal
NTC probe
Passive
4/20 mA
signal
Dry contact
CL60-AC CHILLER-IOM-1011-E