-B- Inputs/Outputs
Description
Range
Units
Value
Analogue input 3. Coil pressure circuit 1 (B3)
bar
INSTANT READ OUT
Analogue input 4. Coil pressure circuit 2 (B4)
bar
INSTANT READ OUT
Analogue input 5. Inlet water temperature (B5)
°C
INSTANT READ OUT
Analogue input 6. Outlet water temperature (B6)
°C
0 = OPEN
C = CLOSED
Digital input 1. External alarm
O/C
0 = OPEN
C = CLOSED
Digital input 2. Flow switch
O/C
0 = OPEN
C = CLOSED
Digital input 3. Remote ON/OFF
O/C
0 = OPEN
C = CLOSED
Digital input 4. Pump 1 protector
O/C
0 = OPEN
C = CLOSED
Digital input 5. Low-pressure switch circuit 1
O/C
0 = OPEN
C = CLOSED
Digital input 6. High-pressure switch circuit 1
O/C
0 = OPEN
C = CLOSED
Digital input 7. Thermal protector compressor 1 circuit 1
O/C
0 = OPEN
C = CLOSED
Digital input 8. Thermal protector compressor 2 circuit 1
O/C
0 = OPEN
C = CLOSED
Digital input 9. Fan 1-2 protectors circuit 1
O/C
0 = OPEN
C = CLOSED
Digital input 10. Low-pressure switch circuit 2
O/C
0 = OPEN
C = CLOSED
Digital input 11. High-pressure switch circuit 2
O/C
0 = OPEN
C = CLOSED
Digital input 12. Thermal protector compressor 3 circuit 2
O/C
0 = OPEN
C = CLOSED
Digital input 13. Thermal protector compressor 4 circuit 2
O/C
0 = OPEN
C = CLOSED
Digital input 14. Fan 3-4 protector circuit 2
O/C
0 = OPEN
C = CLOSED
Digital input 15. Remote COOL/HEAT
O/C
0 = OPEN
C = CLOSED
Digital input 16. Not used
Digital input 17. Not used
Digital input 18. Pump 2 protector
0 = OPEN
C = CLOSED
Digital output 1. Compressor 1 circuit 1
O/C
0 = OPEN
C = CLOSED
Digital output 2. Compressor 2 circuit 1
O/C
0 = OPEN
C = CLOSED
Digital output 3. (Not used)
Digital output 4. (Not used)
Digital output 5. Pump 1
O/C
0 = OPEN
C = CLOSED
Digital output 6. Compressor 3 circuit 2
O/C
0 = OPEN
C = CLOSED
Digital output 7. Compressor 4 circuit 2
O/C
0 = OPEN
C = CLOSED
Digital output 8. (Not used)
Digital output 9. (Not used)
Digital output 10. External alarm / fuse failure
O/C
0 = OPEN
C = CLOSED
Digital output 11. Antifreeze heater
O/C
0 = OPEN
C = CLOSED
Digital output 12. Backup heater
O/C
0 = OPEN
C = CLOSED
Digital output 13. 4-way valve circuit 1
O/C
0 = OPEN
C = CLOSED
Digital output 14. 4-way valve circuit 2
O/C
0 = OPEN
C = CLOSED
1
User manual
1.1
General description of the unit
16
