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Building Technologies Division  User Manual LMS14...  CC1U7471en 
   5 Handling  28.01.2015 
Line no. 
Operating line 
Default value 
Min 
Max 
Unit 
Operator unit  ACS420 ACS700/ACS790 
¦ Status output K35 ¦ Status information K36 ¦ Fan 
shutdown K38 ¦ dT controller 1 K21 ¦ dT controller 
2 K22
 
Heat circuit pump HC1 Q2 ¦ Heat circuit 
pump HC2 Q6 ¦ DHW ctrl elem Q3 ¦ 
Instant heater ctrl elem Q34 ¦ Water filling 
K34 ¦ 2nd boiler pump speed Q27 ¦ Status 
output K35 ¦ Status information K36 ¦ Fan 
shutdown K38 ¦ dT controller 1 K21 ¦ dT 
controller 2 K22
Heat circuit pump HC1 Q2 ¦ Heat circuit 
pump HC2 Q6 ¦ DHW ctrl elem Q3 ¦ 
Instant heater ctrl elem Q34 ¦ Water filling 
K34 ¦ 2nd boiler pump speed Q27 ¦ Status 
output K35 ¦ Status information K36 ¦ Fan 
shutdown K38 ¦ dT controller 1 K21 ¦ dT 
controller 2 K22
6040  Sensor input BX21 module 1 
None ¦ DHW sensor B31 ¦ Collector sensor B6 ¦ 
DHW circulation sensor B39 ¦ Buffer sensor B4 ¦ 
Buffer sensor B41 ¦ Flue gas temp sensor B8 ¦ 
Common flow sensor B10 ¦ Solid fuel boiler sensor 
B22 ¦ DHW charging sensor B36 ¦ Buffer sensor 
B42 ¦ Common return sensor B73 ¦ Cascade return 
sensor B70 ¦ Swimming pool sensor B13 ¦ Solar 
flow sensor B63 ¦ Solar return sensor B64 ¦ Primary 
exch sensor B26
 
Sensor BX21 module 1 
None ¦ DHW sensor B31 ¦ Collector sensor 
B6 ¦ DHW circulation sensor B39 ¦ Buffer 
sensor B4 ¦ Buffer sensor B41 ¦ Flue gas 
temp sensor B8 ¦ Segment flow sensor 
B10 ¦ Solid fuel boiler sensor B22 ¦ DHW 
charging sensor B36 ¦ Buffer sensor B42 ¦ 
Segment return sensor B73 ¦ Cascade 
return sensor B70 ¦ Pool sensor B13 ¦ 
Solar flow sensor B63 ¦ Solar return 
sensor B64 ¦ Primary exch sensor B26
Sensor input BX21 module 1 
None ¦ DHW sensor B31 ¦ Collector sensor 
B6 ¦ DHW circulation sensor B39 ¦ Buffer 
sensor B4 ¦ Buffer sensor B41 ¦ Flue gas 
temp sensor B8 ¦ Segment flow sensor 
B10 ¦ Solid fuel boiler sensor B22 ¦ DHW 
charging sensor B36 ¦ Buffer sensor B42 ¦ 
Segment return sensor B73 ¦ Cascade 
return sensor B70 ¦ Pool sensor B13 ¦ 
Solar flow sensor B63 ¦ Solar return 
sensor B64 ¦ Primary exch sensor B26
None   
6041  Sensor input BX22 module 1 
None ¦ DHW sensor B31 ¦ Collector sensor B6 ¦ 
DHW circulation sensor B39 ¦ Buffer sensor B4 ¦ 
Buffer sensor B41 ¦ Flue gas temp sensor B8 ¦ 
Common flow sensor B10 ¦ Solid fuel boiler sensor 
B22 ¦ DHW charging sensor B36 ¦ Buffer sensor 
B42 ¦ Common return sensor B73 ¦ Cascade return 
sensor B70 ¦ Swimming pool sensor B13 ¦ Solar 
flow sensor B63 ¦ Solar return sensor B64 ¦ Primary 
exch sensor B26
 
Sensor BX22 module 1 
None ¦ DHW sensor B31 ¦ Collector sensor 
B6 ¦ DHW circulation sensor B39 ¦ Buffer 
sensor B4 ¦ Buffer sensor B41 ¦ Flue gas 
temp sensor B8 ¦ Segment flow sensor 
B10 ¦ Solid fuel boiler sensor B22 ¦ DHW 
charging sensor B36 ¦ Buffer sensor B42 ¦ 
Segment return sensor B73 ¦ Cascade 
return sensor B70 ¦ Pool sensor B13 ¦ 
Solar flow sensor B63 ¦ Solar return 
sensor B64 ¦ Primary exch sensor B26
Sensor input BX22 module 1 
None ¦ DHW sensor B31 ¦ Collector sensor 
B6 ¦ DHW circulation sensor B39 ¦ Buffer 
sensor B4 ¦ Buffer sensor B41 ¦ Flue gas 
temp sensor B8 ¦ Segment flow sensor 
B10 ¦ Solid fuel boiler sensor B22 ¦ DHW 
charging sensor B36 ¦ Buffer sensor B42 ¦ 
Segment return sensor B73 ¦ Cascade 
return sensor B70 ¦ Pool sensor B13 ¦ 
Solar flow sensor B63 ¦ Solar return 
sensor B64 ¦ Primary exch sensor B26
None   
6042  Sensor input BX21 module 2 
None ¦ DHW sensor B31 ¦ Collector sensor B6 ¦ 
DHW circulation sensor B39 ¦ Buffer sensor B4 ¦ 
Buffer sensor B41 ¦ Flue gas temp sensor B8 ¦ 
Common flow sensor B10 ¦ Solid fuel boiler sensor 
B22 ¦ DHW charging sensor B36 ¦ Buffer sensor 
Sensor BX21 module 2 
None ¦ DHW sensor B31 ¦ Collector sensor 
B6 ¦ DHW circulation sensor B39 ¦ Buffer 
sensor B4 ¦ Buffer sensor B41 ¦ Flue gas 
temp sensor B8 ¦ Segment flow sensor 
B10 ¦ Solid fuel boiler sensor B22 ¦ DHW 
Sensor input BX21 module 2 
None ¦ DHW sensor B31 ¦ Collector sensor 
B6 ¦ DHW circulation sensor B39 ¦ Buffer 
sensor B4 ¦ Buffer sensor B41 ¦ Flue gas 
temp sensor B8 ¦ Segment flow sensor 
B10 ¦ Solid fuel boiler sensor B22 ¦ DHW 
None